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NAICS Code· 621999

All Other Miscellaneous Ambulatory Health Care Services

This U.S. industry comprises establishments primarily engaged in providing ambulatory health care services (except offices of physicians, dentists, and other health practitioners; outpatient care centers; medical and diagnostic laboratories; home health care providers; ambulances; and blood and organ banks). Illustrative Examples: Health screening services (except by offices of health practitioners) Physical fitness evaluation services (except by offices of health practitioners) Hearing testing services (except by offices of audiologists) Smoking cessation programs Pacemaker monitoring services Cross-References.Show more

NAICS 621999 — All Other Miscellaneous Ambulatory Health Care Services encompasses specialized outpatient health care services that do not fit into more defined categories such as physician offices, dental clinics, or mental health centers. This includes niche ambulatory services like mobile health units, telehealth coordination platforms, occupational health screenings, travel medicine clinics, and non-routine diagnostic support services delivered outside traditional hospital settings.

36
Active Contracts
$236.7M
Total Obligations (12mo)
256
Awarded Contracts (12mo)
134
Contractors Awarded (12mo)
-58.5%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 621999.

AI Industry Description

NAICS 621999 — All Other Miscellaneous Ambulatory Health Care Services encompasses specialized outpatient health care services that do not fit into more defined categories such as physician offices, dental clinics, or mental health centers. This includes niche ambulatory services like mobile health ...

NAICS 621999 — All Other Miscellaneous Ambulatory Health Care Services encompasses specialized outpatient health care services that do not fit into more defined categories such as physician offices, dental clinics, or mental health centers. This includes niche ambulatory services like mobile health units, telehealth coordination platforms, occupational health screenings, travel medicine clinics, and non-routine diagnostic support services delivered outside traditional hospital settings. In government contracting, this code often supports mission-critical health readiness initiatives, particularly for military personnel, reserve forces, and deployed personnel requiring tailored, on-demand medical support in austere or mobile environments. These services are frequently integrated into broader force health protection and operational medical readiness programs. Top contractors in this space include D2 GOVERNMENT SOLUTIONS, INC. and ALTITUDE TECHNOLOGIES INC., both of which are small businesses specializing in agile, technology-enabled ambulatory care delivery systems. These firms typically provide integrated service platforms that combine clinical workflows, data collection tools, and logistics coordination to support remote or expeditionary health operations. The competitive landscape is characterized by niche specialists with proven capabilities in rapid deployment, regulatory compliance, and interoperability with DoD health information systems. The Department of Defense, including its Army National Guard and United States Property and Fiscal Office, is the dominant buyer, driving demand through force health protection, readiness training, and overseas contingency operations. These agencies require scalable, compliant ambulatory services that can be rapidly fielded to support deployed units, training exercises, and humanitarian missions. The market is highly specialized, with opportunity density concentrated in programs requiring mobile, modular, or technology-integrated health delivery. Contractors with expertise in DoD medical standards, HIPAA-compliant telehealth, and expeditionary clinical logistics are best positioned to compete. Demand is increasingly tied to modernization efforts in operational medicine and the expansion of distributed health care networks across the global force posture.

Top Contractors

Companies with the highest total award value under NAICS 621999, ranked by dollars won.

Ranked by total awards
CompanyTotal AwardsContracts
ACUITY-CHS, LLC$69.8M6
ADVANCED MONITORED CAREGIVING INC$34.9M2
MEDTRONIC CARE MANAGEMENT SERVICES, LLC$23.8M5
COGNOSANTE MVH LLC$19.4M5
FORENSIC DRUG & ALCOHOL TESTING LLC$8.6M2
LMR TECHNICAL GROUP LLC$7.3M2
AVEL ECARE LLC$4.0M5
NATIONWIDE HEALTHCARE SOLUTIONS, LLC$3.6M1
HEALTHCARE RESOURCE NETWORK LLC$3.0M1
Prairie Band Health Services$2.6M1

Top Agencies

Federal agencies directing the most contract spending toward NAICS 621999.

Department Of Homeland Security11 awards$78.0M
Department Of Veterans Affairs38 awards$52.1M
Department Of Veterans Affairs (va)2 awards$34.9M
Department Of Health And Human Services20 awards$18.0M
Department Of Defense40 awards$17.4M
Department Of Agriculture86 awards$10.1M
Department Of Transportation1 award$8.6M
Department Of Justice23 awards$5.0M
Social Security Administration2 awards$3.0M
Great Plains Area Indian Health Svc1 award$2.6M

Related NAICS Codes

Industries similar to All Other Miscellaneous Ambulatory Health Care Services, by shared sector, subsector, and industry group.

Ambulance Services

This industry comprises establishments primarily engaged in providing transportation of patients by ...
621910Same Industry GroupHigh Similarity

Blood and Organ Banks

This U.S. industry comprises establishments primarily engaged in collecting, storing, and distributi...
621991Same Industry GroupHigh Similarity

Offices of Physicians (except Mental Health Specialists)

This U.S. industry comprises establishments of health practitioners having the degree of M.D. (Docto...
621111Same SubsectorMedium Similarity

Offices of Physicians, Mental Health Specialists

This U.S. industry comprises establishments of health practitioners having the degree of M.D. (Docto...
621112Same SubsectorMedium Similarity

Offices of Dentists

This industry comprises establishments of health practitioners having the degree of D.M.D. (Doctor o...
621210Same SubsectorMedium Similarity

Offices of Chiropractors

This industry comprises establishments of health practitioners having the degree of D.C. (Doctor of ...
621310Same SubsectorMedium Similarity

Offices of Optometrists

This industry comprises establishments of health practitioners having the degree of O.D. (Doctor of ...
621320Same SubsectorMedium Similarity

Offices of Mental Health Practitioners (except Physicians)

This industry comprises establishments of independent mental health practitioners (except physicians...
621330Same SubsectorMedium Similarity

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NAICS 621999 FAQ

Frequently Asked Questions

NAICS code 621999 covers All Other Miscellaneous Ambulatory Health Care Services. This U.S. industry comprises establishments primarily engaged in providing ambulatory health care services (except offices of physicians, dentists, and other health practitioners; outpatient care centers; medical and diagnostic laboratories; home health care providers; ambulances; and blood and organ banks). Illustrative Examples: Health screening services (except by offices of health practitioners) Physical fitness evaluation services (except by offices of health practitioners) Hearing testing services (except by offices of audiologists) Smoking cessation programs Pacemaker monitoring services Cross-References.

Recently Posted in All Other Miscellaneous Ambulatory Health Care Services

NAICS: 621999
New
SLED
CCC Los Pinos Center: Pre-Enrollment PhysicalsThe California Conservation Corps is soliciting bids for pre-enrollment physical examinations for its Corpsmember Trainees at the Los Pinos Center in Lake Elsinore, California, with the contract period running from August 1, 2026, through June 30, 2027. The contractor is required to provide all labor, materials, tools, and incidentals to perform complete physical examinations in accordance with the Participant Position Analysis and the Trainee’s Health Questionnaire, ensuring services are delivered by licensed medical professionals compliant with California licensing boards and applicable state and federal regulations including HIPAA, OSHA, and Cal/OSHA. The contract has a fixed ceiling value of $32,000 and follows a Lowest Price Technically Acceptable procurement method, where responsiveness and technical compliance are prerequisites before price is compared, with a 5% preference for small businesses and up to 5% incentive for Disabled Veteran Business Enterprises applied during evaluation. All services must be performed on-site at the designated location, with no alternative delivery or FOB terms specified. Contractors must submit a comprehensive package including signed certifications, proof of insurance with minimum liability coverage of $1 million per occurrence and workers’ compensation as required by law, a completed Payee Data Record, and a detailed Cost Worksheet. Proposals must be submitted electronically via email by July 24, 2026, at 2:00 PM with strict adherence to the required subject line format. The contract mandates compliance with numerous special conditions including prohibition of weapons on state property, disclosure of any use of generative AI in deliverables, adherence to non-discrimination and recycling certification requirements, and reporting of small business and DVBE participation within 60 days of final payment. The State of California retains authority for inspection and acceptance at the performance site, and invoices must be submitted in paper form with original signatures, paid upon approval by the Contract Manager at the Los Pinos Center. Contractors are considered independent entities under the law, and all terms are governed by California state law. Failure to comply with any requirements, including non-standard language, unverified certifications, or unreported use of AI, will result in bid rejection or contract termination.
California Conservation Corps

POSTED

4 days ago

DEADLINE

in 10 days
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NAICS: 621999
New
SLED
EMS Operational Workflow & Best Practices AnalysisThe contract seeks a detailed analysis of current emergency medical services workflows, response protocols, and dispatch efficiency across the state of Mississippi, with the goal of identifying gaps and opportunities for improvement. The selected vendor will be tasked with evaluating existing practices to determine inconsistencies, inefficiencies, and areas where standardization can enhance response times, resource allocation, and overall patient outcomes. This includes reviewing communication systems, crew deployment strategies, interagency coordination, and technology usage in EMS operations. The ultimate deliverable is a set of standardized best practices designed for statewide adoption, ensuring uniformity and elevated performance across all EMS agencies. The work must be grounded in data-driven analysis and aligned with national benchmarks while remaining adaptable to Mississippi’s unique geographic, demographic, and resource challenges. Proposals are due by July 24, 2026, and the contract is positioned as a subcontract under the Mississippi Department of Health, with the NAICS code 621999 indicating it falls under other miscellaneous ambulatory health care services. All work is expected to support a coordinated, statewide EMS improvement initiative.
MS DEPT of HEALTH

POSTED

4 days ago

DEADLINE

in 10 days
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NAICS: 621999
New
Federal
Patient Outreach and Scheduling CoordinationThis contract involves comprehensive patient outreach and scheduling coordination for sleep testing services under a Service-Disabled Veteran-Owned Small Business Set Aside. The scope includes managing patient intake, providing educational materials, scheduling appointments, and conducting follow-up activities through telephonic coordination. Responsibilities encompass obtaining informed consent, distributing sleep test kits, and ensuring seamless communication throughout the patient journey from initial contact to completion of testing. All activities are to be performed in support of the Department of Veterans Affairs, specifically through the 245-NETWORK Contract Office 5, with performance centered in Jacksonville, Florida, 32226. The work is classified under NAICS code 621999 for other miscellaneous health care services and is structured as a subcontract aimed at enabling veteran-owned small businesses to deliver essential health coordination services.
245-NETWORK Contract Office 5 (36C245)

POSTED

5 days ago

DEADLINE

N/A
View Details
NAICS: 621999
Awarded
DIBBS
GENERAL HEALTH CARE SERVICESThe Defense Logistics Agency has awarded The Glocoms Group Inc, with CAGE code 388Y2, a contract valued at $1,355,123.10 for general health care services under solicitation SP330024P1233. The award was issued on July 9, 2026, and the contract spans two identical line items both designated by NSN/part number Q201V00007526, with one also referencing purchase request 7006404326. The work is being performed under a federal procurement vehicle with no specified set-aside classification or NAICS code, and the performing location details are not provided, though the contracting agency is headquartered within the U.S. Department of Defense. All contract-related information is accessible via the DIBBS portal.
Defense Logistics Agency

POSTED

6 days ago

DEADLINE

N/A
View Details
NAICS: 621999
New
SLED
RFP-500-2600000380-6 | Comprehensive Medical ServciesThe Kentucky Department of Corrections is soliciting comprehensive medical services through RFP-500-2600000380-6, with responses due by July 27, 2026. The contract requires the provision of full-spectrum health care services across fourteen state-operated correctional facilities, including general and specialty medical care, mental health services, vision care, diagnostic testing such as laboratory and radiological services, and support for court orders, warrants, and occupational exposure cases. Services must be delivered through onsite, offsite, telehealth, and mobile modalities, with all providers licensed and in good standing with their respective boards. The initial contract term runs from January 1, 2027, to June 30, 2028, and the contractor must have all service agreements finalized within sixty days of contract execution. The NAICS code for this procurement is 621999, and the solicitation is conducted under competitive negotiation guidelines per 200 KAR 5:307. Proposals must be submitted in three distinct parts—Technical Proposal, Cost Proposal, and Proprietary Information if applicable—with each part containing a marked original hard copy and corresponding digital files on thumb drives in Word, Excel, or PDF format only; embedded links and hyperlinks are prohibited. Pricing is strictly confined to the Cost Proposal and must remain valid for at least six months after the due date. Compliance with legal and regulatory requirements is mandatory and forms the basis for award. The contractor must adhere to KRS 45A and KRS 12.210, as well as HIPAA, HITECH, and Kentucky privacy statutes KRS 61.931 through KRS 61.934, with obligations regarding privacy surviving contract termination. The contractor is required to indemnify the Commonwealth for any violations of privacy rules by themselves or their subcontractors. Insurance requirements are stringent: a valid ACORD Certificate of Insurance must be submitted prior to award, naming the Commonwealth and its agents as additional insureds on a primary and non-contributory basis; self-insurance, captive insurers, or fronting policies are prohibited without prior written approval. All subcontractors must be covered under the contractor’s insurance. Evaluation of proposals is based on a weighted scoring system: Technical Proposal (600 points), Qualifications and Experience (150 points), Executive Summary (100 points), and Client References (50
Department of Corrections

POSTED

6 days ago

DEADLINE

in 13 days
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NAICS: 621999
Federal
Case Management & Emergency Care CoordinationThe contract seeks a qualified vendor to provide comprehensive support for clinical operations at the Job Corps Center in Puxico, focusing on case management, emergency care coordination, incident reporting, and the timely updating of standard operating procedures. These services are critical to ensuring the safety, health, and operational efficiency of the center’s participants and staff, requiring coordination across multiple functional areas to maintain compliance and responsiveness in both routine and urgent situations. The work demands a high level of clinical knowledge, administrative precision, and the ability to work within established protocols while adapting to dynamic needs on-site. This is a subcontract classified under the Small Business Administration’s Total Small Business Set-Aside, with the NAICS code 621999 for other miscellaneous ambulatory health care services. The opportunity was posted on July 7, 2026, and responses are due by July 21, 2026, with performance tied to the USDA Forest Service under the Department of Agriculture. Although specific contact details and exact location metrics are not provided, the place of performance is confirmed as Puxico, and the set-aside designation limits eligibility to small businesses, reinforcing the intent to promote small business participation in federal health support activities.
USDA Forest Service

POSTED

8 days ago

DEADLINE

in 7 days
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NAICS: 621999
Federal
Healthcare Staff Credentialing and Privileging SupportThe contract seeks a Service-Disabled Veteran-Owned Small Business to provide administrative support for the credentialing and privileging of laboratory staff within the Department of Veterans Affairs. The scope includes collecting, verifying, and submitting all necessary documentation to VA authorities to ensure compliance with credentialing standards. This support is critical to maintaining proper licensure and operational readiness for laboratory personnel serving VA facilities. The work is to be performed primarily in Wilmington, with a zip code of 19805, and must be completed in alignment with VA protocols and timelines. This subcontract is set aside exclusively for Service-Disabled Veteran-Owned Small Businesses under NAICS code 621999, indicating it falls under Other Miscellaneous Health Assistance Activities. The solicitation was posted on July 7, 2026, with a response deadline of July 22, 2026. The contracting office is the 244-NETWORK Contract Office 4 under the Department of Veterans Affairs, and the successful vendor will be responsible for ensuring accurate and timely processing of credentialing materials to support uninterrupted healthcare delivery. The contract does not include a designated point of contact, and all inquiries must be directed through the SAM.gov portal.
244-NETWORK Contract Office 4 (36C244)

POSTED

8 days ago

DEADLINE

in 7 days
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NAICS: 621999
SLED
RFP-500-2600000380-5 | Comprehensive Medical ServciesThe Kentucky Department of Corrections is soliciting proposals under RFP-500-2600000380-5 for comprehensive medical services, with the request issued on July 7, 2026, and responses due by July 27, 2026. The contract is intended to provide full-scope medical care services to individuals under the custody of the Kentucky Department of Corrections, with performance centered in Frankfort, Kentucky. This solicitation is directed toward entities capable of delivering integrated healthcare solutions, including but not limited to primary care, mental health services, dental care, pharmaceutical management, and chronic disease management within a correctional environment. The point of contact for inquiries is Galena Benassi, reachable via phone or email, with additional support provided by the Department of Corrections office. All proposals must align with the operational and regulatory standards of the state correctional system and be submitted through the designated online portal at the provided UI link.
Department of Corrections

POSTED

8 days ago

DEADLINE

in 13 days
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NAICS: 621999
SLED
Child Abuse Medical ServicesThe contract for Child Abuse Medical Services is a three-year agreement with the Social Services Agency of Orange County, California, running from July 1, 2027, through June 30, 2030, with a possible one-time two-year renewal contingent on performance and funding. It supports the Child Abuse Services Team (CAST), requiring comprehensive forensic and medical exams for children aged birth through 17 and adults with developmental delays or disabilities who cannot be served by adult programs. Key services include assessments and diagnoses by a board-certified child abuse pediatrician, who must provide a minimum of 20 consultation hours per week, physician oversight, medical consultations, court testimony for prosecuted cases, and training for healthcare providers, mandated reporters, and the public on recognizing and responding to child abuse and neglect. The contractor must collaborate with multidisciplinary teams including social services, law enforcement, and prosecutors, and participate in countywide prevention initiatives such as the Child Death Review Team and the Working to End Child Abuse and Neglect Coalition. The services must be delivered in a culturally responsive and linguistically appropriate manner, with all evaluations tied to supporting child sexual abuse assessments when the child is medically stable. The contract mandates strict adherence to security, compliance, and operational standards. The contractor must implement a County-approved Quality Control Plan effective at contract start, ensuring service quality, staff qualifications, and timely corrective actions for deficiencies. All personnel with direct client contact must pass background checks covering the DOJ National Sex Offender Registry, Megan’s Law, and the California Central Child Abuse Index prior to service commencement, and all employees and subcontractors must sign confidentiality agreements. Data security protocols must comply with NIST 800-53 standards, with full cybersecurity and privacy programs in place to protect County data, including mandatory cyber liability coverage of $2 million aggregate and $1 million per occurrence covering data breaches, system failure, and social engineering. Insurance requirements include general liability with separation of insureds and professional liability for negligence claims. The contractor is bound by Title VI of the Civil Rights Act, the ADA, and Section 504 of the Rehabilitation Act, and must comply with federal regulations including 2 CFR Part 200 and FAR provisions. Financial terms specify annual funding of $1,105,900, $1,136,500, and $1,170,500 for each year respectively, totaling $3,412,900, with monthly reimbursement in arre
Social Services Agency

POSTED

8 days ago

DEADLINE

in 24 days
View Details
NAICS: 621999
Closed
DIBBS
BLOOD TYPING KITThe Blood Typing Kit is a diagnostic device designed for ABO/RH blood group determination using a fingerstick sample, containing a pre-impregnated test card with anti-A, anti-B, and anti-RH reagents, along with a lancet, alcohol prep, and pipette. Each unit is packaged as a set of five and must have a shelf life of 18 months, with no more than three months elapsed from manufacturing to government delivery. All packaging must comply with commercial standards and the Medical Marking Standard No. 1, replacing any references to MIL-STD-129, and must clearly display the lot number and date of manufacture prefixed with “MFD.” Shipments must be secured in appropriate exterior containers suitable for safe transport via common carrier at the lowest cost to the designated delivery point at Fort Hood, Texas, with delivery required within 20 days of award. The kit is identified by NSN 6515-01-539-6531 under procurement solicitation SPE2DS-26-T-205X, and all technical and quality requirements are governed by the DLA Master List of Technical and Quality Requirements, with compliance enforced regardless of acquisition size. Government identification must be removed from any non-accepted supplies, and all labeling and packaging must strictly adhere to DLA regulations.
Defense Logistics Agency

POSTED

9 days ago

CLOSED

1 day ago
View Details
NAICS: 621999
Closed
SLED
Vent Beds Services at Rio Grand State HospitalThe Health and Human Services Commission, through its PCS division, is seeking competitive bids to establish a contract for Vent Bed Services at the Rio Grande State Center under solicitation number HHS0017320, posted on May 20, 2026, with a firm deadline of June 4, 2026, at 10:30 a.m. Central Time. The procurement is governed by the Texas Government Code and follows an Invitation for Bid (IFB) process with a contract term running from award through August 31, 2026, with an option for extension at the agency’s sole discretion and subject to funding availability. Bidders must comply with the HHS Uniform Terms and Conditions Version 3.4 and execute the HHS Contract Affirmations without exception, affirming adherence to all contractual, legal, and ethical standards, including compliance with the Texas Public Information Act and federal anti-discrimination laws such as Title VI, Section 504, the ADA, and Title IX. The scope of work requires the contractor to furnish all labor, equipment, materials, and supplies necessary to provide vent bed services, respond to all service requests within four hours during standard business hours (8 a.m. to 5 p.m. Central Time, Monday through Friday), supervise all personnel and subcontractors, ensure proper waste disposal, and maintain strict adherence to state and federal safety, labor, and licensing regulations. Pricing must be submitted as firm, fixed, all-inclusive rates on Exhibit C, covering all associated costs with no reimbursement permitted for incidental expenses such as travel, per diem, office space, or phone calls. The evaluation is based on a best-value determination, prioritizing requirement compliance, price, ability to perform, and delivery capability, with unsatisfactory past performance on the CPA Vendor Performance Tracking System serving as an automatic disqualifier. Bidders must provide comprehensive representations including certifications of not being suspended or debarred, compliance with child support obligations, and disclosure of any ongoing legal proceedings, while also submitting required identifiers such as the SAM UEI, TIN, FEIN, and Texas Franchise Tax Number. Insurance requirements are mandatory and include workers’ compensation with a waiver of subrogation in favor of HHSC, employer’s liability coverage of $1,000,000 per accident and per employee, and primary coverage relative to any state-provided insurance. Submission must occur via the HHS Online Bid Room or email to pcsb
Health and Human Services Commission

POSTED

12 days ago

CLOSED

about 1 month ago
View Details
NAICS: 621999
Closed
Federal
Backup Neurosurgical System Redundancy Integration SupportThe contract seeks technical support to ensure the compatibility and operational readiness of backup neurosurgical system components with the existing Leksell system, a critical infrastructure for neurosurgical procedures at VA facilities. This includes verifying that all redundant hardware and software elements integrate seamlessly with current equipment to maintain uninterrupted service, with a specific emphasis on coordination with VA Biomedical Engineering to validate performance standards, safety protocols, and system interoperability. The work is to be performed in Philadelphia under the oversight of the Department of Veterans Affairs' 244-NETWORK Contract Office 4. This subcontract opportunity, posted on July 2, 2026, requires proposals to be submitted by July 10, 2026, and falls under the NAICS code 621999 for other miscellaneous health services. The focus is on maintaining high reliability and clinical continuity in an environment where system failures could directly impact patient care. All activities must align with VA biomedical standards and involve close collaboration with in-house engineering teams to assess, test, and document the readiness of backup components for deployment. The successful bidder will be expected to deliver detailed verification reports and support documentation to confirm compliance with operational requirements before any integration is finalized.
244-NETWORK Contract Office 4 (36C244)

POSTED

13 days ago

CLOSED

4 days ago
View Details

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