Skip to main contentPsst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveFree Webinar — Wednesday, September 2 at 2:00 PM EDT

Register Free →
logo
Get CLEATUS
← Back to NAICS Codes
NAICS Code· 621493

NAICS 621493: Freestanding Ambulatory Surgical and Emergency Centers

This U.S. industry comprises establishments with physicians and other medical staff primarily engaged in (1) providing surgical services (e.g., orthoscopic and cataract surgery) on an outpatient basis or (2) providing emergency care services (e.g., setting broken bones, treating lacerations, or tending to patients suffering injuries as a result of accidents, trauma, or medical conditions necessitating immediate medical care) on an outpatient basis. Outpatient surgical establishments have specialized facilities, such as operating and recovery rooms, and specialized equipment, such as anesthetic or X-ray equipment. Illustrative Examples: Freestanding ambulatory surgical centers and clinics Freestanding emergency medical centers and clinics Freestanding trauma centers (except hospitals) Urgent medical care centers and clinics (except hospitals) Cross-References.Show more

NAICS 621493 – Freestanding Ambulatory Surgical and Emergency Centers covers outpatient healthcare facilities that provide surgical, diagnostic, and emergency services without requiring overnight hospitalization. These centers deliver time-sensitive, high-acuity care including minor and moderate surgical procedures, trauma stabilization, and urgent diagnostic interventions under state-licensed, Medicare-certified operational frameworks.

$9.0M
Total Obligations (12mo)
9
Awarded Contracts (12mo)
6
Contractors Awarded (12mo)
1
Median Bidders per Award
+148.9%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 621493.

AI Industry Description

NAICS 621493 – Freestanding Ambulatory Surgical and Emergency Centers covers outpatient healthcare facilities that provide surgical, diagnostic, and emergency services without requiring overnight hospitalization. These centers deliver time-sensitive, high-acuity care including minor and moderate sur...

NAICS 621493 – Freestanding Ambulatory Surgical and Emergency Centers covers outpatient healthcare facilities that provide surgical, diagnostic, and emergency services without requiring overnight hospitalization. These centers deliver time-sensitive, high-acuity care including minor and moderate surgical procedures, trauma stabilization, and urgent diagnostic interventions under state-licensed, Medicare-certified operational frameworks. In government contracting, this NAICS supports mission-critical healthcare delivery for active-duty personnel, veterans, and federal beneficiaries through contracts with military treatment facilities, VA networks, and public health emergency response systems. These centers operate under strict regulatory compliance, including OSHA, CMS, and Joint Commission standards, and often integrate with electronic health record systems and telehealth platforms to ensure continuity of care. No contractor data is available to identify leading primes or small businesses in this sector. However, contractors typically include specialized healthcare service providers, outpatient facility operators, and healthcare management organizations with experience in federal compliance, credentialing, and rapid-response care delivery models. No agency data is available to identify primary buyers. Nonetheless, demand is likely driven by the Department of Defense through TRICARE network expansion, the Department of Veterans Affairs for community-based outpatient care initiatives, and the Department of Health and Human Services for public health emergency preparedness programs. The competitive landscape is characterized by high regulatory barriers and localized service requirements, limiting the number of qualified contractors. Opportunities exist for firms with proven experience in ambulatory surgical center operations, federal accreditation, and integrated care coordination. Growing emphasis on decentralized healthcare delivery and post-acute care efficiency is increasing demand for accredited, scalable freestanding centers capable of supporting military and veteran populations in underserved regions.

Top Contractors

Companies with the highest total award value under NAICS 621493, ranked by dollars won.

Ranked by total awards
CompanyTotal AwardsContracts
CHENEGA GOVERNMENT MISSION SOLUTIONS, LLC$5.3M1
BANNER PHOENIX SURGERY CENTER, LLC$1.8M1
LOWCOUNTRY SURGERY CENTER, LLC$1.5M1
WOLF LAKE SERVICES, LLC$260K4
DIOCESAN COUNCIL FOR THE SOCIETY OF ST VINCENT DE PAUL DIOCESE PHOENIX$138K1
ADVANCED LASER SERVICES, LLC$27K1

Top Agencies

Federal agencies directing the most contract spending toward NAICS 621493.

Department Of Health And Human Services1 award$5.3M
Department Of Veterans Affairs4 awards$3.5M
Nuclear Regulatory Commission4 awards$260K

Competition

How many companies historically bid on federal awards in NAICS 621493, from bidder counts reported on USAspending.

Usually Single-Bid

Half or more of reported awards drew exactly one bidder, usually a sign of incumbent-held work rather than an open field. · 809 reported awards

Median Bidders

1

Per reported award, all-time

Single-Bid Awards

77%

Share of reported awards with one bidder

10+ Bidder Awards

1%

Share of reported awards with 10+ bidders

Reported Awards

0

60% of 1,338 total awards

How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.

Industry FamilyCompetitionMedian BiddersSingle-BidBidder MixReported Awards
621493This Code
Freestanding Ambulatory Surgical and Emergency Centers
Usually Single-Bid177%
80960% of 1,338
62149NAICS Industry
Usually Single-Bid169%
9,77376% of 12,808
6214Industry Group
Outpatient Care Centers
Usually Single-Bid152%
29,50284% of 35,264
621Subsector
Usually Single-Bid165%
305,28684% of 361,937
62Sector
Health Care and Social Assistance
Usually Single-Bid171%
550,37684% of 657,209

Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.

Related NAICS Codes

Industries similar to Freestanding Ambulatory Surgical and Emergency Centers, by shared sector, subsector, and industry group.

Family Planning Centers

This industry comprises establishments with medical staff primarily engaged in providing a range of ...
621410Same Industry GroupHigh Similarity

Outpatient Mental Health and Substance Abuse Centers

This industry comprises establishments with medical staff primarily engaged in providing outpatient ...
621420Same Industry GroupHigh Similarity

HMO Medical Centers

This U.S. industry comprises establishments with physicians and other medical staff primarily engage...
621491Same Industry GroupHigh Similarity

Kidney Dialysis Centers

This U.S. industry comprises establishments with medical staff primarily engaged in providing outpat...
621492Same Industry GroupHigh Similarity

All Other Outpatient Care Centers

This U.S. industry comprises establishments with medical staff primarily engaged in providing genera...
621498Same 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

Explore contracts across multiple NAICS codes Browse all NAICS Codes

Ready to Win 621493 Contracts?

Transform opportunities in Freestanding Ambulatory Surgical and Emergency Centers into winning contracts

Advanced search and filtering for NAICS 621493 contracts and opportunities

AI-powered contract matching based on your business capabilities and past performance

Real-time market intelligence, historical award data, and competitive analysis

Automated alerts when new opportunities are posted in your industry classification

Miguel
Hillary
Keith Deutsch
Christine

Join 650+ contractors already using CLEATUS

Dotted
NAICS 621493 FAQ

Frequently Asked Questions

NAICS code 621493 covers Freestanding Ambulatory Surgical and Emergency Centers. This U.S. industry comprises establishments with physicians and other medical staff primarily engaged in (1) providing surgical services (e.g., orthoscopic and cataract surgery) on an outpatient basis or (2) providing emergency care services (e.g., setting broken bones, treating lacerations, or tending to patients suffering injuries as a result of accidents, trauma, or medical conditions necessitating immediate medical care) on an outpatient basis. Outpatient surgical establishments have specialized facilities, such as operating and recovery rooms, and specialized equipment, such as anesthetic or X-ray equipment. Illustrative Examples: Freestanding ambulatory surgical centers and clinics Freestanding emergency medical centers and clinics Freestanding trauma centers (except hospitals) Urgent medical care centers and clinics (except hospitals) Cross-References.

Recently Posted in Freestanding Ambulatory Surgical and Emergency Centers

NAICS: 621493
Closed
Federal
Nuclear Pharmacy and Dispensing SupportThe contract supports the clinical dispensing, patient dosing, and radiation safety services required for the administration of Xofigo® at Veterans Affairs treatment centers. It encompasses all operational aspects of nuclear pharmacy functions, including the preparation, quality control, and safe handling of the radiopharmaceutical, ensuring strict adherence to radiation safety protocols for both patients and personnel. The services are critical for delivering targeted alpha therapy to eligible veterans with metastatic castration-resistant prostate cancer, requiring specialized expertise in radiochemistry and regulatory compliance. This subcontract, published under the NAICS code 621493, is managed by the Department of Veterans Affairs through the 257-NETWORK Contract Office 17. While no set-aside designation is specified, the solicitation is open for responses with a deadline of July 28, 2026, and was posted on July 23, 2026. Performance is expected to occur across multiple VA medical facilities, though specific locations are not detailed. The contract demands a high level of precision, regulatory knowledge, and coordination with clinical teams to ensure accurate dosing and compliance with federal radiation standards.
257-NETWORK Contract Office 17 (36C257)

POSTED

about 1 month ago

CLOSED

about 1 month ago
View Details
NAICS: 621493
Closed
Federal
Radiation Oncology Clinical ServicesThe contract outlines the provision of comprehensive radiation oncology clinical services, encompassing external beam radiation therapy, intensity-modulated radiation therapy, and brachytherapy, all delivered under the direct supervision of licensed physicians. Services include patient simulation, treatment planning oversight, and the full continuum of care necessary for accurate and effective radiation delivery, ensuring clinical quality and patient safety throughout the treatment process. The work is to be performed at the designated facility in Butner, North Carolina, with a zip code of 27509, and must comply with all applicable medical and regulatory standards. This is a subcontract under NAICS code 621493, with a posted date of July 17, 2026, and a response deadline of August 21, 2026, by 7:00 PM. The contracting agency is listed as the Department of Justice, though the specific office or point of contact is not provided. The nature of the subcontract and its alignment with federal healthcare delivery requirements imply that the successful bidder must demonstrate expertise in oncology services, appropriate staffing with certified oncology professionals, and the infrastructure to support advanced radiation modalities. All performance must adhere to the terms established by the prime contractor and meet the clinical expectations set forth by the Department of Justice for this specialized medical support function.
Fao

POSTED

about 1 month ago

CLOSED

9 days ago
View Details
NAICS: 621493
Federal
Surgical Services (General and Specialty Surgery)The contract involves the provision of surgical services encompassing general, orthopedic, and urological procedures. These services are to be delivered either at the onsite location or through approved offsite medical facilities as per the requirements. The contract serves as a subcontract under the Department of Justice, specifically managed by the Fao agency, and is classified under the NAICS code 621493, which pertains to specialty outpatient surgical centers. The designated place of performance for the contract is Pine Knot, with the ZIP code 42635, although no specific state or city details are provided beyond that. The solicitation did not indicate any set-aside preferences or special eligibility criteria. This contract was posted on May 21, 2026, and aims to support the surgical needs relevant to the Department of Justice’s operations by ensuring access to qualified surgical care facilities.
Fao

POSTED

3 months ago

DEADLINE

N/A
View Details
NAICS: 621493
Closed
Federal
Clinical Interpretation and Telemedicine ReportingA board-certified sleep physician will provide clinical interpretation of home sleep apnea test data, generate comprehensive diagnostic reports, and deliver telemedicine consultation support to Veterans Affairs providers to assist in treatment planning. This subcontract is designated as a Service-Disabled Veteran-Owned Small Business Set Aside under NAICS code 621493 and is managed by the Department of Veterans Affairs through the 256-NETWORK Contract Office 16. The work must be performed in Biloxi, Mississippi, with a response deadline of May 15, 2026, at 5:00 PM Eastern Time. The service focuses exclusively on supporting VA clinicians by delivering expert sleep medicine insights remotely, ensuring timely and accurate diagnosis and care coordination for veterans with sleep disorders.
256-NETWORK Contract Office 16 (36C256)

POSTED

4 months ago

CLOSED

4 months ago
View Details
NAICS: 621493
Closed
SLED
General Surgical Clinic OperationsThe contract involves providing comprehensive surgical services at scheduled clinics, encompassing pre-operative assessments, surgical procedures, post-operative monitoring, and thorough documentation. The contractor is responsible for managing all aspects of clinic operations including staffing, logistical coordination, equipment maintenance, and ensuring strict compliance with state medical standards. All services must be delivered efficiently and in accordance with regulatory requirements to support patient safety and care quality. This subcontract is issued by the California Department of Developmental Services under NAICS code 621493 and was posted on April 29, 2026, with a response deadline of May 12, 2026. While specific location details are not provided, the work is to be performed within California under the oversight of the state agency. The contractor must ensure operational readiness and adherence to all applicable medical and administrative protocols without reliance on agency-provided resources for staffing or equipment.
California Department of Developmental Services

POSTED

4 months ago

CLOSED

4 months ago
View Details
NAICS: 621493
Closed
SLED
SURGICAL SERVICES - PR269014
Solicitation # PR269014
The contract solicits surgical services to be provided for individuals at the Porterville Developmental Center (PDC) in California, with a term spanning from July 1, 2026, to June 30, 2029. The contractor must be a licensed surgical professional with expertise in surgical services and demonstrate familiarity with the unique needs of developmentally disabled individuals. The detailed scope of services is outlined in Exhibit A of the Invitation for Bid (IFB). Bidders are required to meet strict minimum qualifications, including proper licensing in the field of surgery, the ability to supply all specified services in accordance with a sample agreement, and having personnel with at least three years of experience working with developmentally disabled populations. Staffing agencies must also have qualified personnel ready at the time of bidding and must submit the candidate's license. The solicitation was posted on April 29, 2026, with a response deadline of May 12, 2026. It is managed by the California Department of Developmental Services, with contact information provided for the primary point of contact, Brandi McElhaney. The location of work performance is within California, specifically at PDC. This contract emphasizes the importance of specialized surgical care tailored to developmentally disabled individuals, ensuring that service providers possess the necessary qualifications and experience to meet these unique requirements.
California Department of Developmental Services

POSTED

4 months ago

CLOSED

4 months ago
View Details
NAICS: 621493
Closed
Federal
Emergency Medical ServicesThe contract requires the provision of 24/7 emergency medical care for inmates, ensuring immediate response either on-site at the facility or at designated hospitals, with full coordination required through the Federal Bureau of Prisons. Services must be available around the clock to address urgent health needs, and responders must be prepared to operate within the constraints of a correctional environment while maintaining compliance with federal protocols. The work will be performed at a location in Sheridan, Oregon, with zip code 97378, and the vendor must be capable of seamlessly integrating with existing BOP operations to ensure continuity and safety. This is a subcontract under a solicitation posted on April 28, 2026, with responses due by May 22, 2026, at 7:00 PM. The NAICS code 621493 indicates the service falls under other ambulatory health care services, specifying the nature of emergency medical response. The contracting agency is the Department of Justice through the Federal Bureau of Prisons, although the listed organization name appears as FAO, which may reflect an internal designation or error. There is no set-aside designation provided, and the contract does not specify a point of contact, requiring potential bidders to review the SAM.gov listing for further details or clarification on submission requirements.
Fao

POSTED

4 months ago

CLOSED

3 months ago
View Details
NAICS: 621493
Closed
Federal
RFI for medical support services to DoS employees and trainees at the Occupational Medical Clinic
Solicitation # 19AQMM26-RFI-MED-1001
Acquisitions - Aqm Momentum

POSTED

4 months ago

CLOSED

4 months ago
View Details
NAICS: 621493
Closed
Federal
Primary and Urgent Care Clinical Services
Acquisitions - Aqm Momentum

POSTED

4 months ago

CLOSED

4 months ago
View Details
NAICS: 621493
Closed
Federal
Mobile Lithotripsy Clinical Services
249-NETWORK Contract Office 9 (36C249)

POSTED

5 months ago

CLOSED

4 months ago
View Details
NAICS: 621493
Closed
Federal
Laser Treatment Services VA Loma Linda HealthCare Systems
Solicitation # 36C26226Q0261_1
This solicitation, titled "Advanced Laser Services VA Loma Linda HealthCare Systems," is issued by the 262-NETWORK Contract Office 22 located in Gilbert, Arizona, with the place of performance in Loma Linda, California. It falls under NAICS code 621493, corresponding to specialized outpatient health care services. The contract involves advanced laser service provisions for the VA Loma Linda HealthCare Systems, although specific details are contained within the referenced Statement of Work (SOW). There is no set-aside designation for this solicitation. Interested parties are required to submit any questions by February 11th, 2026, at 11:00 am MDT, and final proposals are due by February 18th, 2026, at 11:00 am MDT. The primary point of contact for this solicitation is Jordan Alonzo, who can be reached via email or phone for further inquiries. The opportunity was posted on February 4th, 2026, and the full solicitation and response submission are accessible through the federal contracting portal.
262-NETWORK Contract Office 22 (36C262)

POSTED

7 months ago

CLOSED

6 months ago
View Details
NAICS: 621493
Closed
Federal
V-Beam Pulsed-Dye Laser Clinical Services
262-NETWORK Contract Office 22 (36C262)

POSTED

7 months ago

CLOSED

6 months ago
View Details

Win Contracts in Freestanding Ambulatory Surgical and Emergency Centers

Get AI-powered intelligence on NAICS 621493 procurement

Real-time contract opportunities for NAICS 621493 (Freestanding Ambulatory Surgical and Emergency Centers)

AI-powered matching based on your business capabilities and past performance

Competitive analysis of contractors winning awards in this industry

Automated alerts when new opportunities are posted

Miguel
Hillary
Keith Deutsch
Christine

Join 650+ contractors already using CLEATUS