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NAICS Code· 621512

NAICS 621512: Diagnostic Imaging Centers

This U.S. industry comprises establishments known as diagnostic imaging centers primarily engaged in producing images of the patient generally on referral from a health practitioner. Illustrative Examples: Computer tomography (CT-scan) centers Medical radiological laboratories Dental or medical X-ray laboratories Ultrasound imaging centers Magnetic resonance imaging (MRI) centers Show more

NAICS 621512 – Diagnostic Imaging Centers encompasses outpatient facilities that provide advanced medical imaging services such as X-ray, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, mammography, and nuclear medicine procedures. These centers operate under strict regulatory frameworks, including HIPAA compliance and accreditation by bodies like the American College of Radiology, and often support federal health initiatives through contracted imaging services for military, veteran, and public health populations.

19
Active Contracts
$88.9M
Total Obligations (12mo)
236
Awarded Contracts (12mo)
67
Contractors Awarded (12mo)
1
Median Bidders per Award
+12.1%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 621512.

AI Industry Description

NAICS 621512 – Diagnostic Imaging Centers encompasses outpatient facilities that provide advanced medical imaging services such as X-ray, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, mammography, and nuclear medicine procedures. These centers operate under strict regulator...

NAICS 621512 – Diagnostic Imaging Centers encompasses outpatient facilities that provide advanced medical imaging services such as X-ray, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, mammography, and nuclear medicine procedures. These centers operate under strict regulatory frameworks, including HIPAA compliance and accreditation by bodies like the American College of Radiology, and often support federal health initiatives through contracted imaging services for military, veteran, and public health populations. In the government contracting landscape, this NAICS code bridges clinical care delivery and federal healthcare infrastructure, enabling agencies to extend diagnostic capacity without establishing full-scale hospital-based radiology departments. The top contractor in this sector is UNITED TRINITY INVESTMENT GROUP, LLC, a small business that provides managed imaging services through facility operations, equipment procurement, and staffing solutions tailored to federal health programs. The competitive landscape is dominated by specialized healthcare service providers with expertise in outpatient imaging logistics, regulatory compliance, and tele-radiology integration, with many contractors leveraging small business set-asides and 8(a) programs to compete for federal awards. The Department of Health and Human Services is the primary federal buyer, driving demand through its agencies including the Centers for Medicare & Medicaid Services, the Indian Health Service, and the Public Health Service. These programs seek to expand access to diagnostic imaging in underserved communities, support military medical readiness, and improve chronic disease management through early detection. The market presents consistent opportunities for contractors with proven capabilities in mobile and fixed-site imaging operations, electronic health record interoperability, and quality assurance protocols. Demand is increasingly tied to preventive care initiatives and rural health equity programs, creating openings for agile providers who can deliver scalable, compliant, and technologically integrated diagnostic services across federal health networks.

Small Business Size Standard

The SBA threshold that decides who can bid NAICS 621512 work as a small business.

$19.0M
Applies to the whole industry code

The SBA cap for this NAICS (13 CFR 121.201). A business at or under it can self-certify as small for work in this code, which is what makes it eligible for a small-business set-aside. The cap is set per NAICS, so the same company can be small in one code and not in another.

13 CFR 121.201, effective January 1, 2026. The SBA revises the table roughly once a year.

Top Contractors

Companies with the highest total award value under NAICS 621512, ranked by dollars won.

Ranked by total awards
CompanyTotal AwardsContracts
VETMED GROUP LLC$52.0M62
VALOR NETWORK, INC.$11.6M35
MYSTIC VENTURES GROUP LLC$4.1M8
SALVADORINI CONSULTING LLC$2.8M4
DIAGNOSTIC IMAGING ASSOCIATES, INC.$1.6M6
ANSIBLE GOVERNMENT SOLUTIONS, LL$1.5M1
PRIME TRI PROVIDERS LLC$1.4M2
SHARED MEDICAL SERVICES INC$1.4M3
ADVANCED IMAGING MANAGEMENT, LLC$1.3M3
BTL TECHNOLOGIES, INC.$1.3M1

Top Agencies

Federal agencies directing the most contract spending toward NAICS 621512.

Department Of Veterans Affairs104 awards$61.5M
Department Of Defense33 awards$9.6M
Department Of Health And Human Services31 awards$9.4M
244-NETWORK Contract Office 4 (36C244)2 awards$5.3M
Department Of Justice62 awards$1.7M
257-NETWORK Contract Office 17 (36C257)1 award$900K
Fao1 award$300K
Department Of Veterans Affairs (va)1 award$201K
National Aeronautics And Space Administration1 award$58K

Competition

How many companies historically bid on federal awards in NAICS 621512, 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. · 9,384 reported awards

Median Bidders

1

Per reported award, all-time

Single-Bid Awards

67%

Share of reported awards with one bidder

10+ Bidder Awards

1%

Share of reported awards with 10+ bidders

Reported Awards

9,384

82% of 11,470 total awards

Bidder Count Distribution by Fiscal Year

Share of reported awards in each bidder-count bracket per federal fiscal year.

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
621512This Code
Diagnostic Imaging Centers
Usually Single-Bid167%
9,38482% of 11,470
62151NAICS Industry
Usually Single-Bid172%
47,93277% of 61,939
6215Industry Group
Medical and Diagnostic Laboratories
Usually Single-Bid172%
47,93277% of 61,939
621Subsector
Usually Single-Bid165%
305,49284% of 362,305
62Sector
Health Care and Social Assistance
Usually Single-Bid171%
550,70684% of 657,924

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 Diagnostic Imaging Centers, by shared sector, subsector, and industry group.

Medical Laboratories

This U.S. industry comprises establishments known as medical laboratories primarily engaged in provi...
621511Same 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

Offices of Physical, Occupational and Speech Therapists, and Audiologists

This industry comprises establishments of independent health practitioners primarily engaged in one ...
621340Same SubsectorMedium Similarity

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NAICS 621512 FAQ

Frequently Asked Questions

NAICS code 621512 covers Diagnostic Imaging Centers. This U.S. industry comprises establishments known as diagnostic imaging centers primarily engaged in producing images of the patient generally on referral from a health practitioner. Illustrative Examples: Computer tomography (CT-scan) centers Medical radiological laboratories Dental or medical X-ray laboratories Ultrasound imaging centers Magnetic resonance imaging (MRI) centers

Recently Posted in Diagnostic Imaging Centers

NAICS: 621512
Awarded
Federal
Grand Junction VAMC - Teleradiology Services
Solicitation # 36C25926D0053
The Department of Veterans Affairs, through Network Contract Office 19, has established a sole-source, firm-fixed-price contract for off-site teleradiology physician services to support the Western Colorado Health Care System in Grand Junction, Colorado. This contract, identified by solicitation number 36C25926D0053, is set aside for a Service-Disabled Veteran-Owned Small Business and has been awarded to VetMed Group LLC. The primary objective is to ensure uninterrupted radiology coverage for the facility, as the urgent need for these services made a competitive acquisition process impractical due to the extensive timelines required for onboarding and credentialing. The period of performance for these services spans six months, effective from July 1, 2026, through December 31, 2026. Classified under NAICS code 621512, the agreement focuses on maintaining critical diagnostic capabilities for the Grand Junction VAMC. Administrative oversight for the contract is managed by the office located in Greenwood Village, Colorado.
Network Contract Office 19 (36C259)

POSTED

4 days ago

DEADLINE

N/A
View Details
NAICS: 621512
New
Federal
Cervical and Gynecologic Histology Coding ServicesThis subcontract for Cervical and Gynecologic Histology Coding Services supports prime contractors on NIH National Cancer Institute projects. The selected provider will perform professional medical coding for histology results related to the cervix, endometrium, and ovary by reviewing pathology reports from biopsies, excisional procedures, and hysterectomies. All results must be coded using ICD-O or equivalent oncology standards and integrated into annual data sets. The project is based in Bethesda and requires personnel to hold a Certified Professional Coder (CPC) or Certified Histotechnologist (HT/HTL) certification. This opportunity falls under NAICS code 621512 and is managed through the Department of Health and Human Services. The response deadline for this requirement is October 26, 2026.
NIH Nci

POSTED

5 days ago

DEADLINE

in 13 days
View Details
NAICS: 621512
New
Federal
3D Image Reconstruction and Case Planning Services
Solicitation # 36C24826Q1057
The Department of Veterans Affairs Network Contracting Office 8 is soliciting quotations for off-site 3D Image Reconstruction and Case Planning Services to support the Malcom Randall VA Medical Center within the North Florida/South Georgia VA Healthcare System. The contractor will be responsible for the acquisition, quality assessment, and multiplanar reformatting of digital CT scan images to produce 3D reconstruction tools and interactive models for endovascular procedure planning. Key deliverables include patient-specific image suites and interactive 3D models of aneurysms allowing for 60-degree manipulation, delivered via the secure bi-directional Medicom Imagex exchange service. The contract is structured as a firm-fixed price award with a base period from December 22, 2026, to December 21, 2027, and three subsequent one-year option periods. This procurement is a 100% total small business set-aside under NAICS 621512. Award decisions will be based on best value, evaluating technical capability, past performance, and socioeconomic status, which collectively carry significantly more weight than price. Contractors must maintain professional liability insurance of $1,000,000 per occurrence and $3,000,000 aggregate, and must strictly adhere to HIPAA, the Privacy Act, and VA cybersecurity directives. Performance will be monitored via a Quality Assurance Surveillance Plan focusing on patient safety and turnaround times, with a 100% standard for urgent cases typically required within 24 to 48 hours. Quotations must be submitted in five distinct volumes by October 28, 2026.
248-NETWORK Contract Office 8 (36C248)

POSTED

5 days ago

DEADLINE

in 16 days
View Details
NAICS: 621512
Awarded
Federal
Teleradiology - Sole Source STX
Solicitation # 36C25726D0097
The Department of Veterans Affairs, specifically Network Contract Office 17, is awarding a sole-source, short-term bridge contract for teleradiology services to support the South Texas Veterans Health Care System in San Antonio, Texas. This action is being taken under the justification of unusual and compelling urgency to ensure there is no disruption in patient care while a long-term competitive acquisition is developed. The contract is designated as a Service-Disabled Veteran-Owned Small Business set-aside under NAICS code 621512. The agreement is a six-month fixed-price contract awarded to VetMed Group LLC with an estimated value of 786,750.00 dollars. Formal approval for this procurement was signed on September 16, 2026, under solicitation number 36C25726D0097. The primary point of contact for this requirement is Christopher Herrera.
257-NETWORK Contract Office 17 (36C257)

POSTED

12 days ago

DEADLINE

N/A
View Details
NAICS: 621512
Awarded
Federal
Q522--CTX Mobile Austin MRI Lease
Solicitation # 36C25726P0827
The Department of Veterans Affairs, through Network Contract Office 17, has issued an award notice for the Q522-CTX Mobile Austin MRI Lease. This contract, identified by solicitation number 36C25726P0827, is specifically designated as a Service-Disabled Veteran-Owned Small Business set-aside under NAICS code 621512. The services associated with this award will be performed in Austin, Texas, within the 78744 zip code. Administrative oversight for the contract is managed by the office located in San Antonio, Texas, with Vance Farrell serving as the primary point of contact for the procurement.
257-NETWORK Contract Office 17 (36C257)

POSTED

13 days ago

DEADLINE

N/A
View Details
NAICS: 621512
Closed
Federal
Q522--VISN Teleradiology Staffing Services - **Please convert the 21 specialized teleradiology scans on pages 21 thru 23 into FTE hours** This is not a Request for Quote.
Solicitation # 36C24426Q0972
The Department of Veterans Affairs VISN 4 is seeking a qualified U.S.-based contractor to provide professional teleradiology staffing services for seven medical facilities located in Pennsylvania and Delaware. This five-year contract, estimated to run from December 31, 2026, to December 30, 2031, aims to mitigate significant patient safety risks by filling critical coverage gaps during weekday overnights, weekends, and federal holidays. The contractor will provide licensed radiologists to perform final interpretations for STAT and routine imaging studies across multiple modalities, including CT, CR/XR, DX, MR/MRA, Ultrasound, Mammography, and Nuclear Medicine. All services must be performed within the United States, and the contractor must maintain a secure network connection with at least 99 percent uptime to integrate with VA systems such as VistA, CPRS, and Philips Intellispace PACS. Performance is measured by strict turnaround time standards, with STAT studies generally requiring reports within 45 to 60 minutes and critical findings communicated within 15 to 60 minutes. The contract is structured as a Firm Fixed Price agreement based on FTE hours, with a focus on reducing late reporting rates to a target of 10 percent within the first year. Key personnel requirements include a Program Manager, Medical Director, and IT Systems Integration Lead. The contractor must ensure all radiologists are board-certified, licensed in the applicable states, and adhere to ACR and JCAHO standards. Compliance is monitored through automated TAT reports, random quality sampling, and quarterly audits of critical findings. This requirement is currently being processed as a Sources Sought notice with a potential set-aside for Service-Disabled Veteran-Owned Small Businesses.
244-NETWORK Contract Office 4 (36C244)

POSTED

14 days ago

CLOSED

3 days ago
View Details
NAICS: 621512
Awarded
International
Breast Screening Service
Solicitation # C026
The North Cheshire & Mersey NHS Foundation Trust has issued an award notice for the Breast Screening Service under solicitation number C026. This contract facilitates a collaborative effort to provide essential NHS breast screening and assessment services specifically for patients in St Helens and Knowsley. The scope of the agreement involves the provision of consultant radiologists and the utilization of the Burney Breast Screening Unit. This arrangement ensures the continued delivery of existing services as part of the wider regional breast screening programme.
North Cheshire & Mersey Nhs Foundation Trust

POSTED

14 days ago

DEADLINE

N/A
View Details
NAICS: 621512
Awarded
International
Insourced MRI Medical Imaging Services - NLAG
Solicitation # C473975
The Northern Lincolnshire and Goole NHS Foundation Trust has issued a direct award contract for the provision of insourced MRI medical imaging services. Identified by solicitation number C473975, the agreement was posted on September 28, 2026. The contract is managed by the Northern Lincolnshire and Goole NHS Foundation Trust, with Neil Dodds serving as the primary point of contact. This award focuses on securing specialized medical imaging capabilities to support the trust's diagnostic requirements.
Northern Lincolnshire and Goole NHS Foundation Trust

POSTED

14 days ago

DEADLINE

N/A
View Details
NAICS: 621512
Closed
Federal
Therapeutic Medical Physics ServicesThis subcontract for Therapeutic Medical Physics Services supports prime contractors providing medical physics expertise at Department of Veterans Affairs medical centers. The scope of work involves executing clinical physics duties using VA therapeutic radiology equipment and the development and maintenance of Quality Improvement and Quality Assurance programs. All services must strictly adhere to HIPAA and Joint Commission standards, with the final deliverables consisting of on-site clinical physics services and comprehensive QA reports. The opportunity is associated with the Department of Veterans Affairs Network Contract Office 8 and falls under NAICS code 621512. The response deadline for this requirement is October 1, 2026, with performance taking place in the 58332 zip code area.
248-NETWORK Contract Office 8 (36C248)

POSTED

19 days ago

CLOSED

11 days ago
View Details
NAICS: 621512
Closed
Federal
Q527--Locum - Medical Physicist - Onsite - 621 1-YR ER Contract
Solicitation # 36C24926Q0380
Solicitation 36C24926Q0380 is a 100 percent set-aside for Service-Disabled Veteran-Owned Small Businesses (SDVOSB) to provide on-site Medical Physicist services at the James H. Quillen VA Medical Center in Mountain Home, Tennessee. The base period of performance runs from October 1, 2026, to September 30, 2027. While the current primary requirement is for vacation coverage, the scope may evolve into full-time on-site coverage. The contractor is responsible for developing and maintaining a quality management program for dosimetry systems and providing written reports on the evaluation of therapy machines, radiation sources, and CT simulators. The facility utilizes Varian Truebeam linear accelerators and a Phillips 64 slice big bore scanner, treating approximately 200 patients per year with procedures including SBRT, IGRT, IMRT/VMAT, and 3D. The contract requires the Therapeutic Medical Physicist to be board certified and approved by the National Office (NROP). Evaluation for award is based on the most advantageous proposal, where past performance and technical qualifications are significantly more important than price. Offerors must provide at least three references and detailed personnel qualifications, including licenses and CVs. Key administrative requirements include the use of the Electronic Invoice Presentment and Payment System (IPP) via OB10 and adherence to VA background investigation standards. The contractor must also provide a conflict of interest certification and comply with the Immigration and Nationality Act of 1952. Performance is monitored through a Quality Assurance Surveillance Plan involving periodic inspections and random sampling of medical records.
249-NETWORK Contract Office 9 (36C249)

POSTED

19 days ago

CLOSED

13 days ago
View Details
NAICS: 621512
Closed
Federal
Medical Physicist Professional ServicesThis subcontract for Medical Physicist Professional Services involves providing onsite clinical medical physics support for prime contractors at the James H. Quillen VAMC. The scope of work includes delivering professional medical physics coverage, providing vacation coverage, and potentially offering full-time onsite support. The selected provider must maintain all necessary professional licensure and certifications required for medical physics practice, obtain National Office (NROP) approval, and comply with VA medical liability insurance requirements. The opportunity is designated as a Service-Disabled Veteran-Owned Small Business set-aside under NAICS code 621512. It is managed by the Department of Veterans Affairs Network Contract Office 9. The solicitation was posted on September 22, 2026, with a response deadline of September 29, 2026.
249-NETWORK Contract Office 9 (36C249)

POSTED

21 days ago

CLOSED

13 days ago
View Details
NAICS: 621512
Federal
Medical Physics Support (Mammography)This subcontract opportunity is for the provision of professional medical physics services to support prime contractors on projects for the Phoenix Area Indian Health Service. The primary scope of work involves performing quality assurance and physics testing for mammography equipment to ensure proper calibration and strict adherence to MQSA compliance. These services require the use of specialized physics testing equipment and the delivery of formal physics test reports and equipment calibration certifications. The contract is designated as a Service-Disabled Veteran-Owned Small Business set-aside under NAICS code 621512. Qualified providers must hold Certified Medical Physicist credentials to perform the work. The place of performance is located in Phoenix, Arizona, with a response deadline of October 14, 2026.
Phoenix Area Indian Health Svc

POSTED

21 days ago

DEADLINE

in 2 days
View Details

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