NAICS 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).
$20.5M receiptsSBA size standard
0open contracts now
4posted in the last 12 months
6219Other Ambulatory Health Care Services
Open government contracts under NAICS 621999
Nothing is open under NAICS 621999 today. New solicitations post every day; search all open contracts or check back.
What NAICS 621999 covers
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).
Examples of work in this code:
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
Not in this code
Establishments primarily engaged in the independent practice of medicine are classified in Industry 62111, Offices of Physicians.
Establishments primarily engaged in the independent practice of dentistry are classified in Industry 621210, Offices of Dentists.
Establishments primarily engaged in the independent practice of health care (except offices of physicians and dentists) are classified in Industry Group 6213, Offices of Other Health Practitioners.
Establishments primarily engaged in providing general or specialized outpatient care services are classified in Industry Group 6214, Outpatient Care Centers.
Establishments primarily engaged in providing home health care services are classified in Industry 621610, Home Health Care Services.
Establishments primarily engaged in the transportation of patients by ground or air, along with medical care, are classified in Industry 621910, Ambulance Services.
Establishments known as medical and diagnostic laboratories primarily engaged in providing analytic or diagnostic services are classified in Industry 62151, Medical and Diagnostic Laboratories.
Blood and organ banks are classified in U.S. Industry 621991, Blood and Organ Banks.
SBA size standard
A business is small under NAICS 621999 if it has no more than $20.5 million in average annual receipts (averaged over the last five completed fiscal years, including affiliates).
Source: SBA Table of Size Standards, effective 2023-03-17. Always check the size standard printed in the solicitation itself.
Who buys it
Departments that posted the most NAICS 621999 solicitations in the last two years:
Region IX Emergency Medical Membership Access · Homeland Security · posted September 3, 2026
Dental and Audiology Coordinator for the Vermont Army National Guard · Department of Defense · posted August 24, 2026
Onsite drug testing · Homeland Security · Washington, D.C. · posted August 24, 2026
PRARNG Medical Readiness Events (Periodic Health Assessment/Soldier Readiness Processing) · Department of Defense · posted August 15, 2026
Do this kind of work?
Send XL Eagle your price on an open all other miscellaneous ambulatory health care services job. We write and submit the bid under our registrations. If we win, you do the work at your price. No fees.
NAICS 621999 is 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).
What is the SBA size standard for NAICS 621999?
The size standard for NAICS 621999 is $20.5 million in average annual receipts. Firms at or under it count as small businesses for contracts assigned this code.
Are there government contracts for all other miscellaneous ambulatory health care services?
None are open under NAICS 621999 today, but 4 were posted in the last 12 months. New ones post daily.
Can I bid on NAICS 621999 contracts without registering in SAM.gov?
You need an active SAM.gov registration to win a federal contract in your own name. If you would rather skip that, XL Eagle can bid as the prime contractor using your price, and you do the work as our subcontractor.
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