NAICS Code 621310: Offices of Chiropractors
National industry
SBA small business size standard: $9 million in average annual receipts
Definition
This industry comprises establishments of health practitioners having the degree of D.C. (Doctor of Chiropractic) primarily engaged in the independent practice of chiropractic. These practitioners provide diagnostic and therapeutic treatment of neuromusculoskeletal and related disorders through the manipulation and adjustment of the spinal column and extremities, and operate private or group practices in their own offices (e.g., centers, clinics) or in the facilities of others, such as hospitals or HMO medical centers.
Government contracts for this service: PSC Q518 Physical Medicine and Rehabilitation Services and PSC Q201 Managed Healthcare Services
Code facts
- Part of
-
-
62
-
621
-
6213
- 62131
-
6213
-
621
-
62
- Contract awards
- 3 In the last 12 months
- Contract obligations
- $204,261 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Business activities under NAICS 621310
- Chiropractors' offices (e.g., centers, clinics)
- DCs' (doctors of chiropractic) offices (e.g., centers, clinics)
- Doctors of chiropractic (DCs) offices (e.g., centers, clinics)
Looking for another activity? Search the NAICS code lookup or browse business activities from A to Z.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $438,458 |
| FY2025 | $204,261 |
| FY2024 | $454,122 |
| FY2023 | $555,070 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Chenega Government Mission Solutions, LLC | $150,000 | |
| 2 | Garret E. Oyler DC, P.C. | $146,313 | |
| 3 | LSG Educational Services LLC | $67,905 | |
| 4 | Will Family Chiropractic, PLLC | $54,450 | |
| 5 | Michael TECH Systems LLC | $19,790 |
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Health and Human Services | $350,763 | |
| 2 | Department of the Interior | $67,905 | |
| 3 | Department of Veterans Affairs | $19,790 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Q518 Physical Medicine and Rehabilitation Services | $217,905 | |
| 2 | Q201 Medical – Managed Healthcare | $204,450 | |
| 3 | 6515 Medical and Surgical Instruments, Equipment, and Supplies | $19,790 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Oklahoma | $350,763 | |
| 2 | New Mexico | $67,905 | |
| 3 | Virginia | $19,790 |
Contract opportunities
Show all 48
Size standard history
Federal Register rules that named this code
Proposed size standard changes
| Proposed rule | Published | Comments |
|---|---|---|
| Small Business Size Standards: Monetary-Based Industry Size Standards | Closed Oct 21, 2025No final rule found |
From the NAICS codes each rule's amendments to 13 CFR 121.201 name. Rules that print their size standard tables as images aren't listed.
Quick answers
What is NAICS 621310?
NAICS 621310 is Offices of Chiropractors, a national industry in NAICS 62, Health Care and Social Assistance.
What is the NAICS code for chiropractors' offices (e.g., centers, clinics)?
The NAICS code for chiropractors' offices (e.g., centers, clinics) is 621310, Offices of Chiropractors.
What is the NAICS code for doctors of chiropractic (DCs) offices (e.g., centers, clinics)?
The NAICS code for doctors of chiropractic (DCs) offices (e.g., centers, clinics) is 621310, Offices of Chiropractors.
What is the NAICS code for DCs' (doctors of chiropractic) offices (e.g., centers, clinics)?
The NAICS code for DCs' (doctors of chiropractic) offices (e.g., centers, clinics) is 621310, Offices of Chiropractors.
When did the size standard for NAICS 621310 last change?
The most recent Federal Register rule on record that names NAICS 621310 in the SBA's size standards is "Small Business Size Standards: Adjustment of Monetary-Based Size Standards, Disadvantage Thresholds, and 8(a) Eligibility Thresholds for Inflation" (87 FR 69118), published Nov 17, 2022 and effective Dec 19, 2022.
How much do federal agencies spend under NAICS 621310?
Federal contracts under NAICS 621310 obligated $204,261 in fiscal year 2025 and $1,651,911 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 621310?
The contractors with the most obligated under NAICS 621310 in fiscal years 2026 and 2027 are Chenega Government Mission Solutions, LLC ($150,000); Garret E. Oyler DC, P.C. ($146,313); and LSG Educational Services LLC ($67,905).
Which agencies buy the most under NAICS 621310?
The agencies that obligated the most under NAICS 621310 in fiscal years 2026 and 2027 are Department of Health and Human Services ($350,763), Department of the Interior ($67,905) and Department of Veterans Affairs ($19,790).
Which PSC codes are used with NAICS 621310?
The PSC codes with the most obligated under NAICS 621310 in fiscal years 2026 and 2027 are Q518 Physical Medicine and Rehabilitation Services; Q201 Medical – Managed Healthcare; and 6515 Medical and Surgical Instruments, Equipment, and Supplies.
Where is the work under NAICS 621310 performed?
By place of performance, the states with the most contract obligations under NAICS 621310 over the last 12 months are Oklahoma ($350,763), New Mexico ($67,905) and Virginia ($19,790).
What is the latest contract opportunity under NAICS 621310?
The latest contract opportunity under NAICS 621310 is OT & cota services, award notice from Bureau of Indian Education (BIA), posted September 10, 2026.
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