NAICS Code 621210: Offices of Dentists
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.M.D. (Doctor of Dental Medicine), D.D.S. (Doctor of Dental Surgery), or D.D.Sc. (Doctor of Dental Science) primarily engaged in the independent practice of general or specialized dentistry or dental surgery. These practitioners 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. They can provide either comprehensive preventive, cosmetic, or emergency care, or specialize in a single field of dentistry.
Government contracts for this service: PSC Q503 Dentistry Services
Code facts
- Part of
-
-
62
-
621
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6212
- 62121
-
6212
-
621
-
62
- Contract awards
- 64 In the last 12 months
- Contract obligations
- $25,052,182 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 621210
- DDSs' (doctors of dental surgery) offices (e.g., centers, clinics)
- Dental surgeons' offices (e.g., centers, clinics)
- Dentists' offices (e.g., centers, clinics)
- DMDs' (doctors of dental medicine) offices (e.g., centers, clinics)
- Doctors of dental medicine (DMDs) offices (e.g., centers, clinics)
- Doctors of dental surgery (DDSs) offices (e.g., centers, clinics)
- Endodontists' offices (e.g., centers, clinics)
- Family dentists' offices (e.g., centers, clinics)
- Oral and maxillofacial surgeons' offices (e.g., centers, clinics)
- Oral pathologists' offices (e.g., centers, clinics)
- Orthodontists' offices (e.g., centers, clinics)
- Pathologists', oral, offices (e.g., centers, clinics)
- Periodontists' offices (e.g., centers, clinics)
- Prosthodontists' offices (e.g., centers, clinics)
- Surgeons', dental, 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 | $1,147,492 |
| FY2026 | $19,552,150 |
| FY2025 | $25,052,182 |
| FY2024 | $64,586,464 |
| FY2023 | $63,773,538 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Sterling Medical Associates, Inc. | $4,920,994 | |
| 2 | Kako'o Services LLC | $4,185,349 | |
| 3 | Delta Dental Plan Of Oklahoma | $3,276,881 | |
| 4 | Prairie Band Health Services Inc. | $1,809,920 | |
| 5 | Kelfas Services | $1,030,680 | |
| 6 | Warebrook Health, LLC | $910,504 | |
| 7 | Dentrust Dental New York, P.C. | $894,534 | |
| 8 | Akicita Cyber LLC | $855,033 | |
| 9 | Compass Medical Provider LLC | $843,797 | |
| 10 | The Medical University Of South Carolina | $668,800 |
See the full FY2025 ranking of NAICS 621210 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Defense Health Agency | $9,438,958 | |
| 2 | Department of Health and Human Services | $6,981,567 | |
| 3 | Department of the Army | $3,494,104 | |
| 4 | Department of Veterans Affairs | $668,800 | |
| 5 | Defense Logistics Agency | $214,212 | |
| 6 | Armed Forces Retirement Home | $28,763 | |
| 7 | Department of Justice | $8,060 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Q503 Dentistry Services | $18,978,320 | |
| 2 | Q511 Ophthalmology & Optometry | $1,030,680 | |
| 3 | Q999 Other Medical Services | $478,200 | |
| 4 | 6640 Laboratory Equipment and Supplies | $214,212 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Oklahoma | $3,334,341 | |
| 2 | New Mexico | $1,482,932 | |
| 3 | South Dakota | $1,289,000 | |
| 4 | California | $1,216,155 | |
| 5 | Georgia | $1,030,680 | |
| 6 | Oregon | $919,419 | |
| 7 | New York | $894,534 | |
| 8 | South Carolina | $668,800 | |
| 9 | Colorado | $535,435 | |
| 10 | Michigan | $450,000 | |
| 11 | Florida | $212,442 | |
| 12 | Minnesota | $200,000 | |
| 13 | Indiana | $198,910 | |
| 14 | Maryland | $171,997 | |
| 15 | Montana | $162,576 | |
| 16 | Kentucky | $156,000 | |
| 17 | Kansas | $136,337 | |
| 18 | West Virginia | $112,836 | |
| 19 | Delaware | $104,000 | |
| 20 | U.S. Virgin Islands | $51,710 | |
| 21 | Guam | $40,000 | |
| 22 | Nevada | $38,500 | |
| 23 | Pennsylvania | $9,830 |
Show all 23
Shares are of everything obligated under NAICS 621210 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 1,122 listed here. See the rest on GovTribe.
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 621210?
NAICS 621210 is Offices of Dentists, a national industry in NAICS 62, Health Care and Social Assistance.
What is the NAICS code for dentists' offices (e.g., centers, clinics)?
The NAICS code for dentists' offices (e.g., centers, clinics) is 621210, Offices of Dentists.
What is the NAICS code for endodontists' offices (e.g., centers, clinics)?
The NAICS code for endodontists' offices (e.g., centers, clinics) is 621210, Offices of Dentists.
What is the NAICS code for orthodontists' offices (e.g., centers, clinics)?
The NAICS code for orthodontists' offices (e.g., centers, clinics) is 621210, Offices of Dentists.
When did the size standard for NAICS 621210 last change?
The most recent Federal Register rule on record that names NAICS 621210 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 621210?
Federal contracts under NAICS 621210 obligated $25,052,182 in fiscal year 2025 and $174,111,826 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 621210?
The contractors with the most obligated under NAICS 621210 in fiscal years 2026 and 2027 are Sterling Medical Associates, Inc. ($4,920,994); Kako'o Services LLC ($4,185,349); and Delta Dental Plan Of Oklahoma ($3,276,881).
Which agencies buy the most under NAICS 621210?
The agencies that obligated the most under NAICS 621210 in fiscal years 2026 and 2027 are Defense Health Agency ($9,438,958), Department of Health and Human Services ($6,981,567) and Department of the Army ($3,494,104).
Which PSC codes are used with NAICS 621210?
The PSC codes with the most obligated under NAICS 621210 in fiscal years 2026 and 2027 are Q503 Dentistry Services, Q511 Ophthalmology & Optometry and Q999 Other Medical Services.
Where is the work under NAICS 621210 performed?
By place of performance, the states with the most contract obligations under NAICS 621210 over the last 12 months are Oklahoma ($3,334,341), New Mexico ($1,482,932) and South Dakota ($1,289,000).
What is the latest contract opportunity under NAICS 621210?
The latest contract opportunity under NAICS 621210 is Sources Sought: ISBEE/
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