NAICS Code 621492: Kidney Dialysis Centers
National industry
SBA small business size standard: $47 million in average annual receipts
Definition
This U.S. industry comprises establishments with medical staff primarily engaged in providing outpatient kidney or renal dialysis services.
Government contracts for this service: PSC Q999 Other Medical Services
Code facts
- Part of
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62
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621
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6214
- 62149
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6214
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621
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62
- Contract awards
- 29 In the last 12 months
- Contract obligations
- $1,345,139,892 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 621492
- Dialysis centers and clinics
- Hemodialysis centers and clinics
- Kidney dialysis centers and clinics
- Renal dialysis centers and 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 | $527,365 |
| FY2026 | $536,547,646 |
| FY2025 | $1,345,139,892 |
| FY2024 | $6,609,253 |
| FY2023 | $692,340,292 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Fresenius Medical Care Holdings Inc. | $268,719,798 | |
| 2 | Davita Inc. | $179,490,173 | |
| 3 | American Renal Associates LLC | $32,121,352 | |
| 4 | US Renal Care Inc. | $26,910,387 | |
| 5 | Dialysis Clinic, Inc. | $16,869,230 | |
| 6 | Dialysis Newco, LLC | $6,272,243 | |
| 7 | Correctional Dialysis Services LLC | $3,135,040 | |
| 8 | Total Renal Care Inc. | $855,044 | |
| 9 | Renal Treatment Centers-West, Inc. | $574,789 | |
| 10 | University Kidney Center, LLC | $395,842 |
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Veterans Affairs | $533,622,948 | |
| 2 | Department of Justice | $3,037,938 | |
| 3 | Defense Health Agency | $414,125 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Q999 Other Medical Services | $532,616,212 | |
| 2 | Q201 Medical – Managed Healthcare | $3,298,063 | |
| 3 | Q401 Nursing | $507,579 | |
| 4 | Q509 Family & Internal Medicine Services | $404,600 | |
| 5 | Q508 Hematology & Oncology | $190,554 | |
| 6 | J065 Maintenance, Repair and Rebuilding of Equipment: Medical, Dental, and Veterinary Equipment and Supplies | $58,004 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Massachusetts | $220,765,205 | |
| 2 | Colorado | $126,105,712 | |
| 3 | Texas | $28,390,780 | |
| 4 | Tennessee | $11,161,059 | |
| 5 | California | $855,394 | |
| 6 | Kansas | $444,953 | |
| 7 | Iowa | $325,749 | |
| 8 | Nevada | $311,343 | |
| 9 | Florida | $310,890 | |
| 10 | Missouri | $202,702 | |
| 11 | Guam | $135,384 | |
| 12 | Oklahoma | $106,753 | |
| 13 | Puerto Rico | $105,037 |
Show all 13
Contract opportunities
Show 40 more
Latest 50 of 382 listed here. See the rest on GovTribe.
Size standard history
Federal Register rules that named this code
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 621492?
NAICS 621492 is Kidney Dialysis Centers, a national industry in NAICS 62, Health Care and Social Assistance.
What is the NAICS code for dialysis centers and clinics?
The NAICS code for dialysis centers and clinics is 621492, Kidney Dialysis Centers.
What is the NAICS code for hemodialysis centers and clinics?
The NAICS code for hemodialysis centers and clinics is 621492, Kidney Dialysis Centers.
What is the NAICS code for renal dialysis centers and clinics?
The NAICS code for renal dialysis centers and clinics is 621492, Kidney Dialysis Centers.
When did the size standard for NAICS 621492 last change?
The most recent Federal Register rule on record that names NAICS 621492 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 621492?
Federal contracts under NAICS 621492 obligated $1,345,139,892 in fiscal year 2025 and $2,581,164,448 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 621492?
The contractors with the most obligated under NAICS 621492 in fiscal years 2026 and 2027 are Fresenius Medical Care Holdings Inc. ($268,719,798), Davita Inc. ($179,490,173) and American Renal Associates LLC ($32,121,352).
Which agencies buy the most under NAICS 621492?
The agencies that obligated the most under NAICS 621492 in fiscal years 2026 and 2027 are Department of Veterans Affairs ($533,622,948), Department of Justice ($3,037,938) and Defense Health Agency ($414,125).
Which PSC codes are used with NAICS 621492?
The PSC codes with the most obligated under NAICS 621492 in fiscal years 2026 and 2027 are Q999 Other Medical Services, Q201 Medical – Managed Healthcare and Q401 Nursing.
Where is the work under NAICS 621492 performed?
By place of performance, the states with the most contract obligations under NAICS 621492 over the last 12 months are Massachusetts ($220,765,205), Colorado ($126,105,712) and Texas ($28,390,780).
What is the latest contract opportunity under NAICS 621492?
The latest contract opportunity under NAICS 621492 is Q531--Inpatient Dialysis Services at James Mountain Inhofe Veterans Affairs Medical Center, Tulsa, OK, pre-solicitation from Veterans Integrated Service Network 19 (VHA), posted November 6, 2026.
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See everything under NAICS 621492
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