Top SSA offices of physicians (except mental health specialists) contractors
In the 12 months ending Oct 5, 2026, the Social Security Administration obligated $28.6M in net prime contract dollars under NAICS 621111, up 8.5% from $26.4M in the preceding 12 months. 145 prime contractors received positive obligations, and 78 of them accounted for 80% of that spend.
Prime contracts funded by the Social Security Administration. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top SSA contractors for NAICS 621111
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | Nancy M Simpkins | $900K | $975K | 3.1% | — |
| 2 | Locum Inc | $780K | $621K | 2.7% | — |
| 3 | American Health Consultants Inc. | $705K | $343K | 2.5% | ▲ 12 |
| 4 | The Axon Group, Ltd | $504K | $315K | 1.8% | ▲ 13 |
| 5 | Dorothy ANN Leong, M.D., P.A. | $503K | $604K | 1.8% | ▼ 2 |
| 6 | Amita Hegde MD PLLC | $483K | $354K | 1.7% | ▲ 7 |
| 7 | Schaffzin, Lawrence | $460K | $398K | 1.6% | ▲ 1 |
| 8 | SAI R Nimmagadda | $446K | $499K | 1.6% | ▼ 3 |
| 9 | Alka Bishnoi MD | $446K | $346K | 1.6% | ▲ 5 |
| 10 | Flatirons Medical Consultants, LLC. | $409K | $528K | 1.4% | ▼ 6 |
| 11 | Javier Torres | $404K | $301K | 1.4% | ▲ 9 |
| 12 | Chopra MD Arvind | $402K | $375K | 1.4% | ▼ 2 |
| 13 | David E. Braverman Consulting, Inc. | $389K | $300K | 1.4% | ▲ 9 |
| 14 | Lotususa, Inc. | $388K | $244K | 1.4% | ▲ 17 |
| 15 | Spitz Gary Franklin | $381K | $381K | 1.3% | ▼ 6 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- American Health Consultants Inc.$343K → $705K (+$361K) · now #3
- Emergency Diagnostic Solutions LLC$17K → $335K (+$318K) · now #23
- Buda Francis B MD−$252K → $0 (+$252K) · no latest-period obligations
Largest declines
- Innovations International LLC$261K → −$124K (−$385K) · no latest-period obligations
- Celio Burrowes, MD. PC, Inc.$245K → $0 (−$245K) · no latest-period obligations
- Colleen M Ryan$220K → −$8K (−$228K) · no latest-period obligations
Where the money comes from
Funding sub-agencies within the Social Security Administration, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Social Security Administration | $28.6M | $26.4M | Up $2.2M (8.5%) |
Common questions
Who are the top SSA contractors for NAICS 621111?
In the latest 12 months, Nancy M Simpkins ($900K), Locum Inc ($780K), American Health Consultants Inc. ($705K) received the most SSA obligations for offices of physicians (except mental health specialists).
How concentrated is this market?
The eight largest primes held 16.6% of positive obligations, and Nancy M Simpkins alone held 3.1%. 0 contractors won their first obligations in this market during the latest 12 months.
Related markets
NAICS 621111 across all agencies
VA · NAICS 621111
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$102.6MDHS · NAICS 621111
$36.8MDOJ · NAICS 621111
$5.4MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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