Federal contractor profile
UEI XHA3UCLZF9M7CAGE 6YFK5
KOLPACOFF STEPHEN MD is associated with UEI XHA3UCLZF9M7 and CAGE 6YFK5 in public federal records. AcornBids currently links 7 prime awards totaling $4.4M in obligations to this entity. Its largest recorded federal customer by obligations is Department of Veterans Affairs. Its recorded federal awards include work classified as All Other Outpatient Care Centers. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 621111 (Offices of Physicians (except Mental Health Specialists)). Its public SAM.gov registration lists YREKA, CA, USA.
Detailed agency totals are not available in this stored profile.
Largest positive coded-agency total ÷ all positive coded-agency totals × 100
Missing data is shown as unavailable.
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Sep 28, 2026. Refresh pending; these totals may be out of date.
Public SAM.gov registration details.
Net transaction obligations by federal fiscal period.
Transaction history is not available in the loaded data. Annual funding is not estimated from current award totals.
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| 36C26126N0336INTERIM TASK ORDER FOR YREKA CBOC | Department of Veterans Affairs | $729.7K | Mar 1, 2026 | Aug 31, 2026 |
| 36C26126D0020INTERIM CONTRACT OF YREKA CBOC SERVICES | Department of Veterans Affairs | $2.0M | Mar 1, 2026 | Not available |
| 36C26126N0567INTERIM CONTRACT OF YREKA CBOC SERVICES | Department of Veterans Affairs | $686.8K | Sep 1, 2026 | Feb 28, 2027 |
| 36C26125N0088TO FOR ORDERING PERIOD 5 | Department of Veterans Affairs | $1.1M | Oct 1, 2024 | Aug 31, 2025 |
| 36C26120D0095COMMUNITY BASED OUTPATIENT CLINIC (CBOC) | Department of Veterans Affairs | $10.0M | Sep 1, 2020 | Not available |
| 36C26125N0533MOD TO UPDATE WAGE DETERMINATION, COMMUNITY BASED OUTPATIENT CLINIC (CBOC) | Department of Veterans Affairs | $633.6K | Sep 1, 2025 | Feb 28, 2026 |
| 36C26124N0122MOD TO UPDATE WAGE DETERMINATION, COMMUNITY BASED OUTPATIENT CLINIC (CBOC) | Department of Veterans Affairs | $1.2M | Oct 1, 2023 | Sep 30, 2024 |
Modeled recompete windows are estimates, not announced solicitations or guarantees.
| Registration evidence | Date |
|---|---|
| SAM updated | Dec 15, 2025 |
| Source loaded | Sep 26, 2026 |
| Initial registration | Jun 27, 2013 |
| Entity start | Aug 29, 1989 |
Registration classifications: Self Certified Small Disadvantaged Business, Small Business. These are separate from the reported certificates above.
| Industry | Reported size status |
|---|---|
| 621111 — Offices of Physicians (except Mental Health Specialists) | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| STEPHEN KOLPACOFF | Government business | Contact method not published | SAM registration | Not available |
| STEPHEN KOLPACOFF | Electronic business | Contact method not published | SAM registration | Not available |
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
Explore the customer, work and award-size evidence behind each match.
Recorded award industries: 621498 — All Other Outpatient Care Centers.
Recorded products and services: Q201 — MEDICAL- MANAGED HEALTHCARE.
Examples from recent award records:
These records describe federal award work, not every company capability. Review the award evidence.
105 E OBERLIN RD, YREKA, California 96097, United States
Registered location from SAM.gov; award performance locations may differ.
621111 — Offices of Physicians (except Mental Health Specialists).
Primary SAM.gov NAICS classification.
Department of Veterans Affairs.
Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.
No official subaward rows are loaded, so Acorn does not claim known teaming relationships.
Save this company, track changes, and evaluate upcoming work against your targets.
Save to my research Find my fit