James Horodyski, M.D.
NPI 1184710063ActiveIndividual· Internal Medicine· Fairfield, CA
Internal Medicine (M.D.) with Quantum Healthcare Medical Associates Inc, practicing in Fairfield, California. Mostly services rather than prescriptions: Medicare paid $58,535 for 376 patients in 2024, with only 11 Part D claims. Lists Sutter Solano Medical Center as a hospital affiliation.
Overview
| NPI | 1184710063 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Oct 5, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A68731 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 376 |
|---|---|
| Services billed | 454 across 7 procedure codes |
| Paid by Medicare | $58,535 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11 · 13 30-day fills |
|---|---|
| Total drug cost | $1,663 |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Quantum Healthcare Medical Associates IncHilo, HI · 109 clinicians
Hospital affiliation
- Sutter Solano Medical CenterVallejo, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Fairfield
- 1134180219
- 1164097804
- 1275191249
- 1427079169
- 1477522480
- 1548722580
- 1619990637
- 1821418302
- 1851715627
- 1962471961
- 1982646154
- 1003899279
All 65 internal medicine physicians in Fairfield · All internal medicine physicians in California