Robert D. Johnson, PA-C
Physician Assistant (PA-C) with Sutter Valley Medical Foundation, practicing in Stockton, California. 414 Medicare patients in 2024, $76,739 paid; all of their 1,075 Part D prescriptions were generic. Lists Adventist Health Lodi Memorial and 2 other hospitals as hospital affiliations. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1578588232 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jul 13, 2006 |
| Last updated in NPPES | May 7, 2023 |
| Certified by provider | May 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA60674 | CA |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in California, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Robert S. Johnson · Dentist | 1128b4 | Oct 18, 2001 | Palm Desert, CA |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| 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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 414 |
|---|---|
| Services billed | 2,412 across 58 procedure codes |
| Paid by Medicare | $76,739 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,075 · 1,110 30-day fills |
|---|---|
| Patients | 290 |
| Total drug cost | $13,689 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Sutter Valley Medical FoundationModesto, CA · 2,500 clinicians
Hospital affiliations
- Adventist Health Lodi MemorialLodi, CA
- Dameron HospitalStockton, CA
- St Joseph's Medical Center of StocktonStockton, CA
Other facilities
- Bellestar Home Health Care, IncHome health agency · Folsom, CA
- Sutter Care at HomeHome health agency · Salida, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 66 physician assistants in Stockton · All physician assistants in California