James D. Mosson, M.D.
NPI 1437135670ActiveIndividual· Internal Medicine· Sonora, CA
Internal Medicine (M.D.) in Sonora, California, trained at University of California, Davis School of Medicine (class of 1972). Their prescriptions cost Medicare Part D more than their services did: $422,950 for 5,003 claims, against $1,778 paid for services in 2024. Boston Scientific Corporation reported $33.28 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1437135670 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 20, 2005 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G25381 | 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 | 81 |
|---|---|
| Services billed | 133 across 29 procedure codes |
| Paid by Medicare | $1,778 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,003 · 11,082 30-day fills |
|---|---|
| Patients | 344 |
| Total drug cost | $422,950 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of California, Davis School of Medicine |
|---|---|
| Graduation year | 1972 |
| Medicare specialty | Internal Medicine |
Medical group
- Mark Twain Health Care DistrictValley Springs, CA · 17 clinicians
Hospital affiliations
- Adventist Health SonoraSonora, CA
- Mark Twain Medical CenterSan Andreas, CA
- St Joseph's Medical Center of StocktonStockton, CA
- Sutter Amador HospitalJackson, CA
Other facilities
- Iron Point Home Health Care IncHome health agency · Folsom, CA
- United Home Care of Northern CaliforniaHome health agency · Jackson, CA
Industry payments (Open Payments)
- 2025$33.28 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $33.28 | 1 |
What the 2025 payments were for
- Food and Beverage$33.28 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 26 internal medicine physicians in Sonora · All internal medicine physicians in California