John Erskine Welsh, M.D.
NPI 1003990847ActiveIndividual· Physical Medicine & Rehabilitation· Campbell, CA
Opted out of Medicare from January 2026 to January 2028. Physical Medicine & Rehabilitation (M.D.) in Campbell, California, trained at Warren Alpert Medical School of Brown University (class of 1993). 294 Medicare patients in 2024, $219,285 paid; nearly all of their 1,556 Part D prescriptions were generic (99%). Medtronic, Inc. reported $25.83 in payments in 2025, mostly education.
Overview
| NPI | 1003990847 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Oct 25, 2006 |
| Last updated in NPPES | Jul 19, 2022 |
| Certified by provider | Jul 19, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physical Medicine & Rehabilitation Primary | 208100000X | G80415 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Jan 1, 2026 – Jan 1, 2028 |
| Can order and refer | Yes |
| Accepts assignment | Yes (participating) |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Medicare services in 2024
| Medicare patients | 294 |
|---|---|
| Services billed | 1,824 across 23 procedure codes |
| Paid by Medicare | $219,285 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,556 · 1,995 30-day fills |
|---|---|
| Patients | 168 |
| Total drug cost | $60,555 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Warren Alpert Medical School of Brown University |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Physical Medicine And Rehabilitation |
| Telehealth | Offers telehealth |
Industry payments (Open Payments)
- 2025$25.83 · 1 payment from 1 company
- 2024$140.82 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $25.83 | 1 |
What the 2025 payments were for
- Education$25.83 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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