John Winston Duggan Jr., M.D., M.S.
NPI 1851313514ActiveIndividual· Specialist· San Jose, CA
Specialist (M.D., M.S.) in San Jose, California, trained at Tufts University School of Medicine (class of 1988). Medicare paid $12,429 for services to 78 patients in 2024.
Overview
| NPI | 1851313514 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., M.S. |
| Sole proprietor | Yes |
| NPI issued | Jul 24, 2006 |
| Last updated in NPPES | Apr 9, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | G683170 | 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 - Ophthalmology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 78 |
|---|---|
| Services billed | 140 across 11 procedure codes |
| Paid by Medicare | $12,429 |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Ophthalmology |
Medical groups
- Desert Ophthalmology Medical CorporationPalm Springs, CA · 5 clinicians
- Desert Elite Eye Group IncPalm Springs, CA · 4 clinicians
Other Specialist providers in San Jose
- 1174516264
- 1205893286
- 1235158254
- 1275626897
- 1427136266
- 1609989417
- 1689762205
- 1699706556
- 1720145147
- 1740339555
- 1851326672
- 1851334403
All 190 Specialist providers in San Jose · All Specialist providers in California