John Hosei Yim, MD
NPI 1598731820ActiveIndividual· Surgery· Duarte, CA
Surgery (MD) in Duarte, California, trained at Stanford University School of Medicine (class of 1992). In 2024 Medicare paid $131,107 for 484 patients, and Part D covered 353 of their prescriptions, 71% of them generic. Corcept Therapeutics reported $3,864 in payments in 2025, mostly speaking and faculty fees.
Overview
| NPI | 1598731820 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 27, 2006 |
| Last updated in NPPES | Nov 25, 2020 |
| Certified by provider | Nov 25, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | G88325 | CA |
| Surgery, Surgical Oncology | 2086X0206X | G88325 | 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 - General Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 484 |
|---|---|
| Services billed | 1,499 across 48 procedure codes |
| Paid by Medicare | $131,107 |
Part D prescriptions in 2024
| Prescriptions (claims) | 353 · 792 30-day fills |
|---|---|
| Patients | 94 |
| Total drug cost | $11,149 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | General Surgery |
| Telehealth | Offers telehealth |
Medical group
- City of Hope Medical FoundationDuarte, CA · 982 clinicians
Hospital affiliation
- San Antonio Regional HospitalUpland, CA
Industry payments (Open Payments)
- 2025$3,864 · 7 payments from 1 company
- 2024$4,529 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $3,864 | 7 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$3,275 · 1 payment
- Travel and Lodging$416.03 · 1 payment
- Food and Beverage$173.00 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other general surgeons in Duarte
- 1114029188
- 1144452186
- 1174009062
- 1558534370
- 1689655797
- 1972828366
- 1326542291
- 1700104403
- 1710361092
- 1730129834
- 1013404375
- 1164985131
All 20 general surgeons in Duarte · All general surgeons in California