Yun-Han Huang
NPI 1003442096ActiveIndividual· Internal Medicine, Rheumatology· San Francisco, CA
Internal Medicine, Rheumatology with University of California San Francisco and 1 other group, practicing in San Francisco, California. Their prescriptions cost Medicare Part D more than their services did: $176,659 for 56 claims, against $5,377 paid for services in 2024. Endotronix, Inc. reported $21.97 in payments in 2025, mostly food and beverage. Lists UCSF Medical Center as a hospital affiliation.
Overview
| NPI | 1003442096 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 21, 2020 |
| Last updated in NPPES | Jul 12, 2022 |
| Certified by provider | Jul 12, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | A178471 | CA |
| Internal Medicine | 207R00000X | 285070 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Rheumatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 22 |
|---|---|
| Services billed | 79 across 10 procedure codes |
| Paid by Medicare | $5,377 |
Part D prescriptions in 2024
| Prescriptions (claims) | 56 · 82 30-day fills |
|---|---|
| Patients | 19 |
| Total drug cost | $176,659 |
| Generic share | 48% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Rheumatology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- University of California San FranciscoSan Francisco, CA · 1,839 clinicians
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
Hospital affiliation
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$21.97 · 1 payment from 1 company
- 2024$60.89 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Endotronix, Inc. | $21.97 | 1 |
What the 2025 payments were for
- Food and Beverage$21.97 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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