Sang Hun Han, MD
NPI 1598262370ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Bakersfield, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Bakersfield, California, trained at Wayne State University School of Medicine (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $212,779 for 804 claims, against $424.58 paid for services in 2024. Lilly USA, LLC was the largest of 8 companies reporting payments in 2025, $194.31 in all, mostly food and beverage.
Overview
| NPI | 1598262370 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 9, 2018 |
| Last updated in NPPES | Dec 21, 2023 |
| Certified by provider | Dec 21, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | A173424 | 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 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 - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 42 |
|---|---|
| Services billed | 94 across 3 procedure codes |
| Paid by Medicare | $424.58 |
Part D prescriptions in 2024
| Prescriptions (claims) | 804 · 1,295 30-day fills |
|---|---|
| Patients | 144 |
| Total drug cost | $212,779 |
| Generic share | 41% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Endocrinology |
Medical group
- Clinica Sierra VistaBakersfield, CA · 178 clinicians
Hospital affiliation
- Adventist Health BakersfieldBakersfield, CA
Industry payments (Open Payments)
- 2025$194.31 · 10 payments from 8 companies
- 2024$163.81 · 9 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $39.49 | 2 |
| Novo Nordisk Inc | $36.39 | 2 |
| Hologic Sales and Service, LLC | $23.90 | 1 |
| Ascendis Pharma Endocrinology Inc | $23.48 | 1 |
| Abbott Laboratories | $20.36 | 1 |
What the 2025 payments were for
- Food and Beverage$194.31 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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