Susan Sun, M.D.
NPI 1871685578ActiveIndividual· Internal Medicine· Greenbrae, CA
Internal Medicine (M.D.) in Greenbrae, California, trained at Harvard Medical School (class of 1990). In 2024 Medicare paid $88,129 for 347 patients, and Part D covered 237 of their prescriptions, 80% of them generic.
Overview
| NPI | 1871685578 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 29, 2006 |
| Last updated in NPPES | Oct 22, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G72947 | CA |
| Internal Medicine | 207R00000X | 98399 | NM |
| Hospitalist | 208M00000X | 98399 | NM |
| Hospitalist | 208M00000X | G72947 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 347 |
|---|---|
| Services billed | 1,020 across 9 procedure codes |
| Paid by Medicare | $88,129 |
Part D prescriptions in 2024
| Prescriptions (claims) | 237 · 273 30-day fills |
|---|---|
| Patients | 90 |
| Total drug cost | $20,830 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Internal Medicine |
Medical group
- Galen Inpatient Physicians PCHanford, CA · 1,077 clinicians
Hospital affiliation
- Marinhealth Medical CenterGreenbrae, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Greenbrae
- 1346228707
- 1366493181
- 1619917028
- 1750311494
- 1801027628
- 1912090226
- 1679583579
- 1154516631
- 1306037601
- 1952695207
- 1225031727
- 1023041753
All 33 internal medicine physicians in Greenbrae · All internal medicine physicians in California