Phoebe Yi-Hsi Chen, M.D.
NPI 1528163870ActiveIndividual· Internal Medicine· San Luis Obispo, CA
Internal Medicine (M.D.) in San Luis Obispo, California, trained at Temple University School of Medicine (class of 1999). 680 Medicare patients in 2024, $134,332 paid; nearly all of their 2,546 Part D prescriptions were generic (90%). Exact Sciences Corporation was the largest of 4 companies reporting payments in 2025, $70.45 in all, mostly food and beverage.
Overview
| NPI | 1528163870 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 13, 2006 |
| Last updated in NPPES | Mar 30, 2023 |
| Certified by provider | Mar 30, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A75086 | 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 | 680 |
|---|---|
| Services billed | 1,990 across 58 procedure codes |
| Paid by Medicare | $134,332 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,546 · 6,349 30-day fills |
|---|---|
| Patients | 418 |
| Total drug cost | $177,646 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Temple University School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- The Regents of the University of CaliforniaSanta Monica, CA · 1,462 clinicians
Hospital affiliations
- French Hospital Medical CenterSan Luis Obispo, CA
- Marian Regional Medical CenterSanta Maria, CA
- Ronald Reagan UCLA Medical CenterLos Angeles, CA
Other facilities
- Central Coast Home Health IncHome health agency · San Luis Obispo, CA
- Dignity Health Home HealthHome health agency · Santa Maria, CA
Industry payments (Open Payments)
- 2025$70.45 · 4 payments from 4 companies
- 2024$93.66 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $20.81 | 1 |
| Pfizer Inc. | $19.78 | 1 |
| Lilly USA, LLC | $15.46 | 1 |
| Tandem Diabetes Care, Inc. | $14.40 | 1 |
What the 2025 payments were for
- Food and Beverage$70.45 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 52 internal medicine physicians in San Luis Obispo · All internal medicine physicians in California