Doris Pao-Chin Chen, MD
NPI 1013273283ActiveIndividual· Internal Medicine· Stanford, CA
Internal Medicine (MD) in Stanford, California, trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $41,066 for 436 claims, against $4,888 paid for services in 2024. Cathworks, Inc. reported $228.42 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1013273283 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 2, 2012 |
| Last updated in NPPES | Apr 18, 2024 |
| Certified by provider | Apr 18, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A126815 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 62 |
|---|---|
| Services billed | 64 across 4 procedure codes |
| Paid by Medicare | $4,888 |
Part D prescriptions in 2024
| Prescriptions (claims) | 436 · 993 30-day fills |
|---|---|
| Patients | 189 |
| Total drug cost | $41,066 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$228.42 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Cathworks, Inc. | $228.42 | 1 |
What the 2025 payments were for
- Food and Beverage$228.42 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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