Stephanie Chin, PA-C
NPI 1902936115ActiveIndividual· Physician Assistant· Walnut Creek, CA
Physician Assistant (PA-C) with John Muir Physician Network, practicing in Walnut Creek, California. Their prescriptions cost Medicare Part D more than their services did: $1,769,563 for 6,748 claims, against $66,207 paid for services in 2024. Aop Health US, LLC was the largest of 16 companies reporting payments in 2025, $1,516 in all, mostly food and beverage.
Overview
| NPI | 1902936115 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Mar 6, 2007 |
| Last updated in NPPES | Dec 2, 2022 |
| Certified by provider | Dec 2, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA19062 | 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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 376 |
|---|---|
| Services billed | 1,226 across 23 procedure codes |
| Paid by Medicare | $66,207 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,748 · 18,225 30-day fills |
|---|---|
| Patients | 2,467 |
| Total drug cost | $1,769,563 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- John Muir Physician NetworkPleasant Hill, CA · 494 clinicians
Industry payments (Open Payments)
- 2025$1,516 · 33 payments from 16 companies
- 2024$1,414 · 50 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aop Health US, LLC | $812.06 | 1 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $182.78 | 4 |
| Bayer Healthcare Pharmaceuticals Inc. | $80.05 | 4 |
| Amgen Inc. | $67.37 | 4 |
| Edwards Lifesciences Corporation | $61.18 | 3 |
What the 2025 payments were for
- Food and Beverage$1,516 · 33 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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