Cameron Fisher, PA
NPI 1073187936ActiveIndividual· Physician Assistant· Walnut Creek, CA
Physician Assistant (PA) with John Muir Physician Network, practicing in Walnut Creek, California. Their prescriptions cost Medicare Part D more than their services did: $797,633 for 499 claims, against $7,047 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 32 companies reporting payments in 2025, $2,786 in all, mostly food and beverage. Lists John Muir Medical Center - Concord Campus and 1 other hospital as hospital affiliations.
Overview
| NPI | 1073187936 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | May 16, 2021 |
| Last updated in NPPES | Oct 29, 2024 |
| Certified by provider | Oct 29, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA61337 | CA |
| Physician Assistant | 363A00000X | — | — |
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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 70 |
|---|---|
| Services billed | 87 across 8 procedure codes |
| Paid by Medicare | $7,047 |
Part D prescriptions in 2024
| Prescriptions (claims) | 499 · 630 30-day fills |
|---|---|
| Patients | 172 |
| Total drug cost | $797,633 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- John Muir Physician NetworkPleasant Hill, CA · 494 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$2,786 · 121 payments from 32 companies
- 2024$3,837 · 139 payments from 38 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $259.82 | 10 |
| Janssen Biotech, Inc. | $258.16 | 13 |
| Pfizer Inc. | $247.34 | 12 |
| Novartis Pharmaceuticals Corporation | $230.30 | 10 |
| Daiichi Sankyo Inc. | $222.10 | 13 |
What the 2025 payments were for
- Food and Beverage$2,708 · 120 payments
- Education$77.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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