Barry Maurice Chauser, MD
NPI 1902897515ActiveIndividual· Radiology, Radiation Oncology· San Francisco, CA
Radiology, Radiation Oncology (MD) in San Francisco, California, trained at University of Pittsburgh School of Medicine (class of 1964). In 2024 Medicare paid $26,739 for 47 patients, and Part D covered 52 of their prescriptions, 85% of them generic. Coherus Oncology, Inc. was the largest of 2 companies reporting payments in 2025, $66.56 in all, mostly food and beverage.
Overview
| NPI | 1902897515 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 2, 2005 |
| Last updated in NPPES | Dec 9, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | G12439 | 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 - Radiation Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 47 |
|---|---|
| Services billed | 324 across 22 procedure codes |
| Paid by Medicare | $26,739 |
Part D prescriptions in 2024
| Prescriptions (claims) | 52 · 128 30-day fills |
|---|---|
| Total drug cost | $1,614 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Pittsburgh School of Medicine |
|---|---|
| Graduation year | 1964 |
| Medicare specialty | Radiation Oncology |
Medical group
- Northern California Radiation Therapists and Oncologists Medical GroupSan Francisco, CA · 8 clinicians
Hospital affiliations
- Ahmc Seton Medical CenterDaly City, CA
- UCSF Health St. Mary's HospitalSan Francisco, CA
Industry payments (Open Payments)
- 2025$66.56 · 2 payments from 2 companies
- 2024$72.64 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Coherus Oncology, Inc. | $36.70 | 1 |
| Janssen Biotech, Inc. | $29.86 | 1 |
What the 2025 payments were for
- Food and Beverage$66.56 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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