Robert William Weber, MD
NPI 1265505291ActiveIndividual· Internal Medicine, Hematology & Oncology· Daly City, CA
Internal Medicine, Hematology & Oncology (MD) with Dignity Health, practicing in Daly City, California. Their prescriptions cost Medicare Part D more than their services did: $5,730,361 for 1,308 claims, against $144,801 paid for services in 2024. Janssen Biotech, Inc. was the largest of 33 companies reporting payments in 2025, $105,291 in all, mostly speaking and faculty fees. Lists Ahmc Seton Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1265505291 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 16, 2006 |
| Last updated in NPPES | Oct 12, 2026 |
| Certified by provider | Oct 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | G72551 | CA |
| Internal Medicine, Hematology & Oncology | 207RH0003X | G072551 | 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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 432 |
|---|---|
| Services billed | 2,282 across 18 procedure codes |
| Paid by Medicare | $144,801 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,308 · 2,500 30-day fills |
|---|---|
| Patients | 257 |
| Total drug cost | $5,730,361 |
| Generic share | 63% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical group
- Dignity HealthRedding, CA · 86 clinicians
Hospital affiliations
- Ahmc Seton Medical CenterDaly City, CA
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA
- Peninsula Medical CenterBurlingame, CA
- UCSF Health St. Mary's HospitalSan Francisco, CA
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$105,291 · 326 payments from 33 companies
- 2024$39,257 · 254 payments from 35 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $62,905 | 113 |
| Regeneron Healthcare Solutions, Inc. | $34,930 | 50 |
| Janssen Scientific Affairs, LLC | $3,916 | 9 |
| Astrazeneca Pharmaceuticals LP | $580.96 | 24 |
| Celgene Corporation | $464.65 | 27 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$77,771 · 23 payments
- Travel and Lodging$14,835 · 75 payments
- Food and Beverage$6,748 · 222 payments
- Consulting Fee$5,660 · 3 payments
- Education$276.64 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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