Diana Hilbert, M.D.
NPI 1386642551ActiveIndividual· Internal Medicine· San Francisco, CA
Internal Medicine (M.D.) in San Francisco, California, trained at Geisel School of Medicine at Dartmouth (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $626,175 for 4,735 claims, against $169,160 paid for services in 2024. Pfizer Inc. was the largest of 14 companies reporting payments in 2025, $954.17 in all, mostly food and beverage.
Overview
| NPI | 1386642551 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 12, 2005 |
| Last updated in NPPES | Nov 15, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G79073 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 599 |
|---|---|
| Services billed | 2,152 across 36 procedure codes |
| Paid by Medicare | $169,160 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,735 · 10,450 30-day fills |
|---|---|
| Patients | 517 |
| Total drug cost | $626,175 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Geisel School of Medicine at Dartmouth |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Dignity HealthRedding, CA · 86 clinicians
- Mercy Doctors Medical Group, IncSan Francisco, CA · 8 clinicians
Hospital affiliations
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA
- California Pacific Medical Ctr-Davies Campus HospSan Francisco, CA
- Peninsula Medical CenterBurlingame, CA
- UCSF Health St. Mary's HospitalSan Francisco, CA
- UCSF Medical CenterSan Francisco, CA
Other facilities
- Health Link Home Health AgencyHome health agency · San Francisco, CA
- Homeassist Home Health ServicesHome health agency · Daly City, CA
Industry payments (Open Payments)
- 2025$954.17 · 38 payments from 14 companies
- 2024$1,495 · 71 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $174.57 | 8 |
| Viiv Healthcare Company | $146.67 | 5 |
| Merck Sharp & Dohme LLC | $140.46 | 5 |
| Novo Nordisk Inc | $94.88 | 4 |
| Gilead Sciences, Inc. | $92.49 | 3 |
What the 2025 payments were for
- Food and Beverage$954.17 · 38 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 1,457 internal medicine physicians in San Francisco · All internal medicine physicians in California