James Y. Greenberg, MD
NPI 1497859433ActiveIndividual· Internal Medicine· San Francisco, CA
Internal Medicine (MD) in San Francisco, California, licensed in CA, with an NPI issued in September 2006. Their prescriptions cost Medicare Part D more than their services did: $3,837,710 for 31,329 claims, against $467,765 paid for services in 2024. Abbvie Inc. was the largest of 23 companies reporting payments in 2025, $4,767 in all, mostly food and beverage. Lists California Pacific Medical Center- Van Ness Campus and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1497859433 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 11, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A55519 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 651 |
|---|---|
| Services billed | 7,045 across 34 procedure codes |
| Paid by Medicare | $467,765 |
Part D prescriptions in 2024
| Prescriptions (claims) | 31,329 · 46,456 30-day fills |
|---|---|
| Patients | 970 |
| Total drug cost | $3,837,710 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 1981 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- 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
Other facilities
- Allegro Home Health, IncHome health agency · Larkspur, CA
- American CarequestHome health agency · Burlingame, CA
- Healthflex Home Health ServicesHome health agency · Oakland, CA
- South Bay Home Health Care, LLCHome health agency · San Jose, CA
- Truemed, IncHome health agency · South San Francisco, CA
Industry payments (Open Payments)
- 2025$4,767 · 152 payments from 23 companies
- 2024$4,377 · 186 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $1,005 | 33 |
| Novo Nordisk Inc | $762.74 | 21 |
| Lilly USA, LLC | $507.34 | 14 |
| Pfizer Inc. | $465.61 | 16 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $384.15 | 11 |
What the 2025 payments were for
- Food and Beverage$4,767 · 152 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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