Andrew J. Gross, M.D.
NPI 1174555981ActiveIndividual· Internal Medicine, Rheumatology· San Francisco, CA
Internal Medicine, Rheumatology (M.D.) in San Francisco, California, trained at Tufts University School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $2,862,443 for 1,756 claims, against $83,209 paid for services in 2024. Janssen Biotech, Inc. was the largest of 3 companies reporting payments in 2025, $156.23 in all, mostly food and beverage.
Overview
| NPI | 1174555981 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 6, 2006 |
| Last updated in NPPES | Dec 27, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | A81793 | CA |
| Internal Medicine | 207R00000X | A81793 | 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 - Rheumatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 267 |
|---|---|
| Services billed | 3,572 across 52 procedure codes |
| Paid by Medicare | $83,209 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,756 · 2,979 30-day fills |
|---|---|
| Patients | 251 |
| Total drug cost | $2,862,443 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Rheumatology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- University of California San FranciscoSan Francisco, CA · 1,839 clinicians
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
- Regents of the University of CaliforniaSan Francisco, CA · 732 clinicians
Hospital affiliations
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
- Marinhealth Medical CenterGreenbrae, CA
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$156.23 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $75.00 | 1 |
| Glaxosmithkline, LLC. | $66.78 | 3 |
| Amgen Inc. | $14.45 | 1 |
What the 2025 payments were for
- Food and Beverage$81.23 · 4 payments
- Education$75.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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