Amy Stern Kobalter, M.D.
NPI 1902830623ActiveIndividual· Dermatology· San Rafael, CA
Dermatology (M.D.) in San Rafael, California, trained at University of California, San Diego School of Medicine (class of 1992). 1,154 Medicare patients in 2024, $490,046 paid; nearly all of their 754 Part D prescriptions were generic (96%). Lilly USA, LLC was the largest of 9 companies reporting payments in 2025, $270.52 in all, mostly food and beverage.
Overview
| NPI | 1902830623 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 10, 2006 |
| Last updated in NPPES | Sep 17, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | G78305 | 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 - Dermatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,154 |
|---|---|
| Services billed | 10,447 across 61 procedure codes |
| Paid by Medicare | $490,046 |
Part D prescriptions in 2024
| Prescriptions (claims) | 754 · 839 30-day fills |
|---|---|
| Patients | 369 |
| Total drug cost | $27,859 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Dermatology |
Medical group
- Regents Univ of California UCSFSan Francisco, CA · 283 clinicians
Hospital affiliation
- Marinhealth Medical CenterGreenbrae, CA
Industry payments (Open Payments)
- 2025$270.52 · 11 payments from 9 companies
- 2024$302.92 · 11 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $61.20 | 2 |
| Incyte Corporation | $54.71 | 2 |
| Conmed Corporation | $27.84 | 1 |
| Genzyme Corporation | $27.44 | 1 |
| Regeneron Healthcare Solutions, Inc. | $25.19 | 1 |
What the 2025 payments were for
- Food and Beverage$270.52 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Dermatology providers in San Rafael
- 1720370166
- 1194759720
- 1841433182
- 1952930604
- 1083872618
- 1205910205
- 1952336232
- 1124102116
- 1336465517
- 1063755734
- 1801090519
- 1881049872