David C. Gorsulowsky, MD
NPI 1649272832ActiveIndividual· Dermatology· Fremont, CA
Dermatology (MD) in Fremont, California, trained at Louisiana State University School of Medicine in New Orleans (class of 1980). 648 Medicare patients in 2024, $759,369 paid; nearly all of their 1,041 Part D prescriptions were generic (93%). Leo Pharma Inc. was the largest of 19 companies reporting payments in 2025, $3,846 in all, mostly food and beverage.
Overview
| NPI | 1649272832 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 1, 2005 |
| Last updated in NPPES | Mar 13, 2024 |
| Certified by provider | Mar 13, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | C42190 | CA |
| Specialist | 174400000X | C042190 | 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 - Dermatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 648 |
|---|---|
| Services billed | 9,898 across 119 procedure codes |
| Paid by Medicare | $759,369 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,041 · 1,371 30-day fills |
|---|---|
| Patients | 345 |
| Total drug cost | $243,877 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 1980 |
| Medicare specialty | Dermatology |
Medical group
- Csi Medical GroupFullerton, CA · 111 clinicians
Hospital affiliation
- Washington HospitalFremont, CA
Industry payments (Open Payments)
- 2025$3,846 · 173 payments from 19 companies
- 2024$4,286 · 207 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Leo Pharma Inc. | $558.50 | 39 |
| Lilly USA, LLC | $528.39 | 24 |
| Janssen Biotech, Inc. | $508.20 | 25 |
| Regeneron Healthcare Solutions, Inc. | $464.62 | 18 |
| Galderma Laboratories, L.P. | $447.33 | 13 |
What the 2025 payments were for
- Food and Beverage$3,771 · 172 payments
- Education$75.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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