William A. Liss, MD
NPI 1740368828ActiveIndividual· Dermatology· Pleasanton, CA
Dermatology (MD) in Pleasanton, California, trained at Ohio State University College of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $700,082 for 728 claims, against $92,238 paid for services in 2024. Galderma Laboratories, L.P. was the largest of 9 companies reporting payments in 2025, $1,206 in all, mostly food and beverage.
Overview
| NPI | 1740368828 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 2, 2006 |
| Last updated in NPPES | May 10, 2024 |
| Certified by provider | May 10, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | G74006 | 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 | 469 |
|---|---|
| Services billed | 2,384 across 42 procedure codes |
| Paid by Medicare | $92,238 |
Part D prescriptions in 2024
| Prescriptions (claims) | 728 · 861 30-day fills |
|---|---|
| Patients | 231 |
| Total drug cost | $700,082 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Ohio State University College of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Dermatology |
Medical group
- Csi Medical GroupFullerton, CA · 111 clinicians
Hospital affiliation
- Community Hospital of the Monterey PeninsulaMonterey, CA
Industry payments (Open Payments)
- 2025$1,206 · 39 payments from 9 companies
- 2024$983.12 · 16 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Galderma Laboratories, L.P. | $304.55 | 5 |
| Abbvie Inc. | $218.14 | 11 |
| Arcutis Biotherapeutics, Inc. | $210.04 | 7 |
| Incyte Corporation | $195.69 | 5 |
| E.R. Squibb & Sons, L.L.C. | $107.24 | 5 |
What the 2025 payments were for
- Food and Beverage$1,206 · 39 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other dermatologists in Pleasanton
- 1083643084
- 1255340311
- 1265852180
- 1336382662
- 1629058441
- 1790826394
- 1992852131
- 1023463288
- 1831325679
- 1891873998
- 1972893204
- 1154734846
All 19 dermatologists in Pleasanton · All dermatologists in California