Michael Shane Hamman, MD
NPI 1538346911ActiveIndividual· Dermatology, MOHS-Micrographic Surgery· San Diego, CA
Dermatology, MOHS-Micrographic Surgery (MD) in San Diego, California, trained at University of Washington School of Medicine (class of 2005). 374 Medicare patients in 2024, $408,737 paid; nearly all of their 365 Part D prescriptions were generic (99%). Genzyme Corporation was the largest of 16 companies reporting payments in 2025, $1,132 in all, mostly food and beverage.
Overview
| NPI | 1538346911 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 28, 2008 |
| Last updated in NPPES | Dec 19, 2024 |
| Certified by provider | Dec 19, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology, MOHS-Micrographic Surgery Primary | 207ND0101X | A97551 | CA |
| Dermatology | 207N00000X | A97551 | CA |
| Emergency Medicine | 207P00000X | A97551 | 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 (AZ); Practitioner - Micrographic Dermatologic Surgery (Mds) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 374 |
|---|---|
| Services billed | 1,320 across 77 procedure codes |
| Paid by Medicare | $408,737 |
Part D prescriptions in 2024
| Prescriptions (claims) | 365 · 373 30-day fills |
|---|---|
| Patients | 260 |
| Total drug cost | $57,598 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | University of Washington School of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Micrographic Dermatologic Surgery (Mds) |
| Secondary specialties | Dermatology |
Medical group
- J Robert West MD IncLas Vegas, NV · 138 clinicians
Industry payments (Open Payments)
- 2025$1,132 · 45 payments from 16 companies
- 2024$1,218 · 54 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $199.82 | 5 |
| Incyte Corporation | $189.23 | 7 |
| Abbvie Inc. | $109.96 | 5 |
| Ucb, Inc. | $106.21 | 4 |
| Novartis Pharmaceuticals Corporation | $102.76 | 5 |
What the 2025 payments were for
- Food and Beverage$1,132 · 45 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Dermatology, MOHS-Micrographic Surgery providers in California