Lewis Tanenbaum, MD
NPI 1083607808ActiveIndividual· Dermatology· Mill Valley, CA
Dermatology (MD) in Mill Valley, California, licensed in CA, with an NPI issued in August 2005. In 2024 Medicare paid $69,437 for 237 patients, and Part D covered 90 of their prescriptions, 73% of them generic.
Overview
| NPI | 1083607808 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 26, 2005 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | G31735 | 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 | 237 |
|---|---|
| Services billed | 1,801 across 53 procedure codes |
| Paid by Medicare | $69,437 |
Part D prescriptions in 2024
| Prescriptions (claims) | 90 · 94 30-day fills |
|---|---|
| Patients | 51 |
| Total drug cost | $64,151 |
| Generic share | 73% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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