Richard Alan Yamamoto, M.D.
NPI 1003859802ActiveIndividual· Dermatology· Torrance, CA
Dermatology (M.D.) with Healthcare Partners Affiliates Medical Group, practicing in Torrance, California. Their prescriptions cost Medicare Part D more than their services did: $402,762 for 1,240 claims, against $41,454 paid for services in 2024. Leo Pharma Inc. reported $80.32 in payments in 2025, mostly food and beverage. Lists Lac/Harbor-Ucla Med Center as a hospital affiliation.
Overview
| NPI | 1003859802 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 13, 2006 |
| Last updated in NPPES | Jan 15, 2026 |
| Certified by provider | Jan 15, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | A48496 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 206 |
|---|---|
| Services billed | 2,390 across 16 procedure codes |
| Paid by Medicare | $41,454 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,240 · 1,584 30-day fills |
|---|---|
| Patients | 461 |
| Total drug cost | $402,762 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Dermatology |
Medical group
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
Hospital affiliation
- Lac/Harbor-Ucla Med CenterTorrance, CA
Industry payments (Open Payments)
- 2025$80.32 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Leo Pharma Inc. | $80.32 | 1 |
What the 2025 payments were for
- Food and Beverage$80.32 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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