Melissa Wai-Mun Quan, DO
NPI 1033325816ActiveIndividual· Psychiatry & Neurology, Neurology· Los Angeles, CA
Psychiatry & Neurology, Neurology (DO) in Los Angeles, California, trained at Michigan State University College of Osteopathic Medicine (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $99,405 for 1,159 claims, against $5,344 paid for services in 2024. Abbvie Inc. reported $34.27 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1033325816 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 16, 2007 |
| Last updated in NPPES | Aug 8, 2024 |
| Certified by provider | Aug 8, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 20A15635 | CA |
| Psychiatry & Neurology, Neurology | 2084N0400X | 5101016917 | MI |
| Psychiatry & Neurology, Neurology | 2084N0400X | 2010-00158 | NC |
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 - Neurology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 74 across 15 procedure codes |
| Paid by Medicare | $5,344 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,159 · 2,798 30-day fills |
|---|---|
| Patients | 344 |
| Total drug cost | $99,405 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Neurology |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Industry payments (Open Payments)
- 2025$34.27 · 1 payment from 1 company
- 2024$48.23 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $34.27 | 1 |
What the 2025 payments were for
- Food and Beverage$34.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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