Joanna Chan, M.D.
NPI 1588714430ActiveIndividual· Dermatology, MOHS-Micrographic Surgery· Long Beach, CA
Dermatology, MOHS-Micrographic Surgery (M.D.) in Long Beach, California, trained at Stanford University School of Medicine (class of 2006). 599 Medicare patients in 2024, $4,671,277 paid; nearly all of their 978 Part D prescriptions were generic (97%). Abbvie Inc. was the largest of 20 companies reporting payments in 2025, $2,332 in all, mostly food and beverage.
Overview
| NPI | 1588714430 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 11, 2007 |
| Last updated in NPPES | Feb 9, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology, MOHS-Micrographic Surgery Primary | 207ND0101X | A110959 | CA |
| Dermatology, MOHS-Micrographic Surgery | 207ND0101X | N1579 | TX |
| Dermatology, Procedural Dermatology | 207NS0135X | A110959 | 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 | 599 |
|---|---|
| Services billed | 8,452 across 111 procedure codes |
| Paid by Medicare | $4,671,277 |
Part D prescriptions in 2024
| Prescriptions (claims) | 978 · 1,032 30-day fills |
|---|---|
| Patients | 417 |
| Total drug cost | $107,597 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Dermatology |
| Secondary specialties | Micrographic Dermatologic Surgery (Mds) |
Medical group
- Huntington Dermatology Medical Group IncPasadena, CA · 5 clinicians
Other facilities
- Pasadena Home Health CareHome health agency · Pasadena, CA
Industry payments (Open Payments)
- 2025$2,332 · 73 payments from 20 companies
- 2024$5,101 · 114 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $308.72 | 18 |
| Almirall LLC | $307.23 | 3 |
| Regeneron Healthcare Solutions, Inc. | $298.94 | 9 |
| Genzyme Corporation | $158.57 | 4 |
| Organon LLC | $157.43 | 2 |
What the 2025 payments were for
- Food and Beverage$2,260 · 72 payments
- Education$72.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Dermatology, MOHS-Micrographic Surgery providers in Long Beach
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