Freddy Chan, P.A.
NPI 1639289614ActiveIndividual· Physician Assistant· Monterey Park, CA
Physician Assistant (P.A.) with Arthritis and Osteoporosis Medical Center, Inc, practicing in Monterey Park, California. In 2024 Medicare paid $552,406 for 431 patients, and Part D covered 1,585 of their prescriptions, 86% of them generic. Abbvie Inc. was the largest of 4 companies reporting payments in 2025, $739.42 in all, mostly food and beverage.
Overview
| NPI | 1639289614 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A. |
| Sole proprietor | No |
| NPI issued | Aug 30, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA17266 | CA |
| Physician Assistant, Medical | 363AM0700X | PA17266 | CA |
| Physician Assistant, Surgical | 363AS0400X | PA17266 | CA |
| Internal Medicine, Rheumatology | 207RR0500X | PA17266 | CA |
| Orthopaedic Surgery | 207X00000X | PA17266 | 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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 431 |
|---|---|
| Services billed | 27,984 across 68 procedure codes |
| Paid by Medicare | $552,406 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,585 · 2,694 30-day fills |
|---|---|
| Patients | 333 |
| Total drug cost | $514,959 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Arthritis and Osteoporosis Medical Center, IncMonterey Park, CA · 10 clinicians
Industry payments (Open Payments)
- 2025$739.42 · 17 payments from 4 companies
- 2024$2,445 · 116 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $626.23 | 11 |
| Amgen Inc. | $58.73 | 3 |
| Alexion Pharmaceuticals, Inc. | $40.81 | 2 |
| Glaxosmithkline, LLC. | $13.65 | 1 |
What the 2025 payments were for
- Food and Beverage$739.42 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 physician assistants in Monterey Park · All physician assistants in California