Eric Melvin Chwa, M.D
NPI 1962433607ActiveIndividual· Internal Medicine· Arcadia, CA
Internal Medicine (M.D) in Arcadia, California, licensed in CA, with an NPI issued in July 2006. Their prescriptions cost Medicare Part D more than their services did: $309,198 for 5,739 claims, against $115,661 paid for services in 2024. Gilead Sciences, Inc. was the largest of 5 companies reporting payments in 2025, $940.25 in all, mostly food and beverage.
Overview
| NPI | 1962433607 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | Yes |
| NPI issued | Jul 5, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A49506 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 223 |
|---|---|
| Services billed | 1,605 across 28 procedure codes |
| Paid by Medicare | $115,661 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,739 · 14,170 30-day fills |
|---|---|
| Patients | 423 |
| Total drug cost | $309,198 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1981 |
|---|---|
| Medicare specialty | Internal Medicine |
Other facilities
- Arcadia Care CenterNursing home · Arcadia, CA
Industry payments (Open Payments)
- 2025$940.25 · 12 payments from 5 companies
- 2024$612.98 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $524.54 | 5 |
| Boston Scientific Corporation | $157.50 | 1 |
| Medtronic, Inc. | $125.82 | 1 |
| Amgen Inc. | $84.43 | 3 |
| Pfizer Inc. | $47.96 | 2 |
What the 2025 payments were for
- Food and Beverage$940.25 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Arcadia
- 1043219678
- 1043318173
- 1063405892
- 1144228909
- 1164429585
- 1194348805
- 1225142128
- 1235125790
- 1275770885
- 1306108634
- 1306473467
- 1306868617
All 100 internal medicine physicians in Arcadia · All internal medicine physicians in California