Robert Wing Chan, MD
NPI 1508826488ActiveIndividual· Internal Medicine· Alhambra, CA
Internal Medicine (MD) in Alhambra, California, trained at University of California, Irvine, California College of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $3,142,895 for 26,021 claims, against $461,226 paid for services in 2024. Novo Nordisk Inc was the largest of 5 companies reporting payments in 2025, $369.98 in all, mostly food and beverage.
Overview
| NPI | 1508826488 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 24, 2006 |
| Last updated in NPPES | Nov 3, 2026 |
| Certified by provider | Nov 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A67678 | 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 | 470 |
|---|---|
| Services billed | 8,583 across 49 procedure codes |
| Paid by Medicare | $461,226 |
Part D prescriptions in 2024
| Prescriptions (claims) | 26,021 · 36,643 30-day fills |
|---|---|
| Patients | 868 |
| Total drug cost | $3,142,895 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Other facilities
- Bethany Home Health CareHome health agency · Alhambra, CA
- Hollycare Home Health, IncHome health agency · El Monte, CA
- Holy Cross Hospice, IncHospice · Pasadena, CA
- Royal Vista Care CenterNursing home · San Gabriel, CA
Industry payments (Open Payments)
- 2025$369.98 · 16 payments from 5 companies
- 2024$624.23 · 21 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $244.74 | 11 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $52.80 | 2 |
| Gilead Sciences, Inc. | $26.61 | 1 |
| Lilly USA, LLC | $25.44 | 1 |
| Abbott Laboratories | $20.39 | 1 |
What the 2025 payments were for
- Food and Beverage$369.98 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 66 internal medicine physicians in Alhambra · All internal medicine physicians in California