Choon-Weng Chan, M.D.
NPI 1528088937ActiveIndividual· Internal Medicine· Elk Grove, CA
Internal Medicine (M.D.) with Dignity Health Medical Foundation, practicing in Elk Grove, California. Their prescriptions cost Medicare Part D more than their services did: $1,086,898 for 10,947 claims, against $174,319 paid for services in 2024. Lists Mercy General Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1528088937 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 20, 2006 |
| Last updated in NPPES | Jul 10, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | C129586 | CA |
| Internal Medicine | 207R00000X | 227845 | MA |
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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 432 |
|---|---|
| Services billed | 2,265 across 39 procedure codes |
| Paid by Medicare | $174,319 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,947 · 24,028 30-day fills |
|---|---|
| Patients | 666 |
| Total drug cost | $1,086,898 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Dignity Health Medical FoundationFolsom, CA · 1,184 clinicians
Hospital affiliations
- Mercy General HospitalSacramento, CA
- Methodist Hospital of SacramentoSacramento, CA
- Sutter Medical Center, SacramentoSacramento, CA
Other facilities
- A1 Home HealthHome health agency · Fair Oaks, CA
- American River Home CareHome health agency · Sacramento, CA
- Mercy Home HealthHome health agency · Rancho Cordova, CA
- Sonder Home Health CareHome health agency · Sacramento, CA
- Sutter Care at HomeHome health agency · Sacramento, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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