Sarah Elizabeth Woon, M.D.
NPI 1629094560ActiveIndividual· Internal Medicine, Nephrology· Concord, CA
Internal Medicine, Nephrology (M.D.) in Concord, California, trained at Wayne State University School of Medicine (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $133,053 for 1,560 claims, against $3,654 paid for services in 2024.
Overview
| NPI | 1629094560 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 14, 2006 |
| Last updated in NPPES | Jan 25, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A98029 | 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 - Nephrology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 18 |
|---|---|
| Services billed | 43 across 9 procedure codes |
| Paid by Medicare | $3,654 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,560 · 4,350 30-day fills |
|---|---|
| Patients | 291 |
| Total drug cost | $133,053 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Nephrology |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Hospital affiliations
- Kaiser Foundation HospitalSan Rafael, CA
- Kaiser Foundation Hospital-Santa RosaSanta Rosa, CA
Other facilities
- Davita San Rafael DialysisDialysis facility · San Rafael, CA
- Fresenius Kidney Care of PetalumaDialysis facility · Petaluma, 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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