Lucia Flores Yumena, M.D.
NPI 1508927633ActiveIndividual· Internal Medicine, Nephrology· Fremont, CA
Internal Medicine, Nephrology (M.D.) in Fremont, California, licensed in CA, with an NPI issued in December 2006. 196 Medicare patients in 2024, $114,979 paid; nearly all of their 1,567 Part D prescriptions were generic (90%). Lists Washington Hospital as a hospital affiliation.
Overview
| NPI | 1508927633 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Dec 13, 2006 |
| Last updated in NPPES | Jul 7, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A39976 | CA |
| Internal Medicine | 207R00000X | A39976 | 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 | 196 |
|---|---|
| Services billed | 827 across 15 procedure codes |
| Paid by Medicare | $114,979 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,567 · 4,123 30-day fills |
|---|---|
| Patients | 156 |
| Total drug cost | $145,490 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1975 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Nephrology |
Hospital affiliation
- Washington HospitalFremont, CA
Other facilities
- Davita Union City Dialysis CenterDialysis facility · Union City, 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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