Won Seok Cha
NPI 1174903140ActiveIndividual· Family Medicine· Citrus Heights, CA
Family Medicine in Citrus Heights, California, trained at University of Texas Medical Branch at Galveston (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $72,732 for 1,151 claims, against $23,978 paid for services in 2024.
Overview
| NPI | 1174903140 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Jun 4, 2015 |
| Last updated in NPPES | Oct 15, 2024 |
| Certified by provider | Aug 16, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | C186753 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (CA); Practitioner - Family Practice (OR); Practitioner - Family Practice (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 322 |
|---|---|
| Services billed | 517 across 32 procedure codes |
| Paid by Medicare | $23,978 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,151 · 2,135 30-day fills |
|---|---|
| Patients | 434 |
| Total drug cost | $72,732 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Texas Medical Branch at Galveston |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Family Practice |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Hospital affiliation
- Kaiser Foundation Hospital - DowneyDowney, 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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