Vince Hyun Ha, MD
NPI 1568587061ActiveIndividual· Internal Medicine, Nephrology· Corona, CA
Internal Medicine, Nephrology (MD) with Nephrology Associates Medical Group Inc, practicing in Corona, California. Their prescriptions cost Medicare Part D more than their services did: $899,819 for 2,931 claims, against $157,622 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 17 companies reporting payments in 2025, $1,245 in all, mostly food and beverage. Lists Corona Regional Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1568587061 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 21, 2007 |
| Last updated in NPPES | Feb 7, 2022 |
| Certified by provider | Feb 7, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A93908 | CA |
| Internal Medicine | 207R00000X | A93908 | 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 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); Practitioner - Nephrology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 364 |
|---|---|
| Services billed | 1,809 across 25 procedure codes |
| Paid by Medicare | $157,622 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,931 · 5,845 30-day fills |
|---|---|
| Patients | 348 |
| Total drug cost | $899,819 |
| Generic share | 70% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Nephrology Associates Medical Group IncTemecula, CA · 64 clinicians
Hospital affiliations
- Corona Regional Medical CenterCorona, CA
- Parkview Community Hospital Medical CenterRiverside, CA
- Riverside Community HospitalRiverside, CA
- San Antonio Regional HospitalUpland, CA
Other facilities
- Davita Circle City DialysisDialysis facility · Corona, CA
- Davita Corona Dialysis CenterDialysis facility · Corona, CA
- Davita Jurupa Valley DialysisDialysis facility · Jurupa Valley, CA
- Davita Riverside Mission Home TrainingDialysis facility · Riverside, CA
Industry payments (Open Payments)
- 2025$1,245 · 62 payments from 17 companies
- 2024$1,512 · 65 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $302.22 | 21 |
| Akebia Therapeutics Inc | $213.01 | 8 |
| Calliditas Therapeutics US Inc. | $151.29 | 5 |
| Ani Pharmaceuticals, Inc. | $94.55 | 5 |
| Novartis Pharmaceuticals Corporation | $68.53 | 3 |
What the 2025 payments were for
- Food and Beverage$1,245 · 62 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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