Chibao Nguyen, D.O.
NPI 1528370830ActiveIndividual· Internal Medicine· Covina, CA
Internal Medicine (D.O.) in Covina, California, trained at Arizona College of Osteopathic Medicine Mid Western University (class of 2008). Their prescriptions cost Medicare Part D more than their services did: $38,559 for 254 claims, against $15,953 paid for services in 2024. Pfizer Inc. reported $65.88 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1528370830 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jul 2, 2010 |
| Last updated in NPPES | Jan 4, 2026 |
| Certified by provider | Jan 4, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A11299 | 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 | 74 |
|---|---|
| Services billed | 204 across 7 procedure codes |
| Paid by Medicare | $15,953 |
Part D prescriptions in 2024
| Prescriptions (claims) | 254 · 407 30-day fills |
|---|---|
| Patients | 103 |
| Total drug cost | $38,559 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Arizona College of Osteopathic Medicine Mid Western University |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hospitalist |
Medical groups
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
- Pih Health PhysiciansSanta Fe Springs, CA · 622 clinicians
- The Regents of the University of California-IrvineOrange, CA · 125 clinicians
Hospital affiliations
- Pih Health Good Samaritan HospitalLos Angeles, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2025$65.88 · 3 payments from 1 company
- 2024$137.99 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $65.88 | 3 |
What the 2025 payments were for
- Food and Beverage$65.88 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 40 internal medicine physicians in Covina · All internal medicine physicians in California