Nathan Tuan Dinh, PA-C
NPI 1639776503ActiveIndividual· Physician Assistant· Santa Ana, CA
Physician Assistant (PA-C) with Providence Medical Foundation, practicing in Santa Ana, California. Their prescriptions cost Medicare Part D more than their services did: $184,488 for 2,699 claims, against $22,847 paid for services in 2024. Modernatx, Inc. was the largest of 5 companies reporting payments in 2025, $1,496 in all, mostly travel and lodging. Lists Providence St. Joseph Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1639776503 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | Yes |
| NPI issued | Oct 5, 2020 |
| Last updated in NPPES | Oct 18, 2023 |
| Certified by provider | Oct 18, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | — | — |
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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 85 |
|---|---|
| Services billed | 463 across 18 procedure codes |
| Paid by Medicare | $22,847 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,699 · 2,914 30-day fills |
|---|---|
| Patients | 336 |
| Total drug cost | $184,488 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
Hospital affiliations
- Providence St. Joseph HospitalOrange, CA
- Providence St. Jude Medical CenterFullerton, CA
Industry payments (Open Payments)
- 2025$1,496 · 36 payments from 5 companies
- 2024$621.95 · 29 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Modernatx, Inc. | $887.89 | 1 |
| Forte Bio-Pharma LLC | $310.05 | 23 |
| Globus Medical, Inc. | $162.03 | 6 |
| Collegium Pharmaceutical, Inc. | $113.55 | 5 |
| Merck Sharp & Dohme LLC | $22.58 | 1 |
What the 2025 payments were for
- Travel and Lodging$887.89 · 1 payment
- Food and Beverage$608.21 · 35 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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