Phat Co Nguyen, D.O.
NPI 1881636777ActiveIndividual· Internal Medicine· Manchester, NH
Internal Medicine (D.O.) in Manchester, New Hampshire, trained at At Still University of Health Sciences, College of Osteo Med, Kirksville (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $446,274 for 5,479 claims, against $21,359 paid for services in 2024.
Overview
| NPI | 1881636777 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jun 12, 2006 |
| Last updated in NPPES | Jul 20, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 10829 | NH |
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 (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 243 |
|---|---|
| Services billed | 368 across 10 procedure codes |
| Paid by Medicare | $21,359 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,479 · 14,189 30-day fills |
|---|---|
| Patients | 525 |
| Total drug cost | $446,274 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | At Still University of Health Sciences, College of Osteo Med, Kirksville |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Internal Medicine |
Medical group
- Weeks Medical CenterLancaster, NH · 75 clinicians
Hospital affiliations
- Mary Hitchcock Memorial HospitalLebanon, NH
- Weeks Medical CenterLancaster, NH
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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All 116 internal medicine physicians in Manchester · All internal medicine physicians in New Hampshire