Xuan Huy Phan, M.D.
NPI 1578941126ActiveIndividual· Internal Medicine· Silver Creek, NY
Internal Medicine (M.D.) with Great Lakes Physician Practice PC, practicing in Silver Creek, New York. Their prescriptions cost Medicare Part D more than their services did: $874,613 for 7,465 claims, against $60,345 paid for services in 2024. Neurocrine Biosciences, Inc. reported $128.43 in payments in 2025, mostly food and beverage. Lists Brooks-Tlc Hospital System, Inc and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1578941126 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 15, 2015 |
| Last updated in NPPES | Sep 21, 2026 |
| Certified by provider | Mar 9, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 295583 | NY |
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 (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 249 |
|---|---|
| Services billed | 973 across 54 procedure codes |
| Paid by Medicare | $60,345 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,465 · 14,116 30-day fills |
|---|---|
| Patients | 627 |
| Total drug cost | $874,613 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Great Lakes Physician Practice PCDunkirk, NY · 144 clinicians
Hospital affiliations
- Brooks-Tlc Hospital System, IncDunkirk, NY
- Upmc Chautauqua at WcaJamestown, NY
- Westfield Memorial Hospital, IncWestfield, NY
Other facilities
- Vna of Western Ny ChhaHome health agency · Cheektowaga, NY
- Chautauqua Hospice and Palliative CareHospice · Lakewood, NY
Industry payments (Open Payments)
- 2025$128.43 · 1 payment from 1 company
- 2024$109.22 · 6 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Neurocrine Biosciences, Inc. | $128.43 | 1 |
What the 2025 payments were for
- Food and Beverage$128.43 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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