Thomas Xu, M.D.
NPI 1972881050ActiveIndividual· Internal Medicine· Wilton, CT
Internal Medicine (M.D.) in Wilton, Connecticut, trained at New York Medical College (class of 2011). 154 Medicare patients in 2024, $42,553 paid; nearly all of their 1,274 Part D prescriptions were generic (92%).
Overview
| NPI | 1972881050 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 24, 2011 |
| Last updated in NPPES | Feb 22, 2021 |
| Certified by provider | Feb 22, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 053419 | CT |
| Internal Medicine | 207R00000X | 275273 | 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 (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 154 |
|---|---|
| Services billed | 694 across 20 procedure codes |
| Paid by Medicare | $42,553 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,274 · 3,112 30-day fills |
|---|---|
| Patients | 178 |
| Total drug cost | $61,191 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Stamford Health Medical Group IncStamford, CT · 444 clinicians
Hospital affiliation
- Stamford HospitalStamford, CT
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 27 internal medicine physicians in Wilton · All internal medicine physicians in Connecticut