Thomas Allen Leach, M.D.
NPI 1114089141ActiveIndividual· Specialist· Princeton, NJ
Specialist (M.D.) in Princeton, New Jersey, trained at Rutgers New Jersey Medical School (class of 1985). 191 Medicare patients in 2024, $126,184 paid; nearly all of their 167 Part D prescriptions were generic (98%). Solventum Corporation was the largest of 2 companies reporting payments in 2025, $183.91 in all, mostly food and beverage.
Overview
| NPI | 1114089141 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Dec 15, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | MA049086 | NJ |
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 - Plastic and Reconstructive Surgery (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 191 |
|---|---|
| Services billed | 497 across 62 procedure codes |
| Paid by Medicare | $126,184 |
Part D prescriptions in 2024
| Prescriptions (claims) | 167 · 167 30-day fills |
|---|---|
| Patients | 99 |
| Total drug cost | $2,015 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Rutgers New Jersey Medical School |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Plastic And Reconstructive Surgery |
Hospital affiliation
- University Medical Center of Princeton at PlainsboroPlainsboro, NJ
Industry payments (Open Payments)
- 2025$183.91 · 2 payments from 2 companies
- 2024$595.15 · 10 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Solventum Corporation | $156.48 | 1 |
| Motiva USA, LLC | $27.43 | 1 |
What the 2025 payments were for
- Food and Beverage$183.91 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 40 Specialist providers in Princeton · All Specialist providers in New Jersey