William Gregory Gensheimer, M.D.
NPI 1275858656ActiveIndividual· Ophthalmology· Lebanon, NH
Ophthalmology (M.D.) with Dartmouth-Hitchcock Clinic and 1 other group, practicing in Lebanon, New Hampshire. In 2024 Medicare paid $44,630 for 140 patients, and Part D covered 189 of their prescriptions, 31% of them generic. Alcon Vision LLC reported $32.91 in payments in 2025, mostly food and beverage. Lists Alice Peck Day Memorial Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1275858656 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 29, 2010 |
| Last updated in NPPES | Sep 14, 2021 |
| Certified by provider | Sep 13, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 21873 | NH |
| Ophthalmology | 207W00000X | DR.0053423 | CO |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Ophthalmology (NH); Practitioner - Ophthalmology (VT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 140 |
|---|---|
| Services billed | 442 across 26 procedure codes |
| Paid by Medicare | $44,630 |
Part D prescriptions in 2024
| Prescriptions (claims) | 189 · 285 30-day fills |
|---|---|
| Patients | 53 |
| Total drug cost | $24,576 |
| Generic share | 31% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Ophthalmology |
Medical groups
- Dartmouth-Hitchcock ClinicLebanon, NH · 1,472 clinicians
- Mary Hitchcock Memorial HospitalManchester, NH · 1,280 clinicians
Hospital affiliations
- Alice Peck Day Memorial HospitalLebanon, NH
- Mary Hitchcock Memorial HospitalLebanon, NH
- Mt Ascutney HospitalWindsor, VT
Industry payments (Open Payments)
- 2025$32.91 · 1 payment from 1 company
- 2024$21.04 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $32.91 | 1 |
What the 2025 payments were for
- Food and Beverage$32.91 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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