Mary Lisa McHam, M.D.
NPI 1922055664ActiveIndividual· Ophthalmology· East Weymouth, MA
Ophthalmology (M.D.) in East Weymouth, Massachusetts, trained at Baylor College of Medicine (class of 1989). In 2024 Medicare paid $628,123 for 2,164 patients, and Part D covered 10,054 of their prescriptions, 74% of them generic. Rxsight Inc reported $144.41 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1922055664 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 28, 2006 |
| Last updated in NPPES | Dec 23, 2021 |
| Certified by provider | Dec 23, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 77904 | MA |
| Ophthalmology, Glaucoma Specialist | 207WX0009X | 77904 | MA |
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 - Ophthalmology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,164 |
|---|---|
| Services billed | 6,725 across 37 procedure codes |
| Paid by Medicare | $628,123 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,054 · 22,719 30-day fills |
|---|---|
| Patients | 1,941 |
| Total drug cost | $712,387 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | Baylor College of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Ophthalmology |
Medical group
- Ophthalmic Consultants of Boston IncBoston, MA · 68 clinicians
Hospital affiliation
- South Shore HospitalSouth Weymouth, MA
Industry payments (Open Payments)
- 2025$144.41 · 1 payment from 1 company
- 2024$20.29 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Rxsight Inc | $144.41 | 1 |
What the 2025 payments were for
- Food and Beverage$144.41 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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