Mary Lisa Mcham, M.D.
NPI 1922055664 · Ophthalmology Physician · East Weymouth, MA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Lisa Mcham, M.D. is a Ophthalmology Physician provider in East Weymouth, MA (NPI 1922055664).
Provider details
- NPI number
- 1922055664
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 77904 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
6,648 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 1,543 | $140 |
| Imaging of Optic Nerve92133 | 1,192 | $38 |
| Exam of Visual Field With Extended Testing92083 | 1,055 | $71 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 758 | $139 |
| Established Patient Problem Focused Exam of Visual System92012 | 514 | $99 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 447 | $99 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 3,511 | 1,077 |
| Timolol Maleate | 1,751 | 608 |
| Prednisolone Acetate | 1,013 | 627 |
| Brimonidine Tartrate | 839 | 281 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 629 | 219 |
| Dorzolamide Hcl | 487 | 168 |
| Bimatoprostbrand: Lumigan | 188 | 64 |
| Erythromycin Base |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-28
- Last updated
- 2021-12-23
- Certified
- 2021-12-23
Frequently asked questions
- What is Mary Lisa Mcham's NPI number?
- Mary Lisa Mcham's National Provider Identifier (NPI) is 1922055664, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Lisa Mcham's specialty?
- Mary Lisa Mcham is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Lisa Mcham located?
- Mary Lisa Mcham's practice location on file with NPPES is 97 Libbey Industrial Pkwy Ste 100, East Weymouth, MA 02189-3110.
- What is Mary Lisa Mcham's phone number?
- The practice phone number listed in the NPPES registry for Mary Lisa Mcham is (781) 331-3300.
- Does Mary Lisa Mcham accept Medicare?
- Mary Lisa Mcham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Lisa Mcham's NPI active?
- Yes — Mary Lisa Mcham's NPI (1922055664) is active in the NPPES registry as of the last update on 2021-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.