Gareth M. C. Lema, MD, PHD
Retina Specialist (Ophthalmology) Physician · New York, NY
Gareth M. C. Lema, MD, PHD is a retina specialist (ophthalmology) physician with a practice address in New York, New York, and NPI 1982802476, issued on Jul 5, 2007. Check the license (New York 260449, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Gareth M. C. Lema
- Credential
- MD, PHD
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License number
- 260449 NY
Self-reported in NPPES; status is on the state search - Practice location
- 17 E 102ND St, New York, NY 10029
- Phone
- (212) 241-0939
- Enumerated
- Jul 5, 2007
- Record last updated
- Jun 12, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 03361828 NY
- Medicare enrollment
- Enrolled (PECOS I20110713000438); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Buffalo School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 102 in New York → Look up another NPI →
Also registered at 17 E 102ND St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Maddalena Allegretta, MDRheumatology Physician1902337710
- Katherine AllynInternal Medicine Physician1902435654
- Aviv Alter, MDCardiovascular Disease Physician1548886039
Verify Gareth M. C. Lema in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 260449Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024
378 Medicare Part D claims for 64 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.
Most prescribed
- Latanoprost59 claims
- Brimonidine Tartrate42 claims
- Prednisolone Acetate39 claims
- Dorzolamide Hcl31 claims
- Ilevro31 claims
- Polymyxin B Sul-Trimethoprim28 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $567.72
6 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 1,253 providers of this specialty with any payment received $7,667.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Icahn School OF Medicine AT Mount SinaiNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gareth M. C. Lema among 102 retina specialist (ophthalmology) physician records in New York
Gareth M. C. Lema, MD, PHD is one of 102 retina specialist (ophthalmology) physician records with a practice address in New York. over 99% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 53% newer
- In a Medicare fileYes · over 99% of these records are
- In the CMS Doctors and Clinicians fileYes · 96% of these records are
- Graduated2007 · median 2004 among the 98 with a school on file
- Record last updated2019 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Retina Specialist (Ophthalmology) Physician providers in New York
There are 102 retina specialist (ophthalmology) physician records in New York.
All 102 in New York → Every provider in New York → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Megan Ridley-Lane, M.D.New York, NY 100321619237443
- Trisha Mor, MDNew York, NY 100251770711715
- Gregory Stein, M.D.New York, NY 100231205129962
- Donald D'Amico, MDNew York, NY 100211326022096
- Muhamad Festok, MDNew York, NY 100211356802052
- Mahmood KhanNew York, NY 100211831551795
- Szilard Kiss, MDNew York, NY 100211023076593
- Eleni Konstantinou, MDNew York, NY 100211548798317
Common questions
What is Gareth M. C. Lema, MD, PHD's NPI number?
Gareth M. C. Lema, MD, PHD's National Provider Identifier (NPI) is 1982802476, issued on Jul 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gareth M. C. Lema, MD, PHD located?
The NPPES record lists a practice address at 17 E 102ND St, New York, NY, 10029. Phone: (212) 241-0939. Providers update this record themselves, so call before visiting.
How can I verify Gareth M. C. Lema, MD, PHD's license?
NPPES lists New York license number 260449, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gareth M. C. Lema, MD, PHD prescribe under Medicare Part D?
In 2024, Gareth M. C. Lema, MD, PHD had 378 Medicare Part D claims for 64 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.