What is Gareth Lema's specialty?

Gareth Lema (NPI 1982802476) is a Medicare-billing provider whose primary specialty is Ophthalmology in New York, NY.

Where does Gareth Lema practice?

Gareth Lema practices in New York, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1982802476.

How much does Medicare pay Gareth Lema?

Gareth Lema (NPI 1982802476) received approximately $34K in total Medicare Part B payments, serving 120 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1982802476

Gareth LemaMD, PHD

PRACTICEMOUNT SINAI DEPARTMENT OF ORTHOPAEDIC SURGERYSee all providers at this practice →

OphthalmologyNew York, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

227

Unique beneficiaries

—

Total services

447

Distinct HCPCS

Medicare payment

$21K

Peer benchmark

Total Medicare services vs. 1,438 Ophthalmology providers in NY — bottom quintile (cohort median 1,869).

PRESCRIBING · PART D · 2024

Total Rx claims

316

Beneficiaries

—

Total drug cost

$27K

Distinct drugs

Brand share

38.0%

Top prescribed drugs

Latanoprost59 claims

Brimonidine Tartrate42 claims

Prednisolone Acetate39 claims

Nepafenac31 claims

Dorzolamide Hcl31 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$637

Payment records

By payment type

Food and Beverage$637

Top paying entities

Food and Beverage$637

REFERRAL NETWORK

Where Gareth Lema's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 4 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MERCY HOSPITAL OF BUFFALO	39	109
ERIE COUNTY MEDICAL CENTER CORPORATION	22	111
Sandra Everett Ophthalmology · Cheektowaga, NY	16	57
BERTRAND CHAFFEE HOSPITAL	11	45

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events