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Lenard Harry Hammer, M.D.

NPI 1306874383ActiveIndividual· Ophthalmology· Columbia, MD

Ophthalmology (M.D.) in Columbia, Maryland, trained at Icahn School of Medicine at Mount Sinai (class of 1981). In 2024 Medicare paid $322,492 for 1,747 patients, and Part D covered 1,832 of their prescriptions, 66% of them generic. Alcon Vision LLC was the largest of 3 companies reporting payments in 2025, $121.03 in all, mostly food and beverage.

Overview

NPI1306874383
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 29, 2006
Last updated in NPPESJul 9, 2007

Specialties and licenses

TaxonomyCodeLicenseState
Ophthalmology Primary207W00000XD33667MD

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Ophthalmology (DC); Practitioner - Ophthalmology (MD)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients1,747
Services billed6,079 across 20 procedure codes
Paid by Medicare$322,492

Part D prescriptions in 2024

Prescriptions (claims)1,832 · 3,974 30-day fills
Patients524
Total drug cost$343,433
Generic share66% of claims

Medicare sources and data years

Education and affiliations

Medical schoolIcahn School of Medicine at Mount Sinai
Graduation year1981
Medicare specialtyOphthalmology

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$121.03 · 4 payments from 3 companies
  • 2024$233.71 · 11 payments from 8 companies

Top paying companies in 2025

CompanyAmountPayments
Alcon Vision LLC$60.492
Abbvie Inc.$31.121
Amgen Inc.$29.421

What the 2025 payments were for

  • Food and Beverage$121.03 · 4 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other ophthalmologists in Columbia

All 27 ophthalmologists in Columbia · All ophthalmologists in Maryland