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Allen L. Lempel, MD

NPI 1578672390ActiveIndividual· Internal Medicine· Lakewood, NJ

Internal Medicine (MD) in Lakewood, New Jersey, trained at New York Medical College (class of 1981). Their prescriptions cost Medicare Part D more than their services did: $588,763 for 7,139 claims, against $180,785 paid for services in 2024. Insmed, Inc. was the largest of 4 companies reporting payments in 2025, $92.11 in all, mostly food and beverage.

Overview

NPI1578672390
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 29, 2006
Last updated in NPPESMay 16, 2011

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X46678NJ

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 - Internal Medicine (NJ)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients461
Services billed2,853 across 51 procedure codes
Paid by Medicare$180,785

Part D prescriptions in 2024

Prescriptions (claims)7,139 · 14,413 30-day fills
Patients584
Total drug cost$588,763
Generic share87% of claims

Medicare sources and data years

Education and affiliations

Medical schoolNew York Medical College
Graduation year1981
Medicare specialtyInternal Medicine
Secondary specialtiesGeriatric Medicine

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$92.11 · 5 payments from 4 companies
  • 2024$108.67 · 7 payments from 3 companies

Top paying companies in 2025

CompanyAmountPayments
Insmed, Inc.$33.692
Exact Sciences Corporation$24.431
Novo Nordisk Inc$18.121
Pfizer Inc.$15.871

What the 2025 payments were for

  • Food and Beverage$92.11 · 5 payments

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

Other Internal Medicine providers in Lakewood

All Internal Medicine providers in New Jersey →