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John G. Larsen, MD

NPI 1700974169ActiveIndividual· Pediatrics, Pediatric Infectious Diseases· New York City, NY

Pediatrics, Pediatric Infectious Diseases (MD) in New York City, New York, licensed in NY, with an NPI issued in October 2006. Part D covered 25 prescriptions written in 2024, 96% of them generic. Glaxosmithkline, LLC. was the largest of 10 companies reporting payments in 2025, $255.05 in all, mostly food and beverage.

Overview

NPI1700974169
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedOct 11, 2006
Last updated in NPPESSep 11, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Pediatrics, Pediatric Infectious Diseases Primary2080P0208X129356NY
Pediatrics208000000X129356NY

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

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

Medicare

Enrollment (PECOS)Not in the public enrollment file of Oct 1, 2026

Part D prescriptions in 2024

Prescriptions (claims)25 · 51 30-day fills
Total drug cost$973.66
Generic share96% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$255.05 · 13 payments from 10 companies
  • 2024$275.86 · 13 payments from 6 companies

Top paying companies in 2025

CompanyAmountPayments
Glaxosmithkline, LLC.$49.443
Azurity Pharmaceuticals, Inc.$47.502
Hologic Sales and Service, LLC$23.511
Tolmar, Inc.$23.381
Sanofi-Aventis U.S. LLC$22.981

What the 2025 payments were for

  • Food and Beverage$255.05 · 13 payments

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

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