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John R. Fontanilla, M.D.

NPI 1669688412ActiveIndividual· Internal Medicine, Nephrology· Philadelphia, PA

Internal Medicine, Nephrology (M.D.) in Philadelphia, Pennsylvania, trained at Rutgers New Jersey Medical School (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $251,761 for 775 claims, against $85,509 paid for services in 2024. Novo Nordisk Inc was the largest of 13 companies reporting payments in 2025, $884.47 in all, mostly food and beverage.

Overview

NPI1669688412
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorYes
NPI issuedMay 15, 2007
Last updated in NPPESJul 27, 2012

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Nephrology Primary207RN0300XMD445193PA
Internal Medicine207R00000XMT188798PA

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)Enrolled Practitioner - Nephrology (PA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients255
Services billed765 across 17 procedure codes
Paid by Medicare$85,509

Part D prescriptions in 2024

Prescriptions (claims)775 · 1,647 30-day fills
Patients128
Total drug cost$251,761
Generic share77% of claims

Medicare sources and data years

Education and affiliations

Medical schoolRutgers New Jersey Medical School
Graduation year2006
Medicare specialtyNephrology

Medical groups

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$884.47 · 28 payments from 13 companies
  • 2024$657.42 · 18 payments from 12 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$884.47 · 28 payments

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

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