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Wonil Park, M.D.

NPI 1588753842ActiveIndividual· Internal Medicine· Ridgefield, NJ

Internal Medicine (M.D.) with Hudson MD Group, practicing in Ridgefield, New Jersey. Their prescriptions cost Medicare Part D more than their services did: $434,032 for 5,305 claims, against $233,298 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 2 companies reporting payments in 2025, $111.92 in all, mostly food and beverage. Lists Englewood Hospital and Medical Center as a hospital affiliation.

Overview

NPI1588753842
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorYes
NPI issuedOct 12, 2006
Last updated in NPPESFeb 23, 2020
Certified by providerFeb 23, 2020

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XMA58515NJ
Internal Medicine, Nephrology207RN0300XMA58515NJ

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 patients271
Services billed10,225 across 52 procedure codes
Paid by Medicare$233,298

Part D prescriptions in 2024

Prescriptions (claims)5,305 · 11,255 30-day fills
Patients449
Total drug cost$434,032
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Graduation year1987
Medicare specialtyInternal Medicine

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$111.92 · 6 payments from 2 companies
  • 2024$125.00 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Novartis Pharmaceuticals Corporation$93.005
Lilly USA, LLC$18.921

What the 2025 payments were for

  • Food and Beverage$111.92 · 6 payments

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

Other Internal Medicine providers in Ridgefield

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