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Athanasios G. Papastamelos, DO

NPI 1821051277ActiveIndividual· Internal Medicine· Linwood, NJ

Internal Medicine (DO) with 100 Percent Healthcare LLC and 1 other group, practicing in Linwood, New Jersey. Their prescriptions cost Medicare Part D more than their services did: $1,949,589 for 5,693 claims, against $515,711 paid for services in 2024. Abbvie Inc. was the largest of 14 companies reporting payments in 2025, $1,846 in all, mostly food and beverage. Lists Atlanticare Regional Medical Center - City Campus and 3 other hospitals as hospital affiliations.

Overview

NPI1821051277
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorNo
NPI issuedApr 7, 2006
Last updated in NPPESSep 15, 2026
Certified by providerSep 15, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X25MB05436700NJ
Internal Medicine, Infectious Disease207RI0200X25MB05436700NJ

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 - Infectious Disease (NJ)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients816
Services billed6,393 across 21 procedure codes
Paid by Medicare$515,711

Part D prescriptions in 2024

Prescriptions (claims)5,693 · 8,937 30-day fills
Patients856
Total drug cost$1,949,589
Generic share84% of claims

Medicare sources and data years

Education and affiliations

Graduation year1988
Medicare specialtyInfectious Disease
Secondary specialtiesInternal Medicine
TelehealthOffers telehealth

Medical groups

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,846 · 99 payments from 14 companies
  • 2024$1,462 · 61 payments from 14 companies

Top paying companies in 2025

CompanyAmountPayments
Abbvie Inc.$407.7224
Viiv Healthcare Company$375.4818
Gilead Sciences, Inc.$284.9919
Insmed, Inc.$196.9812
Merck Sharp & Dohme LLC$136.089

What the 2025 payments were for

  • Food and Beverage$1,846 · 99 payments

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

Other Internal Medicine providers in Linwood

All Internal Medicine providers in New Jersey →