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Gregory Ian Seltzer, MD

NPI 1194901553ActiveIndividual· Internal Medicine, Gastroenterology· Sicklerville, NJ

Internal Medicine, Gastroenterology (MD) in Sicklerville, New Jersey, trained at Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $1,073,397 for 1,856 claims, against $100,478 paid for services in 2024. Ardelyx, Inc. was the largest of 18 companies reporting payments in 2025, $23,737 in all, mostly speaking and faculty fees.

Overview

NPI1194901553
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJan 16, 2008
Last updated in NPPESNov 18, 2024
Certified by providerNov 18, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Gastroenterology Primary207RG0100X25MA07859000NJ
Internal Medicine207R00000XMD432399PA

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 - Gastroenterology (NJ)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients433
Services billed1,635 across 36 procedure codes
Paid by Medicare$100,478

Part D prescriptions in 2024

Prescriptions (claims)1,856 · 3,067 30-day fills
Patients511
Total drug cost$1,073,397
Generic share76% of claims

Medicare sources and data years

Education and affiliations

Medical schoolRutgers R W Johnson Medical School (Cam/New Bruns/Pisc)
Graduation year2003
Medicare specialtyGastroenterology
Secondary specialtiesInternal Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$23,737 · 129 payments from 18 companies
  • 2024$2,866 · 104 payments from 19 companies

Top paying companies in 2025

What the 2025 payments were for

  • Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$16,304 · 11 payments
  • Food and Beverage$3,673 · 107 payments
  • Travel and Lodging$3,361 · 10 payments
  • Consulting Fee$400.00 · 1 payment

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

Other Internal Medicine, Gastroenterology providers in Sicklerville

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