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Robert S. Glickenberger, MD

NPI 1407966690ActiveIndividual· Internal Medicine, Gastroenterology· Springfield, IL

Internal Medicine, Gastroenterology (MD) in Springfield, Illinois, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $1,747,547 for 2,902 claims, against $83,072 paid for services in 2024. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $2,333 in all, mostly food and beverage.

Overview

NPI1407966690
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 30, 2006
Last updated in NPPESMar 17, 2018

Specialties and licenses

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 (FL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients441
Services billed784 across 22 procedure codes
Paid by Medicare$83,072

Part D prescriptions in 2024

Prescriptions (claims)2,902 · 5,939 30-day fills
Patients751
Total drug cost$1,747,547
Generic share85% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Graduation year1989
Medicare specialtyGastroenterology

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$2,333 · 97 payments from 15 companies
  • 2024$1,855 · 86 payments from 13 companies

Top paying companies in 2025

CompanyAmountPayments
Abbvie Inc.$996.4641
Pfizer Inc.$191.935
Phathom Pharmaceuticals, Inc.$186.4411
Aimmune Therapeutics, Inc.$147.027
Ardelyx, Inc.$141.316

What the 2025 payments were for

  • Food and Beverage$2,333 · 97 payments

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

Other Internal Medicine, Gastroenterology providers in Springfield

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