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Gary Allen Spiegelman, M.D.

NPI 1306948187ActiveIndividual· Internal Medicine, Gastroenterology· Knoxville, TN

Internal Medicine, Gastroenterology (M.D.) in Knoxville, Tennessee, trained at Miami Medical College (class of 1992). 719 Medicare patients in 2024, $137,735 paid; nearly all of their 1,991 Part D prescriptions were generic (93%). Ardelyx, Inc. reported $17.02 in payments in 2024, mostly food and beverage.

Overview

NPI1306948187
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorYes
NPI issuedSep 2, 2006
Last updated in NPPESNov 7, 2024
Certified by providerNov 7, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Gastroenterology Primary207RG0100XMD023743TN

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 - Gastroenterology (TN)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients719
Services billed1,756 across 44 procedure codes
Paid by Medicare$137,735

Part D prescriptions in 2024

Prescriptions (claims)1,991 · 4,949 30-day fills
Patients627
Total drug cost$141,434
Generic share93% of claims

Medicare sources and data years

Education and affiliations

Medical schoolMiami Medical College
Graduation year1992
Medicare specialtyGastroenterology

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2024$17.02 · 1 payment from 1 company

Top paying companies in 2024

CompanyAmountPayments
Ardelyx, Inc.$17.021

What the 2024 payments were for

  • Food and Beverage$17.02 · 1 payment

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

Other gastroenterologists in Knoxville

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