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Gastroenterology

Thayer Nasereddin, MD

Works at hospitals in Indianapolis, IN · Mooresville, IN · Shelbyville, IN · Indiana

Summary

Thayer Nasereddin, MD (Gastroenterology) is listed by Medicare at 3 hospitals in Indianapolis, IN, Mooresville, IN and Shelbyville, IN. NPI 1215391701. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Thayer Nasereddin, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

GastroenterologyPrimary specialty
YesAccepts Medicare assignment
10Years since medical school (graduated 2016)
MaleGender (as listed)
Indianapolis Gastroenterology LLCGroup practice

Quick answers

Which hospitals does Thayer Nasereddin work at?
Medicare's official clinician data lists Thayer Nasereddin at 3 hospitals: Franciscan Health Indianapolis, Franciscan Health Mooresville and Major Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Thayer Nasereddin see patients?
Medicare's clinician data lists 1 practice location in Indianapolis, IN. Call before your visit to confirm the address.
What is Thayer Nasereddin's specialty?
Medicare lists Gastroenterology as the primary specialty.
Does Thayer Nasereddin accept Medicare assignment?
Yes. Medicare's clinician data says Thayer Nasereddin accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is Thayer Nasereddin's NPI number?
1215391701. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Thayer Nasereddin works

Medicare's Facility Affiliation Data lists Thayer Nasereddin at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Thayer Nasereddin is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Thayer Nasereddin as a member of this group (CMS data updated 2026-10-02).

  • Indianapolis Gastroenterology LLC18 clinicians in the group

Specialties

Find other Gastroenterology doctors in Indiana →

Other gastroenterologists in Indianapolis

Clinicians with the same Medicare primary specialty in Indianapolis, IN — not a recommendation.

All gastroenterologists in Indianapolis →

Clinician information

CredentialMD
Graduation year2016
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1215391701
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians