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Endocrinology

Robert R. Geier, DO

Works at hospitals in Knoxville, TN · Athens, TN · Tennessee

Summary

Robert R. Geier, DO (Endocrinology) is listed by Medicare at 4 hospitals in Knoxville, TN and Athens, TN. NPI 1336673102. 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 Robert R. Geier, 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

EndocrinologyPrimary specialty
YesAccepts Medicare assignment
4Years since medical school (graduated 2022)
University Of Kentucky College Of MedicineMedical school
MaleGender (as listed)
Endocrinology Consultants of East TNGroup practice

Quick answers

Which hospitals does Robert R. Geier work at?
Medicare's official clinician data lists Robert R. Geier at 4 hospitals: Fort Sanders Regional Medical Center, Parkwest Medical Center, Starr Regional Medical Center Athens and University Health System, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Robert R. Geier see patients?
Medicare's clinician data lists 1 practice location in Knoxville, TN. Call before your visit to confirm the address.
What is Robert R. Geier's specialty?
Medicare lists Endocrinology as the primary specialty.
Does Robert R. Geier accept Medicare assignment?
Yes. Medicare's clinician data says Robert R. Geier 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 the phone number for Robert R. Geier?
(865) 637-8812, as listed in official Medicare / NPI Registry data.
What is Robert R. Geier's NPI number?
1336673102. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Robert R. Geier works

Medicare's Facility Affiliation Data lists Robert R. Geier 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 Robert R. Geier is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Robert R. Geier as a member of this group (CMS data updated 2026-10-02).

  • Endocrinology Consultants of East TN37 clinicians in the group

Specialties

Find other Endocrinology doctors in Tennessee →

Other endocrinologists in Knoxville

Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.

All endocrinologists in Knoxville →

Clinician information

CredentialDO
Medical schoolUniversity Of Kentucky College Of Medicine
Graduation year2022
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1336673102
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