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Radiation Oncology

Jeffrey W. Gefter, MD

Works at hospitals in Chattanooga, TN · Tennessee

Summary

Dr. Jeffrey W. Gefter, MD is a radiation oncologist at 605 Glenwood Dr, Suite 200, Chattanooga, TN 37404. Phone: (423) 698-1844. Accepts Medicare assignment. In 2024, Jeffrey W. Gefter had 70 Original Medicare patients and 235 services. NPI 1023093168. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Radiation oncologist (Medicare lists Radiation Oncology)
  • Address: 605 Glenwood Dr, Suite 200, Chattanooga, TN 37404 · Directions
  • Phone: (423) 698‑1844
  • Medicare: Accepts Medicare assignment
  • Hospital: Parkridge Medical Center
  • Group practice: Tennessee Oncology PLLC
  • Medical school: University Of Florida College Of Medicine · graduated 1975 (51 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Jeffrey W. Gefter, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Jeffrey W. Gefter accept Medicare assignment?
Yes. Medicare's clinician data says Jeffrey W. Gefter accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Jeffrey W. Gefter see?
In 2024, CMS data shows 70 Original Medicare patients and 235 services for Jeffrey W. Gefter. This counts Original Medicare only and measures volume, not quality.
What is Jeffrey W. Gefter's NPI number?
1023093168. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Jeffrey W. Gefter, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients70
Services billed to Medicare235
Different services or procedures14
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Ct guidance for insertion of radiation therapy fields (77014)133 services
  2. Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)32 services
  3. Design and construction of complex radiation treatment device (77334)18 services
  4. Radiation treatment management, 5 treatment sessions (77427)13 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • High cholesterol67%
  • Arthritis57%
  • Depression44%
  • Anxiety39%

Hospitals where Jeffrey W. Gefter works

Medicare's Facility Affiliation Data lists Jeffrey W. Gefter at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Jeffrey W. Gefter is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jeffrey W. Gefter as a member of this group (CMS data updated October 2, 2026).

  • Tennessee Oncology PLLC358 clinicians in the group

Specialties

Find other Radiation Oncology doctors in Tennessee →

Other radiation oncologists in Chattanooga

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

All radiation oncologists in Chattanooga →

Other clinicians in Tennessee Oncology PLLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Florida College Of Medicine
Graduation year1975 (51 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1023093168
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians