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Oncology Specialist (cancer), Radiologist, Radiation Oncology
27 years of experience
Video profile
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. Dennis Hallahan is Below Average. Dr. Hallahan has been reviewed by 6 patients who have provided 1 comments. The rating is 2 out of 5 stars.

Patient Ratings
Ease of Appointment 2.8
Promptness 2.9
Courteous Staff 3.7
Accurate Diagnosis 1.7
Bedside Manner 1.7
Spends Time with Me 1.7
Follows Up After Visit 1.7

Specialties & Research

Dr. Dennis Hallahan, MD is board certified in Radiation Oncology.

  • He has special expertise in 18 areas:
  • Breast Cancer
  • Cancer
  • Gastrointestinal Cancer
  • Gene Therapy
  • Head and Neck Cancer
  • Hodgkin Disease
  • Lewis Lung Carcinoma
  • Local Neoplasm Recurrence
  • Lung Cancer
  • Lung Cancer (Non-Small-Cell Lung Carcinoma)
  • Metastatic Breast Cancer
  • Prostate Cancer (Prostatic Neoplasm)
  • Radioimmunotherapy
  • Skin Cancer (Experimental Melanoma)
  • Soft Tissue Cancer (Sarcoma)
  • Squamous Cell Carcinoma
  • Throat Cancer (Laryngeal Neoplasm)
  • Urogenital Cancer (Genitourinary)

Education & Awards

Dr. Hallahan graduated from Rush Medical College, Chicago. He has 4 awards.

One of America's Leading Experts on:
Gene Therapy
Lewis Lung Carcinoma
Lung Cancer (Lung Neoplasm)


Dr. Hallahan has 13 hospital affiliations:

  • Vanderbilt University Hospital 
  • Barnes-Jewish West County Hospital 

> > > > Dr. Dennis Hallahan, MD

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Additional Information
Dr. Dennis E Hallahan MD is a male Radiation Oncologist, has 27 years of experience and practices in Radiation Oncology.
Where does Dr. Dennis E. Hallahan practice?
Dr. Dennis Hallahan has 3 office locations.
Dr. Dennis Hallahan practices Radiation Oncology near Franklin, TN.
Additional practice locations include: Saint Louis, MO and Alton, IL.
See Franklin Oncologists.