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Internist, Oncology Specialist (cancer)
11 years of experience
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 (0)

The overall average patient rating of Dr. Troy Fiddler is Excellent. Dr. Fiddler has been reviewed by 2 patients who have provided 0 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 4.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 3.0
Spends Time with Me 4.0
Follows Up After Visit 2.0

Specialties & Research

Dr. Troy Fiddler, MD, PHD is board certified in Internal Medicine and Medical Oncology.

  • He has special expertise in 6 areas:
  • Biological Therapy (Immunotherapy)
  • Brain Cancer
  • Cancer
  • Gene Therapy
  • Genetics
  • Hepatocellular Carcinoma

Education & Awards

Dr. Fiddler graduated from Oregon Health & Science University, Portland.


Dr. Fiddler has 3 hospital affiliations:

  • St Vincent Healthcare 
  • St Vincent Health Care 
  • Mary Hitchcock Memorial Hospital 

> > > > Dr. Troy Fiddler, MD, PHD

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Additional Information
Dr. Troy A Fiddler MD and PHD is a male Internist, has 11 years of experience and practices in Internal Medicine and Medical Oncology.
Where does Dr. Troy A. Fiddler practice?
Dr. Troy Fiddler has 4 office locations.
Dr. Troy Fiddler practices Internal Medicine and Medical Oncology near Billings, MT.
Additional practice locations include: Cody, WY and Butte, MT.
See Billings Internists and Billings Oncologists.