Troy A. Fiddler, MD
HematologyHematology OncologyMedical Oncology
Highlights
Age Groups Seen
- Adult 19-64
- Older Adult >65
Gender
MaleHospital Affiliation
- Holy Rosary Hospital
- St. Vincent Regional Hospital
About Troy A. Fiddler
About The Provider
Dr. Fiddler is an investigator involved in clinical research trials in the area of medical oncology and hematology. His clinical research focus includes oncology and hematology.
Locations
- St. Vincent Regional Hospital - Cancer Centers of Montana
- 1315 Golden Valley Circle, Billings, MT 59102
- Get Directions
- phone: 406-238-6290
- fax: 406-238-6961
Expertise
Education
- Fellowship: Dartmouth-Hitchcock Medical Center, Internal Medicine, Hematology & Oncology, 2006
- Residency: MaineHealth Maine Medical Center, Internal Medicine, 2003
- Medical School: Oregon Health & Science University School of Medicine, 2000
Board Certifications
- Medical Oncology: American Board of Internal Medicine, 2006
Insurance
- 6 Degrees Health
- Aetna
- Alignetworks
- Allegiance Provider Direct
- Americas Choice Provider Network
- Banner Health System
- BCBS
- Cigna
- City of Billings Employee Health Plan
- Community Health Network
- FedMed Network
- First Choice Health Network
- First Choice of the Midwest
- First Health/Coventry
- Fortified Provider Network
- Humana
- Humana Medicare Advantage
- Interwest
- Logistics Health Incorporated
- Montana Health Systems
- Mountain Health Co-op
- Pacific Steel & Recycling
- PacificSource
- Preferred One
- Sibanye Stillwater Health Partners
- Three Rivers Provider Network
- Tricare
- TriWest
- United Healthcare
- VA Montana Health System
Ratings & Reviews
4.9 out of 5
286 ratings, 30 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- 5 out of 5 starsReviewed on 3/10/2026
DR FIDDLER TO ME IS VERY CAREING GREAT TO HAVE HIM TAKEING CARE OF MYSELF
- 5 out of 5 starsReviewed on 2/27/2026
Dr. Fiddler provides such positive care.
- 5 out of 5 starsReviewed on 2/26/2026
Very knowledgeable and professional..easy to talk to and discuss details of our medical plan an exceptional care giver and Doctor.
- 4 out of 5 starsReviewed on 2/17/2026
I have been involved with Dr fiddler for the last couple years because of my husband's cancer. And we were happy with the care he received and I received. Nothing like keeping it in the family!
- 5 out of 5 starsReviewed on 2/1/2026
He stays really positive whether it’s good news or bad news which puts my mind at ease.
- 5 out of 5 starsReviewed on 1/30/2026
He’s been very personable and professional
- 5 out of 5 starsReviewed on 1/21/2026
Dr Fiddler has been with me from the start of this horrendous diagnosis. He is pleasant and personable and walks me through every fear or question I may have. I will forever be grateful for him and the help and care he gives and continues to give over the last 3+ years
- 4 out of 5 starsReviewed on 1/21/2026
Dr. Fiddler was always pleasant, courteous and helpful.
- 5 out of 5 starsReviewed on 1/17/2026
He is so knowledgeable and personable. He cares!
- 5 out of 5 starsReviewed on 1/6/2026
Very pleasant and caring
- 5 out of 5 starsReviewed on 12/12/2025
He does a good job with me hebis very knowledgeable
- 5 out of 5 starsReviewed on 12/11/2025
Dr. Fiddler explains things as they are. He is polite and kind.
- 5 out of 5 starsReviewed on 12/6/2025
I like him and he put up with all my joking around.
- 5 out of 5 starsReviewed on 11/30/2025
Dr Fiddler always listens to my concerns and addresses them.
- 5 out of 5 starsReviewed on 11/8/2025
He is an awesome Doctor. His expert opinion on how things would progress were 100% correct, and he has a great sense of humor to boot. A person couldn't ask for a better doctor to be cared for by. Thank you Dr. Fiddler, my daughter and I are so very grateful for your expertise, and kindness.
- 5 out of 5 starsReviewed on 11/2/2025
I would recommend him without reservation and with lots of enthusiasm. He is amazing on every level.
- 5 out of 5 starsReviewed on 10/31/2025
He's a smart man on top of my situation
- 4 out of 5 starsReviewed on 10/24/2025
Satisfied
- 5 out of 5 starsReviewed on 10/16/2025
He is trying hard to serve me he is handling the frustration well !!
- 5 out of 5 starsReviewed on 10/6/2025
He spoke in language a laymen could understand. Very pleasant and even seemed to care about my small cancer issue.
- 5 out of 5 starsReviewed on 9/24/2025
Dr. Fiddler made me feel as if he has been involved with my care from the beginning even hough he was stepping in for Dr. Hool.
- 5 out of 5 starsReviewed on 9/5/2025
Clone him!
- 5 out of 5 starsReviewed on 9/1/2025
Professional knowledgeable caring
- 5 out of 5 starsReviewed on 8/29/2025
He's figuring out the best tr was treatment for my Cancer
- 5 out of 5 starsReviewed on 8/23/2025
Fantastic oncologist great help
- 5 out of 5 starsReviewed on 8/4/2025
Professional knowledgeable caring
- 4 out of 5 starsReviewed on 7/26/2025
Told it as it is & didn't beat around the bush !
- 5 out of 5 starsReviewed on 7/12/2025
Dr Fiddler always takes time with me to check on not only my current needs for my cancer treatment, but my overall health needs.
- 5 out of 5 starsReviewed on 7/7/2025
Professional knowledgeable caring
- 5 out of 5 starsReviewed on 6/17/2025
amazing doctor, positive and makes things happen to help me quickly.