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Troy A. Fiddler, MD

Hematology & Oncology Physician · Oncologist in Billings, MT

2900 12th Ave N, Ste 160w

Billings, MT 59101

(406) 238-6290

Provider details

Specialty
Hematology & Oncology Physician
Credentials
MD
NPI number
1730130311

Checked against the CMS National Provider Identifier registry on October 2, 2026.

Medicare information

Medical school
Oregon Health Sciences University School of Medicine, graduated 2000
Also practices
Internal Medicine
Also sees patients at
  • Scl Health Montana
    1315 Golden Valley Cir, Billings, MT 59102 · (406) 238-6290
Hospital affiliations
  • Intermountain Health St Vincent Regional Hospital, Billings, MT · Medicare rating 4 out of 5 stars
  • Holy Rosary Hospital, Miles City, MT · Medicare rating 5 out of 5 stars
  • Beartooth Billings Clinic, Red Lodge, MT
  • Cody Regional Health, Cody, WY · Medicare rating 3 out of 5 stars
  • Billings Clinic Hospital, Billings, MT · Medicare rating 4 out of 5 stars
Medicare
Accepts Medicare assignment (the Medicare-approved amount as full payment)
Telehealth
Offers telehealth visits

From Medicare’s public Care Compare data (Doctors and Clinicians), checked October 3, 2026. Ratings are Medicare’s, not Know Cancer’s. Medicare Care Compare

About

Specialties

  • Oncology
  • Internal Medicine

Insurance

  • Assurant Health
  • Cigna
  • Cigna - Open Access
  • Cigna PPO
  • First Health PPO
  • Great West Healthcare PPO
  • Humana
  • MultiPlan PPO
  • United HealthCare
  • United HealthCare - Choice Plus POS
  • United HealthCare - Options PPO

Other care in Billings

Listings are provided for information only and may be out of date. Know Cancer does not endorse any provider. Please confirm details directly with the provider.