Troy Fiddler, M.D.
NPI 1730130311 · Hematology & Oncology Physician · Billings, MT
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Troy Fiddler, M.D. is a Hematology & Oncology Physician provider in Billings, MT (NPI 1730130311).
Provider details
- NPI number
- 1730130311
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 11070 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,939 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,364 | $95 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 346 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 145 | $65 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 62 | $131 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 22 | $48 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 271 | 83 |
| Prednisone | 168 | 48 |
| Abiraterone Acetate | 157 | 23 |
| Ondansetron Hcl | 106 | 57 |
| Gabapentin | 84 | 21 |
| Potassium Chloride | 83 | 25 |
| Tamoxifen Citrate | 82 | 25 |
| Hydroxyurea | 82 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-16
- Last updated
- 2010-09-08
Frequently asked questions
- What is Troy Fiddler's NPI number?
- Troy Fiddler's National Provider Identifier (NPI) is 1730130311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Troy Fiddler's specialty?
- Troy Fiddler is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Troy Fiddler located?
- Troy Fiddler's practice location on file with NPPES is 1315 Golden Valley Cir, Billings, MT 59102-6746.
- What is Troy Fiddler's phone number?
- The practice phone number listed in the NPPES registry for Troy Fiddler is (406) 238-6290.
- Does Troy Fiddler accept Medicare?
- Troy Fiddler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Troy Fiddler's NPI active?
- Yes — Troy Fiddler's NPI (1730130311) is active in the NPPES registry as of the last update on 2010-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.