Thomas Weiner, MD
NPI 1538260179 · Hematology & Oncology Physician · Helena, MT
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Weiner, MD is a Hematology & Oncology Physician provider in Helena, MT (NPI 1538260179).
Provider details
- NPI number
- 1538260179
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 7961 (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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Carvedilol | 17 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 14 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-26
- Last updated
- 2018-03-30
Frequently asked questions
- What is Thomas Weiner's NPI number?
- Thomas Weiner's National Provider Identifier (NPI) is 1538260179, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Weiner's specialty?
- Thomas Weiner is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Weiner located?
- Thomas Weiner's practice location on file with NPPES is 2475 E Broadway St, Helena, MT 59601-4928.
- What is Thomas Weiner's phone number?
- The practice phone number listed in the NPPES registry for Thomas Weiner is (406) 457-4180.
- Does Thomas Weiner accept Medicare?
- Thomas Weiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Weiner's NPI active?
- Yes — Thomas Weiner's NPI (1538260179) is active in the NPPES registry as of the last update on 2018-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.