Mary Stewart, PHARMD
NPI 1669026175 · Pharmacist · Billings, MT
Mary Stewart, PHARMD is a Pharmacist provider in Billings, MT (NPI 1669026175).
Provider details
- NPI number
- 1669026175
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- PHARMD
- Sex
- Female
- Sole proprietor
- Yes
- License
- PHA-PHA-LIC-63045 (MT)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
6 documented practice locations
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 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rsv Vacc, Pref a and Pref B/Pfbrand: Abrysvo | 59 | 59 |
| Varicella-Zoster Ge/As01b/Pfbrand: Shingrix | 31 | 29 |
| Diphth,pertuss(acell),tet Vacbrand: Boostrix Tdap | 24 | 24 |
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
Additional practice locations (5)
- 1212 Grand AveBillings, MT 59102-4259Phone: (406) 248-5544
- 611 N 27th StBillings, MT 59101-1112Phone: (406) 259-1441
- 2334 Central AveBillings, MT 59102-4665Phone: (406) 656-6652
- 511 Central AveBillings, MT 59102-5813Phone: (406) 245-4301
- 3137 Grand AveBillings, MT 59102-8134Phone: (406) 652-8359
Registry dates
- Enumerated
- 2019-08-01
- Last updated
- 2019-08-01
Frequently asked questions
- What is Mary Stewart's NPI number?
- Mary Stewart's National Provider Identifier (NPI) is 1669026175, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Stewart's specialty?
- Mary Stewart is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Mary Stewart located?
- Mary Stewart's practice location on file with NPPES is 670 Main St, Billings, MT 59105-3224.
- What is Mary Stewart's phone number?
- The practice phone number listed in the NPPES registry for Mary Stewart is (406) 245-6979.
- Is Mary Stewart's NPI active?
- Yes — Mary Stewart's NPI (1669026175) is active in the NPPES registry as of the last update on 2019-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.