Teresa Frey, DO
NPI 1336536291 · Hospitalist Physician · Great Falls, MT
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Teresa Frey, DO is a Hospitalist Physician provider in Great Falls, MT (NPI 1336536291).
Provider details
- NPI number
- 1336536291
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 15241 (ND)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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.
Practice location
Mailing address
Additional practice locations (2)
- 5225 23rd Ave SFargo, ND 58104-7927Phone: (701) 234-2411
- 1400 W 22nd StSioux Falls, SD 57105-1554Phone: (605) 333-7197
Registry dates
- Enumerated
- 2015-04-17
- Last updated
- 2023-06-01
- Certified
- 2023-06-01
Frequently asked questions
- What is Teresa Frey's NPI number?
- Teresa Frey's National Provider Identifier (NPI) is 1336536291, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Teresa Frey's specialty?
- Teresa Frey is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Teresa Frey located?
- Teresa Frey's practice location on file with NPPES is 1101 26th St S, Great Falls, MT 59405-5161.
- What is Teresa Frey's phone number?
- The practice phone number listed in the NPPES registry for Teresa Frey is (406) 731-8888.
- Does Teresa Frey accept Medicare?
- Teresa Frey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Teresa Frey's NPI active?
- Yes — Teresa Frey's NPI (1336536291) is active in the NPPES registry as of the last update on 2023-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.