IndividualActive
Teresa Callahan, RN
NPI 1477801801 · Flight Registered Nurse · Billings, MT
Teresa Callahan, RN is a Flight Registered Nurse provider in Billings, MT (NPI 1477801801).
Provider details
- NPI number
- 1477801801
- Entity type
- Individual
- Primary specialty
- Flight Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- Yes
- License
- RN40332 (MT)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Detailed profile(79/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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.
Practice location
1233 N 30th
Billings, MT 59101
Phone: (406) 238-6791
Street-level locationGet directions
Mailing address
602 E Emory Rd
Lavina, MT 59046-7014
Registry dates
- Enumerated
- 2012-08-15
- Last updated
- 2012-08-15
Frequently asked questions
- What is Teresa Callahan's NPI number?
- Teresa Callahan's National Provider Identifier (NPI) is 1477801801, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Teresa Callahan's specialty?
- Teresa Callahan is listed in the NPPES registry with a primary specialty of Flight Registered Nurse (Nursing Service Providers).
- Where is Teresa Callahan located?
- Teresa Callahan's practice location on file with NPPES is 1233 N 30th, Billings, MT 59101.
- What is Teresa Callahan's phone number?
- The practice phone number listed in the NPPES registry for Teresa Callahan is (406) 238-6791.
- Is Teresa Callahan's NPI active?
- Yes — Teresa Callahan's NPI (1477801801) is active in the NPPES registry as of the last update on 2012-08-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.