Andrew Tietjen, FNP
NPI 1427859164 · Nurse Practitioner · Boise, ID
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Tietjen, FNP is a Nurse Practitioner provider in Boise, ID (NPI 1427859164).
Provider details
- NPI number
- 1427859164
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 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 (1)
- 10583 W Lake Hazel RdBoise, ID 83709-6326Phone: (208) 302-5950
Registry dates
- Enumerated
- 2025-03-20
- Last updated
- 2025-05-23
- Certified
- 2025-05-23
Frequently asked questions
- What is Andrew Tietjen's NPI number?
- Andrew Tietjen's National Provider Identifier (NPI) is 1427859164, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Tietjen's specialty?
- Andrew Tietjen is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Andrew Tietjen located?
- Andrew Tietjen's practice location on file with NPPES is 6051 W Emerald St, Boise, ID 83704-8969.
- What is Andrew Tietjen's phone number?
- The practice phone number listed in the NPPES registry for Andrew Tietjen is (208) 302-5150.
- Does Andrew Tietjen accept Medicare?
- Andrew Tietjen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Tietjen's NPI active?
- Yes — Andrew Tietjen's NPI (1427859164) is active in the NPPES registry as of the last update on 2025-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.