Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Andrew Tietjen, FNP

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1427859164

Andrew Tietjen, FNP is a Nurse Practitioner in Boise, Idaho. Qualified in 2025, 1 year ago. Practices with Saint Alphonsus Regional Medical Center Inc, a 673-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Idaho.

Years since qualifying
1
Licensed in
ID
In the registry since
2025
Specialties on file
2
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Boise, ID

No coordinates on file. Search this address in Google Maps

Additional practice locations (1)

  • 10583 W Lake Hazel Rd, Boise, ID 83709-6326 — (208) 302-5950

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 5871656 (ID)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1427859164
Entity typeIndividual (Type 1)
GenderMale
Credentials FNP
Sole proprietorNo
NPI enumeratedMarch 20, 2025
Last updated in NPPESMay 23, 2025
Certification dateMay 23, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2025 (1 years in practice)
Group practice Saint Alphonsus Regional Medical Center Inc — 673 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations14 on file with Medicare

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Saint Alphonsus Regional Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 673 clinicians in the practice; 12 are shown here.

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