Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mrs. Wendy Courtnage Tilleman, APRN, FNP-BC

Individual provider Registered Nurse · NPI 1487829180

Mrs. Wendy Courtnage Tilleman, APRN, FNP-BC is a Nurse Practitioner in Box Elder, Montana. Qualified in 2021, 5 years ago. Practices with Rocky Boy Health Center, a 10-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
5
Licensed in
MT
In the registry since
2008
Specialties on file
2
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

See every abbreviation used in this directory →

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Practice location Address checks out

6850 Uppr OX Elder Road
Box Elder, MT 59521-9797
Phone: (406) 395-4486
Fax: (406) 395-5850
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence NUR-APRN-LIC-177081 (MT)
Registered Nurse Taxonomy 163W00000X · Licence RN25483 (MT)

Record details

NPI number1487829180
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN , FNP-BC
Sole proprietorNo
NPI enumeratedApril 24, 2008
Last updated in NPPESOctober 8, 2021
Certification dateSeptember 27, 2021

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Rocky Boy Health Center — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients100
Services billed 1,404 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Rocky Boy Health Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 10 clinicians in the practice; 7 are shown here.

Other providers in Box Elder