Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Clancy Joyce Hartman, FNP-C

Individual provider Family Nurse Practitioner · NPI 1235818535

Mrs. Clancy Joyce Hartman, FNP-C is a Nurse Practitioner in Lewistown, Montana. Qualified in 2023, 3 years ago. Practices with Bighorn Valley Health Center Incorporated, a 86-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
3
Licensed in
MT
In the registry since
2023
What do these letters mean?
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

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Practice location Address checks out

311 W Main St
Lewistown, MT 59457-2760
Phone: (406) 535-6545
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 300 1st Ave N Ste 202, Lewistown, MT 59457-1700 — (406) 535-8811

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 217113 (MT)

Record details

NPI number1235818535
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-C
Sole proprietorNo
NPI enumeratedJuly 13, 2023
Last updated in NPPESDecember 5, 2025
Certification dateDecember 5, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Bighorn Valley Health Center Incorporated — 86 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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