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

MS. Chelsey Clark, PA-C, RDN, CDCES, CLC

Individual provider Physician Assistant · NPI 1699172049

MS. Chelsey Clark, PA-C, RDN, CDCES, CLC is a Physician Assistant in Big Timber, Montana. Qualified in 2023, 3 years ago. Practices with Pioneer Medical Center, an 11-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
3
Licensed in
MT
In the registry since
2014
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.
RDN — Registered Dietitian Nutritionist
The current title for a registered dietitian.

See every abbreviation used in this directory →

Practice location Address checks out

701 Stock St
Big Timber, MT 59011-8071
Phone: (406) 932-4199
Fax: (406) 932-5490
Show map & directions

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

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X
Registered Dietitian Taxonomy 133V00000X · Licence 21049 (MT)

Record details

NPI number1699172049
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C , RDN , CDCES , CLC
Sole proprietorNo
NPI enumeratedDecember 1, 2014
Last updated in NPPESMarch 11, 2025
Certification dateMarch 11, 2025

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Pioneer Medical Center — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Other providers in Big Timber