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

Mark Kenneth Longmuir, MD

Individual provider Family Medicine Physician · NPI 1326278912

Mark Kenneth Longmuir, MD is a General Practice in Stanley, North Dakota. Graduated from University of North Dakota School of Medicine in 2012, 14 years ago. Practices with Mountrail County Medical Center Inc, a 12-clinician group and accepts Medicare assignment. Licensed in North Dakota.

Years since qualifying
14
Trained at
University of North Dakota School of Medicine
Licensed in
ND
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

615 6th St SE
Stanley, ND 58784-4444
Phone: (701) 628-2424
Fax: (701) 628-3274
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 12233 (ND)

Record details

NPI number1326278912
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 17, 2009
Last updated in NPPESJune 4, 2024
Certification dateJune 4, 2024

Medicare enrollment

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

Medicare specialtyGENERAL PRACTICE
Medical schoolUNIVERSITY OF NORTH DAKOTA SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice Mountrail County Medical Center Inc — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount