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

Mr. Dennis Lee Peterson, MD

Individual provider Internal Medicine Physician · NPI 1205986460

Mr. Dennis Lee Peterson, MD is an Internal Medicine in Kalispell, Montana. Graduated from University of Nebraska College of Medicine in 1978, 48 years ago. Practices with Kalispell Regional Medical Center Inc, a 418-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
48
Trained at
University of Nebraska College of Medicine
Licensed in
MT
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

705 6th Ave E
Kalispell, MT 59901-5047
Phone: (406) 755-7366
Fax: (406) 755-7277
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5 4th Ave E, Polson, MT 59860-2117 — (406) 745-3525

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MED-PHYS-LIC-4557 (MT)

Record details

NPI number1205986460
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 11, 2007
Last updated in NPPESApril 8, 2025
Certification dateApril 8, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF NEBRASKA COLLEGE OF MEDICINE
Graduated 1978 (48 years in practice)
Group practice Kalispell Regional Medical Center Inc — 418 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Other providers in Kalispell