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

John Mark Tollerson, DO

Individual provider Family Medicine Physician · NPI 1467446773

John Mark Tollerson, DO is registered under Family Practice in Kalispell, Montana. Qualified in 2004, 22 years ago. Practices with Kalispell Regional Medical Center Inc, a 418-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Montana and Washington.

Years since qualifying
22
Licensed in
MT, WA
In the registry since
2005
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

160 Heritage Way Ste 202
Kalispell, MT 59901-3127
Phone: (406) 752-8433
Fax: (406) 756-6768
Show map & directions

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

Additional practice locations (3)

  • 809 Sunset Blvd, Conrad, MT 59425-1799 — (406) 271-3211
  • 805 Sunset Blvd, Conrad, MT 59425-1717 — (406) 271-3211
  • 640 Park Ave, Shelby, MT 59474-1663 — (406) 434-3205

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 11207 (MT)
Family Medicine Physician Taxonomy 207Q00000X · Licence OP00002022 (WA)

Record details

NPI number1467446773
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedSeptember 1, 2005
Last updated in NPPESOctober 27, 2023
Certification dateOctober 27, 2023

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Kalispell Regional Medical Center Inc — 418 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times
Removal or shaving of skin growth 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients84
Services billed 370 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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. Those with a page here are linked.

Colleagues at Kalispell Regional Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 418 clinicians in the practice; 12 are shown here.

Other providers in Kalispell