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

Thomas Brice Addison, MD

Individual provider Internal Medicine Physician · NPI 1871594754

Thomas Brice Addison, MD practises Internal Medicine in Great Falls, Montana. Graduated from Mayo Medical School in 1984, 42 years ago. Practices with Benefis Hospitals Inc, a 398-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Montana.

Years since qualifying
42
Trained at
Mayo Medical School
Licensed in
MT
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1401 25th St S
Great Falls, MT 59405-5183
Phone: (406) 731-8888
Fax: (406) 731-8839
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 5064 (MT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 5064 (MT)

Record details

NPI number1871594754
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 2, 2005
Last updated in NPPESApril 5, 2024
Certification dateApril 5, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMAYO MEDICAL SCHOOL
Graduated 1984 (42 years in practice)
Group practice Benefis Hospitals Inc — 398 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations12 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 32 times · 69th percentile
Melanoma (skin cancer) excision 1–10 times
Removal or shaving of skin growth 1–10 times
Skin biopsy 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 patients2,104
Services billed 4,965 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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $39 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Benefis Hospitals Inc Hospital · Great Falls, MT · listed as Benefis Hospitals, Inc
  • Benefis Teton Medical Center Hospital · Choteau, MT · listed as Teton Medical Center
  • Great Falls Clinic Hospital Hospital · Great Falls, MT · listed as Great Falls Clinic LLC
  • Northern Montana Hospital Hospital · Havre, MT
  • Benefis Community Care Inc Home health agency · Great Falls, MT · listed as Benefis Community Care, Inc
  • Missouri River Medical Center Hospital · Fort Benton, MT
  • Medallion Medical Care Home health agency · Great Falls, MT
  • Peace Hospice Of Montana Hospice · Great Falls, MT
  • Benefis Senior Services - Eastview Nursing home · Great Falls, MT
  • Benefis Senior Services - Westview Nursing home · Great Falls, MT

Colleagues at Benefis Hospitals Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 398 clinicians in the practice; 12 are shown here.

Other providers in Great Falls