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Internal Medicine Providers in Great Falls, MT

Browse 21 Internal Medicine providers listed in NPPES with a practice address in Great Falls, Montana.

21 Healthcare Providers

How Great Falls compares with the U.S.

Great Falls has 35 clinicians in Internal Medicine per 100,000 residents, 22% lower than the U.S. rate of 44.

That is 21 active clinicians in Internal Medicine with a practice address in Great Falls, for a population of 60,329.

The Montana rate is 29 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places.

100% of clinicians in Internal Medicine in Great Falls listed in the CMS Medicare file (13 of 13) accept Medicare assignment. That is similar to the Montana share of 97%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

15% of clinicians in Internal Medicine in Great Falls listed in the CMS Medicare file (2 of 13) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the Montana share of 25%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in Great Falls, MT

Source: CMS PECOS
PECOS Enrolled Specialists 17 In Great Falls, MT
Part B Lab & Imaging Eligible 16 Diagnostic Referrals
DME Ordering Eligible 18 Durable Medical Equipment
Home Health Agency Referrals 16 HHA Ordering Eligible
Showing 1โ€“20 of 21 providers
With recent CMS data first, then Aโ€“Z

Dr. Sean Constantine Banks , DO

Internal Medicine

Active NPI Status
3010 15th Ave S, Great Falls, MT 594055240
Phone: 4064542171
NPI Identifier 1720374648
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Dr. Bradford A Bergman , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1401 25th St S, Great Falls, MT 594055183
Phone: 4067318888
NPI Identifier 1235130113
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Dr. Kathleen S Blair , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1401 25th St S, Great Falls, MT 594055183
Phone: 4067318888
NPI Identifier 1346335189
View Full Profile

Dr. Lorenzo Boccuzzi , DO

Internal Medicine

Active NPI Status
1401 25th St S, Great Falls, MT 594055183
Phone: 4064555000
NPI Identifier 1598734980
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Dr. Gary A Buffington , MD

Internal Medicine

Active NPI Status
1101 26th St S, Great Falls, MT 594055161
Phone: 4064554690
NPI Identifier 1922009802
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Dr. Steven M Chrzanowski , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1401 25th St S, Great Falls, MT 594055183
Phone: 4067318888
NPI Identifier 1568454692
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Dr. Michael F Doubek , MD

Internal Medicine

Active NPI Status
1114 3rd Ave North, Great Falls, MT 594011114
Phone: 4064537600
NPI Identifier 1336290337
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Dr. Eve M Gerasimou , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3000 15th Ave S, Great Falls, MT 594055240
Phone: 4064542171
NPI Identifier 1457312464
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Raheel Khalid

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1101 26th St S, Great Falls, MT 594055161
Phone: 4064555000
NPI Identifier 1962843979
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Dr. Stacy M Kingsland , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
401 15th Ave S Ste 201, Great Falls, MT 594054334
Phone: 4067272121
NPI Identifier 1528160173
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Dr. James B Legan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
401 15th Ave S Ste 201, Great Falls, MT 594054334
Phone: 4067272121
NPI Identifier 1871605790
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Dr. Sumaiya Mahboob , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1101 26th St S, Great Falls, MT 594055161
Phone: 4064555000
NPI Identifier 1558855502
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Dr. Meredith Kathleen Mckanna , MD

Internal Medicine

Active NPI Status
1101 26th St S, Great Falls, MT 594055161
Phone: 4064554694
NPI Identifier 1346944592
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Dr. Berilonson Stephen Osiro , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1401 25th St S, Great Falls, MT 594055183
Phone: 4067318888
NPI Identifier 1356748859
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Dr. Lee Anthony Pietrangelo , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1101 26th St S, Great Falls, MT 594055161
Phone: 4064555000
NPI Identifier 1477656734
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Dr. Mohan Shrestha , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1101 26th St S, Great Falls, MT 594055161
Phone: 4064555000
NPI Identifier 1568638641
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Dr. Nicholas Alexander Trum , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1401 25th St S, Great Falls, MT 594055183
Phone: 4064555000
NPI Identifier 1952051435
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Dr. Katherine Ann Zitello , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1401 25th St S, Great Falls, MT 594055183
Phone: 4067318888
NPI Identifier 1427685270
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Dr. Kirsten Elizabeth Krauss , MD

Internal Medicine

Active NPI Status
1417 9th St S Ste 200, Great Falls, MT 594054509
Phone: 4064548070
NPI Identifier 1174627756
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Dr. Tony J Lenz , MD

Internal Medicine

Active NPI Status
1400 29th St S, Great Falls, MT 594055353
Phone: 4064542171
NPI Identifier 1508867375
View Full Profile

Frequently Asked Questions about Internal Medicine in Great Falls

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Montana licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.