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Pediatric Cardiologists in Montana

Data updated monthly · Last refresh October 2026

7 Pediatric Cardiology providers practice in Montana. The largest concentration is in Missoula. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

7providers

Missoulatop city

Pediatric Cardiology by city in Montana

Choose a city to see providers there.

Pediatric Cardiology in Missoula	2 providers
Pediatric Cardiology in Bozeman	2 providers
Pediatric Cardiology in Kalispell	1 providers
Pediatric Cardiology in Billings	1 providers
Pediatric Cardiology in Great Falls	1 providers

Where Pediatric Cardiologists in Montana practice

From CMS Medicare enrollment records covering 4 of the 7 providers listed here (57%). Providers who do not bill Medicare are not included in these figures.

Largest practice groups

Group (as registered with Medicare)	Pediatric Cardiologists	All clinicians in group	Main city
Seattle Childrens Hospital	2	113	Great Falls

Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.

Pediatric Cardiology providers in Montana

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. James Wiggins, MD

Billings, MT · No drug or device payments recorded (2025) · (406) 238-6190

Dr. Louay Toni, MD

Bozeman, MT · No drug or device payments recorded (2025) · (406) 414-4900

Dr. Steven Weindling, M.D.

Bozeman, MT · No drug or device payments recorded (2025) · (406) 414-4900

Dr. Dennis Ruggerie, DO

Great Falls, MT · No drug or device payments recorded (2025) · (406) 454-2171

Dr. Austine Siomos, M.D.

Kalispell, MT · No drug or device payments recorded (2025) · (406) 257-8992

Dr. Bruce Hardy, MD

Missoula, MT · No drug or device payments recorded (2025) · (406) 721-5600

Dr. Joshua Sticka, M.D.

Missoula, MT · $266 in drug and device payments (2025) · (406) 721-5600

Common questions

How many Pediatric Cardiology providers are in Montana?

There are 7 Pediatric Cardiology providers with active NPI records practicing in Montana, according to federal NPPES data refreshed monthly.

Which cities in Montana have the most Pediatric Cardiology providers?

Missoula (2), Bozeman (2), Kalispell (1) have the highest concentration of Pediatric Cardiology providers in Montana.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.