New Cardiology and OB/GYN Specialists at RVMC

Updated: Oct 5

by Debra McNeill


Ruby Valley Medical Center is pleased to announce that Dr. Hannah Raasch, MD, FACC, and Dr. Mark Garnaas, MD, will be joining the team of visiting specialists at the Ruby Valley Medical Clinic in Sheridan. Dr. Raasch will be providing comprehensive cardiology healthcare. Dr. Garnaas specializes in obstetric and gynecology healthcare.


Dr. Hannah Raasch

When a patient is unwell with shortness of breath or fatigue, the source of the problem is often not apparent just from asking questions in the clinic. The variety and quality of information for resolving heart problems, plus the process of interpreting the data were important factors that drew Dr. Raasch to specialize in cardiology. “In reading monitors, echos, and other information sources, we have a higher degree of control over the analysis and interpretation of heart problems which support the decisions about care,” said Dr. Raasch. She also noted that there is a great deal of information integration that is needed to determine what is pertinent to a cardiac problem and what might be due to other organ systems.

Heart disease is the leading cause of death for men and women in the United States. Whether a patient has an emerging heart problem or is seeking preventive care, Dr. Raasch believes that anyone over 65 has a good reason to see a cardiologist. “Some cardiac care is emergent and unavoidable,” said Raasch. “However, some cardiac concerns can be well-managed through preventive care.” Managing high blood pressure and cholesterol levels and determining better medications for cholesterol are an essential aspect of helping many of Dr. Raasch’s patients avoid their first heart attack. Risk assessments are also an important component of the care she provides.

With regard to upcoming developments in cardiac care, Dr. Raasch is interested in the new therapies for heart failure that have shown efficacy over the past five years. She is also monitoring a drug that will lower cholesterol with a single annual injection and the Watchman device that can be used as an alternative to blood thinners.

Raised in Milwaukee, Wisconsin, Dr. Raasch completed her medical degree at the University of Wisconsin School of Medicine and Public Health. She attended the University of Arizona’s Internal Medicine Residency Program and earned her fellowship at the University of North Carolina at Chapel Hill in the Cardiovascular Disease Residency Program.

Prior to moving to Montana, Dr. Raasch provided cardiology healthcare services in the Salt Lake City area for over eight years. In 2021, Dr. Raasch, her husband, who is also a doctor, and their family moved to Bozeman after she accepted an offer from Billings Clinic. “After previously directing a smaller scale cardiology practice for four years, it was a great opportunity to start a cardiology program from the ground up for Billings Clinic in Bozeman,” said Raasch. When she’s not seeing patients, Dr. Raasch focuses on raising her three young children. She enjoys hiking, skiing, skating and has earned a black belt in Tae Kwon-Do. Dr. Raasch speaks fluent Spanish.

Dr. Raasch will be seeing patients at the Ruby Valley Medical Clinic on September 28th and November 30th. Please call (406) 898-1200 to make an appointment.