Dr. Alrich L. Gray // Central Montana Heart & Vascular Institute

Michelle Gibbons, CMA
Practice Manager

Michelle has been in the medical field since 2001 and clinical management since 2005.

She has worked in Family Practice, Internal Medicine, OB, Rheumatology, Endocrinology, and Neurology.

She also worked as a Certified Medical Assistant, Healthcare IT, and Clinical Informatics.

She enjoys time with family and friends, snowmobiling, boating, hiking with the pups, working on the ranch, and pretty much anything else outdoors.

"Healthcare has been a passion of mine ever since I can remember. I love working with the patients, getting to see them evolve in their health and being a part of that whole process. After working in many facets of health care for so many years I am blessed to be working with Dr. Gray where the patient really is number one!"

Tanna Schroetlin
Lead Medical Scheduler

I was born and raised Great Falls, Montana girl and feel blessed to have been able to raise my girls here as well. I have spent my career helping others in the medical field and over the last 35+ years, I have worked in ENT, Ophthalmology, Pediatrics, Family Medicine and now Cardiology.   I have held positions such as Receptionist/Medical Scheduler, Medical Tech, Certified Optician, Surgical Assistant, Registered Medical Assistant and a Children’s Autism Trainer.

I own a small Essential Oil business where I enjoy teaching workshops and educating on natural solutions. I love the outdoors, camping, hiking, sporting events (Go Cats!!), Hot springs, concerts, playing with the flowers in my yard, and spending time with my girls, family and friends!

Seems I am starting a new chapter in my life.  My youngest just turned 21,  and I am experiencing a bit of the empty nest syndrome.  While I now have to take out my own garbage...my grocery and water bill have gone down!

I am looking forward to spending the rest of my career here at Central Montana Heart  & Vascular Institute!

Elisha Foster
Procedure Scheduler

Elisha was born in Utah, moved when she was 6yrs old and grew up primarily in Eastern Montana. She moved to Great Falls the summer before she started high school and fell in love with the city of Great Falls.

It was here she raised her two spunky, independent children who also have a deep love for Montana. She met and married the love of her life in 2007. Elisha has been in the medical field since 2010. She began as a documentation specialist for an orthopedic and prosthetic device supplier.

She then spent 3 years as a billing/coding specialist for a family medicine clinic. Elisha enjoys traveling, adventuring around her home state, spending time with family & friends, watching TV shows & movies, and listening to music.

“I have a passion for helping others. Working in medical gives me the opportunity to play a part in patient care. I feel blessed to have the opportunity to learn and grow with Dr. Gray and his amazing team”.

Khamisah Hunter

Khamisah Hunter has been the echocardiographer for Central Montana Heart and Vascular, LLC since November 2020. What excites Khamisah the most is helping her community and making people smile. She graduated from Ogeechee Technical College in 2019 with an associate’s degree in echocardiography. In her free time, Khamisah likes to exercise, sauna, and drink hot tea.

Shannon Hane, RN
Device Specialist/Nurse

Shannon has been in the medical field for 25 years, with 19 years as a volunteer emergency medical technician serving the Sun River Valley Community.

She has worked as a registered nurse in Cardiology, both inpatient and clinic settings, for the last 15 years.

She earned her bachelor's in nursing and is a basic life support instructor and educator on congestive heart failure and stroke as well.

Her experience included group home care with Alzheimer’s and mental disabilities, long-term care as a certified nurse assistant, and traveling beautiful Montana as a Zoll LifeVest patient service representative.

She enjoys time with her young family at home on her little animal farm, skiing, and snowmobiling. She also loves to read and cross-stitch.

"Patient care has always been my number one priority. I have loved having the opportunity to care for patients in different healthcare settings as well as their homes and watching them return to better health. I am excited and thankful to be a part of CMHVI and work with Dr. Gray, where patients and their care are #1."

Megan Brinka, RN
Clinical Staff

Megan Brinka is a BSN, RN from Great Falls, MT. She found her love for cardiovascular medicine when she started working in the Progressive Cardio Vascular Unit at Benefis right after graduating from Montana State. She loves medicine of the heart because she admires the comprehensive affect it has on the rest of the body. If you understand how the heart works, you can then have a greater understanding of the rest of the human body and its many diverse functions. When she’s not working at the clinic, or checking in on her patients in the hospital, she can be found snuggling with her kitties or one year old niece Kinsley. She has a love for Montana and its natural beauty along with the small-town closeness you feel with its residents anywhere you go. Megan would love to go on to obtain her Masters of Nursing where she can continue to learn and become an expert on all things cardiovascular.


Jessica has been in the medical field for 5 years working as a PCVU CNA and now in the Cardiology clinic.

Prior to being a CNA, she served 5 years active duty in the Army stationed in Germany working as a Correctional Officer in a Military Prison. While stationed overseas she had the opportunity to travel to countless countries. Her favorites being Germany and France where she spent her time off visiting castles and trying new foods.

On her days off you can catch her traveling around the country with her daughter hiking national parks. She also enjoys fishing, hunting, and pretty much anything outdoors.

Maddy Hane
Clinical Staff

A young enthusiastic student who has worked in the cardiac medical office for one year. She has several years of experience in assisting in the care of elderly and Alzheimer’s as she actively assists with the continuing care of her grandparents.

She continues with her schooling studies as well as completing her certification as a nursing assistant. Maddy is a passionate caregiver and likes to help others. She is taking steps toward pursuing a doctorate degree as a neonatal surgeon.

Hobbies include downhill skiing, swimming, reading, and racing Outlaw Karts as well as raising her 4 legged son “Tucker,” a dachshund.

Ayana Gray
Clinical Staff

Although she moved around frequently while growing up, Ayana is a graduate of CMR High School here in Great Falls. She is currently a student at Harvard University, majoring in biomedical engineering with a minor in African American Studies and a language citation in French. She plans to attend medical school after graduation. Outside of school and the office she enjoys cooking, swimming, traveling, and spending time in the outdoors.

Clinical Staff

Kayla was born and raised in rural Kansas. Up until this year, when she made a move to Montana, she has only ever lived in Kansas. Having previously worked in a Cardiology clinic, coming to work for Central Montana Heart and Vascular Institute is a great fit.

She spends her time off playing fetch and traveling with her 3 year old dog, Mavis.

“I’m excited to be a part of a clinic that cares so much about their patients and coworkers.”

Clinical Staff

I have been a CMA since 2018 working in various specialties, including, Family Practice, OBGYN and Pediatrics before coming to Cardiology. I have lived in several states before coming to Montana including Michigan, Wisconsin and Pennsylvania. In my spare time I enjoy reading, spending time with family and friends, hiking and playing with my dogs.