Meet Our Team

Monarch Healthcare is a leader in women’s healthcare. Every day our goal is to administer world-class wellness to women of all ages and stages and in so doing; we aspire toward a new standard in good, wholesome, loving healthcare.

Margaret Huggins MD/OBGYN

Dr. Huggins has been in Idaho Falls since 2004. She fell in love with the area while visiting a friend in Wyoming; immediately she knew Idaho Falls was where she needed to be. Margaret loves her patients and it shows in her interactions with the moms she cares for. She feels especially grateful for the opportunities to provide care for high-risk pregnancies and helping moms and dads starting or adding to their families. Prior to Idaho Falls, Margaret was in private practice in California. Growing up in the south, Margaret completed her residency at Charlotte Memorial Hospital and medical school at the University of Chapel Hill and is a certified OB/GYN with the American Board of Obstetrics Gynecology and a Fellow of the American College of Obstetricians and Gynecologists. Margaret loves spending time with her four children and living life to its fullest.

Chris Allphin MD/OBGYN

Dr. Allphin, a Board Certified OB/GYN, moved to Idaho Falls in the summer of 2013 after completing his residency at Mercy Hospital in St. Louis, Missiouri. During his residency Chris participated in over 1,000 deliveries. Chris considers it an honor and privilege in helping mom’s prepare for and welcome in that “new addition” to their family. Chris speaks fluent Spanish which he feels is a benefit in taking care of a number of his patients. He’s excited to be in Idaho Falls…it’s here that he and his wife went on their first date while they were working in Yellowstone for the summer. He and his wife love spending family time with their four children on the trails of Yellowstone or with a fishing rod in hand.

Luke O’Rourke DO/OBGYN

Dr. Luke O’Rourke comes to us from Eugene, OR, where he practiced for over 7 years, prior to deciding to move with his wife and two children to Idaho Falls.

For the past three years, he has served as Chair of the Department of Obstetrics and Gynecology, as well as, Physician Practice Leader in a large Multi-specialty Practice, Oregon Medical Group. Dr. O’Rourke earned a Medical Degree for the College of Osteopathic Medicine at Des Moines University in Iowa and completed his OB/GYN Residency at Aurora Healthcare in Milwaukee, WI, in 2014.

As an Osteopathic Physician, Dr. O’Rourke uses a holistic approach to patient care, focusing on both the body and mind. Additionally, he has extra training in the musculoskeletal system and has spent several years treating patients utilizing Osteopathic Manipulative Medicine (OMM).

Dr. O’Rourke’s areas of medical interest include high-risk obstetrics and minimally-invasive surgery, including the use of the Intuitive da Vinci Robotic-assisted surgery system.

Dr. O’Rourke specializes in Gynecologic Robotic Surgery and has performed hundreds of highly complex surgeries for conditions such as endometriosis and large uterine fibroids.

Jeremy Whiting MD

Jeremy Whiting, MD, moved to Idaho Falls in 2020 with his family to practice medicine. He was born and raised in California and graduated from Brigham Young University with his bachelor’s degree. He received his medical degree from Texas Tech University Health Sciences Center in Lubbock, TX. He then completed his OB-GYN residency at Reading Hospital-Tower Health in West Reading, PA. He is board certified. He has extensive training in minimally invasive surgical techniques, including robotic and laparoscopic surgery. He enjoys the full spectrum of obstetrics and gynecologic care. During college, Dr. Whiting met his wife, Kristen, who is a native of Idaho Falls. He enjoys spending time with his wife and their four children.

McKenzie Hart PA-C

We’re excited to add McKenzie Hart, PA-C to our provider team at Monarch Healthcare. McKenzie was born and raised in Idaho Falls. She attended Idaho State University for her undergraduate studies, where she graduated magna cum laude with a Bachelor of Science degree in Biology. McKenzie continued her education and graduated in 2018 from Idaho State University with a Master of Science degree, in Physician Assistant Studies. Her previous clinical experience is in family medicine, and her clinical certifications include, the Physician Assistant National Certifying Exam (PANCE), ACLS, and BLS.

McKenzie is looking forward to serving women for a variety of needs, including preventative well-woman health exams, contraceptive counseling, menstrual cycle concerns, pregnancy care, menopause, and more! Her professional goal is to create long-term relationships with patients and to be able to provide women’s healthcare to patients through various stages of their lives.

When out of the office, McKenzie enjoys spending time with her husband and three kids. She enjoys baking, crafting, decorating, and spending time with family and friends. McKenzie is currently accepting patients at 208-535-0440.

Heidi Gregersen FNP-C

Heidi Gregersen is family nurse practitioner who specializes in women’s health. She completed her Bachelor’s in Science at Idaho State University and then earned her Master of Science degree at Walden University and Family Nurse Practitioner degree from Kaplan University. Heidi also taught in the nursing program at Southern Utah University. With over 20 years of registered nursing experience working in labor and delivery, women’s center and in the emergency room in Iowa, Arizona, Utah, and Idaho, Monarch Healthcare is thrilled to add her to our provider team. “I LOVE my job and get so much joy and satisfaction caring for women. I feel so fortunate to be working for Monarch.”
Outside of the office, Heidi and her husband Ryan have four daughters and two stepsons. She is often shuttling kids to gymnastics, softball, baseball, basketball and being their cheerleader. In her free time, she enjoys traveling, gardening, and being outdoors.
Heidi is accepting new patients at both Cortez and John Adams Parkway locations

Cassandra Morris

Cassandra Morris is a Family Nurse Practitioner. She has spent over 20+ years in healthcare. In 2004, she earned her bachelor’s degree in nursing from BYU-Idaho. She then attended graduate school at the University of Utah and became an APRN board certified Family Nurse Practitioner in 2007. She has spent the last 15 years working as a Family Nurse Practitioner specializing in Women’s Health. Cassandra has four children; 3 sons and one daughter. She enjoys hiking, running, camping, going to the beach, watching “chick-flick” movies and spending time with her family. Cassandra enjoys helping women in all stages of life and working to empower them on their path to wellness through preventative care, exercise, nutrition, and medication.

Megan Donnelly Dietician Lactation Consultant

Megan Donnelly, Registered Dietitian

Megan Donnelly is the mother of two beautiful girls. She is a Registered Dietitian, Certified Diabetes Educator, and Lactation Consultant. She received her bachelor’s in psychology from Southern Utah University and then went on to further her education with a degree in Nutrition from the University of Nevada, Las Vegas. After completing her degree, Megan has continued on her journey of nutritional education, with an increasing appreciation for the influence diet and whole-food cooking have on creating optimal health.

She currently works at Monarch Healthcare helping mothers with gestational diabetes and teaches plant-based cooking classes through the company Eat Better Feel Better. She believes optimal health requires more than knowing information about food; it involves building a life focused on nourishing our bodies every day. Megan truly believes that disease starts on a cellular level and if we can feed our cells with the right nutrients we can solve many of the current health crises we face today.

Amber Christensen PA-C

Amber is an Idaho Falls native. She continued her undergraduate degree at Idaho State University where she graduated Magna Cum Laude with a degree in Biology and minor in psychology. Amber went on to attend Physicians Assistant school at Idaho State University and graduated in 2023.
Amber has a special interest in women’s health.
“I’m passionate about mental health-especially women’s. It’s not talked about enough and many women suffer silently without knowing there is help available.”
Outside of the office Amber enjoys going on adventures with her husband, three kiddos, three dogs and learning more about the world around her.
Amber is now seeing patients at our John Adams location. 208-523-8844

Chelsea Brian FNP-C

Chelsea is a family nurse practitioner who specializes in women’s health. She earned her bachelor’s degree in nursing from BYU-Idaho in 2016. She then earned her master’s degree through Walden University where she completed the Family Nurse Practitioner program. Chelsea has spent the last 5 years loving the operating room as a circulating nurse. She grew up with a big, loud family in Portland, Oregon, and loves being outside. She also enjoys playing soccer, skiing, and hiking with her husband and two dogs. Chelsea is excited to join the Monarch team and provide healthcare to women in the area.

Shelley Folsom WHNP-BC and CNM

Shelley graduated from Brigham Young University-Idaho in 2010 with a bachelor’s degree in nursing and worked as a registered nurse for 8 years in Idaho and Utah prior to returning to graduate school. She recently received her master’s degree in nursing from Georgetown University in Women’s Health and Midwifery. She is passionate about women’s health and educating patients so they can make informed decisions about their health. Shelley grew up on a farm in southern Idaho and is excited to be settled in Idaho once again with her husband and daughter. She enjoys spending time with family, dancing, swimming, baking, traveling, crafting, and all things classic Disney.

Contact Us

5 + 14 =

Flexible appointments with 3 Locations to Serve you.

Call —208-535-0440

Better Health Care is Our Mission

cortez office

2990 Cortez Ave.
Idaho Falls, ID
83404
Contact us
208-535-0440
Fax: 208-535-0550

John adams Office 

1660 John Adams Pkwy.
Idaho Falls, ID
83401
Contact us
208-523-8844
Fax: 208-529-8684

Victor Office 

218 Mountainside Blvd #4,
Victor, ID
83455
Contact us
208-535-0440
Fax: 208-535-00550
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