About Us

Meet Our Team
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Since 2010

Our Motto | Mission Statement | Core Values


Innovation | Integration | Optimization

Mission Statement

Restoring Health Worldwide

Core Values

To restore the body through evidence based treatments and reverse the impact of disease and degeneration.  Our attitude, behavior and decisions are guided by our Core Values and faith based morals.  TEAM REJUV.

Virtuous: We check our egos at the door, we are humble and loyal to each other as we listen and create a unified synergy with patients and our team.
Brilliant: We are unique pioneers. We are growth minded and strive for excellence.
Results: We are here to change healthcare by restoring health and vitality in our patients.

Patients Treated

Regenerative Treatments


Our team

Our Team

Medical Providers


Joel Baumgartner, MD & CAQ Sports Medicine

Board Certified in Family Medicine & Non-Surgical Orthopedics & Sports Medicine

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Dr. Joel Baumgartner is a board certified physician with a specialized fellowship in non-surgical orthopedics and sports medicine. He earned his medical degree from the University of North Dakota School of Medicine, and completed his family practice residency at the University of North Dakota. Dr. Baumgartner completed his advanced training in sports medicine with a fellowship in primary care sports medicine at Hennepin County Medical Center. He utilizes the latest in diagnostic and treatment technology to better treat musculoskeletal injury and pain. As an international speaker, he instructs both physicians and those in the medical industry on pain evaluation, diagnosis and the latest treatment options. Dr. Baumgartner has authored a book on Prolotherapy and PRP technique, He is also a contributing author on the subject of pain management for a variety of other popular publications. His family and faith remain his priority.


Matthew J. Janzen, MD

Interventional Pain Management

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Dr. Matthew Janzen is a Physical Medicine and Rehabilitation physician specializing in pain management. Dr. Janzen began his medical journey at the University of Minnesota where he obtained his Bachelor’s of Science in Genetics and Neuroscience before he attended the University of Minnesota Medical School where he received his MD. He spent his Intern year after medical school training at Broadlawns Medical Center in Des Moines, Iowa. After his Intern year, he spent the next 3 years completing his Physical Medicine and Rehabilitation residency at Tufts Medical Center in Boston, Massachusetts. Following residency, he completed an Interventional Pain Management fellowship at Deuk Spine Institute in Melbourne, Florida. Dr. Janzen’s skills include: pain management, peripheral nerve blocks, joint injections, and all types of therapeutic and diagnostic spinal injections. He believes in taking a patient centered, multidisciplinary approach to optimize patients’ health and quality of life. Dr. Janzen is a Minnesota native whose family and friends are what drew him back from the east coast. Dr. Janzen loves all water sports in the summertime, alpine skiing in the winter, and traveling to new places in between. 

Heidi Robertson, MD

Regenerative Medicine Specialist & Anesthesiologist Specialist

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Doctor Heidi Robertson’s love for helping started in high school after participating in a mission trip. Dr. Robertson began her medical training in southern California where she graduated with her medical degree at Loma Linda Medical University in 2002. She trained at the renowned Loma Linda Medical Center for Anesthesiology, graduating in 2007 and was board certified in 2008. In 2012 Dr. Robertson began to feel a pull toward regenerative medicine. She realized the hope that could bring many patients by using prolotherapy. Doctor Robertson has always believed that bringing hope and healing to patients, is one of the greatest privileges she can have in this life. Watching patients with chronic pain even after many surgeries prompted her to research the possibilities of reversing or curing such pain. She completed the extensive Hackett-Hemwall training for prolotherapy in Honduras in 2013 and again in 2014. She also completed the American Academy of Orthopedic Medicine prolotherapy workshop in Peru in 2014. Not only does Dr. Robertson have the training and expertise to treat your pain, she has superb bedside manor and a genuine love for medicine. Dr Robertson’s skills include pain management, spinal and epidural blocks, peripheral nerve blocks, and prolotherapy.


James Baumgartner, MD

Board Certified in Internal Medicine

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Dr. Baumgartner is a board certified Internal Medicine doctor with over 30 years of experience and 10 of those years in the St. Cloud area at the former Allina Medical Clinic. If you’re looking for a new Primary Care physician or have Urgent Care needs or suffering from issues with sleep, headaches, obesity/weight management, skin irritations, mental health, wellness, disease prevention/management, or other ailments, Dr. James Baumgartner is here to help. He takes a personalized care approach that is essential for best outcomes. Dr. Baumgartner will also be working with our talented and passionate Nurse Practitioners, Health Coaches and Medical Fitness Specialists at restoring your health.


Michelle Dahlberg, PA-C

Certified Physician Assistant

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Michelle is very excited to join the Rejuv family in making innovative strides in healthcare. She has always been interested in sports medicine, as she was an Athletic Trainer for 10 years before becoming a Physician Assistant in 1999. Having earned her Bachelor of Science in Athletic Training and Psychology at South Dakota State University, she then earned a MA degree in Injury Aspects of Sports Psychology (Kinesiology) at the University of Minnesota, where she also worked for the Gopher Women’s Athletic Department. After working in Athletic Training at Slippery Rock University for 2 years in Pennsylvania, she then attended Augsburg College where she earned her Physician Assistant Certification. For the past 20 years she has lived in Little Falls, rounding out her medical experiences in both surgical orthopedics and in family practice as a Board Certified Physician Assistant. She is now excited to help her Rejuv patients manage their total healthcare needs in ways that fits their personal wellness goals.
Michelle is an avid recreational and fitness fan. She has run many triathlons and half marathons, but finds outdoor recreation her true passion. She loves to travel in search of find new locations to bike, hike, kayak, canoe or ski with her friends and family.

Her most important and loved job, however, is being an mom and wife. Together with her husband Doug, they carefully monitor their ever-changing calendar, provide taxi services and are a constant presence in the stands for their four kids sports, music and church activities.


Valerie Carlson, RN, CNP

Certified Functional Medicine Provider

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Valerie Carlson is a certified nurse practitioner who is interested in improving quality of life for her patients’ through functional medicine. Valerie has over two decades of nursing experience, and obtained her Bachelor and Master’s degrees of science in nursing at Mankato State University. Valerie has been an active member in her community leading groups such as Campfire Boys and Girls, reading groups for elementary school students, chaperoning youth mission trips to Maine and Arkansas. She also chaperoned youth trips to Long Lake Conservation Center and Wolf Ridge Conservation Center. She participated in the M.S. tram Minnesota, biking 300 miles in 5 days. Valerie Carlson’s background includes geriatric nursing, telemetry and ICU RN experience. She spent close to a decade as a nurse practitioner in cardiology, specializing in cholesterol, and primary and secondary cardiovascular prevention. She brings this previous knowledge and experience to Rejuv medical to enrich her functional medicine practice. At Rejuv Valerie Carlson sees patients for hormonal balancing, fatigue, and those who would like to improve their health with weight loss. Valerie sees patients who struggle primarily with:
• Chronic stress and stress-related health problems
• Fatigue or Lack of Energy
• Muscle and Joint Pain or Weakness
• Blood Sugar Dysregulation
• Osteopenia or Osteoporosis
• Insomnia, sleep disturbances or difficulty waking
• Poor memory or difficulty retaining information
• Irritability or Mood Swings
• Hypertension
• Increased waist-to-hip ratio or abdominal obesity
• Anxiety or depression
• Menstrual Disorders
• Postmenopausal Symptoms

In addition to hormone and adrenal function, she also assists patients with Weight loss Physicals or Prescreening.

Paige D

Paige Deters, PA-C

Certified Physician Assistant

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Paige received her Physician Assistant Certification through Bethel University, MN. What brought her interest to Functional Medicine is the patient-centered care that integrates physical, spiritual, mental, and emotional health while incorporating the importance of lifestyle. She enjoys working with individuals of all ages, helping them reach their goals by providing the necessary care, education and resources. She grew up in the Swanville and Little Falls area and now lives in Rice with her husband, Andrew. She has been a competitive athlete through college and is active in softball, basketball, and outdoor activities. With her family and friends, she enjoys hunting, cross country skiing, and traveling to explore, backpack, and volunteer through mission work. Other hobbies include wood working, camping, strength and resistance training, and cooking.


Terrence Keller, PA-C

Certified Physician Assistant

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Optimizing patient health and functionality through an integrated approach is what really drew Terrence to Rejuv Medical. Originally from North Dakota, Terrence completed Bachelor’s degrees in Athletic Training and Exercise Science at Minnesota State University Moorhead. While working for 7 years as an athletic trainer and sports specialist, he pursued a Master’s degree in Physician Assistant Studies at Augsburg College in Minneapolis.

He worked the past 5+ years in an acute care setting in Fergus Falls, MN. While enjoying seeing patients in this capacity, he knew there was something missing. With the orthopedic background, he has always kept this field in the back of his mind. “I cannot believe how lucky I was to find an organization at the cutting edge of technology while improving healthcare from its source, the patient.” He is looking forward to working with patients to Rejuvenate their health.

Terrence loves spending time with his family. He is married with two children and several pets. They enjoy living life spontaneously to take in all the beauty this world has to offer. He is also a functional fitness enthusiast, learning the capabilities of his body while optimizing his nutrition and workload.


Melissa Mangan, RN, NP

Functional Medicine Nurse Practitioner

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Melissa is a Minnesota-native nurse practitioner specializing in functional medicine. She grew up in Little Falls, MN, where she discovered a passion for competitive endurance sports and health. Melissa pursued her nursing degree from the College of St. Scholastica in Duluth, MN, where she competed in collegiate cross country running, XC skiing, and track. She worked in the pediatric intensive care unit at Children’s Minnesota and pediatric/adult perianesthesia at M Health Masonic Children’s Hospital prior to obtaining her Master of Nursing at Concordia University Wisconsin.

Melissa’s passion lies in treating the cause rather than the effect of disease to optimize a patient’s hormonal and metabolic states. She examines each patient’s unique genetic influences and environmental factors when incorporating diet, lifestyle, and psychosocial health into her practice. Her goal is to help patients find the root cause of their medical concerns rather than using suppressive treatments to mask symptoms. Melissa believes that treating the whole person, identifying underlying issues that influence healing, and promoting a healthy lifestyle are imperative to restore the body and reverse disease.

Melissa loves Minnesota for its seasons and enjoy cross country skiing, biking, and running, especially racing the marathon distance. Together with her husband, they love traveling to new sites for hiking, racing, and exploring. They have an energetic dog who enjoys the same hobbies they do. They enjoy the north shore for its access to outdoor recreation.

Particular areas of interest: cardiometabolic dysfunction, thyroid disorders, autoimmune disease, small intestinal bacterial overgrowth, and hormonal imbalances.

Symptoms: fatigue, bloating, headaches, brain fog, joint pain, constipation, diarrhea, body aches, sleep issues, weight gain or weight loss, worsening of chronic conditions.

Physical Therapy 


Brittney Braegelmann, DPT, SCS

Board Certified Sports Physical Therapist & Department Manager

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Brittney received her undergraduate degree from the College of St. Benedict, majoring in Psychology with a Sports Medicine minor. She earned her Doctor of Physical Therapy degree from St. Catherine University. She worked in Duluth, MN after graduation at Essential Health-West Duluth Clinic. After moving to the Twin Cities, she graduated from the Fairview Sports Physical Therapy Residency Program and upon graduation, she treated patients at University Orthopedics Therapy Center in Minneapolis, where she specialized in the Throwing and Next Step Programs. She obtained her Physical Therapy Sports Clinical Specialist Certification in 2013. She has worked at Rejuv Medical in Waite Park, MN since moving back to the St. Cloud area.


Nick S., PT, DPT

Physical Therapist


Nick W., PTA

Physical Therapy Assistant


Ashley S., PTA

Physical Therapy Assistant


Angie J., PTA

Physical Therapy Assistant

Rejuv Fitness


Christine B.

Medical Weight Loss Program Manager


Shanna G.

Fitness Manager


Jake H.

Integration Specialist Manager


Kim S.

Medical Fitness Specialist


Gemma L.

Medical Fitness Specialist


Trevor Z.

Medical Fitness Specialist


Aimey N.

Studio Instructor


Kristen B.

Medical Fitness Specialist



Medical Fitness Specialist

Jay Grove

Jay G.

Medical Fitness Specialist

Sara Kohn

Sara K.

Medical Fitness Specialist

Executive Team


Joel Baumgartner, MD

Founder & Chief Executive Officer


Garrett Ewers

Chief Operating Officer and Vice-President

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