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 diagnostic and treatment technology to treat musculoskeletal injury and pain better. 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 techniques. 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.

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 of Science in Genetics and Neuroscience before he attended the University of Minnesota Medical School, where he received his MD. After medical school, he spent his Intern year training at Broadlawns Medical Center in Des Moines, Iowa. After his Intern year, he spent the next three 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 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.

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.

Brany Guevara, DNP, FNP-BC, is originally from Bucaramanga, Colombia; Brany has called St. Cloud, Minnesota, home for the past two decades.
Her career path has been shaped by invaluable experiences in Emergency Level I-II Trauma Centers, working alongside top-tier providers. The disruption caused by the COVID-19 pandemic led Brany to pivot into Aesthetic Medicine, altering her perspective and professional aspirations. After graduating from The College of Saint Scholastica with a specialization in Family Nursing, Brany joined Molina Health in Utah as a Family Nurse Practitioner. Her recent roles in rural clinics with the Mille Lacs Health System have broadened her expertise in areas such as Functional Medicine, Thyroid optimization, Men’s Health and Testosterone, and Women’s Health and Hormone Replacement Therapy.

Brany strongly advocates for an integrative approach, merging functional, regenerative, and conventional medicine to offer comprehensive care. Her holistic method involves identifying the root causes of health issues to promote overall well-being, aiming to enhance both internal wellness and external confidence. To bolster her skills, Brany has dedicated significant time to advanced training and certification in cutting-edge medical aesthetic procedures, spanning from Botulinum neurotoxin injections and fillers to PDO threads, non-surgical hair restoration, PRP/PRF, microneedling, and skin tightening. Her expertise in hormone optimization and weight loss strategies enables her to provide holistic care.

Valerie Carlson is a certified nurse practitioner interested in improving her patients’ quality of life through functional medicine. Valerie has over two decades of nursing experience and obtained her Bachelor’s and Master’s degrees in 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, and 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 nearly 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 and fatigue and those who want 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.

Rebecca graduated from Walden University, Minneapolis, MN, with a Master’s degree as an Adult and Geriatric Nurse Practitioner. She received a Bachelor of Science in Nursing and Public Health Nurse degree from MSU – Moorhead, MN, and went to CLC in Brainerd, MN, where she received her Registered Nursing Degree. Rebecca is from Pillager, MN where she lives with her significant other and three children. She has worked as an RN for ten years in a variety of settings, including long-term care, memory care, medical and surgical units in a hospital, and as a director of nursing for assisted living and memory care. Hobbies include traveling, camping, attending her children’s sporting, theatrical, and musical events, gardening, canning, and spending time with her cat, dogs, family, and friends. Rebecca is passionate about the health and well-being of her patients and hopes to help them achieve optimal health by achieving physical, mental, and spiritual health.

Meredith studied at the Salon Professional Academy in Fargo, North Dakota, where she earned her license in Aesthetics.  She pursued her career in aesthetics for four years in Fargo, specializing in medical aesthetic treatments.  She then moved to St. Cloud and obtained her dual licensure in Minnesota.  When Meredith isn’t seeing patients here at Rejuv, she can be found enjoying time with family, taking in the outdoors, and traveling with her husband, Jon.  

Brittney received her undergraduate degree from the College of St. Benedict, majoring in Psychology with a minor in Sports Medicine. She earned her Doctor of Physical Therapy degree from St. Catherine University. After graduation, she worked in Duluth, MN, at Essential Health-West Duluth Clinic. After moving to the Twin Cities, she graduated from the Fairview Sports Physical Therapy Residency Program. Upon graduation, she treated patients at the University Orthopedics Therapy Center in Minneapolis, specializing 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.

Jake received his undergraduate degree from Misericordia University in Dallas, PA, majoring in Business Administration Sports Management Relations. He earned his Doctor of Physical Therapy degree from Misericordia University. Following graduation, Jake worked as a traveling physical therapist in many settings across the country, focusing on youth, HS, and collegiate athletes. He completed his continuing education in Dry-needling and Prescription Barbell Strength Coaching. In 2023, Jake was accepted to the University of North Dakota, where he completed his Sports Certified Specialist training and had a focus on D1 collegiate athletes in various sports.  He joined Rejuv Medical in Waite Park, MN, since moving back to the Otsego area in 2024, where he is studying to complete and pass his SCS certification. Jake’s passion is helping athletes return to their sports with the strength and confidence they had before injury. 

Angie is a Licensed Physical Therapist Assistant and received her Physical Therapist Assistant degree from Anoka-Ramsey Community College in 2014. She has been working at Rejuv Medical ever since.  Angie is trained in all types of patients but has a special interest in dancers, swimmers, and pediatrics because she was a dancer and swimmer throughout her life. She has also been trained in kinesio-taping, which she utilizes with many patients. Angie loves the connections she makes with patients every day and watching them better themselves.

Outside of Rejuv, Angie is a wife, a mom of 3, and a dog mom. She also has been a dance teacher/coach for the last 14+ years. She enjoys spending time with her family, being outside or at the beach, and making people laugh.

Nick graduated from St. Cloud State University with a Bachelor of Science in Recreation and Sports Management. During that time, Nick was a student assistant coach with the women’s basketball team at SCSU. Upon graduation, Nick worked with local high schools and community education programs in coaching and coordinating events in Minnesota.

Nick returned to school and completed the St. Catherine University’s Physical Therapist Assistant Associate’s Degree in Minneapolis/St. Paul. Following this, Nick worked at an outpatient clinic in Sartell before accepting a job offer with Rejuv Medical and has been here since 2019.

You can often find Nick and his wife, Laura, within the community, spending time with family and friends. Nick is passionate about basketball, bowling, hunting, and bettering his patients in an integrated healthcare approach. In the future, he hopes to continue his education and complete his Doctor of Physical Therapy to be a better advocate for his current and future patients.

I have lived in the fitness industry for about 25 years. I am a California native and got my start first as a Lifeguard/Swim Instructor & Water Fitness Instructor for the US Navy as a DoD civilian then eventually took on the role as the command MWR Fitness Coordinator at Naval Air Station Lemoore. As fitness evolved in that time, I did too. In addition to personal training, my passion lays in Function Fitness, Metabolic Conditioning, Olympic Weightlifting and Powerlifting but, I can also teach just about anything from Aqua Fitness to Yoga for Athletes. I truly enjoy helping my clients and athletes become a better version of themselves and educate the importance of functional training and maintaining a well-rounded quality of life, mind-body-soul. I also really enjoy coaching competitive functional fitness and weightlifting for those who still have something to prove! In my spare time, I will still occasionally compete in local CrossFit throwdowns, I enjoy drawing, painting and Japanese Stab-binding books. I also enjoy spending time with my family listening to music and going to concerts, watching movies, traveling and GLAMPing. I also enjoy craft beer, good wine and consider myself a major foodie, in moderation of course!

Hi, my name is Menley. You can catch me teaching classes on some Saturday mornings, every Tuesday and Wednesday evening or around the gym working out. I am a certified personal trainer that specializes in group fitness. Prior to gaining my certification, working out was always a part of my daily life back when I started competitive swimming, track, and different styles of yoga in High School. Once I went off to college, I really enjoyed CrossFit which led me to gaining my personal training certificate.  I also have a Bachelor of Science in Community Health. The last 3 years I have been working in the Functional Medicine department here at Rejuv being a Physician Extender along with teaching classes up until I had my twin girls in October 2023. Now I enjoy teaching classes and being a stay-at-home mom to my two girls. I truly enjoy teaching each person who walks into my class and my goal is to help clients create a practice that is not only sustainable but fulfilling. 

I have been part of the fitness industry since 2006. My history includes coaching/instructing aerobics, strength classes, bootcamps, circuit style classes, along with HIIT and Heart Rate Based Training. Group fitness is where it’s at – fun, accountability, relationships and more fun as we build strength, endurance and power and become strong together. 

I’ve been an athlete since the age of 3 when I first learned how to skate. I played hockey through high school as well as football and baseball. I continued my baseball career through my college years and continue to coach now. The fitness world has recently become somewhere I’m comfortable over the last couple of years and I’ve loved every step. Bringing my coaching mindset to fitness has been a smooth transition and I find immense joy in helping people do things they never thought they could. Strength training is something I’m passionate about and I believe everybody of every age is capable of lifting weights! I love lifting weights and coaching baseball but more importantly- spending time with my wife and 8-month-old son! Being a dad is my favorite job, but personal trainer and coach is a close 2nd!!