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Meet Our Team

The Montana Center

Interventional Pain Management

Camden Kneeland, MDCamden Kneeland, MD, is on the medical staff of Kalispell Regional Healthcare and serves as medical director at The Montana Center for Wellness & Pain Management. He is board certified in both anesthesiology and pain medicine. His fellowship training and current practice focus on treating hundreds of painful conditions while minimizing the use of habit-forming medications. Dr. Kneeland was born and raised in Oklahoma where he completed his undergraduate education with a summa cum laude degree in microbiology from the University of Oklahoma. From there, he earned his medical doctorate at the University of Oklahoma College of Medicine. Dr. Kneeland was chosen as chief resident and completed his residency in anesthesiology in Boston. Following his residency, he was chosen for one of the most prestigious pain management fellowships, the International Pain Institute of Texas Tech University. There, he worked under the tutelage of Dr. Gabor Racz, one of the most accomplished and respected interventional pain management physicians in the world.

An avid alpine skier, fisherman and sailor, Dr. Kneeland enjoys the Flathead Valley with his wife and two young children.

Medical Pain Management

Brenda Anderson, PA-CBrenda Anderson, PA-C, was raised on a small farm and ranch in Granville, North Dakota. After graduating from Granville High School, she joined the Army National Guard to help pay for college. She was a pharmacy technician, a medic, a medical supply specialist and a transportation movement coordinator during the 14 years she served in the military. She earned her bachelor's in psychology. She attended physician assistant school at Idaho State University, where she earned her Master of Physician Assistant Studies degree. She is certified through the National Commission on Certification of Physician Assistants. She serves as the Montana Academy of Physician Assistants Secretary and also volunteers for Coats for Kids.

Brenda is married to Dan Anderson. She enjoys spending time with family and friends. Brenda truly appreciates the outdoors, spending her free time boating, hiking, biking, kayaking and hunting in the summer and fall. During the winter months she enjoys snowshoeing and skiing (cross-country, downhill, backcountry and skate skiing). She also loves yoga, cooking and curling up with a good book.

Eric Belanger, PA-CEric Belanger, PA-C, joined Northwest Orthopedics & Sports Medicine in May 2013, bringing with him several years of experience with comprehensive orthopedic patient care, before later joining The Montana Center for Wellness & Pain Management. Eric earned his undergraduate degree in biomedical sciences with neuroscience research from Montana State University in Bozeman, then completed his master’s degree in physician assistant studies at Idaho State University. He came to Kalispell Regional Healthcare from the Orthopaedic Specialty Clinic of Spokane, where he had practiced since 2007. He is a fellow of the American Academy of Physician Assistants and its Washington affiliate, as well as Physician Assistants in Orthopaedic Surgery.

Jennifer Jamrog, DOJennifer Jamrog, DO, joined the Kalispell Regional Healthcare family in July 2017 as a physician specializing in pain management at The Montana Center for Wellness & Pain Management. She graduated from the West Virginia School of Osteopathic Medicine and completed her internship at St. Petersburg General Hospital in Florida. She completed her residency in neuromusculoskeletal medicine and osteopathic manipulative medicine in Fort Worth at the University of North Texas Health Science Center, where she was an adjunct professor in the Department of Family Medicine before moving to Montana. Dr. Jamrog believes that the body has self-healing capabilities, its structure and function are interrelated, and in order to achieve optimal health, it is important to incorporate the physical body, mind and spiritual health into a patient’s care. In addition to traditional pain management, she uses osteopathic manipulative treatment (OMT), which is hands-on care that can help the body restore normal function. She uses her hands to diagnose and treat using various modalities that can address the musculoskeletal system, lymphatic system, nervous system, cardiovascular system, respiratory system and gastrointestinal system. OMT can help many different patient populations with many different conditions. OMT can be gentle enough to treat a newborn baby or an acutely ill patient in the hospital and can also be strong enough to treat an elite athlete. OMT is often used to soften and relax various soft tissues, improve anatomical symmetry in the body, and even tone/tension and pliability within ligaments and tendons. In addition, it can improve removal of metabolic waste and supports the body’s natural healing ability. Dr. Jamrog plans to offer regenerative medicine to her patients at The Montana Center with ultrasound guided injections using prolotherapy and platelet-rich plasma.

Having lived in Colorado for six years, Dr. Jamrog appreciates all the outdoor activities that living in a mountain town has to offer. She enjoys hiking, mountain biking, skiing, snowboarding and yoga.

Kelly Walker, DNP, FNP-CKelly Walker, DNP, FNP-C, joined the Kalispell Regional Healthcare family in August 2017. She is a Kalispell native, graduating from Flathead High School in 1987. She earned a bachelor’s in English literature and nursing from Montana State University in Bozeman and a doctorate in nursing practice (DNP) from Rocky Mountain University in Provo, Utah. Dr. Walker's experience includes pain management as well as cardiology and family practice medicine.

Dr. Walker enjoys spending family time with her husband, Craig, and five children outdoors and playing music. She enjoys writing and has several published works, including a novel and several research articles.

Matt Zemacke, PA-CMatt Zemacke, PA-C, was born in Coatesville, Pennsylvania, and was raised in a suburb of Philadelphia most of his life. He attended Pensacola Christian College in Pensacola, Florida, where he received his bachelor's degree in pre-med. He was then accepted to Hahnemann University in Philadelphia, where he received a master’s degree in physician assistant studies.

He is married and has two daughters. He considers himself a family man and loves spending time with his wife and children. His hobbies are backpacking in the summer, running all year long, stargazing, playing chess and playing guitar. He loves his patients and wants to make a difference in their lives.

Addiction Medicine

Robert Cale, MDRobert Cale, MD, was born and raised in Alabama. He graduated from Birmingham-Southern College in Birmingham, Alabama, in 1970 with a Bachelor of Science in biology. During his senior year, he was tapped for the Omicron Delta Kappa honor/scholastic fraternity. Dr. Cale graduated from the University of Alabama at Birmingham School of Medicine in January 1974. He was one of the first residents in the newly founded family practice residency program, in association with the University of Alabama in Huntsville. During 1979, Dr. Cale served as emergency room physician at what was at that time called Beekman Downtown Hospital in New York City. He completed his family practice residency in January 1977 and earned his board certification in family practice in 1980. Dr. Cale practiced emergency medicine, primary care and telemedicine in numerous hospital emergency departments in north Alabama, southeast Texas and Montana. Currently, Dr. Cale is certified as a diplomate of family medicine by the National Board of Physicians and Surgeons. Additionally, Dr. Cale is certified to prescribe buprenorphine (Suboxone) for the treatment of opioid use disorder.

Dr. Cale and his wife, Lynn, have three children and one granddaughter. Having moved to Whitefish in 2006, the Cale family members are proud to live in the Last Best Place.


Kelly Brewer, LCSWKelly Brewer, LCSW, is a licensed clinical social worker and obtained a master’s degree from Temple University in Pennsylvania. She has a passion for working with all ages, supporting people to be their best and to help them recognize options they have in their lives. While Kelly spent most of her life in Pennsylvania, she has called Montana home since 2006. Kelly enjoys spending time with her family, most often in the great outdoors exploring via biking, hiking or skiing. When not in the woods, she enjoys indulging in her love for cooking or curling up with a good book. When it comes to pain management, Kelly feels especially honored to work with the patients at The Montana Center, feeling humbled by their courage and inspired by their will. She is often reminded that our most challenging times are the best opportunities for transformation and growth.

Stephanie Cymbal, LCSWStephanie Cymbal, LCSW, originally hails from Brooklyn, New York, where she worked as a therapist specializing in hoarding. Stephanie is a licensed clinical social worker who moved to the valley in 2007. She joins our team after working as the oncology counselor for the cancer program the past three years, providing therapy for cancer patients and their families. Stephanie received her bachelor's in psychology from State University of New York at Albany and received her master's in social work from the University of Montana.

Stephanie and her husband have twins, and they enjoy the challenges of being first-time parents. In her “spare” time, she enjoys watching foreign films, reading chick lit and parenting books, and playing fetch with her two dogs.

Dan Gregerson, LCPCDan Gregerson, LCPC, is a licensed clinical professional counselor who has worked in a variety of clinical settings in the Flathead Valley since 1997, primarily in private practice. For nearly five years, Dan has been a part of The Montana Center for Wellness & Pain Management, helping people with chronic pain through teaching pain management skills such as deep breathing, relaxation techniques and self-hypnosis, as well as working with people to overcome the depression and anxiety that often accompany chronic pain. Dan’s work is focused on providing a new perspective to allow people with chronic pain to improve functioning and to discover contentment and meaning within the context of their condition. Dan received his Bachelor of Arts in anthropology from Pacific Lutheran University, his Master of Divinity from Wartburg Theological Seminary and his Master of Counseling from Montana State University. In his spare time, he enjoys woodworking, reading, experiencing self-renewal through solo backpacking in the Montana wilderness and, together with his wife, Patti, taking care of a menagerie of pets (dogs, cats, chickens, goats and alpacas).

Chris Nadasi, PhDChris Nadasi, PhD, is The Montana Center's clinical psychologist, offering psychological services to our patients since 2010. In addition to providing psychological evaluations and psychotherapy services, Dr. Nadasi heads the EMPOWER program, assisting patients in establishing a personalized care plan as they enter our clinic. Dr. Nadasi grew up near Dayton, Ohio, attending the University of Toledo for his undergraduate education in psychology. Graduate school provided an opportunity to move to Montana in 1992. At the University of Montana, he completed requirements for a master’s degree and doctorate in clinical psychology, as well as an education specialist degree in the School of Psychology. Dr. Nadasi has been licensed to practice independently since 2001. Before joining the staff of The Montana Center, Dr. Nadasi offered psychological services to adults and children through his private practice and through several agencies in the Flathead Valley. Dr. Nadasi shares his commitment to improving the lives of others through compassionate and skillful psychological services and through a deep understanding of people. Dr. Nadasi lives in Kalispell with his two children, Logan and Sophie. The family enjoys a variety of outdoor pastimes including climbing, hiking, rafting and caving.

Tim Corson, Psy.D. is a Clinical Psychologist at The Montana Center, offering psychological services to our patients.  Dr. Corson grew up near Ann Arbor, Michigan attending the University of Wisconsin – Madison for his undergraduate education in Psychology and Social Welfare.  Dr. Corson attended graduate school at the California School of Professional Psychology in Los Angeles, California.  He graduated in 1996 with a Doctor of Psychology degree in Clinical Psychology.  Dr. Corson completed two prestigious postdoctoral fellowship programs at Reiss-Davis Child Study Center in Los Angeles and Judge Baker Children’s Center in Boston, MA.  Dr. Corson has been licensed to practice psychology since 1998 and in Montana since 2004.  Before joining The Montana Center, Dr. Corson worked for two different therapeutic boarding schools and launched an independent private practice in the Flathead Valley.  Dr. Corson brings over 30 years of mental health experience in assisting people to face their struggles and adversities with empathic, direct and genuine relational care.  
Dr. Corson lives in Whitefish with his wife and two children, Cody and Sienna.  The family enjoys skiing, rafting, camping, hiking and all the other outdoor adventures the Flathead offers.



Lon Savik, DCLon Savik, DC, was born and raised in Kalispell, Montana. He was a graduate of Flathead High School with a track scholarship to Montana State University. In the early 1990s moderate low-back injuries sent him to the chiropractor. After having a successful experience with chiropractic care himself, he returned to school at the University of Montana to fulfill his prerequisites before attending and graduating from Palmer West Chiropractic College.

His love for the Flathead Valley brought him back to enjoy all the valley has to offer, along with his wife, Debbie, and their four children.


Justin Green, LAcJustin Green, LAc, grew up traveling around the country and competing in worldwide BMX bicycle racing, holding two world titles and many national titles over the years. That level of competition took its toll on his body and left him with two ACL repairs to his knees and many other injuries with subsequent chronic pain. That's when he decided to study acupuncture, which he has been practicing for more than a decade. He graduated from Southwestern Acupuncture College with a master's in Oriental medicine. Prior to acupuncture school, Justin completed his bachelor's degree at the University of California, Santa Cruz.

He and his family like to be active, training in jiu-jitsu, snowboarding, camping and, weather permitting, spending as much time in the water as possible.

Massage Therapy

Diana Stephens, MTDiana Stephens, MT, has been a practitioner at The Montana Center for Wellness & Pain Management since the spring of 2010. Diana began studying herbal medicine and alternative health practices in the 1980s and it has always been at the foundation of her life choices. In early 2003 she started to pursue bodywork. Diana attended Good Medicine Massage School in Whitefish and graduated in 2005, passing her national certification that same year. She worked as a massage therapist for a local resort for the first year, and eventually purchased the contract and provided massage for the resort for several years. Diana’s independent studies include Thai massage, trigger point, cranial sacral and Trager techniques. She completed her master level Reiki in 2009. She earned her medical massage practitioner certification in 2014.

She enjoys all the Flathead has to offer, including skiing, hiking, paddle boarding, camping, rafting and just about anything that’s outdoors.