About Us

Tim Gibbs, PT, OCS, Certified MDT, CCTT, CMTPT

Physical Therapist/Partner in the Practice

Clinical Specialties: Vestibular Rehabilitation • TMJ/Headache/Cervical • Orthopaedic PT  • McKenzie Spinal Care • Cert. in Trigger Point Dry Needling


Tim specializes in the treatment of Vestibular, Temporomandibular and Cervical Spine Disorders. Tim completed his degree in Physical Therapy at the University of Michigan in 1984. He is a member of the American Physical Therapy Association (APTA), including the Orthopaedic and Neurology sections. He is a Board Certified Orthopaedic Clinical Specialist (OCS) with extensive training in osteopathic manipulation. He is also certified in the McKenzie Method of Mechanical Diagnosis and Treatment of spinal disorders (Cert. MDT). Tim is an affiliate member of the American Academy of Orofacial Pain (AAOP) and is a Certified Cervical and Temporomandibular Therapist (CCTT). He serves of the board of directors for the Physical Therapy Board of Craniofacial & Cervical Therapeutics. Tim completed three certification programs in Trigger Point Dry Needling and is certified in manual trigger point therapy through Myopain Seminars (CMTPT). He completed the Clinical Competency based Vestibular Rehabilitation Course at Emory University and the Advanced Competency course at Duke University. Tim teaches continuing education courses in the evaluation and treatment of Cervical, Temporomandibular, and Vestibular Disorders. He serves as adjunct faculty at the University of Montana School of Physical Therapy and Rehabilitation Science, where he teaches a course in differential diagnosis and treatment of vestibular and cervical disorders. Tim is a co-owner at Advanced Rehabilitation Services, LLC. He lives in Whitefish with his wife, Jolene, and his three youngest children. When he is not working, teaching or building, he can often be found using his Nordic Walking Poles on a morning walk with his dog.

Brian Miller, PT, MS, OCS, CMTPT

Physical Therapist/Partner in the Practice
Clinical Specialties: Board Certified Orthopaedic Clinical Specialist • Cert. in Trigger Point Dry Needling • Running Form Analysis


Brian is a co-owner and full time physical therapist at Advanced Rehabilitation Services, LLC. After growing up in Potomac, Montana, Brian graduated from Stanford University in 1989 with a degree in Human Biology. He then headed New England to teach at an outdoor education center, then back to the Rockies to guide ski trips in Glacier National Park and hike the Continental Divide from Mexico to Canada. Brian earned his Master of Science degree in Physical Therapy from the University of Montana in 1998 and became a Board Certified Orthopaedic Clinical Specialist in 2009. He became Certified Manual Trigger Point Therapist through Myopain Seminars in 2012 and recently served as President of the Montana Board of Physical Therapy Examiners. He has completed numerous marathons, ultramarathons, multisport and adventure races, which has helped refine his ability to teach running form along with diagnosing and treating running related injuries. He teaches running clinics throughout the year through Run Flathead. He is also a student in the art of balancing family, business, and training demands. Brian lives with his wife, Heidi, and two sons, Reed and Kyle, in Kalispell.

Lynnell Gravelle, PT, CMTPT, Certified LSVT BIG, Rock Steady coach

Physical Therapist
Clinical Specialties: Cert. in Trigger Point Dry Needling • LSVT BIG Program Trained Clinician • Certified Rock Steady Coach


Lynnell was born and raised in the countryside outside of Baltimore , Maryland. She graduated from the University of Maryland School of Physical Therapy in 1993 and has over 20 years of clinical experience. Lynnell spent a few years as a traveling Physical Therapist and relocated to the Flathead Valley after discovering that Montana truly was “The Last Best Place” to live. Lynnell works with all types of Orthopaedic problems and enjoys teaching patients the biomechanics related to their issues so they can better understand how to control their symptoms. She is a Certified Manual Trigger Point Therapist and is excited to witness patients’ rapid improvement using this treatment method. Lynnell is the only Certified LSVT BIG and PWR! A Trained Clinician in the Flathead Valley. She has a special interest in working with individuals with Parkinson’s Disease, MS, and other movement disorders and is very involved in the local Parkinson’s community. She excels at finding creative ways to challenge her patients to improve their function and quality of life. Lynnell lives in Whitefish with her two active children. When not taxiing them to their activities she spends her time enjoying the Montana outdoors.

Doug Snyder, PT, CMTPT

Physical Therapist
Clinical Specialties: Certified in Trigger Point Dry Needling • Manual Therapy • Orthopaedic PT


Doug was born and raised in rural northwest Pennsylvania, where he received his Bachelor of Science in Biology from Grove City College in 1987 and then his Masters in Physical Therapy from Hahnemann University in 1989. He has spent the last 25 years as a manual therapist, working in Sports Medicine and Orthopaedic outpatient clinics. He has lived and worked all over the United States, working in large cities and small rural communities, finally landing in the Flathead Valley in 1997. He has treated thousands of Orthopaedic patients over the years, using a unique hands on approach. He treats each patient as an individual to find out what is at the root of their problem. He has a special penchant for sports medicine and the athletic populations.  Before joining Advanced Rehabilitation Services, he worked at a non-surgical sports medicine and Orthopaedic center in Minnesota, treating high end high school and college athletes. He specializes in treating shoulders, hips, knees, and the overhead athlete. Doug is happy to be back home in Montana, and when not at work can be found skiing, hiking, horseback riding, rafting, mountain biking, fly fishing, hunting, and enjoying all the great outdoors Montana has to offer.

Libby Bergman, PT, DPT, OCS, FAAOMPT, MTC

Physical Therapist
Clinical Specialties: Board Certified Orthopaedic Clinical Specialist • Fellowship trained in Orthopaedic Manual Physical Therapy


Libby specializes in the treatment of Orthopaedic dysfunctions of the spine and extremities. Libby is a graduate of the University of Wisconsin-Madison and completed her Doctor of Physical Therapy at the University of Saint Augustine in 2007. She is a Board Certified Orthopaedic Clinical Specialist, (OCS), a fellow of the American Academy of Orthopaedic Manual Physical Therapy (FAAOMPT) and holds a certification in Manual Therapy (MTC) from the University of Saint Augustine.  Libby is an active APTA member currently serving on the Orthopaedic Section Practice Committee and the Credentialing Services Committee for the American Board of Physical Therapy Residency and Fellowship Education. She recently completed a faculty appointment at the University of Saint Augustine where she developed curriculum and mentored clinicians in the Orthopaedic Residency and Orthopaedic Manual Physical Therapy Fellowship programs. She is currently continuing education faculty for the University of Saint Augustine teaching the E2: Extremity Integration seminar nationally and internationally.  Libby is an active triathlete who has competed in four world championship events including the Ironman World Championships in Kona, Hawaii and the International Triathlon Union Age Group World Championships in Auckland, New Zealand. Libby enjoys spending time with her husband Neiland and two young boys Curren and Naish. She is eager to explore the Flathead region with her family and take up trail running, mountain biking, hiking and skiing after her recent move from Saint Augustine, Florida.

Dianne Miklos, OTR/L, CHT, CLT

Occupational Therapist
Clinical Specialties: Oncology Rehabilitation • Hand and Upper Extremity Disorders • Lymphedema and Edema Management


Dianne specializes in the treatment of disorders associated with Oncology Rehabilitation, Lymphedema and Edema Management and the treatment of Hand and Upper Extremity Disorders.  Dianne completed her Bachelor of Science degree at the University of Puget Sound in Occupational Therapy (OTR/L) followed by pursuing her National/ International Certification in Lymphedema Therapy (CLT) and National Board Certification in Hand and Upper Extremities (CHT).  She is also certified in Oncology Rehabilitation through North American Seminars.  Dianne opened the Hand Therapy and Lymphedema Clinic in 2002, and has been running her successful private practice in Kalispell for the past 15 years.  With a passion for collaboration and patient-centered, specialized care, Dianne now joins Advanced Rehabilitation with the same excitement and enthusiasm she brought to her own clinic, viewing this opportunity as the next big, best chapter in her career.  Dianne lives in Whitefish where she enjoys everything she can outside including hiking, biking, skiing, kayaking, and anything around nature – a daily reminder of all the wonders of Montana, which first brought her here in 1980.

Deb Sullivan, PT, CMTPT

Physical Therapist
Clinical Specialties: Certified in Trigger Point Dry Needling • Manual Therapy


Deb joined Advanced Rehabilitation Services in 2010.  She holds a Bachelor of Science Degree in Physical Therapy from the University of Montana and graduated in 1991.  Deb also works as an EMT with Flathead County Search and Rescue and North Valley Search and Rescue.  She has also worked as a volunteer firefighter with Bad Rock Volunteer Fire Department.

Brianna Irion, PT, DPT

Physical Therapist
Clinical Specialties: Manual Therapy


Brianna was born and raised in Billings, MT. She attended Montana State University where she earned her Bachelor’s degree in Kinesiology. Following graduation from MSU, she was accepted into the Physical Therapy program at the University of Montana and graduated in May of 2018. During her time in Physical Therapy school, she had several clinical experiences, including a Bozeman outpatient clinic where she was exposed to a variety of manual treatment techniques including dry needling. This clinical, along with many other PT school experiences, grew Brianna’s interest for manual therapy. She also has special interests in pelvic floor rehabilitation and running analysis. Being a runner herself, Brianna has participated in one marathon and several half marathons in Montana. When not treating patients, Brianna enjoys running, hiking, skiing, biking, hunting and outdoor recreation in general. She also loves spending time with her family and friends.

Tara Johnston, PT, DPT

Physical Therapist
Clinical Specialties: Women’s Health • Neurology Rehabilitation • Oncology Rehabilitation


Tara was born and raised in Washington State.  She graduated from Eastern Washington University in 2006 with her Doctorate in Physical Therapy.  Tara has spent the last 13 years practicing Physical Therapy in a variety of settings including outpatient orthopedics, outpatient neurology, and acute rehabilitation with the past 10 years of her career at University of Washington in Seattle.  While at UW, Tara built a program for women with high risk pregnancy and postpartum complications while also having 2 kids of her own.  She discovered how under served this population is and her passion for women’s health grew.  She now has a special interest in women’s health and pelvic rehabilitation and is pursing advanced certification through Herman and Wallace Pelvic Rehabilitation Institute.

Tara played collegiate soccer at Eastern Washington University and then went on to explore the limits of her endurance with distance running and Ironman Triathlons.  She is also an avid traveler and soccer fan and has attended 3 World Cups in Africa, Brazil, and Canada.  Tara lives in Whitefish with her husband and 2 young children.  She is committed to lifelong fitness and plans to continue to ski, run, hike, bike and explore the Flathead Valley.

Jolene Gibbs, PT, MS

Practice Administrator


Jolene grew up in northern Michigan and received a Bachelor of Science from Western Michigan University with an emphasis in Biomedical Sciences and Chemistry. She then moved to Montana, where she completed her Master of Science in Physical Therapy from the University of Montana in 2000. She practiced in Billings for a few years before moving to the Flathead Valley in 2002. Jolene stepped into the management role and helped facilitate the opening of the clinic in January 2007, one week before the birth of her first son. Her goal with the company is to help grow a viable company full of experts in physical therapy while serving the needs of the Flathead Valley. Jolene lives in Whitefish with her husband, Tim Gibbs, and three children, Isaac, Andrew and Lauren. When she is not working, she is busy teaching her kids to love the advantages of the beautiful outdoors that the Flathead Valley has to offer.

Jennifer Reynolds

Practice Manager


Jennifer graduated with an Honors BA in Journalism and Business minor in Marketing. She began her career as an account executive at a retail-driven advertising agency focused on point of sale marketing for global consumer packaged goods brands before transitioning into healthcare. Her background includes public relations, business communications, employee relations, graphic design and project management. In the healthcare field, she has worked in a variety of operational roles in the assisted living, hospital and outpatient clinic settings. Jennifer is an active member of the Medical Group Management Association (MGMA). Her current role encompasses contracting, insurance claims processing, patient account and billing questions and driving overall clinic operational goals. Jennifer is an avid fitness enthusiast, enjoys traveling the west and spending time in the great outdoors.