Chief Cook + Bottle Washer


Libby Pettit


Libby Pettit grew up in Basalt, graduating from Basalt High School in 1980.  Attending the Colorado College and transferring to University of Colorado, Boulder, Libby graduated with a BA in Anthropology/emphasis in Ethnohistory of the American Southwest and a BS in PE/ Exercise Science.  Libby received her BSPT from the University of Colorado Health Science Center in 1988 and worked in neurologic rehabilitation for 2 years, and then opened Midvalley SportsMedicine in Basalt in 1990,
re-incorporating to Roaring Fork Physical Therapy in 1992.  Libby returned to Regis University and received her Doctorate in Physical Therapy in 2005.


Libby has an extensive post-graduate education, focusing on manual care with joint mobilization and soft tissue mobilization in orthopedics.  Libby is a certified Kinesio Tape practitioner and is Level I certified in Functional Dry Needling through Kinetacore.  Libby has taken a number of courses in ergonomics and works closely with Valley businesses for ergonomic education, evaluation and management.  Libby is a participating member of the American Physical Therapy Association, as well as the American College of Sportsmedicine.  


Libby has a wonderful son, is involved in the community, and can be found skiing, hiking or biking in the high country almost every day!



Karen Stevenson, MSPT, CMT


Karen received her Master’s Degree in Physical Therapy from the University of Colorado Health Science Center.  An Aspen native, she has been a clinical physical therapist at Roaring Fork Physical Therapy for 10 years focusing on orthopedic injury and rehabilitation and manual therapy.


William Blaney, PT


Will has been a resident of the Roaring Fork Valley for 25 years having previously lived in Pennsylvania, Rhode Island, Southern California, The Netherlands and North Lake Tahoe.  His association with Roaring Fork Physical Therapy is longer than 10 years and he has specialized in orthopedics.  Will graduated from the Hogeschool Enschede, Academie of Fisiotherapie in the Netherlands.  American made and Dutch trained.  He has been an enrolled agent, waiter and children’s ski instructor prior to engaging in physical therapy and he enjoys traveling overseas, snowshoeing and skiing.


Brenda Grumley, Practice Administrator


Brenda has lived in the Roaring Fork Valley for over 40 years, a true valley native.  She graduated from Basalt High School  followed by Mesa State College.  She has worked for Roaring Fork Physical Therapy since 1991 and truly loves her job.  She earned a special certification from the American Physical Therapy Association, Certified Private Practice Administrator, which designates her competency in the area of private practice administration.  She loves the outdoors and spends her time hiking, biking, fishing and playing tennis.  Call her today with any of your insurance questions.

CCT Headshot_grey_2.jpg


Caitlyn C. Tivy, PT, DPT, OCS


Caitlyn Tivy is a graduate of the Doctor of Physical Therapy (DPT) program at the University of Colorado’s Anschutz Medical Campus. She received her Bachelor of Science in Molecular Biology from the University of Denver, and worked in biomedical research for several years before pursuing a career in physical therapy. In 2017, she completed a residency in Orthopedic Manual Physical Therapy in Austin, TX, in association with Evidence in Motion, and received her board certification as an Orthopedic Certified Specialist (OCS) in 2018.  


Caitlyn enjoys treating patients of all ages and physical abilities with a wide variety of orthopedic and neuromusculoskeletal conditions, and she frequently uses her background as a 200-hour certified yoga teacher to inform her treatment approach. She has a special interest in the rehabilitation of pelvic floor conditions, and is currently the only therapist in the mid-valley with the expertise to treat women’s and men’s health concerns. For more information regarding this specialized treatment, please visit her website at, and feel free to reach out to Caitlyn via the website with any questions about pelvic health PT and how she can help.  



  • Chronic pelvic pain (including vulvodynia, vestibulodynia, vaginismus)

  • Urinary or fecal incontinence

  • Chronic constipation or diarrhea

  • Pain with intercourse

  • Painful bladder syndrome (interstitial cystitis)

  • Endometriosis-related pain

  • Pregnancy-related pain – both pre- and post-partum

  • Post-operative care: post-prostatectomy, post-hysterectomy, etc.

  • Abdominal separation after pregnancy (diastasis recti)