Our Team

When health options for your pet feel limited or overwhelming, Dr. Karyn Fein offers hope and optimism paired with expert knowledge in animal rehabilitation therapy to begin healing your furry friends. She develops custom treatment plans that integrate Eastern and Western veterinary medicine practices, bringing your pet much-needed pain relief and an improved quality of life.

Dr. Fein leads Rocky Mountain Veterinary Rehabilitation (RMVR) as the ultimate case manager, patient educator, and liaison with your primary and specialty veterinarians, helping you make the best decisions for your family. She believes that caring and effective communications yield the best results. At the end of every RMVR visit, you will have the confidence that your pet is on the road to wellness.

Dr. Fein launched RMVR as one of metro Denver’s first-ever mobile rehabilitation practices after working in emergency and general practice. The practice moved into its current location in October of 2020.  Outside of work, Dr. Fein enjoys mountain life with her husband Dave, their two sons, and their dog Gorp).

Dr. Ali’s veterinary career has changed over the years based on her personal experiences and natural curiosity. Originally, she was motivated to work on securing the safety of the international food supply, traveling domestically and globally to educate farmers on livestock care and herd health. Now, she is dedicated to companion animal care, specifically rehabilitation and pain management, having earned certifications in acupuncture and rehabilitation.

Dr. Ali first learned about rehabilitation when her own dog, Trixie, tore a cruciate ligament while she was in veterinary school. Ever the curious scientist, she enrolled Trixie in several research studies at Colorado State University to determine how effective and beneficial rehabilitation and acupuncture can be in the recovery and healing of injuries. Over time, Trixie regained full use of her leg, and sufficiently amazed by her progress, Dr. Ali developed a new passion in integrative therapies.

In the rehab field, Dr. Ali enjoys using her skills in soft tissue and mobility manual therapies. Having used “harder” hands while caring for cattle, she’s realized that a softer touch provides insight into injuries that lead to long-term healing. The efficacy of shockwave therapy has also been a newer treatment modality for her expertise, and she continues to see it lessen the discomfort of her patients with great efficiency. She loves caring for geriatric patients and improving their quality of life over just a few weeks, and the miracle of helping dogs with intervertebral disc disease going from being paralysed to being able to walk again is always empowering.

Dr. Ali has lived in Colorado for a decade. She enjoys the outdoors through snowboarding and bass fishing, and spends time with her husband and family of four fur babies – three dogs and a cat.

Angela’s decision to become a Certified Veterinary Technician and focus on physical rehabilitation came from several career and personal developments. While at the University of Wisconsin, she studied Therapeutic Recreation where her practicum experience encompassed hospital-based work with stroke patients. She had also had physical therapy treatments for her own good health, and had a keen understanding of its efficacy. Later, she experienced the benefits of veterinary rehabilitation first-hand when her beloved dog, Lambeau, was diagnosed with degenerative myelopathy: She needed help with urination and began knuckling due to reduced nerve sensation. Angela found her Lambeau’s therapy results to be effective over time, extending her life for a longer, more comfortable period.

Upon moving to Colorado, Angela served as a general practice Certified Vet Tech at Boulder Veterinary Hospital where her mentor was a vet acupuncturist interested in holistic care. She saw acupuncture’s benefits immediately. At RMVR, she is most interested in rehabilitation programs, acupuncture, TCVM’s chiropractic-style treatments, and shockwave therapy for pain relief.

Colorado native Brie Ellis was busy studying Sociology with a side gig at a dog boarding facility, and later, as a kennel tech, when she realized that her love of animals superseded her interests in large-scale human behavior trends.

As Brie began her studies to become a veterinary technician, she reframed her work perspective at a general vet practice after seeing lots of dogs post-knee surgery or limb removal. She began to research rehabilitation care and connected with Dr. Fein at RMVR. She experienced quickly the many innovative treatment modalities that exist for recovery and for ongoing wellness care, whether working with young sport dogs or with geriatric patients whose discomfort can be relieved with productive therapeutic modalities.

Brie truly enjoys the many sides of rehabilitation care: First, she loves animal anatomy, and how in-office and at-home therapeutic exercises work to improve pets’ anatomical deficits as well as improving their quality of life overall. She also loves developing long-term relationships with animals and their pet parents, and she really appreciates seeing the incredible progress and functional improvements that patients can make through ongoing rehab treatment. She is especially thrilled when a previously paralyzed patient is able to walk again.

In her free time, Brie can be found in the dance studio or in the outdoors, enjoying pursuits such as hiking and river tubing.

Liz has been obsessed with animals for as long as she can remember, pairing a lifelong love of science with a natural curiosity about how to diagnose, treat, and prevent illness. As a child, she cared for kittens with distemper and a horse with EPM—experiences that, despite their difficult outcomes, sparked her interest in veterinary medicine and shaped her commitment to learning as much as possible about animal health.

Her career began in large animal veterinary medicine before transitioning to small animal work after moving to Arvada. Years of experience in both fields have given her a broad foundation in animal handling, patient care, and client communication. After feeling burned out in general practice, she found new energy and purpose in rehabilitation, where she could help pets heal in a calmer, more supportive environment.

As a Veterinary Assistant at Rocky Mountain Veterinary Rehabilitation, Liz loves making pets more comfortable and seeing their excitement when they walk through the door. She is especially passionate about working with chihuahuas and enjoys using tui fa techniques to support mobility and relaxation. With a warm attitude and a deep desire to keep learning, she strives to make every visit as stress-free as possible—especially for nervous or sensitive pets.

Outside of RMVR, Liz can be found sleeping, reading, cleaning, walking or hiking, and seeking out spicy food. She shares her life with three wonderfully obnoxious dogs and a horse who keeps her on her toes. Clients appreciate her calm presence, her compassion for animals of all kinds, and her dedication to helping every pet feel safe, supported, and cared for.

Margaret brings both experience and compassion to the Rocky Mountain Veterinary Rehabilitation team, drawing from her background in shelter rehabilitation where she worked extensively with relinquished animals with special needs. What began as a personal passion for supporting vulnerable pets naturally evolved into a career in veterinary rehabilitation—one centered on restoring mobility, comfort, and confidence while supporting the families who care for them.

At RMVR, Margaret is dedicated to providing thoughtful, attentive care to both patients and their people. She works with a wide range of conditions, from acute injuries to chronic mobility challenges, and collaborates closely with clients to implement individualized treatment plans. Her skill set includes manual therapy, laser therapy, shockwave therapy, hydrotherapy, and targeted therapeutic exercise. Her favorite moments are seeing patients regain movement and return to the activities they enjoy most.

A lifelong learner, Margaret is always seeking opportunities to expand her knowledge and refine her skills to better serve her patients. Outside of the clinic, she leads an active lifestyle as a USA Swim Team coach, retired competitive swimmer and triathlete, and avid reader, hiker, and yoga practitioner. Having experienced physical therapy firsthand for sports-related injuries, she brings a personal understanding of the rehabilitation process that informs both her professional work and her own movement practices.

Dr. Horner’s interest in veterinary medicine began while caring for an ailing horse, where her curiosity about the science behind diagnosis and treatment first took shape. That interest deepened in high school when she cared for a horse with aspiration pneumonia—an experience that, despite its difficult outcome, helped shape her compassionate and thoughtful approach to patient care.

Originally drawn to equine medicine, Dr. Horner’s career evolved into small animal practice, where she now specializes in surgery and integrative care with a focus on acupuncture. At Rocky Mountain Veterinary Rehabilitation, she provides acupuncture and electroacupuncture services to help improve mobility, comfort, and quality of life, particularly for senior patients.

Dr. Horner is known for her calm demeanor, easygoing attitude, and ability to put fearful or anxious patients at ease. She values spending time with both pets and their families, helping each visit feel comfortable, supportive, and unrushed.

Outside of work, Dr. Horner enjoys mountain biking, backpacking, snowboarding, and hiking with her dog, Watson, a 12½-year-old Catahoula Leopard Dog who has been her adventure partner since puppyhood. When she’s not outdoors, she enjoys making functional pottery, cooking, and baking.

Emily’s career path reflects a lifelong interest in animal behavior, health, and science. With an academic background in biology and ethology, she began her professional journey in wildlife research and wolf ethology before transitioning into clinical veterinary medicine. Early on, she recognized that her interests aligned with advanced, long-term patient care, ultimately leading her to specialize in canine rehabilitation.

At Rocky Mountain Veterinary Rehabilitation, Emily works as a relief Certified Canine Rehabilitation Veterinary Technician, helping patients regain comfort, mobility, and confidence. She is especially passionate about supporting aging dogs and patients with neurologic conditions, and finds great fulfillment in seeing meaningful improvements in their quality of life.

Emily brings a science-based, animal-centered approach to every patient, shaped by years of experience in critical care, busy rehabilitation clinics, and mobile rehab settings. Known for her gentle handling, clear communication, and ability to help nervous pets feel secure, she focuses on meeting each patient where they are and collaborating closely with pet owners to support both in-clinic care and at-home programs.

Outside of work, Emily enjoys hiking, traveling, whitewater rafting, and life as a hockey parent. She shares her home with four rescue pets—three dogs and a cat—each with their own strong personalities. Clients appreciate Emily’s thoughtful, empathetic approach and her commitment to working seamlessly with the RMVR team to help pets feel their very best.