About Us
Our Mission
Here are a few things you should know about Cache Ketamine. Our top priority is to provide quality and comprehensive mental health care while making it as accessible and affordable as possible. We are the first clinic to offer ketamine treatments for mental health in the Logan and Cache Valley area.
Our Team
Garrett Gundry
Garrett joined the practice in August 2022. He grew up in Grace, ID about 1 hour north of Logan, UT. He earned his Bachelor’s degree in dietetics in 2014 & his Masters in Physician Assistant Studies from Idaho State University in 2017. He spent 5 years working in Coeur D’Alene in Northern Idaho practicing bio-identical hormone replacement therapy, integrative medicine & family practice. He developed a passion for optimizing male & female sex hormones, thyroid hormones & utilizing natural supplements/therapies to manage common health conditions. In his years practicing family medicine, he also developed a special interest in helping patients who were suffering from mental illness. He is excited to be able to offer his assistance to those in Cache Valley.
Ashley Peterson
Ashley, a Board Certified Family Nurse Practitioner, earned her Nursing degree at Weber State University in 2012, followed by a decade of serving a diverse variety of Cache Valley residents. In 2021 she received her Masters of Science Family Nurse Practitioner degree from Northwest Nazarene University, graduating with honors. Ashley holds a firm belief that the picture of optimal health for each individual isn’t a “one size fits all”; taking a patient-centered approach to physical and mental health rather than a textbook disease-centered approach allows her to cater a plan specific to each client she treats. Knowledge is power, and Ashley strives to elevate her patients’ well-being by empowering them to be an informed participant and decision maker in their own ideal picture of optimal health. She prides herself in holding safe space to build a trusting relationship, with the common goal of improving your sense of mental health well-being. It is her privilege to experience life’s most vulnerable moments with the clients she serves.
Colby Martin
Colby is a native of Utah who graduated from Utah State University before completing the Red Rocks Physician Assistant Program in Colorado while earning a Master of Medical Science degree from Saint Francis University in Pennsylvania.
While working in community health, he developed a strong interest in psychiatry and addiction medicine but became frustrated with the limited options available for patients who do not respond to typical treatments. While researching alternative approaches, he became fascinated by the emerging evidence supporting psychedelic-assisted therapies and ultimately brought ketamine treatment services to Cache Valley.
Recognizing both the potential benefits and risks associated with psychedelic treatments, Colby completed training in Psychedelic Harm Reduction through MAPS in 2020. In 2023, he also participated on a committee that helped guide legislation in Utah to ensure an appropriate balance between patient access and safety standards for ketamine administration.
In 2025, Colby completed formal training in the administration of Transcranial Magnetic Stimulation (TMS), an FDA-cleared treatment for depression and OCD.
He strives to stay current with the most evidence-based approaches to mental health treatment, recognizing that effective care may involve medication, neuromodulation therapies such as TMS, ketamine treatments, and lifestyle factors such as nutrition, exercise, and overall wellness.
Outside of work you can find Colby camping, 4-wheeling, and playing pickleball.
Brett Sharp
Dr. Brett Sharp brings over 30 years of psychiatric expertise to our team. He is triple board-certified in Pediatrics, Child and Adolescent Psychiatry, and Adult Psychiatry, giving him a unique ability to care for patients across the lifespan.
Throughout his career, Dr. Sharp has worked extensively in both outpatient and inpatient settings, treating a wide range of mental health, behavioral, and developmental concerns. He is particularly recognized for his skill in helping patients whose medical, neurological, or developmental conditions affect their well-being at home, school, or work.
Dr. Sharp takes a thoughtful and comprehensive approach to care, considering not only the medical and psychological needs of his patients, but also their family, social, and spiritual contexts. He is careful and deliberate in prescribing medication, balancing effectiveness with safety, and works collaboratively with patients, families, and therapists to support the overall treatment plan.
A leader in innovative mental health care, Dr. Sharp has embraced modern treatments such as Transcranial Magnetic Stimulation (TMS) and ketamine therapy, expanding treatment options beyond traditional daily medications. Known for his compassion and respect for each individual, he is dedicated to helping patients and families achieve meaningful, lasting improvements in health and quality of life.
Sage Nyman
Sage is a Board-Certified Physician Assistant who specializes in psychiatry and medication management. He earned his Bachelor of Science in Human Movement Science from Utah State University and later completed his Master of Physician Assistant Studies at Rocky Mountain University of Health Professions.
Although originally trained in general medicine, Sage discovered a special interest in mental health and has since focused his practice on psychiatry. He provides thoughtful, evidence-based medication management for patients across all ages and is passionate about helping individuals achieve meaningful and lasting improvement through personalized treatment planning and a compassionate, collaborative approach.
Sage has completed advanced psychiatric training through Valley Academy and the Neuroscience Education Institute’s Master Psychopharmacology Program. He remains dedicated to ongoing education and to integrating emerging treatments—such as ketamine and Transcranial Magnetic Stimulation (TMS)—to expand options for patients who may not have responded to traditional approaches.
Madison Groberg
R. Jake Measom
Tabitha Womack
Tabitha Womack brings a unique whole person approach to mental health care, grounded in years of frontline experience and a deep passion for helping others thrive. She worked full time in Fire and EMS, where she saw firsthand the gaps in patient care, especially in mental health. While many patients are told what to do, Tabitha recognized that too often they are not given the tools, guidance, or support needed to actually do it.
Now serving as the Health Coach at Cache Ketamine, Tabitha helps bridge that gap by supporting patients as they translate treatment into meaningful and sustainable lifestyle change. Her background in emergency medicine, combined with her work in mental health settings, allows her to meet patients with empathy, realism, and practical support.
Tabitha is a Certified Personal Trainer, Holistic Nutritionist, and Health and Wellness Coach. She integrates movement, nutrition, mindset, and daily habits to support mental health, resilience, and long term healing alongside ketamine and TMS therapy. Her approach is collaborative and empowering, helping patients build confidence and consistency rather than feeling overwhelmed or alone.
Outside of work, Tabitha enjoys traveling, rock climbing, pottery, and spending time outdoors, activities that reflect her belief in the powerful connection between nature, movement, and mental well being.
Tayler Brown
Tayler has been a medical assistant for 13 years and a yoga teacher for 5 years. She is 500 hour certified in trauma informed yoga and has many other certifications such as breathwork, and reiki,m. Tayler is extremely passionate about mental health and has dreams of being a therapist in the near future. When she isn’t in the clinic, she loves to travel, dance, do and teach yoga, hike, paddleboard, and spend time with loved ones.
Alisha Clawson
Alisha was born and raised in Hyrum, UT and graduated from Mountain Crest High School. Alisha has been a Medical Assistant for 16 years and worked in Family Practice for 14 years in addition to 2 years in Mental Health. Alisha really enjoys working in health care and helping people. Alisha has 2 children and they love doing anything outdoors as a family; hiking, fishing, boating, camping, and motorcycle riding.
Heidi Jensen
Heidi attended Bridgerland Applied Technology college and graduated with her medical assistant and IV therapy certifications in 2006. Since graduation, she has worked in a large variety of clinical settings, finding that she had a particularly strong interest in mental health. Heidi has been a valuable member of the Cache Ketamine team since it was first established and has grown a passion for Ketamine and the profound benefits she gets to witness the patients achieve. When she isn’t at the clinic, she enjoys spending time outdoors with her family.
Susan Gillies
Coming soon…
Maria Larios
Coming soon…
Janeth Martin
Coming soon…
Krissi Anderson
Debbi Jamison
Nathaniel Burningham
Nathaniel grew up in Richmond and met Colby Martin in the fall of 2020 where they bonded over several things—mainly being tall, skinny, white guys. After completing his journey with ketamine treatment, Nathaniel began working with Colby and Cache Ketamine and has been part of the team ever since. He also owns Burningham Digital and works with several other small businesses throughout Cache Valley, UT.
Our Services
Ketamine Treatment
Ketamine has proven to be a groundbreaking treatment for those suffering with treatment-resistant depression, anxiety, OCD, PTSD, and more. Ketamine has the ability to improve symptoms in patients within hours. This is an incredible alternative to traditional medication that typically takes several weeks to start working. We are the only clinic to provide Ketamine therapy to Cache Valley and offer an extremely competitive price point compared to other clinics in the US. If you are curious about Ketamine and wonder if it could help you, please reach out to us. We’d love to talk with you! Visit our Accepted Insurance page to see if we accept your provider.
TMS Therapy
We provide TMS Therapy as part of our commitment to effective, evidence-based mental health care. TMS (Transcranial Magnetic Stimulation) is an FDA-approved, non-invasive treatment for individuals facing depression, particularly when traditional medications haven’t been effective. Using gentle magnetic pulses, TMS stimulates areas of the brain involved in mood regulation—offering a safe, medication-free path toward relief. This advanced therapy reflects our dedication to helping individuals in Logan and throughout Cache Valley access lasting healing and support.
Health Coaching
Health coaching provides hands-on, sustainable lifestyle guidance tailored to you. It can include support with nutrition, daily movement, sleep habits, stress management, routines, and building healthier patterns over time. Instead of a one-size-fits-all approach, we start where you are and focus on small, realistic steps that create steady progress without the pressure of quick fixes. As a patient of Cache Ketamine, you are entitled to one free 30 minute health coaching session.
Trauma-Informed Yoga
Trauma-informed yoga classes have been scientifically proven to assist people in recovering from trauma. They are designed to help you learn to soothe the mind and body when dealing with symptoms of anxiety and depression. Trauma-based yoga is a great tool to improve the quality of your mental health and create a smoother human experience.
Medication Management
Our Medical Professionals are here to help with diagnosis, treatment recommendation, and any questions you might have. We can prescribe medications and discuss alternatives that may be better suited for you. Our goal is to assist you in living a happier life by helping you find the right medication with clear communication and genuine kindness.
Medical Cannabis
Cache Ketamine is happy to assist you in applying for your Utah Medical Cannabis Card. Once you’ve started the application process, you will meet with a Qualified Medical Provider who is certified through The Department of Health to give you recommendations and advice on Medical Cannabis.
Counseling & Therapy
Cache Ketamine & Mental Health is excited to offer counseling and therapy services through our friends at Family Solutions Counseling (FSC)! Additionally, FSC offers life coaching, mental health assessments, and much more. For more ways on how Family Solutions Counseling can help you, click the button below.
Our Location
How to Find Us
We are located at 115 Golf Course Rd Suite E, Logan, UT 84321, just west of the Wendy’s on the south end of Logan. Look for the plaza corner sign labeled “STATE OF UTAH” with multiple businesses (including ours) listed below it. Our front door is located on the east side of the building, looking towards Main Street. Click here to see photos of our building.
*Remember to please schedule an appointment before visiting. Thank you!*