About Us
About Mile Hi Animal Hospital
Mile Hi Animal Hospital provides the highest quality veterinary care to ensure you and your pets are healthy and happy. Meet our skilled, compassionate veterinary care team who are committed to providing exceptional veterinary care for your pets.
Meet the Team
Dr. Jim Duchow
DVM
Dr. Jim Duchow was born and raised in Wisconsin and earned his Doctor of Veterinary Medicine degree from the University of Wisconsin–Madison School of Veterinary Medicine in 1993. Shortly after graduating, he relocated to Coeur d’Alene, Idaho, where he built a long and rewarding career in veterinary medicine spanning 31 years.
During his time in Idaho, Dr. Duchow practiced companion animal medicine with a strong focus on compassionate, relationship-based care. For 16 of those years, he proudly owned and operated his own veterinary clinic.
In February of 2025, Dr. Duchow and his wife moved to Prescott, Arizona, seeking a change of pace and a new chapter in life. When not practicing veterinary medicine, Dr. Duchow enjoys hiking, bird hunting, and fly fishing with his wife and their dog, Gertrude. He is also the proud father of four grown children who are spread throughout the country.
Dr. Tandi Sherlock
DVM
Dr. Tandi Sherlock joined our team in April 2013 after practicing veterinary medicine in Prescott Valley for thirteen years. She graduated first in her class and received her Doctorate of Veterinary Medicine from Kansas State University in 1999. She went on to complete a one-year internship in veterinary medicine and surgery at The Atlantic Veterinary College, Prince Edward Island, Canada. She is certified in veterinary acupuncture through the Chi Institute. Dr. Sherlock thoroughly enjoys helping patients with an integrated approach, utilizing acupuncture when indicated. Other special interests include oncology, surgery, and geriatric medicine.
Dr. Sherlock, daughter Cadence, and son Zane enjoy volleyball, hiking, kayaking, and biking. Endurance horseback riding and running are also favorite ways Dr. Sherlock enjoys exploring!
Dr. McCollum
DVM
Dr. McCollum started working in veterinary clinics in the 1970s when there was talk of a new disease in dogs caused by parvovirus. She graduated from Oregon State University Veterinary School in 1986. She then worked mixed animals in Oregon for 7 years, then 15 years in Alaska, and most recently 15 years in Arizona. She says the people are the best part of her job—both coworkers and clients! She appreciates their company and their trust. Her hobbies are gardening and anything horse-related!
Dr. Lisa Darling
DVM
Dr. Lisa Darling is a highly experienced veterinarian, bringing over 34 years of comprehensive experience to our team. A graduate from North Carolina State University College of Veterinary Medicine, Dr. Darling has a diverse background, having worked in areas such as large and mixed animal practices, small animal practice, and shelter medicine. She has also contributed academically by establishing and teaching at AVMA accredited veterinary technician programs and has corporate experience working with companies like PetSmart and others that brought new veterinary drugs to market.
Outside of her professional commitments, Dr. Darling is passionate about spending time outdoors, engaging in activities like hiking and running. She also enjoys training and showing horses and is a loving pet owner to four dogs and four horses. Her broad experience and deep love for animals make her a valuable asset to our veterinary team.
Our Staff
Gabby
Vet Tech
Lexi
Vet Tech
Robin G
Receptionist
Suzi
Certified Vet Tech
Tamara
Hospital Manager
Christine
Receptionist
Ashley
Vet Tech
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Mile Hi Animal Hospital is part of the Companion Pet Partners family of veterinary hospitals.
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