Tiffany Healey, DVM

Tiffany Healey DVM grew up in Cheyenne and graduated from Central High School in 1991.  She received her Bachelors of Science in Zoology from the University of Oklahoma in 1996 and her Doctor of Veterinary Medicine from Oklahoma State University in 2002. During her time in veterinary school she was active in research using lasers in surgery in veterinary medicine.  She received a grant from the National Institutes of Health and multiple scholarships including the Sue Busch Memorial Award in recognition for her role is supporting companion animals and the human-animal bond.

Dr. Healey is married to Nick, an attorney, and they have two children.  The Healeys have one cat MACS  and two crazy mixed breed dogs Oban and Robbie.   When Dr. Healey is not caring for her two and four legged critters she spends time volunteering in the community.  She has been a Girl Scout leader for many years and loves encouraging young women to become leaders in their community.  She also volunteers for the Western Art Show every summer.  Dr. Healey also loves working closely with Black Dog Animal Rescue.  Dr. Healey is the president of Cheyenne Veterinary Medical Association, the president elect of Wyoming Veterinary Medical Association and the alternate delegate for Wyoming for the American Veterinary Medical Association.


Chelsea Croghan, DVM

Dr. Chelsea Croghan graduated from the Colorado State University College of Veterinary Medicine in 2010.  Immediately after graduating from CSU she practiced mixed animal medicine in rural Colorado for a few years before returning to her home town of Cheyenne with her husband, 2 small children, and horses.  Dr. Croghan enjoys the challenges of surgery in veterinary medicine, and has a passion for helping clients understand and learn about the health of their pets.  Dr. Croghan’s hobbies include spending time with her family, camping, fishing and horseback riding.

Sarah Crystal, DVM

Dr. Sarah Crystal grew up in Colorado and attended Colorado State University for her Bachelor of Liberal Arts degree.  After working in a variety of fields, she returned to CSU for her Master of Biomedical Science and Doctor of Veterinary Medicine degrees.  She has an interest in surgery and emergency medicine and a special place in her heart for geriatric patients.  She lives in Cheyenne with her daughter and one rescue pup named Agnus.  Skiing, camping, paddle boarding, and traveling are among her favorite activities outside of work.

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Laura Conn, CVT, CVPM

Laura grew up in Cheyenne and began her career in veterinary medicine in 1988 as a volunteer at a local veterinary clinic.  She graduated from Bel-Rea Institute of Animal Technology in 1996 and received her license as a Certified Veterinary Technician.  In 2012, after attending St. Petersburg University, Laura earned her designation as a Certified Veterinary Practice Manager.  Additionally, in 2012 she established the Veterinary Technician Association of Cheyenne.

Laura is a member of the Colorado Association of Certified Veterinary Technicians, Veterinary Hospital Managers Association and the Air Force Association.

Laura and her husband Rob have three daughters.  They take advantage of every opportunity  to enjoy the outdoors, especially a good fishing trip or visit to Estes Park.


Melissa Liesenfeld, Veterinary Assistant

Melissa is a Cheyenne native and graduated from Central High School.  She has worked in the medical field for over 13 years.  Additionally, for the past 15 years she has trained and bred Labrador Retrievers and ran AKC/UKC events with her own dogs.  She has a passion for animals which includes her crazy mix of Labradors, cats, chickens, pheasants, quail, and sugar gliders at home.

In her free time, Melissa loves spending time with family and friends camping, boating, and hunting.


Brenda DeJersey, Veterinary Assistant

Brenda grew up in Cheyenne and has always been involved in the care of animals in one capacity or another.  After working for the Cheyenne Animal Shelter for 15 years, she transitioned into veterinary medicine, where she has enjoyed many years of caring for a variety of fur babies.  One of Brenda’s strongest attributes is managing behavioral concerns in dogs.

Brenda’s hobbies include riding her horses with her husband, Ken, and spending time with her grandchildren Kirby and Cutter.

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Tanya Keel, CVT

Tanya has a love for animals that began in 1974 with her first pet, a fly named “Chuck”.

After receiving her B.S. from Ohio State University (Go Buckeyes!), she obtained an associates degree in veterinary technology.  Her career has allowed her to live and work all over the country while she followed her Army husband. Her most recent move brought her to Cottonwood Veterinary Clinic where she appreciates working with other people that understand the strong bond we have with our pets.

Tanya is a self procaimed “Lab Lover” and in her free time enjoys fly fishing, watching college football, and attempting many crafts.


Stephanie Kushner, CVT

Stephanie joined Cottonwood Veterinary Clinic in 2021.  She was born and raised on a farm in Ohio, which is where her love of animals began.  She graduated from veterinary technician school at Kent State University in 2011 and moved to Wyoming in 2018.  She also works at Four Seasons Specialists ER.  She and her husband Richard live on the outskirts of Cheyenne with their three children, three horses, two dogs and one cat.  In her spare time (which is very limited) Steph enjoys hiking, camping and exploring new places with her family.


Lindy Keel, Receptionist

Lindy has always been passionate about animals and she was able to use that passion by starting to work for a veterinary clinic in Arizona as an assistant.  She later moved back to her hometown of Cheyenne and continue her career with animals as a receptionist.  In her free time, Lindy enjoys camping with her husband Ken and their two dogs, Kobie and Jorie.  She also loves spending time with her son Jake and her granddaughter Mackenzie.


Andrea Martinez, Receptionist

Andrea started with Cottonwood in 2020 as a receptionist.  She was born and raised in Cheyenne.  She and her husband John have three children and are blessed with an every growing bundle of grandchildren (two and four legged).  In her spare time, Andrea enjoys cooking and spending time outdoors.  She has three dogs Chuy, Mila and Wyatt.

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Liz Studley, Receptionist

Liz joined Cottonwood  Veterinary Clinic in 2021 but has worked in veterinary medicine for over 20 years.  She thought she had retired in 2013, but was recruited back to her receptionist position while out on a social visit.  Liz enjoys spending time with her husband Jack, children and grandchildren.  In her spare time Liz enjoys walking, yoga, reading, bible study and spending time with her pets Olive and Pearl.

Liz Studley