Meet Our Team


Andrea Stickland, DVM/Owner

As the owner and leading veterinarian at Animal Medical Center of Chandler, Andrea has a specialty in general medicine, including internal medicine, dermatology, nutritional consulting, and soft tissue surgery. She is a graduate of Michigan State University College of Veterinary Medicine, Class of 2001. She was born in Inglewood, California; lived in Lake Tahoe for 10 years; and then moved with her family to Arizona. Her interest in animals began early in life, starting with 2 little dogs. Her pet family then grew to include 10 horses, 24 cats, 26 dogs, and 2 birds–all at one time. She began her veterinary career as a veterinary assistant in Tucson, Arizona, while attending the University of Arizona (GO CATS!).

After working as a veterinary assistant, Andrea met her husband, Chris, a Tucson native, and moved to Michigan for graduate school. While there, she participated in many new adventures, including Student Class President, President of the Student Chapter of the American Veterinary Medical Association, President of the Feline Club and Canine Club, and head of the fundraising committee for the Veterinary College at Michigan State. She spent her summers working for the Vetward Bound Program, which helps underprivileged young adults fulfill their quest in the veterinary industry. She also spent time at the Indian reservations along New Mexico and Arizona for the Remote Area Medicine program to help spay, neuter, and vaccinate reservation animals. Andrea and Chris moved back to Arizona after graduation in 2001. In 2005, she  was invited by MSU to go to Wyoming to participate in teaching veterinary students remote area medicine and surgery on the reservations by Riverton.

Andrea and her husband share their home with three children, a spoiled cat named Whiskey Whiskertons, and a bulldog named Latte. When she’s not at work, she loves to read, dance, hike, and spend time with friends and family. Today, she  finds herself here at Animal Medical Center of Chandler to welcome the community and provide wonderful care and service to her patients.

Carolyn Duregger, DVM, cVMA

Carolyn graduated from Colorado State University (CSU) Veterinary School in 1992. She was born in Palo Alto, California, but has lived in the Phoenix area since she was very young. She has practiced in the Valley since graduating from CSU. She remains active in many organizations, such as the American Veterinary Medical Association, Arizona Veterinary Medical Association, American Association of Feline Practitioners, and the Veterinary Integrative Network. She is also a certified veterinary medical acupuncturist.

Carolyn currently resides in Mesa with her husband, Dan, and her son, Dylan. Her dog love is a soft-coated wheaton terrier, Parker, and her cat love is Animal Medical Center of Chandler’s hospital resident, Baloo. In her spare time, you may find her reading, listening to music, or spending time helping her husband out with their family business.

Gabriela Durig (Glucksman), DVM

Gabriela was born and raised in Southern California. After receiving her Bachelor of Science degree from the University of California Davis, she continued her education at The Ohio State University, earning a DVM in 2015. She then completed an internship in emergency medicine at the Emergency Animal Clinic in Gilbert, Arizona. Her professional interests include soft tissue surgery, oncology, and internal medicine. Gabriela has played a very active role in veterinary research, and her work has been published in several peer-reviewed veterinary journals.

She was a very active athlete growing up. A few of her accomplishments include competing in the World Equestrian Games for Team USA and playing soccer at the collegiate level. In her free time, she enjoys exercising, arts and crafts, and exploring the beautiful state of Arizona. The Durigs have two incredibly spoiled, adorable dogs named Bruiser (Rhodesian ridgeback) and Beau (golden retriever).

Gabriela is very excited to be a part of the Animal Medical Center of Chandler medical team and cannot wait to meet you and your animal companion!

Practice Manager

Jessica Reed

Jessica was born in Duluth, Minnesota, and moved to Arizona in 1996. She completed a veterinary assistant program in 2009. She also attended Arizona State University, where she graduated with a Bachelor of Psychology degree in 2015. Jessica’s family consists of her husband, Randy; their two handsome cats, Oliver and Rizzo; and two Uromastyx lizards, Sassy and Star. For fun, she enjoys attending hockey games, watching crime dramas, and spending time with family.

Certified Veterinary Technicians

Krishna Poe, CVT

An Arizona native, Krishna is a U.S. Army veteran and graduate of Mesa Community College and Pima Medical Institute. She has been a veterinary technician since 1998. Her past experiences include hospital management, general practice, and emergency medicine. Although she only works at Animal Medical Center of Chandler part-time now on the weekends, her love of animals and veterinary medicine keeps her active in the field. Krishna is the proud parent of two children, a crazy orange tabby cat, a rambunctious but very sweet pit bull, and an albino corn snake. In her spare time, she enjoys reading, hiking, bike riding, attending church, yoga, kick boxing, and playing with her children.

Cassandra Allen, CVT

Bio Coming Soon

Jen Ahumada, CVT

Jen is an Arizona native, born and raised in Casa Grande. She graduated from Pima Medical Institute and has been a veterinary technician since 2015. When not at AMCofC, Jen loves to spend time with her husband, Luis, and their 3 rambunctious dogs, Chloe, Bruce, and Omega. She enjoys being crafty, knitting, quilting, as well as being outdoors going hiking, camping and horseback riding.

Veterinary Technicians

Nicole Sandusky

Bio Coming Soon

Vanessa Gonzales

Vanessa attended and graduated from Carrington College as a veterinary assistant in 2009. She has been working in the field ever since and enjoys building bonds with clients and their pets. She currently resides in Chandler with her husband, Junior, and daughter, Mia. They have a poodle mix named Tater and a boxer mix named Dayla. They also have a cat named Marabelle and a newly adopted kitten named Faith. Vanessa enjoys scrapbooking, sewing, and spending quality time with her family.

Sheryl Mayes

Sheryl joined the Animal Medical Center of Chandler team in October 2015. She has loved and connected with animals since she was a little girl. However, her early career did not involve animals. She initially received a degree in baking and pastry arts and enjoyed it, but always wondered what it would be like to work with animals. She eventually followed her heart and got a job as a veterinary assistant in 2006, and never looked back. Sheryl is particularly fond of pain control and healing using integrative methods like acupuncture and K-Laser treatments (available here at Animal Medical Center of Chandler). She is “owned” by her two spoiled dogs, Brody and Lani; a leopard tortoise, Sunshine; and two chickens, Mama and Penny.

Bobbi Valenzuela

Bobbi is an Arizona native, born and raised, and still resides in Chandler. She graduated from the Veterinary Assistant Program at Pima Medical Institute in 2002. At Animal Medical Center of Chandler, you will find Bobbi utilizing her skills as both a technician assistant and a receptionist. She has three kids, Alec, Arik, and Ava; two cats, Si and Fancy; and a Uromastyx lizard, Bowser. When not at work, you will find her spending quality time with her family, including attending her son’s football games (GO CHS Wolves!), doing activities with her kids, and enjoying breakfast and a movie with her mom every other weekend.

Andrea Harder

Andrea moved to Arizona when she was 9 years old. As a child always imagined herself working with animals. After graduating high school, Andrea volunteered at Wildlife World Zoo. She then got an internship at the Emergency Animal Clinic and this is where her veterinary career took off. Andrea is happily married and has 2 dogs, Maya and Zen. She loves to travel and see new places and meet new people. In her free time Andrea enjoys sewing, reading, and hiking.

Technician Assistants

Brittney Gates

Brittney grew up in Westminster, Maryland and always knew she would work with animals. She graduated from Delaware Valley University in 2010 with a Bachelor of Science degree in zoo science.  After graduating, Brittney spent two years caring for large cats and other exotic species at a wildlife preserve in North Carolina. In 2012, life brought her back north to Alexandria, Virginia where she found her true passion working as a veterinary assistant. In January 2017, a new job opportunity presented a new adventure. Brittney now lives with her husband and their spoiled cat in Gilbert, Arizona and enjoys hiking, bike riding and enjoying the many new sights that Arizona has to offer.

Rien Ventzos

Bio Coming Soon


Nicole McKinney

Lead Receptionist

Nicole was born in Glendale, Arizona, in 1996; lived in Ahwatukee until 2002; and then moved to San Tan Valley. Her love for animals started at a young age, thanks to her mom (who worked at a pet store and always brought small animals home), but the desire to care for animals as a career stemmed from Nicole’s experience with her late golden retriever, Jake (Bacon). She currently lives in Florence, Arizona, with her fiancé, Stewart; two “dog children,” Hank and Bill; and multiple aquariums full of assorted fish. When she’s not at work, she loves camping, fishing, and hiking.

Michelle Standfast

Michelle is an Arizona native and proud of it! She graduated from the University of Arizona in 2012 with a BA in Psychology. Although she enjoyed her studies in Psychology, she has always had a passion for animals.  This passion blossomed from volunteering with various rescues groups, helping out with adoptions and assisting with the kennels. Michelle is thrilled to finally be working in an environment where she can be around animals and help assist with their health and well-being any way she is able to.  For fun, Michelle also teaches/practices yoga and pilates. She also loves spending time with her 21 year old cat, Angelica, as well as her family and friends.

Kirstin Ridings

Kirstin grew up in San Antonio, Texas and moved to Chandler, Arizona in late 2010 with her mom as opportunities arrived for their small family. Her first rescue dog, Cricket, came to her soon after her arrival in Arizona and made the transition much easier. This fueled the flame for her love of animals that Kirstin always had growing up… Once an animal person, always an animal person. The step towards her veterinary aspiration kick started in June 2016 with the opportunity to work at a vet clinic in Washington, DC. Although Kirstin enjoyed her time on the East Coast, her heart brought her back to Chandler in October 2016. She will be pursuing veterinary technology and animal medicine at MCC in 2017. When Kirstin is not at work, you can find her out and about staying as active as possible!

Kennel Assistants

Madison Barton

Bio Coming Soon

Mary Yazzie-Umberger

Bio Coming Soon