Linda Rosales - Lead Veterinary Technician

Linda came to us in June of 2018. She has over 20 years of experience as a small animal veterinary technician. She excels in dentals and assisting with surgeries. She is trained and certified in Fear Free. This aids to reduce your animal's fear, anxiety and stress when visiting the veterinary clinic. She thrives in the fast paced environment of veterinary medicine and loves taking care of her patients. She also enjoys educating and supporting owners in their care of their pets. She loves outdoor activities and spending time with family, her dog, horses and granddaughter. 

Connie Callen - Kennel Assistant

Connie was born in California but moved to Arizona in the early 1970s. She served in the Army for three years. She currently lives in Yarnell with her three dogs. Working at Hassayampa Vet Services allows her to purse her passion of caring for animals. 

Daniella Cowles- Veterinary Assistant

Daniella grew up in the U.K. after spending her early years in Russia. She attended university in England for a year before coming to Wickenburg to be with her family in 2016. She is currently enrolled at Embry Riddle Aeronautical University in Prescott and pursuing a degree in Forensic Psychology with Biology, but is unsure what the future will hold. She loves spending time with her Russian Blue cat Tasha and her sister Gabi's Aussie/Collie dog Jessie. She relishes any chance to travel, and especially likes going on trips to Mexico with her church. She also enjoys baking and reading in her spare time. 

Lizzie - HVS Mascot

Lizzie has been here at HVS since it's opening in 2012. She spends much of her time behind the receptionist counter when she is not out playing in the yard or at home with Dr. Ruisi. Lizzie was found abandoned in the desert shortly after being born. Fortunately, she  was found by a good Samaritan who immediately brought her in to Dr. Ruisi for care. The rest is history!

Samantha Murray- Veterinary Technician

I grew up in upstate New York, and at the age of 20 I moved to Arizona to be closer to my family. I’ve always had a passion for animals, growing up with many pets from cats to dogs, rabbits, guinea pigs and more. When I turned 18 I started working as a dog groomer through the PetSmart Training Academy, and have been grooming ever since. I took college courses to become an Emergency Medical Technician. Being able to help animals in need and assisting the doctors is a rewarding feeling that I love. In my free time I can be found making a good meal for my best friend and spending time with my fur children…Captain Jack-Cocker Spaniel, Dale-Cocker mix, Dean-Chiweenie, Monkie and Goonie-Kitties, and three guinea pigs- Deeds, Cogsworth, and Sunshine. I am happy to be a member of the HVS Team!

Dr. Lara Shreve has recently joined Hassayampa Veterinary Service  (July 2017).  She is originally from Nebraska, but moved to Cottonwood, AZ when she was 12 years old.   After attending the U of A for her undergraduate studies, Lara relocated to Colorado where she graduated from Colorado State University College of Veterinary Medicine.  Following graduation, she completed an equine internship at Elgin Veterinary Hospital in Elgin, Texas -- just outside of Austin.   After her internship, she decided to stay on at  EVH and practiced there for the next 12 years.  Lara and her husband (an Arizona native), decided to return to Arizona so they could raise their son, Benjamin, closer to family.   In her free time, Lara and her husband enjoy listening to live music, hiking, fishing, camping,  horseback riding , and pretty much any other outdoor activity!!  They are also very happy to be able to spend more time with family and to explore the wide open spaces of Arizona.  We are very excited to have her join out team!!

Mackenzi Parkinson- Veterinary Assistant

​I was born and raised in Northern CA, and moved to Arizona in September of 2018. I grew up around animals and always wanted to work in the Veterinary field. I took some animal science courses after Highschool and worked for 8 years in Animal Control.  I have an amazing son and daughter. When I'm not working I enjoy horseback riding, hiking and hanging out with my 2 dogs, 2 cats and my kids.

Lara Shreve, DVM - Associate Veterniarian

Jack Jenkins - Kennel Assistant

Jack moved to Wickenburg when he was nine and has lived here ever since. He worked at animal shelters for two years before joining the Hassayampa Veterinary Services team. He has always loved animals and enjoys caring for them. He would like to continue his education and pursue a career in animal care. 

Cris Ballard - Receptionist

Ashley Tucker - Receptionist

Ashley has lived in AZ for most of her life and graduated from Wickenburg High School before enrolling in college.  Ashley currently plans to pursue an education in the veterinary health care field and enjoys working where she can explore those opportunities.  In her spare time, Ashley likes to be outdoors; hiking and camping.  

Sonoma Waters - Veterinary Assistant

Sonoma was born and raised in Arizona. She graduated from Wickenburg High School and plans to continue her education to become a Veterinary Technician. She comes from a large family. She has a twin sister and three other siblings that are triplets! She loves spending time with her family, friends and her Black Lab Keria.



Cris has been in Wickenburg for three years and has lived most of her life in Arizona. The majority of her childhood  was spent in Cave Creek where she was surrounded by horses, dogs, cats, chickens, goats, and a variety of other critters. She has obtained degrees from Phoenix College and The University of Arizona.


Cris currently lives with a dog named Chevy and enjoys cross stitch, reading, watching movies, and going on road trips with her mother.

Twilla Keefe  - Practice Manager

Twilla grew up on cattle ranches in northern Nevada and Idaho. She graduated from Montana State University with a Bachelor’s of Science in Equine Science. She moved to Arizona shortly after graduating in 2006. Twilla worked for Idexx Laboratories for 7 years before coming to HVS. She loves animals but horses, particularly cow horses, are her passion. She lives in Congress, AZ with her husband, daughter, son, horses, dog, and cat.
Dr. Ruisi was raised in Wickenburg and the beautiful Arizona desert. Her passion for animals and love of the great outdoors lead her in the pursuit of a career in veterinary medicine. After serving 6 years of active duty in the U.S. Navy, traveling the world, and graduating from Washington State University - College of Veterinary Medicine, Dr. Ruisi returned home to Wickenburg in 2007. In 2012 she embarked on a new business venture to give back to the community and opened 'Hassayampa Veterinary Services'. Most days she can be found at the clinic with her dog "Lizzie". Dr. Ruisi was awarded the "Veterinarian of the Year" (2016) with recognition for Leadership and Professional Development by the VHCTAz/AzVMA. 
After retiring from a 22 year job, Maureen has enjoyed the opportunity to learn something new. She has been working and volunteering at HVS with her daughter, Dr. Ruisi. It is challenging, but she loves it!

Maureen Ruisi - Receptionist

The Staff...

Joanne Ruisi, DVM - Owner

The Doctors...

About us...