Meet Our Doctors


Dr. Randy D. Aronson VMD, CCRT

Veterinarian/Practice Owner

Dr. Randy Aronson has dedicated his professional life to providing innovative veterinary care for companion animals of Arizona. He is never satisfied with the status quo and is determined to provide the best care for his patients and the people who love them. Advancing preventative and diagnostic capabilities as well as enhancing treatment outcomes is his passion.

Dr. Aronson augments his over 35 years of traditional veterinary experience as both a practice owner and an accomplished practitioner through the completion and certification in complementary modalities. Dr. Aronson has extensive training in rehabilitation therapy, Chinese food therapy, Chinese herbal medicine, and acupuncture. His gift is seeing the big picture, embracing the concept of optimum health and accurate diagnoses, caring for the whole animal, not simply treating disease symptoms.

Inspired by the synergy of integrating conventional and complementary medicine, Dr. Randy Aronson and his wife, Dr. Geren Thurston, set out to create a new paradigm of care for companion animals of southern Arizona. PAWS Integrative Veterinary Center is his passion and shared vision for the future of veterinary medicine.

Dr. Aronson grew up in Philadelphia dreaming of becoming an equine veterinarian or a NBA star. He received his undergraduate degree from George Washington University. He went on to pursue his Veterinary Medical Degree from the University of Pennsylvania. He graduated in 1980 receiving the Leonard Pearson award, the highest honor of student achievement. He completed a combined small animal Internship in 1981.

When Dr. Aronson is not caring for animals and educating clients at PAWS, he is busy providing seminars, Skype conferences, Key note speaking, consulting for pet health product companies, providing consultations with pet owners through Google hangouts, and hosted a call-in talk radio show, Radio Pet Vet with Dr. Randy for over 10 years. He enjoys educating pet owners through both public speaking and column writing. He is a member of the National Speakers’ Association; he has published numerous articles in both national and local periodicals. To ensure quality and accountability for the safety and benefit of his patients, he directed and co-formulated 2Docs, a comprehensive line of vitamins and dietary supplements.

Although he loves biking, hiking, fishing, gardening, and reading, most of his free-time is spent goofing around with his son, Benjamin and daughter Livia.

Dr. Geren T. Thurston DVM

Veterinarian/Practice Owner

For Dr. Geren Thurston, a passion and appreciation for animals combined with a love for science and problem solving shaped a childhood dream of becoming a Veterinarian. As soon as she had her driver’s license, she secured her dream job cleaning kennels and walking dogs at a Veterinary Clinic in Nebraska. Through this early experience, she was transformed by the profound human-animal bond, the magical connection of meaning and joy that we share with animals. Witnessing the important role medical care, disease prevention and education have in the lives of people and their beloved pets, resolved her to continue her pursuit of Veterinary Medicine. Sharing in, protecting and prolonging the relationships that we experience with animals is her enduring source of inspiration and fulfillment.

Dr. Geren Thurston fell in love with Tucson during her undergraduate education, earning a Bachelor of Science degree from the University of Arizona in 1997. She attended Veterinary School at Colorado State University in Fort Collins and received her D.V.M. degree in 2001. She was recognized through varied academic and service achievements.

Upon completion of Veterinary School in 2001, Dr. Geren Thurston eagerly returned to Tucson to begin her career caring for dogs and cats. She enjoys the challenges and rewards of general practice, from puppy and kitten exams to end of life care, as well as the preventative, surgical and medical services in between.

After many years of planning, Dr. Geren Thurston and her best friend & husband, Dr. Randy Aronson, opened PAWS in July of 2008. PAWS is the embodiment of their shared passion and vision for the future of Veterinary Medicine, as well as their commitment of caring for pets and people of Southern Arizona.

In her free time, she loves goofing around with their son, Benjamin and daughter, Livia. She enjoys being outdoors, going to the movies, working around the house, hiking and horseback riding.

Dr. Justin C. Keaner, DVM, MS, cVMA

Dr. Justin C. Keaner, DVM, MS, cVMA

Associate Veterinarian

Dr. Justin Keaner was born and raised in Michigan. He spent his childhood exploring the outdoors and collecting every insect, reptile, amphibian and small mammal he could catch. After deciding that entomology was not his calling in life, Dr. Keaner attended the University of Michigan and earned a bachelor’s degree in biology. He then moved to Boulder, Colorado and began working as a veterinary technician. This position enriched his interest in veterinary medicine and the importance of the human-animal bond. Dr. Keaner continued his education at Colorado State University where he received a master’s degree in biomedical sciences. Dr. Keaner then attended the University of Wisconsin where he earned his DVM degree and met his wife, who is also a veterinarian.

Upon completion of vet school, Dr. Keaner returned to Colorado to begin his career as a general practice veterinarian caring for cats, dogs, and exotic pets. Some of his specific areas of interest include dentistry, soft tissue surgery, and preventive medicine. Dr. Keaner strives to work with pet owners to develop care plans specific to the individual needs of their pet. As a vet, he feels truly rewarded by the positive relationships that he develops with his patients and their guardians.

Dr. Keaner typically spends his time away from work discussing veterinary medicine with his wife, who is an emergency vet, or at the dog park with his dog, Dutch. He also enjoys hiking, camping, fishing, and mountain biking.

Dr. Elizabeth Jobe DVM, CCRP, CVMA

Dr. Elizabeth Jobe DVM, CCRP, CVMA

Associate Veterinarian and Rehabilitation Director

Dr. Elizabeth Jobe was born and raised in the South, near Atlanta, Georgia, though she doesn’t have a southern accent to prove it! Her family knew she would become a veterinarian upon the discovery of her sleeping outside in the doghouse with the family pets as a child. Dr. Jobe grew up playing soccer and competed for the USA National team and Clemson University, graduating with a Bachelor of Science degree in Animal and Veterinary Sciences in 2007. Upon graduation, Dr. Jobe attended The University of Georgia College of Veterinary Medicine and graduated Summa Cum Laude in 2012.

Excited to get out West and to be in the mountains, Dr. Jobe moved to Santa Fe, NM to start her veterinary career; however, her love for physical therapy and sports medicine led her to pursue a more specialized career as the Rehabilitation Director and Medical Director for multiple hospitals in the northern Denver, CO area. Dr. Jobe joined the PAWS team as both Rehabilitation and General Practitioner in 2016.

Due to numerous knee surgeries from soccer injuries, Dr. Jobe spent a lot of time in physical therapy igniting her passion and appreciation for physical medicine. She received her certification as a Canine Rehabilitation Practitioner (CCRP) in 2013 through the advanced training program with the University of Tennessee and received her certification as a Veterinary Medical Acupuncturist (cVMA) with Colorado State University in 2014. Additionally, Dr. Jobe completed the Canine Course with the International Academy of Medical Massage for Animals in 2013. She is a USDA Accredited Veterinarian and member of the American Veterinary Medical Association.

Whenever she’s not in the office, you can find Dr. Jobe hitting the trails and training for XC mountain bike races as a member of CZ Racing. Traveling is a passion of hers, and she hopes to hike through Patagonia some day! Downtime involves cooking, reading, and relaxing with her AKC Canine Good Citizen named Bailey, who dances for her morning kibble, cool-cat Baloo, who doubles as a fur scarf at night, and McFly, the Siberian Forest Cat who likes jumping in the shower!

Dr. Carine Klimentidis, DVM

Dr. Carine Klimentidis, DVM

Associate Veterinarian

Dr. Carine Klimentidis was born in New York City, but grew up in Texas, where she graduated from Texas A&M University’s School of Veterinary Medicine. She worked at a mixed animal practice in upstate NY for a year and then moved to Baltimore Maryland, where she worked at a small animal practice for 12 years. After getting her fill of snow and ice, she decided to move back south for some warmth and also to be closer to family.

In her spare time she likes to visit with her niece and nephew and start to explore Tucson and the surrounding area. She grew up riding horses and hopes to find some places in Tucson to enjoy the company of horses. She has a cat, Ginger who she’s had since she was a tiny kitten who will be turning 19 in a few months and a horse, Halie, who currently lives in Maryland.

Her special interests include internal medicine, ultrasound and always learning new things.

Dr. Rory Keefer, VMD

Dr. Rory Keefer, VMD

Associate Veterinarian

Dr. Rory Keefer was raised on a retired dairy farm south of Pittsburgh, PA. His earliest memories of animal companionship in his life include hiking in the woods with his dogs, and raising chickens in his bedroom in oversized bird cages. His parents could have only guessed that he would pursue a career in animal care!

Dr. Keefer earned his Bachelor of Science in Biological Sciences from the University of Pittsburgh. His time between his studies varied with volunteer opportunities at The Animal Friends of Westmoreland Shelter caring for dogs and cats, assisting with husbandry, and wildlife rehabilitation at a small wildlife center known as Wildlife Works Inc., and interning at the Pittsburgh Zoo and PPG Aquarium. What paved his path toward veterinary medicine and PAWS Veterinary Center was his experiences at K.Vet Animal Care where he was exposed to state-of-the-art preventative care and integrative care for their patients. Dr. Keefer completed his Veterinary Medical Degree at the University of Pennsylvania in 2020.

Dr. Keefer chose to move to Tucson as an escape from the cold and a chance to explore – he enjoys being outdoors as much as possible and has hiked to the summit of Mt. Wrightson twice!

Dr. Rory Keefer enjoys preventative care, dermatology, dentistry, and expanding his integrative knowledge base. He is currently enrolled in a veterinary acupuncture course and intends to continue his integrative studies to offer the best comprehensive care to his patients. All of his loved ones including an Australian Shepherd, a Blue Heeler, a Ragdoll, and two Domestic Shorthairs all reside back in PA with his family currently, but he is open to adopting pets in need in Tucson.

Proudly serving the pets of Tucson, AZ and beyond.

At PAWS Veterinary Center, we deliver exceptional service through effective communication, client education and sincerity of purpose. We empower and educate clients, allowing them to make informed choices and participate in their pet's care. We look forward to seeing you soon!


Phone: 520-888-7297
Fax: 520-888-2565
Email: [email protected]


300 E River Road
Tucson, AZ 85704
Click here for directions.


Mon - Fri: 8:00am - 5:00pm
Sat: 8:00am - 1:00pm
Sun: Closed

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