Sacramento Animal Hospital’s Veterinary Staff

Karen Mulvihill, DVM & Partner 1990

Karen MulvihillDr. Karen Mulvihill obtained her DVM from UC Davis in 1988. After working in general small animal and emergency practice, she settled at SAH in 1990. She became a partner in the practice in 1994. Always devoted to animals, at the age of 9, Karen aspired to be a jockey turned wrangler, but decided in high school to use her talents to care and treat animals. Dr. Mulvihill enjoys all aspects of family veterinary medicine, and has a particular interest in soft tissue surgery. She is board certified in canine and feline practice by the American Board of Veterinary Practitioners.

Dr. Mulvihill has been married for over 30 years and has two adult sons, two Golden Retrievers, and one crazy orange cat named Karl. When time allows, Karen can be found skiing, hiking in the Sierras, or traveling with her family.

Erin True, DVM & Partner 1997

Erin TrueDr. Erin True originally started caring for animals who weren’t traditional companions by pursuing her masters degree in marine biology and working with California Sea Lions. She soon saw the error of her ways and went on to attend UC Davis Veterinary School, obtaining her veterinary degree in 1995. She has been with Sacramento Animal Hospital Since 1997 and became an owner in 2006.

Dr. True has a particular interest in canine reproduction and sports medicine. In addition to practicing as a veterinarian, Dr. True has been breeding and showing Australian Shepherds for 20 years under the kennel name Navarro Australian Shepherds. She actively trials dogs in conformation and herding and occasionally stumbles around the agility ring.

Diana Cortez, DVM, Partner & Hospital Director 1993

Diana CortezDr. Diana Cortez began her career at Sacramento Animal Hospital well before becoming the outstanding veterinarian she is today. Hired in 1994 as a kennel assistant, Dr. Cortez quickly established herself as an empathetic voice for the well-being of all the animals in her care. It wasn't long before she worked her way up the ladder, first to the position of vet assistant, and then to veterinary technician. She remained part of the SAH team as she completed her undergraduate education in Animal Science and her Doctorate in Veterinary Medicine, both at U.C. Davis. After a year spent in Southern California at an internship in small animal oncology, ophthalmology, internal medicine, and surgery, she returned to Sacramento Animal Hospital as an associate veterinarian.

In 2006, Dr. Cortez became a partner in the practice, sharing ownership duties with Dr. Karen Mulvihill and Dr. Erin True. Though this new responsibility represents the fulfillment of her lifelong dream of working with animals, her favorite aspect of being a veterinarian is helping the families of her patients through the process of healing and caring for their pets.

When not at the hospital, Dr. Cortez spends much of her time with her son and their dogs and cats. She enjoys watching her son play football as well as watching a good movie here and there.

Patty Nicholas, DVM & Associate 2007

Patty NicholasDr. Patty Nicholas was raised in Belmont, California with two brothers and one sister. Yes, she was the middle child. At 12 years old, she raised rabbits, lambs, and a steer named Bernard and also was active in the 4H Club. Throughout high school and college she played volleyball. She likes to say as a fun fact, her brother grew up to invent the Soni-Care toothbrush.

Dr. Nicholas graduated from San Francisco University in 1985 with a degree in Laboratory Medicine. Her specialty was Microbiology, which she worked with for 15 years. Dr. Nicholas, since being a little girl, had always wanted to be a veterinarian. In 2007, she got her “dream job” when she graduated from UC Davis Veterinary School and started working here at SAH! “The most enjoyable part of being a veterinarian,” says Dr. Nicholas,” are not only my patients, but also the pet owners, working together with a common goal in mind so everyone’s needs are met.”

Dr. Nicholas lives with her husband Larry, who is a Psychologist that specializes in family law. They’ve been married for 26 years and have one son who is married to a wonderful daughter-in-law, and they have one beautiful son. Also, living with them are their animals: two kitties, Bissel and Wally; and two border collies, Myles and Reesy. In her free time, Dr. Nicholas involves her dogs in agility, tracking, and herding. However, her main love is in obedience and she proudly holds three Obedience Trial Championships. Once a month, she volunteers for the SPCA feral cat clinic, performing spay and neuter surgeries.

Lesley Scheblein, DVM & Associate 2008

Lesley SchebleinDr. Lesley Scheblein grew up in the foothill community of Shingle Springs, California on her family's small acreage with a variety of horses, dogs, and cats. She completed her B.S in Biology at Cal Poly, San Luis Obispo, graduating summa cum laude. Dr. Scheblein returned to UC Davis to complete her Doctorate in Veterinary Medicine in 2010 with an emphasis in small animal medicine. During that time, she also worked as a technician, with many hours spent right here at Sacramento Animal Hospital.

Her favorite part of being a Veterinarian at Sac Animal Hospital is working in a close knit hospital with deep ties in the Sacramento community. She enjoys practicing medicine and especially loves Ophthalmology.

Outside of the office, Dr. Scheblein shares her life with a tuxedo kitty, Petey, and her German Shepherd, Griffin. A lover of the outdoors, she enjoys hiking, backpacking and snowshoeing with her dog. She has conquered big climbs including Mt. Whitney and is heading to Machu Picchu in Fall of 2016. Dr. Scheblein also loves hosting dinner parties with friends and loves to bake! In fact, she can always be expected to bake something delicious to share at work!

Kelby Weaver, DVM & Associate 2013

Kelby WeaverGrowing up on a llama farm, Dr. Kelby Weaver was destined to be a Veterinarian. She graduated from the UC Davis School of Veterinary Medicine in 2011; she then interned at San Francisco Veterinary Specialists, rotating through various specialties. Her passion for veterinary medicine started as a youngster but approaching college, she wanted to expand her horizons. Dr. Weaver attended a graduate program in Polymer Science and Engineering at the University of Southern Mississippi. Although she enjoyed the science, she missed her connection with animals and their people. After graduating, she moved back to California to attend veterinary school.

As a veterinarian, Dr. Weaver takes pleasure in developing relationships with her patients and clients. Her goal is to always provide the most information so the best decisions can be made for her patients. When we asked which areas were her favorite, she said she loves them all, but especially surgery/dentistry, pain management, anesthesia, and dermatology.

Dr. Weaver lives with her husband and their three dogs. Squirrel is a 5 year old, female Teacup Poodle that Dr. Weaver rescued from a shelter. Abercrombie is a 12 year old female long hair Chihuahua who Dr. Weaver commonly refers to as "fat and sassy". Riezl is the newest addition to the family, a male Standard Poodle who loves to watch the birds and attack the sprinklers. When not at work, Dr. Weaver enjoys hand embroidery (a nod to her love for surgery), garment construction/sewing, and riding around town on her Vespa.

Jennifer Koncz, DVM & Associate 2014

Jennifer KonczDr. Jennifer Koncz grew up in the Bay Area and always knew she wanted to be a veterinarian. She wanted to work in a family practice because getting to know and having a good long-standing relationship with her clients and patients is very important to her. Basically SAH and Dr. Koncz are a perfect fit!

Dr. Koncz started her career with animals as a kennel assistant at the age of 14. Throughout high school and college, she worked with a wonderful veterinarian in the Bay Area who became her mentor. She then went to the University of Oregon for her undergraduate degree, after which she worked as a Veterinary Technician for several years at a 24-hour emergency and specialty hospital. Dr. Koncz couldn't stop there and ended up attending UC Davis for Veterinary School. Graduating with honors in 2009, Dr. Koncz is a member of the UC Davis Phi Zeta Honors Society.

Dr. Koncz specifically enjoys feline medicine, internal medicine, and ophthalmology. These interests sprouted during her Veterinary Internship at Sacramento Veterinary Referral Center where she became knowledgeable and skilled in critical care, internal medicine, cardiology, and ophthalmology. We are all excited to have her as a part of the SAH team! Currently Dr. Koncz is working on getting SAH certified as a Cat Friendly Practice with the American Association of Feline Practioners.

Outside of work, Dr. Jennifer Koncz enjoys hiking, camping, going to the movies, and reading. Her mom is from Louisiana and passed on her love of cooking Cajun and Creole dishes, which she also enjoys eating! At home, Dr. Koncz lives with her fiancé; they are owned by two cats and a Lab-Boxer puppy.

Kristen Hascall, DVM & Associate 2017

Kristen HascallDr. Kristen Hascall is a California native who grew up in San Jose, California. While she originally intended on becoming a nurse, Dr. Hascall always loved animals and eventually realized she had to pursue a career caring for pets instead of humans. Now she can't imagine doing anything else! She obtained her Bachelor of Science in Systems Physiology from San Jose State University in 2013, and went on to finish her Doctorate in Veterinary Medicine at UC Davis School of Veterinary Medicine in 2017.

Dr. Hascall has a strong interest in surgery. She feels that learning to sew from her mom and woodworking from her dad had a strong influence on her interests as a veterinarian. Dr. Hascall is also nearing the completion of her Veterinary Medical Acupuncture certification, and is excited to bring this new service to patients at SAH. She has found that acupuncture is a great way to make her patients feel better in combination with the Western treatments that we are more familiar with.

Dr. Hascall loves spending time with her 10 year old fawn Doberman Pinscher, Kona, and her 4 year old flame-point kitty, Nico. In her free time she enjoys cooking and especially baking. Some of her favorites to make include jam-filled thumbprint cookies and lavender cheesecake. She is currently trying to master the macaron!

Travis Rollason, DVM & Associate 2017

Travis RollasonDr. Travis Rollason was born and raised in sunny San Diego, California. Travis earned his undergraduate degree in Biology at San Diego State University, graduating summa cum laude in 2012. While at SDSU, Dr. Rollason worked as a small animal veterinary assistant, and also participated in organized veterinary relief work to communities in Mexico. While there, he helped organize surgical procedures and provided medical supplies for animals in underserved areas. In 2017, Dr. Rollason achieved his lifelong dream of becoming a veterinarian, completing his Doctor of Veterinary Medicine degree at the University California, Davis.

Dr. Rollason joined the team at Sacramento Animal Hospital as an associate veterinarian in 2017. He chose to join SAH because its values align so well with his: Client relationships above all else. He considers pets as members of the family, and believes that the human-animal bond is a very special component. He loves using modern medicine to improve the lives of both his clients and their furry friends. His interests in the field of veterinary medicine include ophthalmology, neurology, dermatology, and preventative medicine.

Outside of the hospital, Dr. Rollason enjoys personal time with family, friends, and his pets. His hobbies include exploring new hiking trails as well as traveling internationally to experience different cultures and taste different cuisines.