Michael Knehr, DVM

Our Team

Dr. Knehr graduated from Purdue University Veterinary School in 1993. His areas of interest in the veterinary field include orthopedic and soft tissue surgery, diagnostic ultrasound, pain management, and senior pet care.

Dr. Knehr loves to go fly fishing with his golden retriever named Sage, who is a great fishing partner. He also loves to go hiking and swimming with his boys and enjoys watching New York Yankee baseball as often as possible. He has two beautiful cats; A-Rod (yes, he is a really big Yankee fan) and Gronk (his wife is a big Patriots fan); and one feathered family member named Kiwi, an eclectus parrot.

Dr. Knehr’s goal as a veterinarian is to provide compassionate and knowledgeable veterinary care for pet family members and for the community. He invites you to visit the hospital and make Sun City part of your pet’s health care team.


Melissa Sigal, DVM

Our Team

Dr. Sigal graduated from veterinary school at Louisiana State University in 2006. She has a Labrador mix named Wonka, and a cat named Voodoo. Her primary focus within the hospital is dentistry. Dr. Sigal adopted Voodoo as a kitten who needed full mouth extractions due to severe juvenile gingivitis. During her free time she likes spending as much time as she can with her family especially her son Sawyer.


Lisa Noworyta, DVM

Our TeamDr. Noworyta graduated from veterinary school at Purdue University. She was born and raised in Indiana and moved to sunny Las Vegas after the completion of her degree. Her veterinary interests include dermatology, internal medicine, and dentistry. Outside of work, her family keeps her busy. She is married to her husband, Mike and they have one son, Tyler, and one daughter, Khloe. Her animal family includes two dogs, a Beagle named Jake and a hound mix named Kaiya. She enjoys outdoor activities such as visiting our local parks and water park, going to baseball games, and traveling with her family.


Sarah Larosche, DVM

Our TeamDr. Larosche is a true Auburn fan, having both her Bachelor’s degree and DVM from Auburn University. Her veterinary interests include clinical pathology, internal medicine, pain management, ultrasound, and feline medicine.

She lives with two cats, Punkin and Cassie, that always keep her on her toes with their mischief. She was born and raised in Huntsville, Alabama where she developed her love for reading, riding her ATV, martial arts, and video games. In her spare time, she can be found enjoying a good book, cheering for the Auburn Tigers, or exploring nearby attractions.


Lauren Shamkhalov, DVM

Our Team
Dr. Shamkhalov graduated from veterinary school at the University of Missouri. She was born and raised in Buffalo, New York and moved to Las Vegas after completion of her degree. Her veterinary interests include soft tissue surgery, dentistry, canine reproductive medicine, and small mammal exotic medicine.

Dr. Shamkhalov realized the importance of the human animal bond at a very young age and has since worked toward strengthening that bond between people and their animal companions. She and her husband, Eduard, have three schnauzers; Scruffers, Smore, and Shadow; and a ferret named Slinky. In her free time she loves to travel, hike, visit wineries, and try new restaurants.


Joseph Baker, DVM

Our Team
Dr. Baker is a graduate from the University of Missouri College of Veterinary Medicine. His professional interests include general surgery, weight management, pain management and dentistry.

Dr. Baker enjoys cycling, yoga, playing electric guitar and spending time with his fearless cat Fiona.

His goal is to always address your needs and to improve the well-being of your pet with utmost compassion.


Lauren McBride, DVM

Our Team
Dr. McBride completed her veterinary degree at the University of Glasgow in Scotland. Her veterinary interests include internal medicine, diagnostic imaging, ophthalmology, and soft tissue surgery.

During her time in Scotland, Dr. McBride discovered a love for exploring the rural countryside as well as developing experience in farm animal clinical medicine. Born and raised in Southern California, her childhood home was always full of dogs, cats, birds, and other species, and she has a passion for improving the welfare of all animals large and small. In her spare time she enjoys surfing, hiking, and reading.