Sahara Pines Animal Hospital

6533 West Sahara Avenue
Las Vegas, NV 89146-2909


Our Doctors

Dr. Daniel Ulitchny and Dr. Kristine Ziegler Ulitchny  

This husband and wife team have owned and operated Sahara Pines Animal Hospital since 2001.  They both consider it a privilege to have such dedicated clients.  Their familiarity with clients allows for efficient, quality care with a personal touch.  Their three children are a source of pride for both of them and keep them busy outside of clinic hours.  Drs. Ulitchny and Ziegler look forward to making your acquaintance and taking care of your four legged family members.

Sahara Pines Animal Hospital Las Vegas, NV Dr. Ulitchny

Daniel Ulitchny, DVM

Dr. Ulitchny graduated from Kansas State University and has been practicing in Las Vegas since 1998.  He has a special interest in abdominal ultrasonography.  Most of all he enjoys fostering long term relationships with his patients and clients.  

A native of Kansas, he has grown to love our desert environment and life in Las Vegas.  When not practicing you can find Dr. Ulitchny biking, hiking or off camping with Dr. Ziegler and their children.

American Institute of Medical Laser Applications Certified (AIMLA)



Sahara Pines Animal Hospital Las Vegas, NV Dr. Ziegler

Kristine Ziegler, DVM

Dr. Ziegler is native to Las Vegas and a true desert rat! Her parents moved to Las Vegas in 1966 for her father's career as a nuclear physicist and her mother's as a medical technologist at Sunrise Hospital. Dr. Ziegler always knew she would be a veterinarian, but her first introduction to the field was when she was hired as a kennel attendant by Dr. Pennell at the age of 16. She continued to work various positions for him over the next 8 years. And yes, he did have something to do with her attending Washington State University where she earned her Doctorate of Veterinary Medicine in 1998. 

Dr. Ziegler has special interests in rescue work, dentistry, internal medicine, and of course any adorable kitten or puppy. She loves her loyal clientele, as many she has known her entire life. She is also an anesthesia examiner for veterinarians who graduated from non-accredited veterinary colleges around the world. 

Aside from her involvement in the veterinary profession, Dr. Ziegler enjoys the outdoors, cooking and most of all being a mom. She is the proud mama to 3 teenagers, including twins. She is very entertained by watching and volunteering for swim meets, lacrosse games, robotic competitions and various music performances. Her family also includes 5 fur babies. 

American Institute of Medical Laser Applications Certified (AIMLA)

Fear Free Certified 





Dr. Jon R. Pennell MS, DVM 

Dr. Pennell was born and raised in Southern Idaho where his father was a mixed animals veterinary practitioner and his mother was a registered nurse. Through his parents he has developed an interest in medicine. When he was young, he was very active in Boy Scouts and received his Eagle Scout award. He received his B.S. from the university of Arizona in 1972 and his M.S. in veterinary science from the University of Idaho in 1976. He then graduated from Washington State University College of Veterinary Medicine in 1981. He has been practicing veterinary medicine in Clark County for over 30 years and has a special interest in veterinary dentistry. In 1997, the Governor appointed him to serve on the Nevada State Board of Veterinary Medical Examiners. He served for a total of 9 years and was honored to be President during his last two years. He is also a past President of the Western Veterinary Conference, a current member of the American Veterinary Dental Society, the Nevada Veterinary Medical Association, and the American Veterinary Medical Association where He also serves as Nevada's Delegate.

As much as he truly loves his work, this is nothing compared to the love he has for his family. In 1973, he married his amazing wife, Kathy. Together they have two children, and are blessed with 4 beautiful grandchildren. He enjoys being a grandfather immensely. Any spare time he has is dedicated to Family activities. 


Dr. Jennifer Fenner, DVM