4501 North Lincoln Avenue
at Sunnyside in Lincoln Square
Chicago, IL 60625

About the Doctors

Meet our veterinarians…


Dr. Jewell

A native of the South Shore neighborhood in Chicago, Dr. Leonard Jewell graduated from Tufts School of Veterinary Medicine in North Grafton, MA in 1998. After a brief stint in emergency and small animal medicine in MA, Dr. Jewell worked at All Creatures Animal Hospital in Lake Zurich, IL. Then moving to Palm Springs, CA, Dr. Jewell worked at Desert Animal Hospital. While there, he advanced his small animal oncology, internal medicine, emergency medicine, and surgery skills.

Dr. Jewell returned to Chicago and worked as a contract veterinarian in and around the city for four years. After working at nearly fifty practices, Dr. Jewell began to envision a more personalized hospital experience than what he saw at most facilities. That vision was realized when he opened Jewell Animal Hospital in March 2007. And it’s why Dr. Jewell will treat your pets with the same loving care that he dotes on his two sixteen-year-old alley cats, Elsa and Tiger.


Dr. Czekala

Dr. Anna Czekala was born in Poland but moved to Long Island, NY at 9 years old. She obtained her undergraduate degree in Biology from SUNY Geneseo in NY. She earned her Doctor of Veterinary Medicine from the University of Illinois. After graduating vet school, Dr Czekala completed a Small Animal Rotating Internship at the Animal Medical Center in NYC. While there, she rotated through Emergency/Critical Care, Internal Medicine, Surgery, Ophthalmology, Radiology and Dermatology.

In 2010, she moved to Chicago and began working in the Emergency/Critical Care department at the Veterinary Specialty Center. She joined our practice in July 2015. Dr. Czekala is a member of the American Veterinary Medical Association, Veterinary Emergency and Critical Care Society and the Chicago Veterinary Medical Association. She has two dogs, a Pit Bull mix named Sabina and a Mastiff/Great Dane mix named Franklin.


Dr. O'Connor

Dr. Lauren O'Connor was born and raised in California. She graduated from the University of California, Berkeley in 2003. She moved to Chicago in May 2009 and originally joined our practice in August 2010. After a hiatus back to California and then Ohio, she is now back with us to stay. Dr. O’Connor graduated from the University of Illinois, College of Veterinary Medicine in 2009. She enjoys all aspects of small animal medicine.

Dr. O’Connor has a lab/beagle mix named Lily who constantly gets into trouble. She also has three very spoiled cats, including one with special needs. Her husband’s collection of reptiles and amphibians also share her home. When she is not working, she spends her free time gardening. She’s also hiking, backpacking, and camping her way toward visiting every National Park in the US.


From the Doctor...

My goal at Jewell Animal Hospital is to provide a warm, caring, and flexible environment for pets and their owners. With an emphasis on great customer service and the latest medical, surgical, and pain management techniques, I want clients to feel that their companion animals are getting the best possible care available anywhere in Chicago!


Our FourSight program offers complimentary services to service dogs for the blind and visually impaired, and their owners. View

Our goal is to Provide a

Caring & Flexible


for our Pets & Owners

Jewell Animal Hospital is

Proud to be Green

Our files are Paperless
and we Recycle!