Our Veterinarians

Our experienced and friendly staff of Chicago veterinarians has worked together as a family at Mont Clare for many years. Staying up-to-date with the latest diagnostic and treatment techniques, we work as a team to analyze your pet's health care needs. If you're looking for the best vets in Chicago, you’ve come to the right place!

Richard Green, DVM, Medical Director

Richard Green, Doctor of Veterinary Medicine and founder of Mont Clare Animal Hospital is a graduate of the University of Illinois at Champaign, Urbana. He graduated in the class of 1969.
Prior to opening Mont Clare Animal Hospital in 1973, Dr. Green spent two years in New York City as Associate Veterinarian to the President of the New York City Veterinarian Association and also worked at a veterinary practice in Palatine, Illinois from 1971 to 1972.
Dr. Green is one of the original founding veterinarians of the Chicago Veterinary Emergency Services Association.

Sandra Mendez, DVM
Dr. Sandra Mendez joined the veterinary staff of Mont Clare Animal Hospital in April 2006. She graduated from the University of Michoacan, Mexico in 1990.
Her primary interests are in small animal internal medicine and surgery.
Dr. Mendez is a member of the AVMA, Chicago VMA, and the ISVMA.



​Lisa Mortensen, DVM
Dr. Lisa Mortensen is a graduate of Iowa State University 2010. She was the Student Chapter President of the American Association of Feline Practitioners in 2008/2009.
Dr. Mortensen’s primary interests are diagnosing and treating a variety of illnesses. She loves working with cats and their special parents, but also has an ability to make personal connections with clients and patients both dog and cat. She often goes above and beyond with patients and clients no matter large or small.
She has seven years’ experience working in fast paced hospitals in the Western Suburbs and is eager to begin to meet you and all your pets. Dr. Mortensen has a fantastic son named Oliver , and many pets including , two bulldogs , two cats , and other interesting creatures .