GreenTree Animal Hospital

At GreenTree Animal Hospital, we understand that your pets are an important part of your life. Our highly trained staff will treat you and your pets with professionalism and courtesy while providing you with the very best veterinary care available. Our full-service practice offers a variety of services intended to promote your pet’s overall health and longevity. It is our privilege to care for you and your pets, so call today to learn about our services or schedule an appointment.
  • Mon, Tu, Th, Fri: 7:30 AM-6:00 PM
  • Wed: 7:30 AM-7:00 PM
  • Wed: Closed 2:00 PM-3:00 PM
  • Sat: 8:00 AM- Noon
  • Sun: Closed
  • (Dr.'s Hours 8am-6pm)
  • After Hrs ER: 847-548-5300
  • Laura Brown, DVM

    Veterinarian/Owner
    Dr. Brown graduated from the University of Illinois College of Veterinary Medicine in 1987. She also received her undergraduate degree in Biology at Illinois. Dr. Brown began her veterinary career in Southern California primarily involved in equine medicine in thoroughbred race horses. She transitioned her focus to small animal medicine in 1989 when she joined Mission Animal Hospital in Oceanside, Cailfornia. She remained at Mission until 1992 when her husband's job took the family to southeast Idaho. There Dr. Brown specialized in small animal medicine and surgery. Dr. Brown joined DuPage Animal Hospital in Villa Park, IL in 1993, (another husband transfer), and practiced small animal medicine until August of 1996 when she opened GreenTree Animal Hospital in Libertyville. Dr. Brown lives in Libertyville with husband Kris, daughters Sara and Clare, her two cats "Brownie" and "Lacey", and her allergic Golden Retriever, "Simon".

    Years in Practice:
    Feb 07, 1987
    Education:
    U of I College of Veterinary Medicine
  • Sara Estrick, DVM

    Veterinarian
    Dr. Sara Estrick graduated from Iowa State University College of Veterinary Medicine in May, 2000. She is an Iowa native and received her Undergraduate Degree at Cornell College in Mt. Vernon, Iowa. Dr. Estrick practiced for one year at a small animal hospital in Kenosha, WI before coming to GreenTree in 2001. General medicine, behavior, and geriatric medicine are special areas of interest for Dr. Estrick. She lives in Grayslake, IL with her husband Neil, sons Jack & Henry, as well as a crew of pets, dogs "Annie" and "Chip" and cat "Tilly".
    Years in Practice:
    Feb 07, 2000
    Education:
    ISU College of Veterinary Medicine
  • Deni Ianakov, DVM

    Veterinarian
    Dr. Deni Ianakov received her bachelor degrees in Animal Science and Veterinary Medicine at the University of Illinois. In May 2004, she obtained a Doctorate in Veterinary Medicine from the University of Illinois College of Veterinary Medicine. As a new graduate, Dr. Ianakov was excited to join the GreenTree Animal Hospital team in July 2004, where she is building on her strong interest in orthopedics and dentistry. Dr. Ianakov resides in Highland Park, Illinois with her husband Luis, daughter Giselle Marie, son Sebastian and rat terriers "Ziggy" and "Bijou".
    Years in Practice:
    Feb 07, 2004
    Education:
    U of I College of Veterinary Medicine
  • Laura Hardy, DVM

    Veterinarian
    Dr. Laura Hardy received her Doctorate of Veterinary Medicine from Iowa State in 1986. She then served a year-long internship at the Veterinary College of Kansas State University. Dr. Hardy has interests in the care of exotic pets, soft tissue surgery, dentistry, and general medicine. Born in Cleveland Ohio, Dr. Hardy has also lived in New York, Virginia, Iowa, Oregon, and California before moving to Illinois in 1990. Before coming to GreenTree, Dr. Hardy worked at Dundee Animal Hospital. Along with her husband, Mark, and two children, Sarah and Sam, Dr. Hardy shares her home with dogs "Tucker" and "Penny", two cats, "Ace" and "Dixie", and a menagerie of fish, frogs, snakes and lizards.

    Years in Practice:
    Feb 07, 1986
    Education:
    ISU College of Veterinary Medicine
  • Susan-McKenzie, DVM

    Veterinarian
    Sue McKenzie is a 1992 graduate of Michigan State University. She has practiced in St. Louis, Missouri at Hickey College as a Veterinary Technician Educator and attending veterinarian and in Albuquerque, New Mexico as a small animal Veterinarian, seeing cats, dogs and small pocket pets. Dr. McKenzie has now moved to the Chicago area with husband Jeremy and two children Ben and Jillian. She currently has no four legged pets as Jillian is allergic to dogs and cats. Hopefully she will grow out of it soon as Ben has begun asking for a puppy on a regular basis.
    Years in Practice:
    Jun 19, 1992
    Education:
    Michigan State University
  • Doreen Taylor, CVPM

    Hospital Manager
    Doreen with Roxie

  • Cathy Reilly

    Front Office Manager
    Cathy with Tillie, Dixie and MiG