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Welcome to Gateway Veterinary Hospital

Your Veterinarian in Wentzville, MO
Call us at 636-639-6888

If you live in Wentzville or the surrounding area and need a trusted veterinarian to care for your pets – look no further. Dr. Marilyn Finke is a licensed MO veterinarian, treating all types of pets. Your pets’ health and wellbeing are very important to us, and we take every possible measure to give your animals the care they deserve.

Gateway Equine and Small Animal Clinic was established in 1986 by owner, Dr. Marilyn Finke and has been located at 1531 Wentzville Parkway since 1990.  Since that time, Dr. Finke and her staff have offered high quality, compassionate medical and surgical care to horses, dogs and cats throughout St. Charles and the surrounding counties.

If you are not familiar with our company and your first contact with us is online, we would be pleased to hear from you! Please let us know what your needs and questions are, we will be more than happy to help.  We look forward to hearing from you soon.

At Gateway Veterinary Hospital, we treat your pets like the valued family members they are.

Dr. Marilyn Finke
Wentzville Veterinarian | Gateway Veterinary Hospital | 636-639-6888

1531 Wentzville Parkway
Wentzville, MO 63385

Current News

We are working diligently during this COVID-19 crisis to remain open for all patients. The health of both owner and pet is of utmost importance right now and we ask for your cooperation. We are scheduling to allow time for one client in the clinic at a time. Please wait until clinic is free before entering and practice social distancing recommendation of 6 feet when entering and exiting clinic. If you feel ill yourself, please cancel and stay home. Please call any medication refills in so as to limit your time in the clinic. Thank you for your help and support during these uncertain days.

UPDATE 8/13/2020: In light of recent increase in COVID-19 numbers, face masks are required for entry to the clinic. Thank you for your understanding.


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Office Hours

Our Regular Schedule


8:00 am




5:00 pm


8:00 am

5:00 pm


8:00 am

1:00 pm


8:00 am

5:00 pm


8:00 am

12:00 pm





Read What Our Clients Say

  • "Ginger and I are grateful to have you as our veterinarian. Thank you for such good care."
    Nicole G. - Wentzville, MO