Four Corners MASH is where keeping your pet healthy and happy is our priority.

We are dedicated to providing the highest level of veterinary medicine along with friendly, compassionate service.

We believe in treating every patient as if they were our own, so they receive the same attention and care. We are devoted to giving our patients the best care possible at an affordable price.

*As I approach retirement, I will continue to provide emergency services to my regular small animal clients/patients as much as possible.  I am starting to take more time off and enjoy my horses.  So I am not as readily available as I have been in the past.   I am no longer taking  after hour non client calls or large animal calls, except home euthanasias.   I will provide home euthanasia services to all people for small animals, if I am available, as this service isn’t available through most clinics.




For appointments,
call during business hours:
Monday – Thursday 8-5
Fri, Sat and Sun closed

12838 Rd 24.5
Cortez, CO 81321


9080298We are a full service veterinary clinic in Cortez, Colorado, that has been providing medical, surgical, dental and vaccination services at a reasonable cost since 2002.

BUT as I near retirement, I have decided to reduce my hours to 3 days a week, so most of my appointments are done on M, T and Th.  I am not taking on any new equine clients but focusing more on dogs and cats.  I am wanting to enjoy my horses more,  so riding and camping is becoming a bigger part of my life.  That means more trips and time away from practice.  That may not be acceptable to some clients,  so please be aware of this if you come on board as a client.  I do have another clinic that helps to cover for me  when I am gone.


We have complete facilities to diagnose and treat your pet; a complete in-house lab on site.

Health Certificates
Pet Supplies – medications, health supplements, heart worm, flea prevention and control products.


All anesthetized animals are monitored with a pulse oximeter that displays heart rate and oxygen levels, and an apnea meter that indicates respiratory rate during all surgical procedures.

These prices are all inclusive unless otherwise stated, no hidden fees!

I am limiting surgery/dental patients to 60# as my table isn’t adjustable.

Feline Spay $105.00 Pregnant may have an additional charge.

Canine Spay (Pregnant or in heat will have an additional charge)

Canine Castration (additional charge for a cryptorchid  (retained testicle))


Providing a compassionate and humane euthanasia conducted in a calm, supportive manner. We do our best to accommodate your family needs.  House calls are available for this procedure.   Prices are quoted at time of appointment.


Microchipping is a safe and permanent form of pet identification designed to identify lost pets and reunite them with their owners. This is a simple non surgical procedure and can be during an exam visit.


For the convenience of our clients we provide vaccinations at an affordable cost by appointment.  There is NOT an additional office call fee, unless other services are required.

Distemper Parvo and Lepto vaccine or DAPL4 $42
Bordetella $23.00*
Rabies $20.00

FVR $45.00*
Rabies $20.00 (no wellness exam)

*includes a basic wellness exam in price


Our dental services include complete teeth cleaning with ultrasonic scaler and  polishing.

Feline Dental $135.00
Canine Dental
<20# ……..$145

ADDITIONAL FEES apply for pre-anesthetic blood tests, antibiotics, pain medications and extractions


I am less available as I approach full retirement, so will provide emergency care to regular clients/patients only. However I do not sit by the phone waiting for someone to call as days may go by without a call. I hike, walk my dogs and ride my horses as often as I can and I doing more trips. Your Emergency is important and I will be paged immediately upon leaving a message. If you do not get a return call with in a time frame acceptable to you, please utilize other resources.

For appointments call during business hours

Monday – Thursday 8-5
Fridays 8-12

12838 Road 24.5
Cortez, CO 81321



Four Corners MASH in Cortez, Colorado, is a full service clinic. It is our commitment to provide quality veterinary care throughout the life of your pet. Our services and facility is designed to assist in routine preventive care, early detection and treatment for your pets. We understand the role your friend plays in your family and we are dedicated to becoming your partner in your pets health care. Our goal is to practice the highest quality of medicine and surgery with compassion with an emphasis on client education and providing personal attention to the concerns of each animal.

Dr. Susan Grabbe is a licensed veterinarian, who treats dogs, cats and horses. Your pets health and well being is very important to us and we will take every step to give your pet the best possible care. Four Corners MASH, LLC offers wellness exams, full service surgical unit, complete dentals, blood tests, vaccinations, antibiotics and compassionate euthansia. Because we are a small practice, we can provide personal service and you will see the same doctor for every visit. Your pet can be examined in the stress free environment. This is especially beneficial for seniors and others when transportation is difficult. Surgeries can be done in our mobile clinic and your pet recovers in the comfort of your home.

Home euthanasia is handled in a calm, supportive manner.

"I don't know how this happened!"
“I don’t know how this happened!”