Welcome Friends


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.

For appointments,
call during business hours:
Monday – Thursday 8-5
Fridays 8-12

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


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 oxymeter and equipment to monitor their vital signs during all surgical procedures.

Feline Spay $95.00

Canine Spay

Canine Castration


Providing a compassionate and humane euthanasia conducted in a calm, supportive manner. We do our best to accommodate your family needs. 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 down in addition with an exam visit.


For the convenience of our clients we provide vaccinations at an affordable cost by appointment

Distemper Parvo and Lepto vaccine or DAP $38.00*
Bordetella $19.00*
Rabies $18.00

FVR $45.00*
Rabies $18.00

*includes a basic wellness exam in price


Our dental services include complete teeth cleaning with ultrasonic scaler, polishing and tooth extraction* if needed.

Feline Dental $135.00
Canine Dental
<25# ……..$146
over 85#…$180
*Additional fees apply for pre-anesthetic blood tests, antibiotics, pain medications and extractions


We try to provide emergency coverage the majority of the time. 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 occasionally go out of town. 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, there may be other resources available on the message.


For appointments call during business hours

Monday – Thursday 8-5
Fridays 8-12

12838 Road 24.5
Cortez, CO 81321



About Us


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, horses and small ruminants (alpacas, sheep and goats). 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 mobile services, including 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!”