About Us

Get to know WellHaven Pet Health Denver!

Dr. Johnson, Principal Doctor

Dr. Tanner S. Johnson was born in South Carolina, but grew up in the sunshine state of Florida. His first job was as a kennel assistant in high school, and he fell in love with the veterinary field. Dr. Johnson attended the University of Florida for both his undergraduate and doctoral studies, graduating in May of 2016. Following the call of adventure, he moved to Colorado shortly after and has never looked back.

 Dr. Johnson started at WellHaven Park Ave. in 2018 and became Principal in the fall of 2019. It is his goal to ensure this hospital continues to provide the best care at the most reasonable pricing possible. He wants for each and every pet to receive the same treatment as if they were his own, and strives to provide as much information for pet owners as possible.

 During his studies, Dr. Johnson received an honorary certificate in veterinary dentistry and is a very strong advocate for dental health in alll pets. His other professional interests include soft tissue surgery, dermatology, and behavior. When not in the hospital he enjoys reading, board games, and snuggling his pups. Dr. Johnson lives in Aurora with his partner and two dogs: Terra, an older chocolate lab, and Dante, a knucklehead pittie mix.

Dr. Iana Strakh – Associate Veterinarian 

Dr. Strakh is a veterinarian from Moscow, Russia. She graduated in 2017 from Moscow State Academy of Veterinary Medicine and Biotechnology. Ever since she was a child she was passionate about helping animals, taking care of all the stray dogs in her neighborhood. So, when the time came to choose a career, she never had second thoughts on who she wanted to be.

She moved into the United States right after graduation and worked her way through an extensive licensing process. Her professional interests include critical care, ultrasonography, surgery, and cytology.

Karen, Practice Manager

Karen is a Colorado native who fell in love with animals at a young age of 4 when she got her first dog, Greif of Candy Cane the Second. She has raised 6 human children and countless of the fur, feather and scale variety. Her career in veterinary medicine was inspired by her daughter, who she is proud to say is now a veterinarian! Karen has devoted 13 years to the field and hasn’t looked back! Her hobbies include spending quality time with her husband and family, working in her yard, crocheting and playing with her fur babies.

Sara, Certified Veterinary Technician, Lead Technician

Sara is a Colorado native and a Certified Veterinary Technician of 6 years who enjoys surgery, wound care, clinical pathology, and parasitology. Sara graduated from Pima Medical Aurora in 2017. Sara has experience in specialty, emergency, and shelter medicine, she greatly enjoys working with animals. 

When not at work Sara enjoys spending time with her young son, riding horses, listening to music, reading, and has a passion for the paranormal.

Leslie, Veterinary Technician

Leslie has been a Vet Tech for 17 years. She loves spending time with her husband and their 4 dogs. She is a Colorado native. Leslie loves to read in her spare time and watch movies. She loves true crime shows.

Alanna, Veterinary Assistant

I grew up in Ohio then moved to CO in 2019 to enjoy the outdoors more. My hobbies outside of work include hiking, reading, swimming, playing video games or spending time with my friends.

I have a dog named Timber who’s my little adventure buddy. My passion for animals came for me at an early age from dogs, cats, and exotics – I love them all and owned quite a bit.

Ismael, Veterinary Assistant

Ismael has been in the vet field for 7 years as an assistant. He looks forward to caring for your fur babies and helping with any concerns that you may have about their health.

Meggan, Lead Receptionist

Meggan is a Colorado native who’s always had a passion for animals at a young age. She began her journey in the veterinary field as a receptionist back in 2019. She relocated to Washington state in 2019 where she was placed at one of the Well Haven’s offices located in Vancouver. Meggan returned to Colorado this summer.

 Like a lot of Coloradans, she is always up for an adventure.  Meggan has a love for the great outdoors and enjoys camping, fishing, kayaking, etc. She spends a majority of her time with her dog Aly, family, and friends, as well as having a green thumb with her newfound hobby/obsession for horticulture which began in Washington.

Kimberly, Receptionist

My name is Kim, I was born and raised in the mile high city of Denver, Colorado. I’ve been in this amazing field for about 4 years. I’ve always had a strong connection with animals since I was a child and my love grew stronger. I started working here at WellHaven Park Ave a couple months ago, this is a great place work. The love and passion that comes out of this clinic is by far amazing. 

When I’m not working, I like to spend time with my family and my fiancé. I love the outdoors, cooking, reading, and spending time with fur babies Marlin and Sly 

I’m looking forward in meeting you and your wonderful pets!!

How to contact us:


3480 Park Avenue West, Building G
Denver, CO 80216
Click here for directions.


Mon – Fri: 7:30 AM – 6:00 PM

Sat: 8:00 AM – 4:00 PM

Sun: Closed

Memorial Day May 30th: Closed

WellHaven Pet Health Denver
3480 Park Avenue West, Building G
Denver, CO 80216

To our loyal clients,  

To provide you and your pets with the best possible care, we have made the decision to merge our WellHaven Park Ave. Location with our South Colorado Blvd. location. All our staff from this closed location is moved over to our South Colorado Blvd. location. They are located a short drive away from WellHaven Park Ave., along South Colorado Blvd and I-25.  

Our South Colorado Blvd. hospital is equipped with new state-of-the-art equipment to service your pets. We understand that you have come to love and support the team at WellHaven Park Ave; we are excited to announce that the Park Ave. team will be moving to our South Colorado Blvd. location. Although we are merging these locations, we believe that you will experience the same passion and professionalism you have come to experience at WellHaven Park Ave. We encourage you to check out the hospital's website or social media platforms listed below to gain a better understanding of the hospital and the team! 

We appreciate your loyalty as a client and for those of you who choose to continue services with WellHaven at our South Colorado Blvd. location, we would like to offer you a discount on your next visit. 

Thank you for your support and we look forward to scheduling you soon.