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.

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.

Lauren, Veterinary Technician

Ever since Lauren knew what a veterinarian was, she knew that she wanted to be one. She is currently working towards this goal and will graduate from Colorado State University with her undergraduate degree in December. What little time she doesn’t spend studying, Lauren enjoys reading, playing music, and attending concerts.

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.

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.

Kari, Veterinary Assistant

Kari was born and raised in Brighton, Colorado on a farm. She raised goats and worked at a petting zoo and her love for animals blossomed from there. Kari’s hobbies outside of work are reading, hiking, cooking, and enjoys various arts. 

Kari has three animals at home, Koda being the oldest and the only dog. Luna being the second oldest and a sassy torti and Jj being the youngest and a typical orange tabby. 

Dr. Iana Strakh – Associate Veterinarian 

Sara, Certified Veterinary Technician, Lead Technician

Yareli , Veterinary Technician

Leslie, Veterinary Technician

Bailey, Veterinary Assistant

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 – 6:00 PM
Sun: Closed

Memorial Day May 31st: Closed
November 24th: Closing at 3 pm and reopen Saturday 11/27. Regular office hours on Sat.

We will be closed on 12/24 -12/25 and 12/31-1/1/2022

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