Our Team

Dr. Scott Kollen DMD
General Dentist
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Hi everyone! I’m Dr. Scott Kollen (rhymes with “pollen”) and I’m excited to welcome you to River District Dentistry! I grew up in Pitt Meadows, BC, and spent most of my teen years playing competitive basketball. Plenty of those years were also spent in orthodontic treatment: full metal jacket braces, a headgear halo, slurp-inducing elastics… you name it, I had it strapped in my mouth. Eventually, the braces came off, I graduated, and then completed my undergrad and dental degrees at the University of British Columbia.After graduation, I practiced in Comox on Vancouver Island and then Calgary, Alberta for a few years before coming back to BC.
When not seeing patients, some of my favourite outdoor activities include surfing, flyfishing, and hiking with my wife and doggo! My upbringing near the water means I love travelling to surf spots, from toasty Indonesia up to cold and foggy Wales, and all up and down the coast here in the PNW. If I’m indoors, I’m probably working out, swimming, or reading a good book. I’m looking forward to meeting you here at River District Dentistry!
View Dr. Kollen's Credentials and Continuing Education Experience

Dr. Calvin Biddle
Hello patients of River District Dentistry! My name is Dr. Calvin Biddle and I’m very excited to join the team here. Born and raised in Vancouver, I grew up not too far away from the River District area in the Marpole neighbourhood. I have grown to love the city of Vancouver with its diverse culture, close proximity to nature, and the weather (oddly enough, I enjoy walking in and listening to rain!). Due to this, I decided to pursue my undergraduate as well as my dental degrees at the University of British Columbia.
Outside of dentistry, you can find me trying to stay active by working out at the gym, going for a jog, or strapping on a backpack for a hike. Although I have never been the greatest athlete, I enjoy playing any kind of sport and I am a total geek for the NBA. I also like exploring the food scene here or visiting the nearby cafe to fuel my coffee addiction.
I’m looking forward to meeting you here at River District Dentistry!

Dr. Kathryn O’Donnell
Hey everyone! My name is Dr. Kathryn O’Donnell and I am very excited to be joining the teamat River District Dentistry. I grew up on the east coast of Canada in Cole Harbour, Nova Scotia(hometown of Sidney Crosby!) I completed my undergrad at Acadia University and then wenton to earn my dental degree at Dalhousie University in Halifax.
After graduating, I was looking for a change, so I packed up a U-haul and drove across thecountry to Vancouver. I completed a General Practice Residency at UBC where I gainedexperience in hospital dentistry at VGH, UBC Hospital, BC Cancer and the Children’s Hospital.Despite the rain, I quickly fell in love with Vancouver and all it has to offer—the amazingcuisine, the beaches, the outdoor adventures, the mountain views and the mild winters.
Whatmore could I ask for?While I’m not working, you can find me skiing at Whistler, golfing, trying new coffee shops,going to fitness classes, biking along the seawall, or going on road trips with friends (jamming toTaylor Swift along the way). I’m very excited to be staying in Vancouver and looking forward tomeeting all of you at River District Dentistry!