Meet Our Providers

Jim Tsou, DDS (1)

Jim Tsou, DDS

General Dentist

Educational Background: I have BS and MS in Mechanical Engineering before receiving DDS from NYU College of Dentistry. I served as general dentist in the US Army, attaining the rank of Major.

Continuing Education Courses Attended: I’m currently enrolled in the Spears Dental Education Program.

What year did you join the current practice and/or group? 2018. 

Where were you born? I was born in Shanghai, China.

Where were you raised? I grew up in the Philadelphia area. 

What is your favorite part about interacting with patients? I love educating patients on their oral health so they can make informed decisions for their well-being. 

Why do you like this practice and coming to work every day? I love coming to work at Tranquility Dental because the team is absolutely wonderful and makes work feel like a pleasure. I love the dental profession because I am able to make an immediate, impactful, and tangible improvement in my patient’s lives. 

What do you do outside of the office for fun or as a hobby? I love exploring all the sights and scenes that the Pacific Northwest has to offer. 

Pets: Doughy is my 2 year old border collie.

Sophie Prellwitz, DMD

Sophie Prellwitz, DMD

General Dentist

Educational Background: University of Notre Dame Class of 2013, University of Louisville School of Dentistry Class of 2017. 

What year did you join the current practice and/or group? 02/2021. 

Why do you enjoy the dental profession? I hope to bring a high standard of treatment that utilizes my desire to care for others while drawing from my artistic side and attention to detail. 

What is your favorite part about interacting with patients? I strive to add to the patient experience with active listening and good communication. 

Why do you like this practice and coming to work every day? I am excited to be part of a practice that puts the patient first while creating an atmosphere of calm and comfort to provide the best possible patient experience. I love the teamwork mentality within the practice and hope to continue to build trusting relationships with my team and patients. 

What do you do outside of the office for fun or as a hobby? Hiking, mountaineering, backpacking, and snowboarding. I also enjoy oil painting and acrylic pours, DIY projects, and live music/concerts. 

Where were you born? Newark, DE. 

Where were you raised? Cleveland, OH. 

Pets (significant others and kids too): Cat named Monte.

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Colby Cockrell, DMD

General Dentist & Managing Partner

Educational Background: After graduating from the University of Washington in 2003, I attended dental school at the Tufts University School of Dental Medicine in Boston, Massachusetts, graduating in 2008. 

Continuing Education Courses Attended: Implant Seminars Continuum Course – an 8 day, 88 continuing education credit intensive course with a live patient component, placing 20 implants on patients in the Dominican Republic. Ongoing Continuing Education through Spear Online Education.

What year did you join the current practice and/or group? 2010. 

Why do you enjoy the dental profession? I’m able to not just solve people’s dental problems and maintain their health, but I’m also able to cultivate relationships.

What is your favorite part about interacting with patients? I’m passionate about getting to know patients beyond their dental health – their interests, hobbies and activities. Being able to see patients multiple times a year on a regular basis allows me to stay in touch with people in our community! 

Why do you like this practice and coming to work every day? I believe in customized treatment plans for each patient, not the one-size-fits-all approach that you may find elsewhere. 

What do you do outside of the office for fun or as a hobby? I am an avid sports fan — if you didn’t know the score of last night’s game, you’ll probably hear about it while you’re in the office (Go Huskies!). I also enjoy golfing, skiing, and taking in the occasional rock concert. 

Where were you born/raised? Born and raised in Olympia and I have always called Western Washington home. 

Pets and Family: Married with two sons, Cameron and Carter. We have a cat and 2 dogs.

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Asma Arara, DDS

General Dentist

Educational background:
Residency in Advanced Comprehensive Program | New York University, College of Dentistry
Master Degree in Clinical Research | New York University, College of Dentistry 
Bachelor of Dental Surgery (B.D.S) | Tripoli University Faculty of Dentistry

Continuing Education Courses Attended:  
Certificate Training in Dentistry | Duggan’s Institute of Dentistry in Costa Mesa, CA 2021

Affiliations or organizations you belong to:
American Dental Association
Washington State Dental Associations
Libyan Dental Associations

What year did you join the current practice?  2022

Why do you enjoy the dental profession? Because I am able to provide comprehensive dental care and help people maintain and improve their oral health.

What is your favorite part about interacting with patients? My favorite part is the interaction with many different people. Each patient has a story to tell, and every procedure provides a different challenge.

Why do you like this practice and coming to work every day? Because each day I get the opportunity to provide a positive impact on the oral health and self-confidence of others; it’s extremely rewarding and enjoyable.

What do you do outside of the office for fun or as a hobby? In my free time I enjoy spending time with my family and friends. I also enjoy cooking, baking, reading and traveling.

Where were you born? USA – California

Where were you raised? Libya & Netherlands

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Gurveen Khatkar, DDS

Associate Dentist

Educational Background: University of Washington School of Dentistry – DDS 2020, University of Washington – Psychology BA 2016.

Continuing Education Courses Attended: I am currently working on implant training via Maxicourse AGD 2021. 

What is your favorite part about interacting with patients? I enjoy getting to know patients over their lifetime and having something I can do with my hands to help. I also enjoy getting to know them and always learning something new.

Why do you like this practice and coming to work every day? I get to focus on doing good dentistry and serving patients without pushing unnecessary treatment.

What do you do outside of the office for fun or as a hobby? I like working out, dancing, and hanging out with friends. 

Where were you born? Seattle, WA born and raised.

Jordan Arnold, DDS

Dentist

Educational Background: I graduated from the University of Southern California (USC) in 2013, cum laude, with a Bachelor of Science in Kinesiology and a Minor in Sculpture. Fight On! I graduated from NYU College of Dentistry in 2017, summa cum laude, with a Doctorate of Dental Surgery and selectives in Orofacial Pain and Periodontics. After graduation, I served in the Navy for four years, where I attended a general dental residency at Great Lakes Naval Station, with an emphasis in Endodontics and Oral Surgery. I also served on the USS NIMITZ as a general dentist and was deployed to the South China Sea and Arabian Gulf. Hooyah!

Continuing Education Courses Attended: I continue my education weekly through the Spear Online Education platform, focusing on esthetics, complex restorative treatment and new up-to-date dental materials and techniques.

Affiliations or Organizations: Omicron Kappa Upsilon OKU, National Dental Honor Society. 

What year did you join the current practice and/or group? 2021. 

Why do you enjoy the dental profession? Dentistry is the perfect mix of medicine and art. I love helping change the way people see themselves through their smile. I especially enjoy cosmetic dentistry, getting to help patients achieve their perfect smiles, and performing root canals, providing a stress-free experience while eliminating pain and infection.

What is your favorite part about interacting with patients? I enjoy helping people achieve their oral health goals. It is my mission to be transparent and honest. Patients are ultimately in charge of their own dental care. I’m here to notify you of any potential issues or concerns that I may see and help you solve them. I pride myself on providing honest feedback and thorough explanation of issues through pictures and x-rays, and leave the decision up to you to move forward. I give multiple treatment options and let each patient decide on a treatment plan that best suits their specific needs. There is never pressure for you to proceed with treatment you’re not comfortable with.

What do you do outside of the office for fun or as a hobby? I love action sports and am always looking for a chance to snowboard, mountain bike, hike or wakeboard. If I am not outside, I am usually eating; my husband is an amazing cook.  

Where were you raised? San Diego. 

Pets  and Family: I am married to my husband (Robin) and we are proud parents to our son (Bruce). Also, I have a crazy Australian Shepherd (Blake) and the best calico cat ever (Lupe).

Tanesha

Dental Hygienist

Educational Background: I graduated from PIMA Medical Institute in May 2021 with an associate’s degree in dental hygiene. In 2011, I attended the University of the West Indies where I obtained my associate’s degree in supervisory management and computer applications (honors). In 2010, I completed my Bachelor of Arts degree in Elementary Education (honors) at Consortium of Institutions for Teacher Education. I also graduated from the College of Agriculture Science and Education in 2002 with a diploma in elementary education. I am also a certified nursing assistant and mental health technician.

Continuing Education Courses Attended: HIPPA, HIV/AIDS, OSHA, CPR/BLS, Among many more

Affiliations or Organizations: ADHA, WADHA, Previously Special Olympics and looking to go back

What year did you join the current practice and/or group? I started here in June 2021

Why do you enjoy the dental profession? I have a love for a beautiful smile; I think it is the most beautiful thing you can wear.

What is your favorite part about interacting with patients? My favorite part of interacting with my patients is when they express their satisfaction at the end of their treatment.

Why do you like this practice and coming to work every day? I have a wonderful team of dedicated individuals who are all passionate about their work and have a desire to make a difference in the profession. 

What do you do outside of the office for fun or as a hobby? I do every and anything that can be done outdoors. I especially love being on the beach.

Where were you born? I was born on the beautiful island of Jamaica – sun, sea, and sand.

Where were you raised? I was also raised in Portland, Jamaica, and eventually migrated to the United States in 2015.

Family: Demarcus (Husband),  Tiffany (Daughter), Taje (Son)

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Kirnjit

Dental Hygienist

Madison

Dental Hygienist

Educational Background: Bachelors of Applied Science – Dental Hygiene from Lake Washington Institute of Technology (Class of 2018)

Continuing Education Courses Attended: A ton! I love going to dental conventions where I get to learn all day and walk around to see all of the vendors and different dental companies. Plus, I get to meet new people in the dental field.

What year did you join the current practice and/or group? I was temping here in January, then became officially full-time in the beginning of February.

Why do you enjoy the dental profession? I love building relationships with patients and getting to know them; it’s my favorite part of the job. I also enjoy educating patients and helping them love their smile. Growing up, my mom worked at our dental office so I have always loved being in the office.

What is your favorite part about interacting with patients? Getting to know them more personally rather than just surface level and building a connection.

Why do you like this practice and coming to work every day? I love the environment here. Everyone is very friendly and we get along great. We work really well together and teamwork is huge between us. I also really love my patients!

What do you do outside of the office for fun or as a hobby? I LOVE traveling; it is my favorite thing to do. I also really like the outdoors and am always looking for something to do outdoors. Fitness has been a passion of mine for a long time, so if I’m not on vacation or at work you’ll usually find me in the gym!

Where were you born? Bellevue, WA

Where were you raised? Kent, WA

Pets and Family: I have a 2-year-old Golden Retriever named Oliver, but he usually goes by Ollie. He is so sweet and snuggly but also has a ton of energy. He loves to play and go to the dog park. He also loves the water and goes swimming any chance he gets, even if it means laying in a mud puddle.

Kaitlyn

Dental Hygienist

Educational Background: Pierce College Dental Hygiene Program, Class of 2015.

What year did you join the current practice and/or group? I joined the team at Tranquility Dental Wellness in 2019.

Why do you enjoy the dental profession? I love educating patients on their oral health needs and making a difference in the way patients feel about themselves. I enjoy helping people become more confident about their smiles.

What is your favorite part about interacting with patients? I like meeting new people and getting to hear about their lives. I like forming relationships with patients on a professional and personal basis.

Why do you like this practice and coming to work every day? I love my career and I am grateful for my coworkers. They help make the days run smoothly and are easy to be around.

What do you do outside of the office for fun or as a hobby? I enjoy spending time with family and friends. I love anything salt water-related and taking my dog on walks to new places.

Where were you born and raised? Puyallup, WA.

Pets: I have two fur babies, a dog named Baylee and a cat named Cohen.

Devin

Dental Hygienist

Educational Background: Seattle Central College with Allied Health, Bachelor’s of Applied Science in Dental Hygiene

Continuing Education Courses Attended: Laser Bacterial Reduction, Laser Assisted Periodontal Therapy, Pediatric Dentistry, DECOD UW WA Special Needs Dentistry, Suicide Prevention, Infection Control, HIPPA/WISHA, CPR/First Aid, Combat Medical Training, EMT-B

Affiliations/Organizations You Belong to: US Navy Veteran, Washington State Dental Hygiene Association, American Dental Hygiene Association

What year did you join the current practice and/or group? I joined Tranquility Dental in 2021.

Why do you enjoy the dental profession? I find great joy in providing services that improve the lives of others; building confidence in smiles, educating on proper oral home care practices, and preventing the progression of periodontal/gum disease.

What is your favorite part about interacting with patients? My favorite parts of interacting with patients are building a relationship of trust, helping overcome dental anxiety, helping them feel comfortable and safe in the dental chair, and providing gentle but effective preventive dental services.

Why do you like this practice and coming to work every day? At Tranquility Dental Wellness, we are not just a team, we are a family! Tranquility Dental treats patients as part of that family, and provides top-notch dental services to all who walk through our doors. Spending each day with family makes coming to work easy.

What do you do outside of the office for fun or as a hobby? In my off time, I enjoy spending time with my family, being the loudest dad at my son’s soccer games, making my partner and other’s laugh with my corny dad jokes, serenading my family and friends with my karaoke skills, and restoring/repairing all the things breaking in my 1920s home with the help of YouTube.

Where were you born? I was born in the Appalachian Mountains, in Charleston, West Virginia. No, it’s not like the movie “Deliverance.”

Where were you raised? My mother, a single mom and a nurse practitioner of over 40 years, raised my brother and I in North Carolina and Virginia.

List your pets (significant others and kids too): My Partner: Veronica, My Son: Donovan, Their Pet: Me

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Heather

Dental Hygienist

Educational Background: Bachelor’s degree from the University of Detroit Mercy in Michigan.

What year did you join the current practice and/or group? I joined in 2018.

What is your favorite part about interacting with patients? I love dentistry because of the people. Building relationships, educating my patients and helping them work through their fears and anxiety are my favorite things.

Why do you like this practice and coming to work every day? I enjoy working for Tranquility because of the team and vision. I feel empowered to do what is right for each patient and provide personalized care. It is a positive environment and a work/life balance is encouraged.

Where were you born? I was born and raised in Michigan. I moved to Washington in 2008.

I started dental assisting in high school and throughout college.

What do you do outside of the office for fun or as a hobby? In my free time I like to be outside, travel, go camping, take photos, and work on our travel blog.

Pets (significant others and kids too): My husband is Corey and we have three kids, Cohen, Lennon, and Sloane. We have a dog named Bella and a cat named Theo.

Shelby

Dental Hygienist

Educational Background: Associates of Applied Science in Dental Hygiene

What year did you join the current practice and/or group? 2022

Why do you enjoy the dental profession? I enjoy interacting with people and I really enjoy being able to work at my own pace being in dental hygiene.

What is your favorite part about interacting with patients? I really enjoy getting to know new people.

Why do you like this practice and coming to work every day? The whole team is willing to help whenever they’re needed which is really refreshing.

What do you do outside of the office for fun or as a hobby? I like to exercise, hike, paint, and go on small adventures with my family.

Where were you born? Georgia

Where were you raised? All over – I was an army brat.

Family: I have two kids; Camilla age 7 and Liam age 8 months as well as my boyfriend of 3 years, Cole.

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