Meet Our Doctors

Aziz Rasulov

Dr.Aziz Rasulov is experienced, a skilled and caring dentist who loves working with kids and enjoys working with adults. He provides high-quality dental care in a State-of-the-Art, modern, comfortable dental practice.

Dr. Aziz Rasulov has been recognized as AMERICA'S TOP DENTISTS in 2009 - 2015, 2018 by consumers' research council.

Dr. Aziz is a member of American Dental Association, Colorado Dental Association, Metro Denver Dental Society, American Academy of Pediatric Dentistry as a general dentist affiliate and American Academy of Facial Esthetics.

Dr.Aziz Rasulov holds dual dental degree: graduated with Honors from former Soviet Union State Tajikistan (Tajik State Medical University, Dental Department) in 1995 and in the US he graduated from Advanced Standing D.D.S. Program at New York University, College of Dentistry in 2003 as a top 15% of the class. He was admitted to the OKU Dental Honor Society. In 2003-2004 Dr. Aziz Rasulov attended valuable postdoctoral training at VAMC in Denver, Colorado and earned Certificate in General Practice Residency. He takes numerous continuing education courses.

Besides dentistry Dr.Aziz likes to travel, play sports and spend quality family time. He is married and has three children: 11 year old boy, 8 year old boy and a 1 year old daughter.

Douglas J.Mills

Dr. Mills, a West Virginia native, received his undergraduate education from West Virginia University, as well as completing dental school at WVU School of Dentistry, where he earned his Doctor of Dental Surgery degree in 1982.

He spent 30 years in his solo, private practice in his hometown of Elizabeth, WV, where he provided all aspects of general dentistry.

Upon deciding to close his private practice, Dr. Mills transitioned into the role as an Associate Dentist for a group practice near Parkersburg, WV. In 2014 he and his wife Dawna decided to relocate to Denver, Colorado area where he continued to work as an Associate Dentist.

Dr. Mills believes in delivering quality care for all patients in a professional and personable manner. Staying abreast of the latest technology and patient treatment in the Dental field is also a top priority. Dr. Mills is a member of the ADA, CDA and MDDS.

When not practicing dentistry, Dr. Mills enjoys exploring Colorado with his wife and dog Gizmo. Together they have a blended family of five grown children all of which live in different states. A sports fan and an avid follower of his Alma Mater’s college football and basketball teams, Dr. Mills also likes to play golf and listen to classic rock music.

Julia Laskin

After graduating from the University of Colorado with a Bachelors degree in Biology, Dr. Laskin pursued her passion of dentistry. Dr. Laskin graduated from Arizona School of Dentistry and Oral Health, with a Doctor of Dental Medicine degree and an emphasis in Public Health. After graduation, she completed a general practice residency program at the Veteran Affairs Medical Center in Denver, Colorado.

Almost a Colorado Native, Dr. Laskin was born in St. Petersburg, Russia and moved to Denver, Colorado with her family at a young age. Dr. Laskin enjoys hiking in the beautiful outdoors of Colorado, cooking and spending quality time with friends and family, especially with her husband and her three precious boys!

Taking great care and responsibility of patient’s dental concerns, while delivering comprehensive dentistry is Dr. Laskin’s main priority. She enjoys all aspects of dentistry, including operative dentistry, pediatric dentistry, implant dentistry, fixed and removable prosthodontics, oral surgery, and endodontics.

Dr. Laskin is a member of the American Dental Association (ADA), Colorado Dental Association (CDA), Metropolitan Denver Dental Society (MDDS) and Alpha Omega International Dental Society (AO).

Dr. G. Frederick (“Fred”) Siersma D.D.S., M.S.

Dr. Siersma is experienced and skilled Orthodontist is a Denver native, spent his early years just downwind of Lowry Air Force base. While still in elementary school he moved to Littleton and was graduated from Littleton High School.

Because at the time, there was no dental school in Colorado, Dr. Siersma attended the University of Michigan, the alma mater of both his parents. He received his M.S. and his D.S.S. degrees there. From there he went to Loyola University in Chicago where he received an M.S. in Oral Biology and his Certificate of Specialty in Orthodontics.

Following graduation from his residency, Dr. Siersma entered the United States Air Force and was stationed at Elmendorf A.F.B. in Anchorage, Alaska as base orthodontist. Because there was no orthodontist at Eielson A.F.B. near Fairbanks, he spent a week every month there. 

Dr. Siersma’s professional memberships include the American Dental Association, Colorado Dental Association, Metropolitan Denver Dental Society, American Association of Orthodontists, Rocky Mountain Society of Orthodontists and the Colorado Orthodontic Association. He has also been an Associate Clinical Professor of Orthodontists at the University of Colorado School of Dental Medicine since the program’s beginning.

Away from the office, Dr. Siersma has been an avid bicyclist since the late ‘70’s. He is still an active member of the Denver Bicycle Touring Club. He also loves hiking and has been a member of the Colorado Mountain Club since 2008. 

Dr. Adam Gart

Dr. Adam Gart grew up outside of Boston, Massachusetts and earned his DMD degree from Midwestern University in Downers Grove, Illinois, where he was taught the most innovative tools in dentistry. Ranked in the top 10 of his class academically, Dr. Gart earned the school Award for Implantology, Oral Surgery, and the Excellence in Patient Care award.  Since dental school, continuing education in the fields of advanced esthetics, implant dentistry, and oral surgery have helped him keep his skills sharp.  His ability to combine compassionate care with top-notch technical abilities make him a perfect fit at Cozy Dental.  

Dr. Gart enjoys combining his passion for dentistry with his passion for volunteering. Dr. Gart’s time at dental school included a mission trip to help those who are underserved. He provided free care to residents of a village in the Dominican Republic treating patients of all ages with fillings and extractions. 

While not pursing dentistry, Dr. Gart loves his sports.  Ranked in the top-20 nationally, platform tennis is one of his passions.  Along with tennis he enjoys skiing, golf, and hiking with his fiancé and their rescue dog, Lido. 

Dr. Paul Raines

Dr. Raines discovered his passion for dentistry when he was 17 years old. He was offered a job in his orthodontist’s office when he graduated high school and there was no turning back. The next 10 years he spent working in orthodontics developing an appreciation for dental esthetics, careful attention to detail, and an extensive knowledge of the Invisalign clear aligner system.

Dr. Raines grew up in a military family, spending most of his childhood in Japan and Alaska. He completed his bachelor’s degree in biological sciences from the University of Alaska Anchorage. Dr. Raines attended dental school at the University of Colorado School of Dental Medicine where he obtained his doctorate of dental surgery degree.

He is married to his high-school sweetheart Heather and they have two wonderful children named Liam and Leighton. When he is not in the office you can usually catch him out hiking, camping, training for a half-marathon, coaching his son’s football team or hanging out at the pool with his family and friends.

Newsletter Signup

Sign up to receive helpful updates

Contact Us

Send us an email

Our Location

Find us on the map

14025 East Exposition Avenue, Aurora, CO, 80012, USA

Our Office Hours

Find Out When We Are Open


8:00 am-4:30 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-2:00 pm