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Dr. Barbara Chang
Dr. Barbara Chang

Dr. Barb is a 1976 cum laude graduate of Loyola University School of Dentistry and a member of the Omicron Kappa Upsilon honor society. After 40 years in private practice, She is now working part time at Chang Dental Center.

Dr. Barb also provides free dental services for Chicago's Pacific Garden Mission. She and her husband enjoy traveling and spending time with their grandchildren.


Dr. Johnson
Dr. Vicki Johnson

Dr. Johnson graduated from the University of Minnesota in 1983 and practiced dentistry there until moving to Chicago. She also spent a year in Thailand, working as a volunteer dentist in a refugee camp.

Dr. Vicki's hobbies include runnung, biking, and reading.


Dr. Douglas Chang
Dr. Douglas Chang

Dr. Doug is a 2006 graduate from the University of Iowa School of Dentistry. He was a recipient of the Research Assistant Award, and completed a study abroad in the Netherlands at the Radboud School of Dentistry for esthetics.

Dr. Doug is a delegate to the Illinois State Dental Society and is a past president of West Suburban Dental Society. As a member of the ADA and the Christian Dental Society, he has participated in a dental mission trip to Mavis Bank Jamaica and also volunteers dental services at CDS Foundation Dental Clinic in Wheaton.

Dr. Qinqin Song
Dr. Quinqin Song

Qiujing Song is a graduate of Xiang Ya Medical School, Department of Dentistry. Having completed her DDS credentialing at the University of Illinois, she joined the Chang Dental Center team in 2016.

In her free-time .she and her husband are very busy with their daughter's activities and their church.

Dr. Megan Davis
Dr. Megan Davis

Dr. Davis earned her DDS from the University of Indiana. She is a fourth generation dentist, and grew up in rural Indiana. Dr. Davis has also been abroad doing dentistry on the mission field. She has practiced in the Western Suburbs since 2006, and is most passionate about creating beautiful smiles.

Dr. Davis also enjoys oral surgery and implants, and she is certified for conscious sedation.


Dr. Ardeshir Raghian
Dr. Ardeshir Raghian

Dr. Ardeshir Raghian graduated from the University of California at Los Angeles School of Dentistry in 1996, and then received his post-doctoral degree in Periodontology from Northwestern in 1999.

As a board-certified periodontist, he prides himself on ensuring that each patient achieves excellent oral health by first achieving excellent periodontal health.

Dr. Raghian remains committed to ongoing education in order to implement minimally invasive techniques and other advanced methods. His special interests are dental implants, Invisalign, periodontal care and other cosmetic and restorative dental options.


Dr. Christian Olarov
Dr. Cristina Olarov

Dr. Cristina Olarov's career in dentistry started in her native Romania. She immigrated with her husband and began practicing as a general dentist in Oak Lawn after completing the International Dentist Program at University of Illinois College of Dentistry in 2010. Her outstanding academic achievements resulted in three prestigious awards - - membership in the Sigma Chapter of Omicron Kappa Upsilon National Dental Honor Society, the Dr. Robert Savage Award, and the Astra Implant Award.

Dr. Olarov continued her education at University of Illinois, College of Dentistry, with post-doctoral specialty training in Endodontics. She is now a Board Certified Endodontist, and Diplomate of the American Board of Endodontists, as well as a member of five professional dental societies. In addition to working at Chang Dental Center, Dr. Olarov is also a Clinical Assistant Professor at University of Illinois Chicago, College of Dentistry, in the Department of Endodontics.

Dr. Olarov lives in Naperville with her husband and two daughters. She enjoys spending time with her family, reading and listening to classical music.


Chang Dental Center | 6070 S. Route 53 | Lisle, IL. 60532-3395 | Office: (630) 963-4306 | Fax: (630) 963-9344 | info@changdentalcenter.com