Why Choose Us?

Mariam Bawany, DMD

Dr. Mariam Bawany graduated from Midwestern University’s College of Dental Medicine. She then pursued advanced dental training in a hospital residency setting at St. Francis Medical Center in Peoria, Illinois. During her residency, she worked in the emergency department, performed surgeries in the operating room on patients under general anesthesia and worked with local specialists to provide the best care possible for her patients. After hours, she enjoys attending continuing education courses to stay up to date with the latest research and techniques, volunteering at various charity events and juvenile centers, and attending the ISDS Capital Conference to speak with senators and representatives about important dental issues. This has all shaped her practice philosophy of putting her patients first.

Dr. Bawany believes it is a privilege to provide dental care to the Chicagoland community. Her priority is to treat every patient with the highest standard of care by taking extra time to listen closely, ensuring comfort during appointments and forming a treatment plan with individual patient concerns in mind.

When Dr. Bawany is not practicing dentistry, she enjoys spending time with her husband, family and friends. She has a young daughter and loves watching her grow and reach new milestones.


Rene Tanquilut, DDS

Dr. Tanquilut was born in Chicago and raised in the southwest suburb of Orland Park. He earned both his bachelor’s degree and his Doctorate of Dental Surgery at the University of Illinois. As a graduate student, he completed an externship in oral surgery.

After dental school, Dr. Tanquilut completed a General Practice Residency Program (GPR) at Cook County Hospital in Chicago. He rotated through various different departments during his residency, including Internal Medicine, Anesthesiology and Oral and Maxillofacial Surgery.

Over the last 20 years, Dr. Tanquilut has taken almost three times the annual continuing education hours required by the state. As a result of his training, continuing education and years of experience, he has been awarded Fellowship status in the Academy of General Dentistry and International Congress of Oral Implantologists.

Stephanie Nguyen-Janes, DMD

Dr. Stephanie A. Nguyen Janes is originally from Metro Detroit and received a Bachelor of Science degree in biology with a minor in psychology from the University of Michigan. Upon graduation, she moved to Bradenton, Florida, to study dentistry as part of the inaugural class at the Lake Erie College of Osteopathic Medicine School of Dental Medicine, earning her Doctor of Medicine in Dentistry degree. While at LECOM, she was a dual-enrolled student and also earned a master’s degree in health service administration. On behalf of the International College of Dentists, she received the Humanitarian Award.

After graduating from dental school, Dr. Stephanie moved to Chicago and completed a general practice residency through the NorthShore University HealthSystem – Evanston Hospital. She gained hospital dentistry experience with a focus on medically compromised patients and emergency dentistry. Through the residency program, she was able to enhance her comprehensive dental skills, especially in endodontics and cosmetic dentistry.

In her spare time, Dr. Stephanie enjoys rooting for the Michigan Wolverine football team. Go Blue! She is passionate about volunteering with underserved communities and expresses her creativity through scrapbooking and other Cricut craft projects. She and her husband recently welcomed their first daughter to the world. Together, they love trying different restaurants in the Tri-City area, going to the theater for plays and musicals, and traveling to new destinations.

Meet Our Team
Here at Randallwood Dental, we are dedicated to helping you achieve your ideal smile. We have a highly experienced team that focuses on each individual patient to ensure they receive the care they need and is happy to communicate with our patients in both Spanish and English. Our team values the long-term relationships we build with our patients, and we make certain our patients feel satisfied with their care! To learn more about our dental services in St. Charles, Illinois, we invite you to contact our office at 630-377-0034 today and schedule an appointment with our dentists, Dr. Rene Tanquilut or Dr. Mariam Bawany.

Ashley M.

Dental Assistant

Hi, my name is Ashley. I am a registered dental assistant and lead assistant at Randallwood Dental. I’ve been in the dental field for 9 years. My goal here at is to make sure all my patients leave with a smile, a smile that they love.

My family and I reside in Bolingbrook. I have three kids, Alexandra (12), Aundrea (10) and Oscar (9). In my free time I am busy attending all of their sports games and competitions. Other things I enjoy doing are dancing hip hop and latin fusion at lifetime fitness. Along with spending time with family and friends.

I love the doctors and staff here at Randallwood Dental and enjoy coming to work everyday with a smile myself.

What I love the most about my job is making such an impact on our patients’ lives and the fact that they actually enjoy coming to the dentist.

The overall best compliment we can receive is a review or a referral from our patients.

Katie C.

Patient/Finance Coordinator

As a patient and finance coordinator for Randallwood Dental, I enjoy growing a positive relationship with patients and helping them achieve a brighter smile. I am married with three children and enjoy traveling to explore different natural wonders with my family.

Nicole B.

Registered Dental Hygienist

Check back soon to meet Nicole!

Nikki W.

Patient/Finance Coordinator

Check back soon to meet Nikki!

Patti G.

Dental Assistant

Check back soon to meet Patti!

Raquel R.

Registered Dental Hygienist

Hello, my name is Raquel. I have been married for 16 years to such an intelligent man and have 2 kids, my greatest achievement. They keep me on my toes. I can always count on my family for support. I enjoy spending time with my family and friends, traveling and always learning something new. I believe that a curious mind craves knowledge.

I have been a dental hygienist for 19 years. I enjoy what I do. There are so many different reasons why. I enjoy educating the patients, providing individualized care and forming lasting relationships with patients. I am humbled that they put their trust in me to provide them with compassionate care.

Sade B.

Patient/Finance Coordinator

Check back soon to meet Sade!

Tanner B.

Registered Dental Hygienist

Hi, I’m Tanner. I grew up in a small town near Macomb, IL. I received my degree in dental hygiene from Carl Sandburg College. I strive to ensure our patients feel comfortable and informed during their visit. Outside of the office, I enjoy spending time with my wife and our two black kittens, and in my free time, I also enjoy hiking.