Meet Our Doctors

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Meet Our Doctors 2017-06-23T15:44:06+00:00

Mary E. Tierney, D.D.S., M.S.

Dr. Mary, as she is known to parents and their children alike, believes that she has one of the world’s best professions. Her passion for her work shows. Dr. Mary was recently selected by the readers of Chicago Parent Magazine as one of Chicago’s Favorite Kid’s Docs.

Dr. Mary has more than 20 years of experience in private practice!She owns and operates City Kids Dental, PC, as well as, City Kids Dental North Shore, LLC in Winnetka, Illinois. Dr. Mary is a board certified Diplomate of the American Board of Pediatric Dentistry, a Fellow of the American Academy of Pediatric Dentistry, and a licensed Pediatric Dental Specialist by the State of Illinois. Her memberships include: the American Dental Association, the Illinois State Dental Society, the College of Diplomates of the American Board of Pediatric Dentistry, the Chicago Dental Society, the Illinois Society of Pediatric Dentists and the Michigan Dental Association. Dr. Mary is a past-president of the Illinois Society of Pediatric Dentistry, a former chairperson for the Illinois State Dental Society’s public relations committee, and she served as a media spokesperson and participant in the Illinois State Dental Society’s first Mission of Mercy Event to bring dental services to the under-served patients of Illinois.

Dr. Mary earned a BS in Biology from the University of Michigan in 1989 and a DDS from Northwestern University School of Dentistry in 1993. While at Northwestern, she was elected to the dental honor society, Omicron Kappa Upsilon. She returned to Ann Arbor and completed a MS in Pediatric Dentistry from the University of Michigan in 1995. Her master’s thesis work entitled “The role of the Bcl-x Protein in Wound Neovascularization”, earned her many accolades and contributed to an expanding body of research that may ultimately assist in the treatment of chronic inflammatory skin disease and epithelial tumors. Dr. Mary is the recipient of the American Academy of Pediatric Dentistry Graduate Student Research Award. She also holds the very special distinction of having been awarded the American Academy of Pediatric Dentistry’s Ralph E. McDonald Award. This award is given annually to one new pediatric dentist for excellence in research enhancing the specialty of Pediatric Dentistry. Dr. Mary is also proud to have received the University of Michigan Pediatric Dental Alumni Memorial Award for excellence as a graduate student.

Dr. Mary loves learning and sharing her expertise. She has spent time teaching clinical pediatric dentistry as an adjunct clinical professor of Pediatric Dentistry at the University of Michigan and as a dental attending at The Children’s Memorial Hospital of Chicago. She remains affiliated with Ann and Robert H. Lurie Children’s Hospital of Chicago.

Dr. Mary resides in the Lincoln Square neighborhood with her cat Temoku. She loves the small town character and the close knit community. Dr. Mary likes to garden, but also enjoys the delicious finds at the Lincoln Square Farmer’s Market. Although she loves to cook using these locally grown items, she also loves trying new restaurants. During Cubs season, she can be sighted often at Wrigley Field. Her other interests include traveling, live music, reading non-fiction, pottery and spending time with friends and family, especially her niece and nephew.

Rebecca J. Testa, DDS, MS

Dr. Testa is a bit of a chip off the old block! Her father, Dr. Ronald Testa, has practiced Pediatric Dentistry for over 35 years. Seeing the positive impact that a pediatric specialist can make, Dr. Testa chose to follow in her father’s footsteps. However, the dentists in her family don’t stop there, her paternal grandfather was also a dentist.

Dr. Testa graduated Summa Cum Laude with a BS in Psychology from Valparaiso University in 2003. She earned a DDS from the University of Illinois at Chicago College of Dentistry in 2007 and went on to pursue her postdoctoral training in pediatric dentistry there. She graduated UIC with a MS in Oral Sciences in 2009 and became a welcome addition to the City Kids Dental team. Her masters thesis project “Complications of Oral Intubation in Premature Infants with and without Stabilizing Devices” was presented at the 64th Annual Session of the American Academy of Pediatric Dentistry. It was also presented in Barcelona at the International Association of Dental Research 2010 General Session & Exhibition. Her work has been published in the Journal of Pediatric Dentistry!

Dr. Testa is a board certified Diplomate of the American Board of Pediatric Dentistry, a Fellow of the American Academy of Pediatric Dentistry, and a licensed Pediatric Dental Specialist by the State of Illinois. She is a member of the Illinois Society of Pediatric Dentists, the College of Diplomates of the American Board of Pediatric Dentistry, the Chicago Dental Society, the Illinois State Dental Society and the American Dental Association. Dr. Testa is also active in community service activities donating her time at the ADA National “Help Give Kids A Smile Day”, The Glass Slipper Project, Rush University Medical Center “Preemie Picnic”, and the Chicago Ronald McDonald House.

Dr. Testa resides in Frankfort, Il with her dog, Beaureguard.  Outside of Dentistry, Dr. Testa bakes some great cookies, spends time with her family and the family pets, and is an avid reader.

Allison McMahon, D.D.S.

Dr. Allison McMahon is a Chicago native who grew up in Orland Park. She completed her undergraduate studies at the University of Illinois at Urbana-Champaign graduating Cum Laude with distinction in Cell and Structural Biology. Dr. Allison received her Doctor of Dental Surgery from the University of Illinois at Chicago (UIC) College of Dentistry. She was elected to the dental honor society Omega Kappa Upsilon and graduated with honors before continuing on at UIC for her specialty training in pediatric dentistry. True to her University of Illinois background, Dr. Allison has also served as an Assistant Clinical Instructor in the Pediatric Clinic of the UIC College of Dentistry.

Dr. Allison is a board certified Diplomate of the American Board of Pediatric Dentistry, a Fellow of the American Academy of Pediatric Dentistry, and a licensed Pediatric Dental Specialist in the State of Illinois. She is a member of the Illinois Society of Pediatric Dentists, the College of Diplomates of the American Board of Pediatric Dentistry, the Chicago Dental Society, the Illinois State Dental Society and the American Dental Association.
She enjoys working with children and strongly believes in early childhood dental care to build a lasting foundation of lifelong oral health. She loves getting to know patients and families and enjoys watching their growth over the years.

Dr. Allison lives in Winnetka with her husband Jason. They are the proud parents of Henry, twins Graham and Mary, and dog Chief. In her free time, Dr. Allison enjoys spending time with her family, traveling, skiing, biking, and reading.

Meet Our Anesthesiologist

Michael S. Higgins, D.D.S.

Following dental school, Dr. Higgins completed a Hospital General Practice Residency in New York. He was then accepted into the anesthesiology residency at Illinois Masonic Medical Center, Chicago, 1980-82. Since completion of his anesthesia training, Dr. Higgins has practiced dental anesthesiology, providing office based anesthesia care throughout the Northern Illinois area.

In addition to his private practice, Dr. Higgins is a long-standing faculty member with the Department of Anesthesiology at the University of Illinois Hospital Medical Center, and holds the academic rank of Associate Professor of Anesthesiology with that department and the University of Illinois College of Medicine. Dr. Higgins is a regional and national lecturer and is published in the area of Anesthesiology for Dentistry.

Dr. Higgins has remained very active at all levels of the dental society.

On the local level, he served on Mediation & Peer Review for the Chicago Dental Society, as President of his Northwest Suburban branch, on the Chicago Midwinter Lecture and Exhibits Committees, as Program Chairman of the Chicago Midwinter Meeting, and as Chairman of the Members Group of the Chicago Dental Society.

On the state level, Dr. Higgins is pleased to have served on the Publications and Legislative committees and other numerous committees of the Illinois State Dental Society (ISDS), as a member of ISDS Board of Trustees, Program Chairman of the ISDS Leadership Conference, Program Chairman for the ISDS Annual Session, and delegate/alternate delegate to the American Dental Association.

In addition, Dr. Higgins is proud to have served as President of:

  • The Illinois Dental Society of Anesthesiology
  • The Illinois State Dental Society
  • The American Society of Dentist Anesthesiologists

Dr. Higgins is a Fellow of both the American and the International College of Dentists. He is board certified with the American Dental Board of Anesthesiology and the National Board of Anesthesiology. He is a Fellow of the American Dental Society of Anesthesiology. Dr. Higgins is a recipient of the prestigious Dr. Leonard M. Monheim Lifetime Achievement Award for Anesthesiology.

Dr. Higgins is a native of the Chicago area and resides in Palatine with his wife, Mary.  He enjoys spending time with his three children – Ryan, Lindsay, Mitchell, and his new grandbaby!  He also enjoys boating, fishing, and gardening – when he can find the time!