Medford Office:
631 320 0880

Commack Office:
631 486 6364

Garden City Office:
516 280 6734

Meet The Team

Dr. Michael Ioannou

Dr. Michael Ioannou

Dr. Michael Ioannou is a native of Suffolk County. He received his bachelor's degree with honors at Stony Brook University and his Dental degree at the University of Connecticut School of Dental Medicine. Dr. Mike then completed his residency in Pediatric Dentistry at Albert Einstein College of Medicine/Montefiore Medical Center. Dr. Mike is a friendly, patient dentist that strives to mold children's behaviors and change their attitudes toward dental hygiene. His goal is to make visiting the dentist a fun experience while providing exceptional dental care. He does so with the use of excellent behavioral management approaches, a child friendly environment and staff, and singing to patients! Dr. Mike, Dr. Chris and staff make sure that all patients are treated as if they are our own children!

Dr. Michael Ioannou is an active member of the American Academy of Pediatric Dentistry and frequently attends the most up-to-date continuing education courses. He is very active in the community and volunteers regularly giving seminars to various preschools in the area on dental prevention, hygiene, and diet.

Dr. Mike's hobbies include reading, sports, and spending quality time with his beautiful wife, Denise, and his adorable children, Andrew, Payton, and John.


Dr. Christos Ioannou

Dr. Christos Ioannou

A native of Suffolk County, Dr. Chris Ioannou attended State University of New York at Stony Brook receiving a Bachelors of Science in Biology and a Doctor of Dental Surgery degree. He also completed a 2- year residency in Pediatric Dentistry at Albert Einstein College of Medicine/Montefiore Medical Center. Dr. Chris is a Board Certified Pediatric Dentist specialized in treating children of all ages, including those who are medically compromised and have developmental delay. His goal is to provide outstanding dentistry in a child friendly manner. The most important outcome is for a child to have a pleasurable and fun experience as well as take home the invaluable knowledge of oral hygiene. Creating a dental home early on establishes a relationship with our patients and their parents and gives a lifelong full of bright smiles. Dr. Mike and Dr. Chris, brothers, along with all of the staff at Pediatric Dentistry of Suffolk County strive to extend their hospitality and expertise to you and your family.

Dr. Chris is an active member in the American Academy of Pediatric Dentistry as well as a volunteer and dental hygiene educator at various events such as the Special Olympics. Dr. Chris has also traveled to Africa teaching and treating underprivileged children.

Dr. Christos hobbies are fishing, traveling and most importantly spending time with his wife, family and friends.


Dr. William Rubino

Dr. William Rubino

Dr. Rubino is an orthodontic specialist who truly loves his work. He takes great pride in his ability to give patients the healthy beautiful straight smiles they deserve.

Dr. Rubino loves working with all his patients and believes their concerns always come first. He believes in providing patients and parents multiple treatment options because every patient is different and unique.

Dr. Rubino was born and raised in New York. He received his bachelors degree and graduated with honors from New York University. He received his dental education from Stony Brook University School of Dental Medicine, where he received clinical honors and graduated in the top of his class.

He also received the Nancy Wender Award, which is given for attaining highest board score in his class.

Dr. Rubino then completed a general practice residency at Northport VA Medical Center, where he further advanced his education in all areas of dentistry. Later he returned to Stony Brook University School of Dental Medicine and received his certificate in orthodontics and dentofacial orthopedics.

Dr. Rubino strongly believes in continuing education and regularly participates in lectures and seminars to stay informed of the most current orthodontic and dental techniques.

When not in the office, Dr. Rubino loves spending time with his friends and family. Dr. Rubino lives on long island with his wife Deirdre, a Speech-Language Pathologist, their son Billy and daughter Breanna. Dr. Rubino enjoys golf, traveling, time at the gym, and trying new restaurants.


Dr. Danielle Cooper

Dr. Danielle Cooper

Dr. Danielle Cooper is originally from California and received her bachelor's degree in Integrative Biology at University of California, Berkeley. She received her degree in dental medicine and completed her two year pediatric dental residency at the University of Pittsburgh School of Dental Medicine. Dr. Cooper continued her career as a full time faculty member at the University of Pittsburgh, treating her own patients and teaching dental students and pediatric dental residents. She is a Board Certified Pediatric Dentist specialized in treating children of all ages, including those with special health care needs. Dr. Cooper strongly believes in life-long education and is an active member of the American Academy of Pediatric Dentistry, frequently attending continuing education courses to stay up to date on current techniques and materials. Dr. Cooper loves working with children every day and strives to make her patients feel comfortable, safe, and excited about their oral health so they are excited to come back to the dentist. Her patients leaving with a smile is the best part of any day for her. In her free time Dr. Cooper enjoys reading, movies, good food and spending quality time with her friends and family.


Dr. Margaret Lin

Dr. Margaret Lin

Dr. Margaret Lin moved from Taiwan to New Jersey when she was a teenager. She received her B.A degree from Barnard College and Doctor of Dental Surgery from Columbia University College of Dental Medicine.

Following dental school, Dr. Lin completed a General Dentistry residency program at Beth Israel Medical Center. She then went on to complete another year of Advanced Education in General Dentistry program at Columbia University New York-Presbyterian Medical Center where she continued to learn techniques in General Dentistry, and taught dental students.

Dr. Lin is committed to keeping up with the latest advances by attending continuing education courses. Her treatment involves caring comprehensive dentistry for the entire family where she also developed her passion working with children and teenagers.

Dr. Lin currently treats our older patients with "teenage dental needs" while providing calming bedside manner!

Dr. Lin enjoys being a soccer mom when she is not working and she also enjoys spending time with her family and friends by exploring new places and restaurants.


Dr. Adam Felline

Dr. Adam Felline

Adam Felline grew up in Staten Island, NY. Dr. Adam graduated from SUNY Stony Brook in 2010 with a B.S. in Health Science. He then continued his education at the University of Pennsylvania, School of Dental Medicine, and graduated in 2014 with honors in treating medically complex patients. He completed his General Practice Residency at Staten Island University Hospital where he graduated as the Chief Resident. Dr. Adam went to St. Joseph's Regional Medical Center in Paterson, NJ to complete his advanced training in Pediatric Dentistry. This competitive program where only one resident per year is accepted is where he received extensive training in IV sedation, general anesthesia, and also special needs.

"As a pediatric dentist, my primary goal is to help make children feel comfortable in the dental setting while making it enjoyable and fun."

Dr. Adam's compassion, patience and dedication is what allows him to relate with children and be able to get through any procedure safely and efficiently.

When not practicing dentistry, Dr. Adam is a father to his wonderful son, Leo, who keeps him laughing everyday. He also likes to travel with his wife, Jessica, a prestigious oral surgeon also based on Long island, and competes in triathlons throughout the New York area.



Dr. Khrystyna Leskiv

Dr. Khrystyna Leskiv

Dr. Khrystyna Leskiv received her DDS degree from New York University College of Dentistry. After completing General Practice residency at Maimonides Hospital Center in Brooklyn, NY and working for a year as a general dentist, she pursued her passion of working with children and completed two years of Pediatric Dentistry residency at Bronx-Lebanon Hospital Center in Bronx, NY. She is a board-certified pediatric dentist.

Dr. Khrystyna’s focus is for every child to have a positive dental experience. She strongly believes in educating both patients and parents about the importance of oral health care and helping to establish good oral health habits.



Dr. Michael Park

Dr. Michael Park

Dr. Michael Park grew up near Chicago, IL. He studied biological sciences at Cornell University in Ithaca, NY and went to receive his dental education at Columbia University earning his DDS in 2015. He then completed a two-year residency in pediatric dentistry at New York University.

He is a member of ADA (American Dental Association) and a Board Eligible member of AAPD (American Academy of Pediatric Dentistry). His goal is to always make the child feel at ease by striving to provide positive and fun memories at their visit to the dentist.

He enjoys watching and playing sports, especially basketball and soccer.


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