“I believe everyone deserves a beautiful smile that will last a lifetime. Every time one of my patients’ braces come off, I can see their confidence and self-image increase. That’s why I think being an orthodontist is so important.” — Dr. Ostreicher

Dr. David Ostreicher graduated from Clark University and attended Columbia University School of Dental Medicine, where he received his dental degree and certificate of specialty in orthodontics. After dental school, he continued his education and earned a his master’s of science in nutrition and a master’s in public health from Columbia.

Dr. Ostreicher is professor emeritus at Columbia University and the University of New Haven. He is a member of the American Dental AssociationAmerican Association of OrthodontistsAmerican Public Health Association, and the Honorary Dental Society (OKU). After serving many years on the board of directors of the Nassau County Dental Society, he became president of the New York State Dental Association.

Dr. Ostreicher has published dozens of articles on dentistry and health, and served as editor of For Dentists Only, a scientific dental journal. His books, Brush Your Teeth! and other simple ways to stay young and healthy and 7 Reasons to Straighten Your Teeth, are available at Dr. Ostreicher is also a speaker for the National Bone Health Alliance, and a lecturer for Align Technology, Inc., the makers of Invisalign®. He is the orthodontist who teaches other dentists how to use Invisalign!

Dr. David lives in Syosset. He has two daughters, Skye and Brie.


“I am very fulfilled by my profession and know that I am changing lives for the better every time a patient leaves the office with a beautiful, healthy smile.” — Dr. McAndrews

Born and raised on Long Island, Dr. Bronwyn McAndrews attended C.W. Post College (now LIU Post). She received her dental degree from the University of Southern California and did her orthodontic residency at the University of Connecticut.

Over the years, Dr. McAndrews has enjoyed membership in the American Dental Association, American Association of Orthodontists, and the state dental societies of New York, California, and Connecticut. After practicing for years in Fairfield, Connecticut, Dr. McAndrews joined Dr. Ostreicher’s practice in 1994.

Dr. McAndrews and her husband Paul enjoy traveling all over the world. They have been to all seven continents. Now they are content to stay home with their twin boys, Tim and Tad.


We recognize that all our patients are unique and deserve to receive orthodontic care that reflects their individual needs. Our experienced and talented team is committed to working with you and your family to create a comfortable, stress-free, and rewarding orthodontic experience every time you visit our practice.

We are pleased to welcome you and your family, and we look forward to working with you.


Albert has been a dental hygienist since 1992. A SUNY Farmingdale graduate, Albert is also is a big Yankee fan and ran the 2006 NYC Marathon. He lives in Deer Park with his wife Michelle and their two children, Jordan and Jaelyn. They have two dobermans named Oakley and Tori. Go Yanks!


Daynette worked as a dental assistant from 1989 through 1998. She enjoyed the field so much, she decided to continue her education at SUNY Farmingdale. Daynette graduated from the dental hygiene program in 1998, and has been a part of Dr. David’s team ever since. She enjoys music, fishing, entertaining, and spending time with family and friends. Daynette is also a proud aunt of two nieces and four nephews.


Debbie started here as a dental assistant more than 25 years ago. She now handles just about every aspect of our office, but specializes in billing and handling all insurance needs. Debbie loves spending time cruising with her husband Bob and son Bobby.


Delia joined our office in 2001. Prior to becoming a dental assistant, Delia was a customer service representative. She enjoys working with children, and during her spare time, Delia loves to shop and spend time with her family.


Denise has worked for the practice since 1987. She has filled various positions in our office, but has been one of our hygienists since graduating from SUNY Farmingdale in 1996. Denise and her husband Dan enjoy spending time with their two daughters, Riley and Kaylee.


After 13 years as a customer service representative for Ridgewood Savings Bank, Donna joined our staff in 2000. Donna will make you feel like one of our family from the moment you walk in our office to the day you finish treatment. Donna is our resident Met fan. She is a true water lover and is passionate about deep sea fishing, boating, and swimming.


Elizabeth has been a dental assistant with us since 2002. She has enjoyed working in the dental field since the age of 14, and really likes working with children. Elizabeth loves spending time with her son Romeo, and she also has a weakness for shopping.


Elvie graduated from Monroe Community College for dental hygiene in 1999 and joined our team in 2007. A native of Rochester, NY, Elvie moved to Long Island in 2007 and married her husband Daniel. The two welcomed their son Hansen in 2008 and their daughter Ivana in 2010. Elvie loves shopping and spending time with her family and friends.


Eric is our laboratory technician extraordinaire, who joined our team in 2002. When he is not spending his free time with his wife Jill, he enjoys creating music and working on computers.


Whenever you come to the office, you can be guaranteed to see Jean’s smiling face. She has been an administrative secretary at the office since 1984 and takes great pride in her work. In her free time, Jean, her husband Al, and her dog Kiwi love to go boating.


Jyllian joined our staff in 2013 after earning her dental assisting degree. She is extremely cheerful, wonderful with children, and even finds time to sing in between seeing patients! Jyllian loves to spend her free time with her family, and play tennis and volleyball, as well as sing karaoke.


Karina has been a part of our staff as a dental assistant since 2003. She enjoys working with children and making their experience happy and memorable. She enjoys traveling to many parts of the world.


Michelle joined our office in 2013 as a dental assistant. She loves working with children. Michelle loves to spend time with her friends and family, and get her nails done.


Patty has been working for our team for more than 20 years. She handles all the correspondence between doctors and patients, as well as insurance and billing. Outside the office, Patty loves watching her boys play sports and spending time with her family.