3020 Westchester Ave, Suite 200
Purchase, NY 10577

Leonard Mark, DDS
Adult Restorative Dentist
Dr. Mark has 35 years of dental practice experience including 27 years of private practice. He is an Associate Clinical Professor at Albert Einstein College of Medicine and Senior Attending at Montefiore Medical Center Dental Dept. He is a fellow with the Academy of General Dentistry and former fellow of The American Association of Hospital Dentists. Outside of work, he loves fishing, tennis, the NY Giants and NY Rangers!


Erica Bly-Fish, DMD
Pediatric Dentist
Dr. Erica graduated Magna Cum Laude from St. Bonaventure University (1999) with a degree in Biochemistry. She received her Doctorate of Dental Medicine from Boston University (2003), where she continued 2 more years of specialty training in Pediatric Dentistry (2005). Dr. Erica has developed a family-oriented Pediatric Dental practice built on the love of children and her desire to establish lifelong relationships of trust and confidence. Dr. Erica is an active member with the American Academy of Pediatric Dentistry. Outside of work, Dr. Erica can be found with her husband, kids & puppy hiking, camping, crafting, or gardening.



Dina Iommazzo, DDS
Dr. Iommazzo earned her Certificate in Prosthodontics at the University at Buffalo, in conjunction with the Buffalo V.A. Hospital and the Roswell Park Cancer Institute. With extensive training in dental materials, esthetics, dental implants and full mouth rehabilitation, she can expertly create a treatment plan that will restore both beauty and function to your smile. She also completed a General Practice Residency at the Long Island College Hospital which included rotations in medicine, surgery and geriatric care. She earned both her D.D.S. and B.A. in Biology/Psychology at New York University and has been honored with several awards for excellence and service throughout her career. Dr. Iommazzo practiced for over 20 years in Mamaroneck, N.Y. dedicated to delivering treatment in an attentive and compassionate manner. She is a member of the American College of Prosthodontists, the ADA, the NYS and the Ninth District Dental Associations, as well as an advocate for the hearing impaired and those with special needs. When out of the office, she enjoys yoga, pilates, gardening and spending time with her husband and their three children.



Gabriela Ganoza-Duron, DDS
Pediatric Dentist
Dr. Gaby received her DDS dental degree in 2000 from Caytano Heredia Peruvian University (Lima-Peru), continued her postgraduate education in Rochester NY, completing 3 years of extended general dentistry training (AEGD, GPR) and 2 years of pediatric Dentistry (2006). Dr. Gaby is a Clinical Instructor at Columbia University Dental School and an active member with the American Academy of Pediatric Dentistry. She is fluent in Spanish with a basic knowledge of French. She resides in Westchester with her 3 children and husband and loves to travel.


Kyle Sever, DDS
General Dentist
Dr. Sever is a graduate of Stony Brook School of Dental Medicine and completed his General Practice Residency at Saint Barnabas Hospital where he was named Resident of the Year. Being a total “foodie,” Dr. Sever spends his spare time trying out recipes in the kitchen and searching for new culinary hot spots.



Libel Eduardo, DDS

General Dentist

Dr. Eduardo received her degree from Autonomous University of Santo Domingo and earned her dental degree from University of Puerto Rico. She completed her residency under the direction of Dr. Leonard Mark at Montefiore Medical Center. She speaks Spanish, English, and Portuguese, and she takes a detail-oriented, passionate, and empathetic approach to dental care. She has extensive training and experience in comprehensive dental treatment and planning and execution of complex cases to improve function and aesthetics. When she is not practicing dentistry, Dr. Eduardo enjoys listening to music, going to the beach, dining out, exercising, and traveling.



Isaac Chinitz, DDS


Dr. Chinitz received his bachelor’s degree from Columbia University and earned his dental degree from Stony Brook University School of Dental Medicine, where he also completed advanced training in orthodontics. He believes in spending time with his patients to ensure they feel comfortable and understand the orthodontic treatment being provided. It is important to him that his patients are happy. When he is not practicing orthodontics, Dr. Chinitz enjoys spending time with his family, running, skiing, and playing tennis.



Meet Our Team

Our friendly dental team at OneDent of Westchester is experienced and highly trained in providing dental care to meet all of your needs. When you visit our welcoming practice, our team will offer you the excellent, gentle care you need and deserve to enjoy a healthy, beautiful smile. We invite you to call us at 914-750-4376 to learn more about our dental care in Purchase, New York, and to set up your appointment with one of our talented dentists. We look forward to meeting you soon!

Administrative Staff

Lisa, Jean, Dora, Sayra, Julie, Natacha, Jessie, Iliana


Dental Assistants

Edna, Jennifer, Debra, Johana, Tatiana, Lela, Alexis, Ariana, Not Pictured; Jeannie, Karin


Hygiene Staff

Millie, Vanessa, Brenda, Nicole G., Fabiana, Not Pictured; Michelle, Nicole C., Mildred


Experience a New Concept in Dentistry

Meet Dr. Mark

Meet Dr. Bly-Fish

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