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9th Lobby

Ninth District Headquarters Office - Hawthorne, NY


2022 Ninth District President

Dr. Stephen Ossen

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Office Safety Marketing Toolkit

A members-only, customizable marketing toolkit complete with videos, graphics and accompanying captions for use across social & more!

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ADA Encourages Vaccine


ADA strongly encourages COVID-19 vaccination among dental professionals

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Welcome to the Ninth District Dental Association

The Ninth District Dental Society was formed in 1909 and renamed to the Ninth District Dental Association in 2002. We have a membership of over 1500 dentists in 5 counties: Westchester, Rockland, Dutchess, Orange and Putnam.

In its quest to serve both the public and the profession, the Ninth District embodies the highest ideals.

The mission of the 9th District Dental Association is to serve and support its members and the public by improving the oral health of our community through Advocacy, Continuing Education and Camaraderie.

Latest News Around the Tripartite

CAQH ProView Credentialing Help Desk available during ADA system disruption

Help Desk is available while the ADA credentialing service is unavailable.

The ADA is making progress in restoring operations while the investigation into this cybersecurity incident continues. Check back regularly for the latest updates as we get back online. Our first relates to credentialing.

The CAQH ProView Help Desk is available to assist any dental providers who wish to attest or make updates to their profile while the ADA credentialing service is unavailable. Please contact the help desk at 1-888-599-1771 between the hours of 8 a.m. and 8 p.m. ET Monday-Friday. Dentists who need to send supporting documents to CAQH may do so by emailing them to Please be sure to include your CAQH ID in the subject line.

Dentists needing to create an account may contact the CAQH ProView Help Desk for a walk-through of how to register directly in ProView. The help desk can be reached at 1-888-599-1771, Monday-Friday, 8 a.m. to 8 p.m. ET.

We appreciate your patience and understanding. For additional questions, please contact the Member Service Center at


Around the Ninth District