9th Lobby

Ninth District Headquarters Office - Hawthorne, NY

Dan Doyle Portrait (002)

2023 Ninth District President

Dr. Daniel Doyle

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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.

New Ninth District Lgo

New Dentist

Ice Cream Social

Wednesday, September 27th


We will have the Ice Cream Emergency truck!


FREE event with wonderful gourmet ice cream and toppings! Come mingle and meet other 9th District New Dentists and visit your 9th Headquarters!

Make friends and business colleagues!

Please spread the word to other new dentists.


Bank of America Practice Solutions
Kettenbach LP
MLMIC Insurance Company

To Register please call HQ 914-747-1199.

Latest News Around the Tripartite

Around the Ninth District

Southern Westchester Dental Forum

  • Tue, Sep 19, 2023 | 6:30 PM - Tue, Sep 19, 2023 | 9:30 PM
  • Location: Trattoria 632
  • Address: 632 Anderson Hill Rd, Purchase, NY
  • Contact: Dr. Nick Mastroianni
  • Email: mastroin@gmail.com
  • How to find us: For Directions, Call: 914-481-5811
  • Phone: 845-803-9789

"A Practice Owner's Guide to the Business Side of Dentistry"

Mr. Casey Hiers & Mr. Chad Tothero
                Four Quadrants Advisory

Do things like debt, poor insurance reimbursements, inconsistent income, tax surprises, and uncertainty about retirement keep you up at night?  Is there a pit in the bottom of your stomach telling you that your practice could be making you more money, allowing you to save more, and ultimately, retire on your own terms?

If you answered "yes" to any of these questions, if you're not willing to settle, then this course is for you.

Discover how everything is linked - cashflow in the practice, at home, retirement, accounting, taxes, overhead, investments - and how lacking the right systems and processes can throw everything off.

Learn rules for better cashflow and overcoming poor insurance reimbursements, the ideal account balances that create financial stability and consistency, and how to structure your income to minimize your tax burden and maximize your retirement savings.

Understand the importance of dental-specific accounting processes, why timely reconciliation of your accounts is crucial, and how a more detailed chart of accounts allow you to better control overhead, ensuring you'll never endure another tax surprise again. 

Hear real-life success stories about your peers and how the strategies covered in this course have allowed them to become financially stronger without having to dramatically increase production or change their lifestyles.

Recognize that treating the business side of your practice with the same expertise as the clinical side, can make a 7-to-8 figure difference over the course of your career.