Contact Us

Corporate Mailing Address

4938 Hampden Lane, Suite 800

Bethesda, MD 20814

Corporate Office

6701 Democracy Blvd, Suite 300

Bethesda, MD 20817

(Please do not send mail to this address.)

The DIR® Institute at Livingston

5 Regent Street, Suite 508

Livingston, NJ 07039

(Please do not send mail to this address.)

Email Us

Email is the best way to reach us.

General Inquiries:

DIRFloortime® Training Program:

DIR® Institute:

Media & Public Relations


Main: 301-304-8834

*The most effective way to communicate with ICDL is by email. We will return calls, but we do not have a staffed call center since most communication and inquires we receive are via email.

Suggestions, Compliments, and/or Complaints

We welcome your suggestions and want to try to resolve any complaints you might have. We invite to discuss your suggestion or complaint with any available member of the ICDL faculty or staff ore email us at You can also always contact ICDL’s CEO, Jeff Guenzel at