Southern California Chapter

Serving all of Southern California, including the Greater Los Angeles area, Orange County, San Diego and the Inland Empire as well as Hawai'i.

Events

Find community and raise money for T1D research. Breakthrough T1D events are unforgettable experiences.

We all have a story of how T1D has changed our lives. As a Breakthrough T1D advocate, I use my voice to tell lawmakers our story of living with T1D and why research must continue.  

Mary Horn

Grassroots Advocate, Breakthrough T1D Advocacy

Get Involved

Whether you donate your time or dollars, life-changing breakthroughs in T1D treatments and therapies couldn’t happen without you.

Get Support

Find community and raise money for T1D research. Breakthrough T1D events are unforgettable experiences.

News

Follow us for updates

  Thank You, San Diego! Together, we raised $825,000 at the Breakthrough T1D One Night of Groove and Giving Gala—moving us closer to a future free from type 1 diabetes. Thank you for being part of this incredible movement—we can’t…

Events and Conferences Fundraising General Ride Signature Events Support Walk

  Thank You San Diego! On Saturday, April 26th, nearly 200 guests gathered for One Night of Groove and Giving, an elegant and vibrant 1970s-themed fundraising gala held at the Pendry San Diego. The theme was chosen as a way…

Events and Conferences Fundraising General Life with T1D Ride Signature Events Support Walk

  This week, we’re celebrating our dedicated volunteers who power the life-changing breakthroughs that make every day better for people living with type 1 diabetes (T1D). Whether you’ve helped us plan an event, led an advocacy effort, welcomed new families,…

Volunteers

  What an Unforgettable Night in Venice! With your help, we raised over $960,000 at the Breakthrough T1D One Night in Venice Gala on Saturday, March 15! We are so grateful for everyone who made this evening possible! Thank you…

Awareness Events and Conferences Fundraising General Life with T1D Ride Run Signature Events Support Walk

  Save the Date for the Orange County One Night Gala We are thrilled to invite you to an unforgettable evening at our “One Night in Venice” Gala on March 15th at Pendry Newport Beach! This year’s event will be…

Events and Conferences Fundraising General Life with T1D Ride Signature Events Support Walk

  Save the Date for the Orange County One Night Gala Under the leadership of Co-Chairs, Michi Arena, Cathie Lawler and Bill Peters, the 2025 One Night Gala will take place at the elegant Pendry Newport Beach on Saturday, March…

Events and Conferences Fundraising General Ride Signature Events Support Walk

Leadership

Whether you donate your time or dollars, life-changing breakthroughs in T1D treatments and therapies couldn’t happen without you.

Michelle Popoff

Executive Director

John Stoner

President, Board of Directors, Orange County

Tony Marks

President, Board of Directors, Los Angeles

Lina Pitesa Waage

President, Board of Directors, San Diego

Contact Us

1391 Warner Avenue
Suite D
Tustin, California, 92780

949-553-0363

949-553-8813

Mail and Donations Address

PO Box 5070
Hagerstown, MD, 21741-5070