Board of Directors
Executive Board (term expires)
Millie Das, MD President
Palo Alto
(2025)
Michael Zachary Koontz, MD Vice President
Monterey
(2025)
Mohana Roy, MD Secretary
Palo Alto
(2025)
A. Dimtrios Colevas, MD Treasurer
Palo Alto, CA
(2027)
Courtney G. Flookes Chief Executive Officer
Napa
Board of Directors (term expires)
Gigi Chen, MDPleasant Hill
(2027)
Helen K. Chew, MDSacramento
(2026)
Natalia Colocci, MD, PhDPalo Alto, CA
(2026)
Bradley C. Ekstrand, MDSan Mateo
(2026)
Matthew Gubens, MDSan Francisco
(2025)
Steve Y. Lee, MDOakland
(2027)
Jonathan W. Riess, MD, MSSacramento, CA
(2027)
Piyush Srivastava, MDWalnut Creek
(2026)
Lucas K. Vitzthum, MD, MASPalo Alto, CA
(2027)
Fellow Board of Director
Nia Beckley, MD
San Francisco
(2026)
Meetings
The ANCO Board of Directors meets by teleconference and in person to discuss issues pertinent to the Association and its members as well as educational meeting proposals. Board meetings are open to all members. Please e-mail or call the ANCO Executive Director at (415) 472-3960 to participate in a future meeting.
Past Presidents
Greenbrae (1990-1993)
Greenbrae (1994-1995)
San Carlos (1996-1997)
Berkeley (1998-1999)
Sacramento (2000-2001)
Chico (2002-2003)
Sunnyvale (2004-2005)
San Leandro (2006-2007)
San Francisco (2008-2009)
Santa Rosa (2010-2011)
Antioch (2012-2013)
Napa (2014-2020)
Vallejo (2021-2023)
“Being part of a multi-site private practice, we have a lot going on and I rely on ANCO for its fantastic education, CME opportunities and access to local experts at speaking engagements. ANCO also looks out for our best interests with its advocacy efforts and practice management tools. I look to them as a go-to local resource. There’s no question that ANCO membership is a great value for all it provides. I’m proud to be on the board and part of this thriving organization.”
Zachary Koontz, MD
Pacific Cancer Care