California Chapter
Featured 
California Southern 1 Region Governor-elect Election Candidates
Voting for the next Governor-elect takes place from September 25-November 6, 2026. Eligible voting members (MACPs, FACPs, Members, Fellows-in-Training, and 2-year Resident Members with an elect date of 9/1/2024 or earlier) will receive an election email containing their unique and personal voting credentials to vote online.
Featured
California Southern 2 Region Governor-elect Election Candidates
Voting for the next Governor-elect takes place from September 25-November 6, 2026. Eligible voting members (MACPs, FACPs, Members, Fellows-in-Training, and 2-year Resident Members with an elect date of 9/1/2024 or earlier) will receive an election email containing their unique and personal voting credentials to vote online.
Meetings & Events View All
- 2026 SoCal Regions 1 & 2 Annual Scientific Meeting
September 26, 2026
Hotel Fera Anaheim | Orange, CA - 2026 SoCal Region 3 Annual Scientific Meeting
October 24, 2026
Sharp Prebys Innovation and Education Center | San Diego, CA
Chapter News View All
- Meet the SoCal Region 1 Governor-elect Election Candidates! September 2026
- Meet the SoCal Region 2 Governor-elect Election Candidates! September 2026
- Congratulations New Chapter Fellows September 2026
- 2026 Chapter Excellence Award Winner September 2026
- California Southern III Chapter Receives the 2026 John Tooker Evergreen Award June 2026
- Chapter Members Presenting at Internal Medicine Meeting 2026 February 2026
- Congratulations to Drs. Chin, Dahms, and Pena Ruiz on National Awards December 2025
Toolkits & Resources View All
About the Chapter
Danny L Sam, MD, FACP
Governor
California Northern
Eric Hsieh, MD, FACP
Governor
California Southern Region I
Rejan C. McCaskill, MD, FACP
Governor
California Southern Region II
Vineet Gupta, MD, SFHM, FACP
Governor
California Southern Region III
Chapter Contacts
Names and contact information for the Governors and Chapter Executive Directors of the California Chapters.
Chapter Contacts
Podcasts: The DEI Shift
Advocacy
Links to Legislatures and online resources to contact your representatives and learn about key health policy issues. In addition, find information on local HPPC Committees as well as important Medicare updates.
Chapter Volunteer Opportunities
We've added more ways to get involved with ACP! Take a few minutes to complete your new Membership Engagement Profile.
Southern California Region 1 Voluntary Contributions
Your contributions help ACP Southern California Region 1 empower and elevate internal medicine physicians through mentorship, advocacy, and education.
Southern California Region 2 Voluntary Contributions
With your help, our Chapter can invest in the future of medicine, advance lifelong learning, support physician wellbeing, and be a voice for change.