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Public Notice for Daly City Patients

San Mateo Medical Center was informed of a potential data breach of personal health information for patients of our Daly City Clinic. We regret this incident occurred and are reinforcing our policy that all documents with patient information should be placed in a confidential bin for shredding. For more information, please review the public notice of data breach below.

Notice of Data Breach
Breach Help

Aviso de Fuga de Datos
Ayuda en caso de robo de datos confidenciales

SMMC: Leaders



San Mateo Medical Center is led by a talented team of strategic thinkers who have dedicated their careers to serving the community.

General information

Executive Management Team

Chief Executive Officer
Chester Kunnappilly, MD 

Chief Operations Officer 

Chief Financial Officer 
David McGrew

Chief Medical Officer
Susan Fernyak, MD 

Chief Nursing Officer & Deputy Director of Inpatient Services
Joan Gygax Spicer, RN, PhD

Chief Quality & Experience Officer
Alpa Sanghavi, MD

Deputy Director of Psychiatric Services

Deputy Director of Ambulatory Services
Brighton Ncube

Medical Director of Ambulatory Services
Jeanette Aviles, MD

Human Resource Manager
Angela Gonzales

General information

Medical Executive Committee


Chief of Staff
Bryan Gescuk, MD

Vice Chief of Staff
Julie Hersk, MD

Gordon Mak, MD

Immediate Past Chief of Staff
Janet Chaikind, MD

Department Chairs

Emergency Medicine
Chair: Serena Lee, MD 
Vice Chair: Vacant

Chair: Frank Trinh, MD
Vice Chair: Suja Georgie, MD

Primary Care
Chair: Sumita Kalra, DO 
Vice Chair: Allen Tong, MD

Chair: Katalin Szabo, MD
Vice Chair: Vacant

Chair: Scott Lock, MD
Vice Chair: Kenton Fong, MD

Members at Large

Rebecca Ashe, MD
Steve Hassid, MD
Vivian Levy, MD
Chris Threatt, MD
Diana Wertz, MD
Alex Ding, MD

Affiliate Staff

Cama Lock, PA
Sophie O’Shaughnessy, NP


Chester Kunnappilly, MD, CEO
Susan Fernyak, MD, CMO