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CONTACT: Frankie Gallagher
Hazel Hawkins Memorial Hospital
Phone: (831) 636-2644


 Mary Casillas Chosen as Chief Operations Officer

HOLLISTER, CA – April 6, 2022:   Today, Steven M. Hannah, Chief Executive Officer, Hazel Hawkins Memorial Hospital announced the appointment of Mary Casillas, MHA, BSM, as Chief Operations Officer| Vice President of Ambulatory Service.

“Mary brings significant experience in hospital l and system leadership. Her roles include an impressive record of directing, coaching and mentoring, as well as implementing strong processes for advancing the delivery of safe and effective healthcare services,” said Mr. Hannah. “It became clear, through our extensive interview process, Mary’s aptitude and commitment to the mission of our Healthcare District makes her an excellent fit for the role and a complement to our Leadership team,” said Hannah.

Representing Zone 4, Casillas was elected to the San Benito Health Care District Board of Directors in November 2018.  Mary will resign her elected position and the Board of Directors will discuss filling the Zone 4 position during their April 28, 2022 public meeting.

Ms. Casillas has a long and honored family history of service to Hazel Hawkins Memorial Hospital.  “Mary’s demonstrated commitment to our Mission, coupled with her experience in advancing regional healthcare systems is an added value to the expertise we have in our Executive Leadership,” stated Steven Hannah, Chief Executive Officer.



About Hazel Hawkins Memorial Hospital

Hazel Hawkins Memorial Hospital, established in 1907, is licensed as General Acute Care Hospital currently operating with Critical Access Hospital designation.  As a public agency, our healthcare system provides timely, efficient care with compassion and a commitment to excellent service.  Hazel Hawkins Memorial Hospital, (HHMH) is meeting the healthcare needs of San Benito County through a coordinated continuum of outpatient primary and medical specialty care as well as diagnostic services across multiple locations. Learn more about Hazel Hawkins Memorial Hospital and our health system by visiting



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