Charter Oak Management Staff

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John Meier

Chief Executive Officer

Adib Bitar, M.D.

Medical Director

Janine Nguyen

Chief Financial Officer

Said Jacob, M.D.

Associate Medical Director

Mimi Mangune

Chief Nursing Officer

San Juana Laurel

Director of Utilization Review

Danielle Buckland, LCSW

Director of Clinical Services



Vickie Esquibel

Health Information Manager, HIPAA Officer

Robin McGeough

Director of RTC &

Chemical Dependency Services

Jackie Cheramie

Director of Needs Assessment

Kathlene Johnson

Business Office Director

Genie Miranda 

Director of Outpatient Services

Martha Rojas

Director of Food Services 

George Tabullo

Director of Plant Operations

Christine de la Paz

Director of Human Resources

Maria Bucana

Director of Quality Assurance & Risk Management