Chief Medical Officer
Richard Pitts, D.O., Ph.D.
Expertise: Clinical Practice, Occupational Health, Hospital Leadership
Certifications: Diplomate, American Board of Emergency Medicine; Diplomate, American Board of Preventive Medicine
Deputy Chief Medical Officer
Zeinab Dabbah, M.D., J.D., MPH
Expertise: Primary Care; Commercial, Medi-Cal and Medicare Managed Care; Medical Group Operations
Certification: Diplomate, American Board of Internal Medicine
Medical Director, Medicare Programs
Steven Arabo, M.D.
Expertise: Internal Medicine, Medicare Managed Care
Certification: Diplomate, American Board of Internal Medicine
Medical Director, CalAIM
C. Hsien Chiang, M.D., FASAM, FACCP, CCHP-P
Expertise: Public Health, Justice-Involved Populations
Certifications: Fellow, American Society of Addiction Medicine; Fellow, American College of Correctional Physicians
Medical Director, Medical Management
Himmet Dajee, M.D., FACS
Expertise: Cardiac and Thoracic Surgery
Certification: Diplomate, American College of Thoracic Surgery
Medical Director, BehaviorAL Health
Natalie Do, D.O., Pharm.D.
Expertise: Adult, Child and Adolescent Psychiatry
Certification: Diplomate, American Board of Psychiatry and Neurology
Medical Director, PACE
Donna Frisch, M.D.
Expertise: Internal Medicine
Certification: Diplomate, American Board of Internal Medicine
Medical Director, Delegation Oversight
Robin Hatam, D.O.
Expertise: Internal Medicine
Certification: Diplomate, American Board of Internal Medicine
Medical Director, Street Medicine
Claus Hecht, M.D.
Expertise: Emergency Medicine
Certification: Diplomate, American Board of Emergency Medicine
Medical Director, Equity and Community Health
Shilpa Jindani, M.D.
Expertise: Family Practice, Appeals and Grievance
Certification: Diplomate, American Board of Family Medicine
Medical Director, Transplant/Credentialing
Richard Lopez Jr., M.D., FACS
Expertise: Transplant Surgery
Certification: Fellow, American College of Surgeons
Medical Director, Medical Management
Nguyen Luu-Trong, M.D., FAAFP, MBA
Expertise: Family Practice
Certification: Fellow, American Academy of Family Physicians
Medical Director, Whole Child Model
Thanh-Tam Nguyen, M.D., FAAP, MS
Expertise: Pediatrics, California Children’s Services
Certification: Fellow, American Academy of Pediatrics
Medical Director, Appeals and Grievances/Case Management
Tanu Shweta Pandey, M.D., MPH, FACP
Expertise: Internal Medicine, Preventive Medicine, Case Management
Certification: Fellow, American College of Physicians
Medical Director, Quality
Mohini Sinha, M.D.
Expertise: Pediatrics
Certification: Diplomate, American Board of Pediatrics