Our Providers Directory

Anne Weidner RNP

Specialty: Adult Primary Care, Physician Assistants and Nurse Practitioners

Anne spent almost a decade she worked as a registered nurse in a local hospital on a post-surgical floor. She decided to switch gears and move into primary care/urgent care role at Caduceus. She is an avid sports fan and enjoys family time with her husband and daughter. She sees patients in Yorba Linda, Orange, ... read more

Paul Weinstein MD

Specialty: Cardiology

Dr. Weinstein is certified by the American Board of Internal Medicine in both Internal Medicine and Cardiovascular Diseases. He received his undergraduate degree in Biology at University of California, Irvine, and completed medical school at Wayne State University in Michigan. Dr. Weinstein returned to California and completed his internship, residency, and a cardiology fellowship at ... read more

Mackenzie Williams NP

Specialty: Adult Primary Care, Pediatrics, Physician Assistants and Nurse Practitioners

Mackenzie Williams is a board certified family nurse practitioner. She received a bachelor's in science with a focus in Integrative Physiology from the University of Iowa, a Bachelor's in Nursing from the University of Rochester and a Master's in Family Nursing Practice from Western University of Health Sciences. Currently, Mackenzie is working on a doctorate of ... read more

Christina Yarwood PA-C

Specialty: Adult Primary Care, Physician Assistants and Nurse Practitioners

Completed her undergraduate education at the University of Idaho and attended graduate school at Western University of Health Sciences. Her personal interests include medical missions, water sports, and dancing. Her professional interests include pediatrics and women's health. She sees patients at our primary care office in Yorba Linda.... read more

John W. Zamarra MD

Specialty: Adult Primary Care, Caduceus Physicians, Cardiology, Internal Medicine

John W. Zamarra MD FACC was one of the first cardiologists to research the effects of meditation on coronary heart disease and to introduce it into clinical cardiology practice. His background bridges the traditional western medical traditions and the holistic natural Eastern traditions giving him a unique insight on healthcare. H completed his post-graduate internal ... read more