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Adult Primary Care

Joseph Longnecker DO Primary Care

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Dr. Joseph Longnecker is a primary care physician at Caduceus Medical Group.  He graduated from Ohio State University and medical school at Kirksville College Of Osteopathy and Surgery. Dr. Longnecker specializes in family practice and he is board certified in pediatrics.  He has been practicing in North Orange County for over 35 years and although ... read more

Daniel May MD Primary Care

Daniel May MD

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Dr. May is a primary care physician at our Yorba Linda family practice.  He completed his undergraduate education at California State University at Fullerton. He received his medical degree from the University of California at Irvine.  His post graduate training was completed at University of Southern California Presbyterian InterCommunity Hospital, where he was Chief Resident. ... read more

Scott Penkoff MD Primary Care

Scott Penkoff, M.D.

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Dr. Penkoff is a primary care physician and provides general medical care to patients of all ages, from adolescents to geriatrics.  Dr. Penkoff received his undergraduate degree at California State University, Fullerton, earning a B.A. in Biology. He then completed medical school, internship and residency at the University of Southern California. He sees patients at Yorba ... read more

Dennis J. Ponzio MD Primary Care

Dennis J. Ponzio MD

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Dr. Ponzio is a primary care physician and completed his undergraduate education at the University of North Dakota, where he also received his medical degree. His post graduate training was completed at Northridge Hospital Medical Center. He is certified by the American Board of Family Practice. In his off duty hours, he enjoys music, baseball, ... read more

John Sanguedolce MD

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It has always been a dream of Dr. Sanguedolce's to become a family physician in Orange County. He believes in getting to know all aspects of his patients and believes routine follow up leads to the best outcomes in preventing illness. Educating patients is his favorite part of practicing medicine. As for his education, he ... read more

Carlos Sobral MD Primary Care

Carlos Sobral MD

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Dr. Carlos Sobral is a primary care physician and his life in medicine started in La Habra and he has been practicing in Orange County for over 20 years. He became progressively interested in cholesterol, heart, and stroke risk and his interests took him to advanced lipid testing and analysis. Training Undergraduate 1966 – 70 ... read more

Alyssa Tonelli DO Primary Care

Female physician posing in white lab coat

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Dr. Alyssa Tonelli is a primary care physician at our Yorba Linda family practice and was also raised in Yorba Linda. She played varsity tennis at El Dorado and went on to graduate from Stanford with honors. Afterward, she completed her DO degree at Western University of Health Sciences and pursued a family medicine residency ... read more