About Orange County OBGYN

About Practice

Yonatan Mahller, MD, Ph.D. 

Yonatan Mahller, MD, Ph.D., provides expert obstetric and gynecologic care to women of all ages in Orange County. Patients can access a full range of services at his office in Newport Beach, California, where he offers well-woman care, care for low and high-risk pregnancies, pre-conception and infertility counseling and treatment for menopause. Dr. Mahller combines excellent surgical training with cutting-edge technology, including the MonaLisa Touch® laser that treats vaginal discomfort associated with menopause and urinary incontinence. Dr. Mahller is a native of Southern California, where he obtained a Bachelor’s degree in physiology and a Master’s degree in molecular biology. He then relocated to the Midwest to attend the University of Cincinnati College of Medicine, where he completed a dual degree program (MD/Ph.D.), obtaining a Ph.D. in developmental biology. He returned to California and completed residency in obstetrics and gynecology at the prestigious Cedars Sinai Medical Center in Los Angeles. Throughout his medical training, Dr. Mahller won numerous awards recognizing his caring bedside manner and stellar surgical skills. While in graduate school, he performed significant preclinical research studies utilizing novel anticancer agents and authored numerous publications on topics such as cancer stem cells. He has given multiple presentations at international scientific meetings. During residency, Dr. Mahller created and implemented a course for OB/GYN residents, teaching them the Spanish needed to provide care to Spanish-speaking patients. Dr. Mahller is board certified by the American Board of Obstetrics and Gynecology (ABOG) to provide a wide range of women’s health services, including pregnancy care and delivery, gynecology, minimally invasive surgery, infertility and well-woman care. His patients can count on him to devote the time needed to answer their questions, get to the underlying cause of their symptoms, and develop an individualized treatment plan. When he’s not caring for patients, Dr. Mahller likes to travel, cook, and spend time with his growing family.


Words from our patients

  • Yelp

    "There aren't enough good things I can say about Dr. Mahller and his staff! Dr. Mahller really listens to his patients and carefully addresses all of your concerns."

    Neda H.
  • Yelp

    "Dr. Mahller is one of those rare doctors who takes the time to answer every question and he has a wonderful bedside manner! I without a doubt recommend Dr. Mahller!"

    Debbie N.
  • Yelp

    "Our whole pregnancy and delivery was a beautiful experience because of Dr. Mahller. We can't thank him enough for bringing our beautiful baby girl safely into the world"

    Blaire B.
  • facebook

    "He is caring, comforting, relaxed and gentle. I recommend him highly if you're looking for a good doctor!"

    Kaylee B.
  • facebook

    "Dr. Mahller is a wonderful person and doctor with great sense of humor. He cares about his patients and knows his craft. I would definitely recommend him!"

    Irene S.
  • facebook

    "Childbirth was an absolutely wonderful experience, Dr. Mahller couldn't have been more courteous and did a fantastic job keeping me comfortable, happy and excited. "

    Ashley P.
  • Yelp

    "I can honestly say this pregnancy has been a great experience so far, and having Dr. Mahller as our doctor definitely helps. Highly recommended!"

    Holly E.
  • Yelp

    "I wouldn't trust anyone else with the well being of my little girl, I never felt worried during my pregnancy and always had peace of mind."

    Jessica M.
  • facebook

    "I had the best experience and was treated great throughout my pregnancy. Dr. Mahller has patience during consultation visits as well as delivering a baby."

    Joanna M.
Orange County OBGYN
355 Placentia Avenue, Suite 302
Newport Beach, CA 92663
Phone: 949-375-8244
Fax: 949-398-9812
Office Hours

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