Physician Directory

New Search
Michael J. Santoro, MD

Michael J. Santoro, MD

(949) 364-5090
Primary Specialties
  • Gastroenterology
Medical Groups & Affiliations
  • Mission Heritage Medical Group
  • Additional Languages Spoken
    Italian, Spanish

Primary Office

27871 Medical Center Dr.
Suite 240
Mission Viejo, CA 92691
(949) 364-5090
(949) 542-8710
Mon 8 a.m. - 8 p.m.
Tue 8 a.m. - 8 p.m.
Wed 8 a.m. - 8 p.m.
Thu 8 a.m. - 8 p.m.
Fri 8 a.m. - 8 p.m.
Web Page:
Recommend this Physician Request an Update for this Physician
5 out of 5 (102 Ratings | 13 Comments)


Made me feel VERY comfortable & confident with his abilities. Great listener.
I was treated like I was a family member not a patient.
Excellent all around.
Excellent office & doctors.
*Dr. Santoro had great eye contact and treated me with enough time as though I was his only patient.
13 Total Comments Page 1 2 3   Next

Physician Bio

Dr. Santoro received his undergraduate degree at Villanova University, Pennsylvania. He received a Bachelor in Science with honors. He attended Medical School at the State University of New York Health and Science Center at Brooklyn. Dr. Santoro completed his internship and residency at Staten Island University Hospital. He received his GI Fellowship at Loma Linda University.

He is Board Certified in Internal Medicine and Gastroenterology and specializes in Gastroenterology.

Dr. Santoro is a fellow with the American College of Physicians (FACP) and a fellow with American College of Gastroenterology (FACG). He has served as chief of Gastroenterology at Saddleback Memorial Hospital, San Clemente Campus. Dr. Santoro has been recognized as Physician of Excellence with Orange Coast Magazine, 2005.

Dr. Santoro was born and raised in Brooklyn, New York. He has lived in California since 1990 and been in practice for 15 years. He is married with three children.

Dr. Santoro is committed to quality, personal care.


  • Fellowship:
    Loma Linda University - 1993
  • Residency:
    Staten Island University - 1990
  • Internship:
    Staten Island University - 1988
  • Medical School:
    State University of New York - Brooklyn, NY - 1987
  • College:
    Villanova University - 1983


American Board of Internal Medicine

Areas of Expertise

colon cancer screening and prevention, gastroesophageal reflux


Fellow of the American College of Gastroenterology, 1998 Fellow of the American College of Physicians, 1997

Areas of Interest

Board Certified Gastroenterology, 1994

Board Certified Internal Medicine, 1994