Careers With St. Joseph Health

Our Values are more than just words.

They form the heart and soul of St. Joseph Health and are the prime reason we attract and retain high-caliber employees who believe in the sanctity of their work in our faith-based setting.

Recent News

Irvine school nurses, staff learn Stop the Bleed techniques to respond in mass-casualty situation

Irvine school nurses and athletic trainers on Tuesday, Jan. 30, learned simple techniques that could save lives in a shooting or other ...

Read More

Families anticipate exciting community blessing of surgical center

A community is as strong as its hospital, and with recent investments into Covenant Health Plainview, it’s evident that to our friends ...

Read More

Severe Flu Season Tightens Its Grip on U.S.

Americans are being hit with one of the worst flu seasons in years, with misery now widespread across 46 states, health officials say. In ...

Read More

About St. Joseph Health

SJH provides a full range of care facilities including 16 acute care hospitals, home health agencies, hospice care, outpatient services, skilled nursing facilities, community clinics and physician groups. All of our hospital and home health entities are accredited by the Joint Commission. In our award-winning facilities, SJH maintains a "continuum of care," matched to the diverse needs of the urban centers, smaller cities and rural communities who depend on us every day.

Ronald N. Adamany, MD

4.7 out of 5 (115 Ratings)
  • Gastroenterology
Medical Groups & Affiliations
  • Mission Heritage Medical Group
27871 Medical Center Dr.
Suite 200
Mission Viejo, CA 92675
Accepting New Patients

Primary Office

27871 Medical Center Dr.
Suite 200
Mission Viejo, CA 92675
Get Directions
(949) 364-5090
(949) 364-5427
Mon - Fri 8:30 a.m. - 4:30 p.m. Phones turned off for lunch between 12 p.m. - 1:30 p.m.

Secondary Office

St. Joseph Heritage Medical Group
2501 E. Chapman Ave.
Suite 407

More Information

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Gastroenterology
    Education & Training
    • Medical School
      Howard University- College of Medicine
    • Internship
      Greenwich Hospital
    • Residency
      Greenwich Hospital
    • Fellowship
      Buffalo General Hospital - 1985
    Areas of Interest


  • Biography



    Ronald N. Adamany, M.D. is a graduate of George Washington University and Howard University College of Medicine. He completed his residency in the Greenwich Hospital-Yale New Haven Health System and Fellowship at State University of New York in Buffalo.

    Dr. Adamany is Board Certified by the Board of Gastroenterology and the Board of Internal Medicine. He has been in practice in Mission Viejo since 1985.

    In 2009 Dr. Adamany was recognized as a Physician of Excellence by the Orange County Medical Association as published in Orange County Magazine.

    Dr. Adamany is a Medical Advisor for the Celiac Sprue Association, Orange County Chapter.

    Dr. Adamany has served as Mission Hospital Chief of Staff as well as Chairman of the Department of Medicine and Chief of Endoscopy Subsection. Dr. Adamany performs office and hospital consultations, diagnostic and therapeutic endoscopic procedures as well as Capsule Enteroscopy (PillCam).

    Board Certified Gastroenterology, 1987
    Board Certified Internal Medicine, 1985
    American Gastroenterology Association
    American Society of Gastrointestinal Endoscopy
    Past Mission Hospital Chief of Staff
    Past Chairman of the Department of Medicine and Chief of Endoscopy Subsection at Mission Hospital.
  • 16-Nov-2018
    all good
    without good people and listening skills. he can't keep a single bit of relavent in his head (he has the chart on the computer open) simply cannot recommend this doc to anyone
    very confused as to why the office seemed to be focused on a colonoscopy and not my problem at hand of having pain in the upper abdomen. though the doctor ordered tests for an ultrasound and HIDA scan the office never processed this information and instead ordered Rx for suprep when no colonoscopy was scheduled. I would have liked more information from office in the the HIDA scan. colonoscopy was to be the third step in diagnosis of my pain not the first. I had to follow up two weeks later to find that the orders were never sent on ultrasound and again after ultrasound when office called to refer me to set appt for HIDA the orders were never sent to Hoag.
    I have full confidence in *Dr. Adamany. He is a good listener & genuinely sincere in his concern for me.
    *Dr. Adamany is great. He's provided excellent care for 15 yrs. or more.
    15 Total Comments Page 1 2 3   Next