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St. Jude Affiliated Physicians
P.O. Box 4138
Fullerton, CA 92834

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Sajen J. Mathews, MD
Practice accepting new patients.

Sajen J. Mathews, MD

(714) 446-5831
Primary Specialties
  • Gastroenterology
    (Board Certified)
Secondary Specialties
  • Internal Medicine
    (Board Certified)
Medical Groups & Affiliations
  • St. Jude Affiliated Physician
  • St. Jude Heritage Medical Group

Primary Office

1847 Sunnycrest Dr.
Fullerton, CA 92835
(714) 446-5831
(714) 446-7051

Secondary Office

1401 Avocado Ave.
Suite 709
Recommend this Physician Request an Update for this Physician
4.8 out of 5 (110 Ratings | 17 Comments)


Continue good work.
We are with *Dr. Mathews because o of his excellent skills first and as importantly because of his care for us. He treats us like family. We are grateful for him & the quality of his care.
Dtr. Mathews is a wonderful doctor with a very warm and friendly personality. He truly takes time with us, his patients.
*Dr. Matthews is objective, kind, professional & a good listener.
17 Total Comments Page 1 2 3 4   Next

Physician Bio

My father was a factory worker and had great ambitions for me. He spent almost half of his salary on my education. The day I was accepted into the India Institute of Technology, the world’s finest engineering school, was one of the happiest of his life. Imagine his disappointment when I quit after a year to go to medical school. It was very difficult to tell my father, but I knew I had a passion for medicine and making a difference in people’s lives.

The collaboration between St. Jude Medical Center and St. Jude Heritage Medical Group allows me to focus on medical advancements, and practicing at the state-of-the-art Knott Family Endoscopy Center ensures my patients have access to the newest technology and treatment options available today.

Offering the latest procedures with the newest techology is a vital component of my practice, but I believe it is equally important to treat patients the way I would want to be treated. I take the time to listen to my patients’ concerns, educate them about their options and work with them to improve their health and well-being. This is why I became a doctor.


  • Medical School:
    Bangalore University , India
  • Internship:
    LAC-USC Medical Center - Los Angeles , CA
  • Residency:
    LAC-USC Medical Center - Los Angeles , CA
  • Residency:
    College Hospital - Cerritos , CA
  • Fellowship:
    LAC-USC Medical Center - Los Angeles , CA
  • Board Certified in Gastroenterology
  • Board Certified in Internal Medicine


  • Physicians of Excellence, OCMA - 2014
  • St, Joseph Health System Values In Action - 2007
  • Physicians of Excellence, OCMA - 2016
  • Physicians of Excellence, OCMA - 2017
  • Physicians of Excellence, OCMA - 2018

Areas of Interest

  • Biliary Disease
  • Gastroesophogeal Reflux