Our Services

Gastroenterology

St. Jude Heritage Medical Group provides expert diagnosis and treatment of all types of gastrointestinal diseases and digestive disorders, from inflammatory bowel disease to GERD. As one of the largest and most respected GI groups in Southern California, we offer highly skilled physicians, the most advanced diagnostic and treatment options, and a patient-centered approach.

Our commitment to medical excellence and patient safety is evident in our exceptional outcomes, including complication rates that are dramatically lower than the national average. And our exclusive partnership with St. Jude Medical Center and its Knott Family Endoscopy Center allows us to offer today’s newest diagnostic and treatment technology. Located next door to our offices, the Knott Family Endoscopy Center is designed to provide patients with unmatched care and comfort.

Meet Our Doctors

Martin Carr, MD (714) 446-5831
Gastroenterology (Board Certified)
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Office :
1847 Sunnycrest Dr.
Fullerton, CA 92835
Hyder Z. Jamal, MD (714) 577-6624
Gastroenterology (Board Certified)
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Office :
4300 Rose Dr.
Suite G
Yorba Linda, CA 92886
Sajen J. Mathews, MD (714) 446-5831
Gastroenterology (Board Certified)
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Office 1:
1847 Sunnycrest Dr.
Fullerton, CA 92835

Office 2:
1401 Avocado Ave.
Suite 709
,
Y.S. Frank Miao, MD (714) 626-8650
Gastroenterology (Board Certified)
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Office 1:
2141 N. Harbor Blvd.
Suite 2500
Fullerton, CA 92835

Office 2:
665 Camino de los Mares
Suite 102
,
Scott P. Sainburg, MD (714) 446-5831
Gastroenterology (Board Certified)
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Office :
1847 Sunnycrest Dr.
Fullerton, CA 92835
Eugene Yoon, MD (714) 446-5831
Gastroenterology (Board Certified)
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Office :
1847 Sunnycrest Dr.
Fullerton, CA 92835