Dr. Kelvin Yeh, MD
Gastroenterologist
614 W Duarte Rd
Arcadia, CA 91007
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49 providers
Availability last updated 04/24/2025
Dr. Kelvin Yeh, MD
Gastroenterologist
614 W Duarte Rd
Arcadia, CA 91007
Advanced Gastroenterology & Liver Institute in Anaheim, Santa Ana, Fullerton, and Huntington Beach, California, provides comprehensive gastroenterology care. People travel from all over to consult with Tahmina Haq, MD, who is well-known for her compassionate care and clinical expertise.
At Advanced Gastroenterology & Liver Institute, Dr. Haq specializes in diagnosing and treating digestive disorders like Crohn’s disease, ulcerative colitis, and hepatitis. She also performs a number of diagnostic procedures, including upper endoscopy, endoscopic ultrasound, and endoscopic retrograde cholangiopancreatography (ERCP).
In addition, people come to Advanced Gastroenterology & Liver Institute for colon cancer screenings and treatment of colon polyps. Dr. Haq has a high adenoma detection rate of 65%, increasing her patients’ protection against colon cancer.
After earning her Doctor of Medicine at Shifa College of Medicine in Rawalpindi, Islamabad, Pakistan, Dr. Haq completed her internal medicine residency at Loma Linda University Medical Center in Loma Linda, California.
She then completed her gastroenterology fellowship at the University of California, San Francisco (UCSF) and her advanced endoscopy fellowship at Harbor-UCLA Medical Center in West Carson, California.
Dr. Haq takes the time to get to know her patients, building trust and long-lasting relationships. When not taking care of her patients, Dr. Haq enjoys traveling and spending time with her family.
Call Advanced Gastroenterology & Liver Institute or use the online booking button to schedule an appointment today.
Tahmina Haq, MD
Gastroenterologist
2282 North State College Blvd
Fullerton, CA 92831
Sunny Lo, DO
Gastroenterologist
300 Huntington Drive
Arcadia, CA 91007
Won Yu, MD
Gastroenterologist
1100 W Stewart Drive
Orange, CA 92868
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Hardeep M. Singh, MD, FACP, AGAF, is board certified in Internal Medicine and Gastroenterology in Irvine, Newport Beach, and Orange, California. He grew up in Orange County, California, and obtained his undergraduate and medical degrees from the University of Southern California.
While completing his internship and residency at Cedars Sinai Medical Center, Dr. Singh received the Leo Rigler Award for his academic achievement, and while completing his fellowship in Gastroenterology, he was named as the Kaiser Permanente Fellow of the Year.
Dr. Singh received additional training in Endoscopic Ultrasound at the University of Montreal. He has published research on ERCP techniques, Inflammatory Bowel Disease, management of liver transplant patients, autoimmune liver disease, and management of Irritable Bowel Syndrome.
Dr. Singh established his practice in 2007 at St. Joseph Hospital in Orange. He has focused on general gastroenterology, with specific interests in management of end-stage liver disease, treatment of Hepatitis B and C, Endoscopic ultrasound, and endoscopic management of gastrointestinal cancers. He is actively involved in the Liver Tumor Program at St. Joseph Hospital and started their Endoscopic Ultrasound Program in 2010.
Dr. Singh has received many accolades, including being recognized as a Physician of Excellence from 2011-2018 by the Orange County Medical Association. He was recently selected as one of the top gastroenterologists in the Western United States by Vitals.com. In 2015, Dr.Singh was recognized by the American Gastroenterological Association as an AGA Fellow, for his superior achievement in clinical practice. Dr. Singh received the Trademark Who's Who recognition as a top doctor in 2016.
In addition to his work at his practice, Dr. Singh considers community service a personal responsibility. Dr. Singh volunteers regularly at La Amistad family health center, providing care to the underserved in Orange, California. For years he has helped organize Access OC at St. Joseph's Hospital, a non-profit organization that helps to provide screening colonoscopies to uninsured patients.
Dr. Singh has been a contributor to multiple articles on gastrointestinal health, featured in Cosmopolitan, Yahoo.com, Good Housekeeping, and Runners World.
Additionally, Dr. Singh is the Medical Director of Endoscopy and the Medical Director for the Endoscopic Ultrasound/Biliary program at St.Joseph Hospital in Orange.
Dr. Singh is proud to provide care to patients in Irvine, Newport Beach, and Orange, and offers flexible scheduling, including Saturday procedures.
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Dr. Hardeep Singh, MD
Gastroenterologist
1010 West La Veta Avenue
Suite 570
Orange, CA 92868
Hardeep M. Singh, MD, FACP, AGAF, is board certified in Internal Medicine and Gastroenterology in Irvine, Newport Beach, and Orange, California. He grew up in Orange County, California, and obtained his undergraduate and medical degrees from the University of Southern California.
While completing his internship and residency at Cedars Sinai Medical Center, Dr. Singh received the Leo Rigler Award for his academic achievement, and while completing his fellowship in Gastroenterology, he was named as the Kaiser Permanente Fellow of the Year.
Dr. Singh received additional training in Endoscopic Ultrasound at the University of Montreal. He has published research on ERCP techniques, Inflammatory Bowel Disease, management of liver transplant patients, autoimmune liver disease, and management of Irritable Bowel Syndrome.
Dr. Singh established his practice in 2007 at St. Joseph Hospital in Orange. He has focused on general gastroenterology, with specific interests in management of end-stage liver disease, treatment of Hepatitis B and C, Endoscopic ultrasound, and endoscopic management of gastrointestinal cancers. He is actively involved in the Liver Tumor Program at St. Joseph Hospital and started their Endoscopic Ultrasound Program in 2010.
Dr. Singh has received many accolades, including being recognized as a Physician of Excellence from 2011-2018 by the Orange County Medical Association. He was recently selected as one of the top gastroenterologists in the Western United States by Vitals.com. In 2015, Dr.Singh was recognized by the American Gastroenterological Association as an AGA Fellow, for his superior achievement in clinical practice. Dr. Singh received the Trademark Who's Who recognition as a top doctor in 2016.
In addition to his work at his practice, Dr. Singh considers community service a personal responsibility. Dr. Singh volunteers regularly at La Amistad family health center, providing care to the underserved in Orange, California. For years he has helped organize Access OC at St. Joseph's Hospital, a non-profit organization that helps to provide screening colonoscopies to uninsured patients.
Dr. Singh has been a contributor to multiple articles on gastrointestinal health, featured in Cosmopolitan, Yahoo.com, Good Housekeeping, and Runners World.
Additionally, Dr. Singh is the Medical Director of Endoscopy and the Medical Director for the Endoscopic Ultrasound/Biliary program at St.Joseph Hospital in Orange.
Dr. Singh is proud to provide care to patients in Irvine, Newport Beach, and Orange, and offers flexible scheduling, including Saturday procedures.
Dr. Hardeep Singh, MD
Gastroenterologist
361 Hospital Rd
#227
Newport Beach, CA 92663
Sunny Lo, DO
Gastroenterologist
51 Fifth Ave Unit 101
Arcadia, CA 91006
Dr. Kelvin Yeh, MD
Gastroenterologist
51 Fifth Ave Unit 101
Arcadia, CA 91006
Advanced Gastroenterology & Liver Institute in Anaheim, Santa Ana, Fullerton, and Huntington Beach, California, provides comprehensive gastroenterology care. People travel from all over to consult with Tahmina Haq, MD, who is well-known for her compassionate care and clinical expertise.
At Advanced Gastroenterology & Liver Institute, Dr. Haq specializes in diagnosing and treating digestive disorders like Crohn’s disease, ulcerative colitis, and hepatitis. She also performs a number of diagnostic procedures, including upper endoscopy, endoscopic ultrasound, and endoscopic retrograde cholangiopancreatography (ERCP).
In addition, people come to Advanced Gastroenterology & Liver Institute for colon cancer screenings and treatment of colon polyps. Dr. Haq has a high adenoma detection rate of 65%, increasing her patients’ protection against colon cancer.
After earning her Doctor of Medicine at Shifa College of Medicine in Rawalpindi, Islamabad, Pakistan, Dr. Haq completed her internal medicine residency at Loma Linda University Medical Center in Loma Linda, California.
She then completed her gastroenterology fellowship at the University of California, San Francisco (UCSF) and her advanced endoscopy fellowship at Harbor-UCLA Medical Center in West Carson, California.
Dr. Haq takes the time to get to know her patients, building trust and long-lasting relationships. When not taking care of her patients, Dr. Haq enjoys traveling and spending time with her family.
Call Advanced Gastroenterology & Liver Institute or use the online booking button to schedule an appointment today.
Tahmina Haq, MD
Gastroenterologist
801 N. Tustin Ave.
Ste 700
Santa Ana, CA 92705