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Physician Profile

Jenny Daci Yang, MD

Serving Patients in
San Jose & Los Gatos
Make an Appointment
(408) 471-2222

Recent News

inSite Digestive Health Care is proud to announce its newest location in Lancaster, CA with Dr. Jatinder Pruthi!

About Jenny Daci Yang, MD

Dr. Jenny Daci Yang (also known as Kuang Daci) was born in China and grew up in Brazil. She received her medical degree from the University of Sao Paulo in Brazil. She completed her Internal Medicine residency at Baylor College of Medicine in Houston, Texas; as well as her Gastroenterology fellowship. She moved to the Bay Area in 2013 and has since been practicing general gastroenterology and hepatology in San Jose.

She has a special interest in chronic liver disease, inflammatory bowel disease, and colon cancer screening; having co-authored a number of publications on factors affecting timeliness of colon cancer diagnosis and treatment of viral hepatitis B and C.

Dr. Yang is fluent in English, Chinese (Mandarin and Taishanese), and Portuguese. She can also speak intermediate-level Spanish and Cantonese.

Treatment Philosophy

I strive to provide compassionate, high quality and evidence-based care to every patient while remaining conscientious of each patient’s individual preferences and needs.

Specialties and Services

Colonoscopy and Colon Cancer Screening

EGD (Esophagogastroduodenoscopy)


Small Bowel Capsule Endoscopy

Management of liver disease (viral hepatitis, fatty liver disease, cirrhosis)

Inflammatory Bowel Disease

Professional Affiliations

American Gastroenterology Association (AGA)

American Society of Gastrointestinal Endoscopy (ASGE)

American College of Gastroenterology (ACG)

American Association for the Study of Liver Diseases (AASLD)

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Professional Publications

Wong RJ, Nguyen MT, Trinh HN, Huynh A, Ly MT, Nguyen HA, Nguyen KK, Yang J, Garcia RT, Levitt B, da Silveira E, Gish RG. “Community-based real-world treatment outcomes of sofosbuvir/ledipasvir in Asians with chronic hepatitis C virus genotype 6 in the United States” J Viral Hepat. 2017 Jan;24(1):17-21.

Singh H, Khan R, Giardina TD, Paul LW, Daci K, Gould M, El-Serag H. “Postreferral colonoscopy delays in diagnosis of colorectal cancer: a mixed-methods analysis”. Qual Manag Health Care. 2012 Oct-Dec;21(4):252-61.

Singh H, Peterson LA, Daci K, Collins C, Khan M, El-Serag HB. “Reducing referral delays in colorectal cancer diagnosis: is it about how you ask?”. Qual Saf Health Care, 2010 Oct;19(5):e27.

White DL, Savas LS, Daci K, El-Serag R, Graham DP, Fitzgerald SJ, Smith SL, Tan G, El-Serag HB. “Trauma history and risk of irritable bowel syndrome in women veterans”. Aliment Pharmacol Ther. 2010 Aug;32(4):551-61.

Singh H, Daci K, Petersen LA, Collins C, Petersen NJ, Shethia A, El-Serag HB. “Missed opportunities to initiate endoscopic evaluation for colorectal cancer diagnosis”. Am J Gastroenterol. 2009 Oct;104(10): 2543-2554.

Savas LS, White DL, Wieman M, Daci K, Fitzgerald S, Laday SS, Tan G, Grham DP, Cully JA, El-Serag HB. “Irritable bowel syndrome and dyspepsia among women veterans: prevalence and association with psychological distress”, Aliment Pharmacol Ther. 2008 Sep 10.

Cristante AF, Barros Filho TE, Oliveira RP, Marcon RM, Rocha ID, Hanania FR, Daci K. “Antioxidative therapy in contusion spinal cord injury”, Spinal Cord. 2009 Jun;47(6):458-63.

Andrade MS, Hanania FR, Daci K, Leme RJ, Chadi G. “Contuse lesion of the rat spinal cord of moderate intensity leads to a higher time-dependent secondary neurodegeneration than severe one. An open-window for experimental neuroprotective interventions”. Tissue Cell. 2008 Apr;40(2):143-56.

Tebet MA, Barros Filho TEP, Machado IR, Carvalho MOP, Hanania FR, Daci K. “Effect of methylprednisolone in medullar injury in rats: a functional and histological analysis”, Acta Ortopedica 2003; 11(2): 80-86.

Mansur AP, Mattar, APL, Tsubo, CE, Simão, DT, Yoshi, FR, Daci K. “Prescription and adherence to statins of patients with coronary artery disease and hypercholesterolemia”, Arquivos Brasileiros de Cardiologia 2001; 76(2):111-118.

Office Locations

Los Gatos Location
14901 National Ave., Suite 101
Los Gatos, CA 95032
Phone: (408) 471-2222
Fax: (408) 471-2200

San Jose Location
200 Jose Figueres Ave, Suite 170
San Jose, CA 95116
Phone: (408) 471-2222
Fax: (408) 471-2200