Sorbarikor Piawah, MD

Sorbarikor Piawah, MD, MPH
+1 415 353-9888

Dr. Sorbarikor Piawah is a gastrointestinal oncologist with a particular interest in colorectal cancer. She also treats patients with sarcoma, a group of rare cancers that affect the bones and connective tissues.

Piawah has a background in public health research, particularly in health care disparities among racial and ethnic minorities and low-income patients with cancer. Her current research is focused on understanding the roles that the gut microbiome (the population of microorganisms living in the intestinal tract), diet and lifestyle play in disparities among those with colorectal cancer and on designing therapies that target these factors.

Piawah earned her medical degree at Harvard Medical School and a Master of Public Health degree at the Harvard T.H. Chan School of Public Health. She completed a residency in internal medicine at Brigham and Women's Hospital, one of Harvard's teaching hospitals. She completed a fellowship in hematology and oncology at UCSF.

Piawah belongs to the American Society of Clinical Oncology. She has received awards for her research from the UCSF Osher Center for Integrative Medicine, the UCSF Center for Aging in Diverse Communities, and the V Foundation for Cancer Research.


Challenges and solutions to recruiting diverse populations to oncology clinical trials: A mixed-methods study of clinical research coordinators.

Journal of Clinical Oncology

Ana I. Velazquez Manana, Evelin Trejo, Sorbarikor Piawah, Celia Kaplan

Evaluation of Culture Conducive to Academic Success by Gender at a Comprehensive Cancer Center.

The oncologist

Keenan BP, Sibley A, Zhang L, Westring AF, Velazquez AI, Bank EM, Bergsland EK, Boreta L, Conroy P, Daras M, Hermiston M, Hsu G, Paris PL, Piawah S, Sinha S, Sosa JA, Tsang M, Venook AP, Wong M, Yom SS, Van Loon K

Associations between the Gut Microbiota, Race, and Ethnicity of Patients with Colorectal Cancer: A Pilot and Feasibility Study.


Piawah S, Kyaw TS, Trepka K, Stewart AL, Mora RV, Stanfield D, Levine K, Van Blarigan EL, Venook A, Turnbaugh PJ, Nguyen T, Atreya CE

Variety of fruit and vegetables and alcohol intake are associated with gut microbial species and gene abundance in colorectal cancer survivors.

The American journal of clinical nutrition

Kyaw TS, Upadhyay V, Tolstykh I, Van Loon K, Laffan A, Stanfield D, Gempis D, Kenfield SA, Chan JM, Piawah S, Atreya CE, Ng K, Venook A, Kidder W, Turnbaugh PJ, Van Blarigan EL

Abstract B133: Understanding the barriers to and attitudes toward integrative oncology for African Americans with cancer.

Cancer Epidemiology Biomarkers & Prevention

Chanda L. Williams, Sorbarikor Piawah, Chloe Atreya, Dalila Stanfield, Kendall Levine, Adrienne Yang

Optimizing intervention tools to improve nutrition and physical activity for colorectal cancer survivors (Tools To Be Fit): Study protocol of a randomized factorial experiment.

Contemporary clinical trials

Kenfield SA, Philip EJ, Phillips SM, Meyerhardt JA, Chan JM, Atreya CE, Kim MO, Harris Q, Steiding P, Macaire G, McCullough ML, Piawah S, Johnson WY, Kurttila FA, Lewis WL, Pesmen C, Watson Y, Van Blarigan EL

Association between adherence to the American Cancer Society Nutrition and Physical Activity Guidelines and stool frequency among colon cancer survivors: a cohort study.

Journal of cancer survivorship : research and practice

Greenberg AL, Tolstykh IV, Van Loon K, Laffan A, Stanfield D, Steiding P, Kenfield SA, Chan JM, Atreya CE, Piawah S, Kidder W, Venook AP, Van Blarigan EL, Varma MG

Phase II study of pembrolizumab plus capecitabine and bevacizumab in microsatellite stable (MSS) metastatic colorectal cancer (mCRC).

Journal of Clinical Oncology

Andrea Grace Bocobo, Renee Wang, Spencer Behr, Julia C. Carnevale, Pelin Cinar, Eric Andrew Collisson, Lawrence Fong, Bridget P Keenan, Wesley Allen Kidder, Andrew H. Ko, Kanti Pallav Kolli, Megan Kennedy, Angela Laffan, Sorbarikor Piawah, Marin Pollak, Gabriel Schwartz, Julia Whitman, Li Zhang, Katherine Van Loon, Chloe Evelyn Atreya

The Gut Microbiome in Colorectal Cancer.

Hematology/oncology clinics of North America

Piawah S, Walker EJ, Van Blarigan EL, Atreya CE

Survival in Young-Onset Metastatic Colorectal Cancer: Findings from Cancer and Leukemia Group B (Alliance)/SWOG 80405.

Journal of the National Cancer Institute

Lipsyc-Sharf M, Zhang S, Ou FS, Ma C, McCleary NJ, Niedzwiecki D, Chang IW, Lenz HJ, Blanke CD, Piawah S, Van Loon K, Bainter TM, Venook AP, Mayer RJ, Fuchs CS, Innocenti F, Nixon AB, Goldberg R, O'Reilly EM, Meyerhardt JA, Ng K

Optimizing pancreatic cancer management with next generation imaging and liquid biopsy (CHANGE-PDAC).

Journal of Clinical Oncology

Erica S Tsang, Eric Andrew Collisson, Zhen J. Wang, Sorbarikor Piawah, Taylor Sanchez, Margaret A. Tempero, Andrew H. Ko

Feasibility and Acceptability of a Physical Activity Tracker and Text Messages to Promote Physical Activity During Chemotherapy for Colorectal Cancer: Pilot Randomized Controlled Trial (Smart Pace II).

JMIR cancer

Van Blarigan EL, Dhruva A, Atreya CE, Kenfield SA, Chan JM, Milloy A, Kim I, Steiding P, Laffan A, Zhang L, Piawah S, Fukuoka Y, Miaskowski C, Hecht FM, Kim MO, Venook AP, Van Loon K

Resident-Reported Impact of a Novel Oncology Curriculum for Internal Medicine Residents.

Journal of cancer education : the official journal of the American Association for Cancer Education

Tsai FD, Guercio B, Stuver S, Stern R, Peluso MJ, Winkler M, Piawah S, Vallurupalli M, Luskin MR, Braun D, Parent A, Glotzbecker B, Kilbridge KL

Investigating tumor molecular profiling as a possible contributor to racial/ethnic disparities in pancreatic cancer.

Journal of Clinical Oncology

Evan Justin Walker, Sorbarikor Piawah, Ann Griffin, Julia C. Carnevale, Pelin Cinar, Eric Andrew Collisson, Margaret A. Tempero, Andrew H. Ko

Cancer health disparities in racial/ethnic minorities in the United States.

British journal of cancer

Zavala VA, Bracci PM, Carethers JM, Carvajal-Carmona L, Coggins NB, Cruz-Correa MR, Davis M, de Smith AJ, Dutil J, Figueiredo JC, Fox R, Graves KD, Gomez SL, Llera A, Neuhausen SL, Newman L, Nguyen T, Palmer JR, Palmer NR, Pérez-Stable EJ, Piawah S, Rodriquez EJ, Sanabria-Salas MC, Schmit SL, Serrano-Gomez SJ, Stern MC, Weitzel J, Yang JJ, Zabaleta J, Ziv E, Fejerman L

Rural and urban disparities based on zip code of residence: Analyses of 834 and 2,159 patients in NCCTG N9741 and CALGB 80405 (Alliance) trials respectively.

Journal of Clinical Oncology

Midhun Malla, Lucas J. Huebner, Sorbarikor Piawah, Heinz-Josef Lenz, Charles David Blanke, Jeffrey A. Meyerhardt, Eileen Mary O'Reilly, Qian Shi, Alan P. Venook, Richard M. Goldberg

A case report of vanishing bile duct syndrome after exposure to pexidartinib (PLX3397) and paclitaxel.

NPJ breast cancer

Piawah S, Hyland C, Umetsu SE, Esserman LJ, Rugo HS, Chien AJ

What is the Role of the Arts in Medical Education and Patient Care? A Survey-based Qualitative Study.

The Journal of medical humanities

Pories SE, Piawah S, Abel GA, Mullangi S, Doyle J, Katz JT

Tu1699 Obesity Increases the Risk of Gastrointestinal Bleeding in Men.


Lisa L. Strate, Amit D. Joshi, Prashant Singh, Sorbarikor Piawah, Matthew R. Boylan, Andrew T. Chan

783 Menopausal Hormone Therapy Is Associated With Increased Risk of Lower Gastrointestinal Bleeding.


Matthew R. Boylan, Prashant Singh, Hamed Khalili, Sorbarikor Piawah, Kathleen O. Stewart, Lisa L. Strate, Andrew T. Chan

786 Alcohol Consumption Increases the Risk of Gastrointestinal Bleeding in Men.


Prashant Singh, Elaine Coughlan-Gifford, Matthew R. Boylan, Sorbarikor Piawah, Kathleen O. Stewart, Lisa L. Strate, Andrew T. Chan