David M Richards, MD
Department of Gastroenterology Hepatology and Nutrition, Division of Internal Medicine
Present Title & Affiliation
Primary Appointment
Associate Professor, Department of Gastroenterology, Hepatology & Nutrition, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
Education & Training
Postgraduate Training
| 2011-2012 | Clinical Fellowship, Chief Clinical Fellow – Gastroenterology, University of Texas Health Science Center at Houston, Houston, Texas |
| 2009-2012 | Clinical Fellowship, Gastroenterology, University of Texas Health Science Center at Houston and, Houston, Texas |
| 2007-2009 | Clinical Residency, Internal Medicine, University of Texas Health Science Center at Houston, Houston, Texas |
| 2006-2007 | Clinical Internship, Internal Medicine, The University of Texas Health Science Center at Houston, Houston, Texas |
Licenses & Certifications
| 2021 | Florida Telemedicine License |
| 2016 | Michigan Board of Medicine |
| 2012 | American Board of Internal Medicine |
| 2009 | American Board of Internal Medicine |
| 2009 | Texas Medical Board |
| null | Tennessee Board of Medical Examiners |
| null | Mississippi State Board of Medical Licensure |
| null | Louisiana State Board of Medical Examiners |
| null | Alabama Board of Medical Examiners |
| null | Washington State Department of Health |
| null | Oklahoma State Board of Medical Licensure |
| null | Basic Life Support |
| null | Arizona Board of Medical Examiners |
| null | Advanced Cardiac Life Support |
| null | Georgia Composite Medical Board |
Experience & Service
Administrative Appointments/Responsibilities
Associate Medical Director, Department of Gastroenterology, Hepat,& Nutr, The University of Texas MD Anderson Cancer Center, Houston, TX, 2022 - 2025
Intramural Institutional Committee Activities
Member, Ambulatory Informatics Committee, The University of Texas MD Anderson Cancer Center, 2024 - Present
Extramural Institutional Committee Activities
Co-Chair, Executive Billing and Compliance Committee, The University of Texas MD Anderson Cancer Center, 2022 - Present
Physician Lead, EM Documentation and Coding Subcommittee, The University of Texas MD Anderson Cancer Center, 2020 - Present
Physician Lead, AMA Ambulatory/Outpatient Evaluation & Management Changes Subcommittee, The University of Texas MD Anderson Cancer Center, 2020 - 2021
member, Executive Billing and Compliance Committee, The University of Texas MD Anderson Cancer Center, 2020 - 2022
Member, Perioperative Informatics Committee, The University of Texas MD Anderson Cancer Center, 2020 - Present
Consultant, Ambulatory Informatics Committee, The University of Texas MD Anderson Cancer Center, 2020 - 2022
POC (Point of Contact), Virtual Care for GHN to the COVID Virtual Care Task Force, The University of Texas MD Anderson Cancer Center, 2020 - 2021
Officer, Electronic Health Records (EHR) Committee, The University of Texas MD Anderson Cancer Center, 2019 - 2022
Member, DOIM IOTOX Working Group, The University of Texas MD Anderson Cancer Center, 2018 - 2022
Honors & Awards
| 2025 - Present | Centennial Session, 2025 ASHA Convention, ASHA |
| 2019 | 2019 Top Performer - MD Anderson CAHPS Top 1% Nationally, MD Anderson |
| 2018 - 2019 | Outstanding Reviewer 2019, GIE (Gastrointestinal Endoscopy) |
| 2018 | 2018 Top Performer - MD Anderson CAHPS Top 1% Nationally, MD Anderson |
| 2003 | Alumni Research Fellowship, Wayne State University School of Medicine |
| 1996 | Eagle Scout, Boy Scouts of America |
Professional Memberships
Selected Presentations & Talks
Local Presentations
- 2024. pH and Motility Studies. Invited. Great Houston SGNA. Houston, Texas, US.
- 2024. GI Motility. Invited. Physician Assistant Continuing Education (P.A.C.E.) Lecture series. Houston, Texas, US.
- 2020. Reviewing The Workup and Management of Dysphagia. Conference. Reviewing The Workup and Management of Dysphagia. Houston, TX, US.
- 2019. The Medical Center Motility Club Presents. Conference. The Medical Center Motility Club Presents. Houston, US.
Regional Presentations
- 2016. GI Bleeding in the Cardiac Patient. Conference. GI Bleeding in the Cardiac Patient. Houston, TX, US.
- 2016. Exploring Frontiers in the Management of Digestive and Liver Disorders. Conference. Exploring Frontiers in the Management of Digestive and Liver Disorders. Houston, TX, US.
National Presentations
- 2025. Beyond the Swallow: Toward Whole Person, Multi-Toxicity Care of Late Radiation Associated Dysphagia. Panelist. 2025 American Speech-Language-Hearing Association (ASHA) Annual Meeting. Washington, D.C, District of Columbia, US.
- 2024. Head & Neck Cancer Collaborative: They Can’t Aspirate: Dysphagia after Total Laryngectomy. Conference. MD Anderson Head & Neck Cancer Collaborative. Houston, TX, US.
- 2023. Beyond the Esophageal Sweep: Multidisciplinary Management of Dysphagia in Esophageal Cancer Patients. Invited. American Speech-Language-Hearing Association Annual Meeting 2023. Boston, MA, US.
- 2023. Meeting in the Middle: Can we improve functional gains after rendezvous dilation by implementing interdisciplinary swallowing therapy/endoscopy pathways?. Conference. Meeting in the Middle: Can we improve functional gains after rendezvous dilation by implementing interdisciplinary swallowing therapy/endoscopy pathways?. San Francisco, CA, US.
- 2022. GI Troubles, Diarrhea and Diet. Conference. GI Troubles, Diarrhea and Diet, US.
- 2022. Advances and Trends in Oncology Nutrition. Conference. Advances and Trends in Oncology Nutrition. Rosemont, IL, US.
- 2021. Efficacy and safety of vedolizumab and infliximab treatment for immune-mediated diarrhea and colitis in cancer patients: a multi-center study, Oral lecture. Conference. Efficacy and safety of vedolizumab and infliximab treatment for immune-mediated diarrhea and colitis in cancer patients: a multi-center study, Oral lecture, US.
- 2021. Clinical characteristics and outcomes of patients with positive celiac serology and cancer therapy exposure. Poster. Conference. Clinical characteristics and outcomes of patients with positive celiac serology and cancer therapy exposure. Poster, US.
- 2021. Interdisciplinary Management of Complete Pharyngeal Stricture. Conference. Atos Medical, US.
- 2019. Mastocytosis Complicated by Upper and Lower GI Bleeding. Conference. Mastocytosis Complicated by Upper and Lower GI Bleeding. San Antonio, TX, US.
International Presentations
- 2024. What is the Role of the UES in LPR?. Invited. 16th World Conference "Esophagus 2024". Strasbourg, FR.
- 2024. How (and Why) We are Adding Pharyngeal Manometry to Our Practice. Invited. 16th World Conference "Esophagus 2024". Strasbourg, FR.
Grant & Contract Support
| Date: | 2023 - 2024 |
| Title: | Upper Esophageal Sphincter (UES) Dysfunction in a Cancer Population |
| Funding Source: | The University of Texas at Austin |
| Role: | Co-PI |
Selected Publications
Peer-Reviewed Articles
- Saleem A, Shaikh AS, Overman M, Naik SA, Foo WC, Vilar E, Triadafilopoulos G, Raju GS, Richards DM. Vanished! Auto-amputated Ileal Polyp in a Patient with Lynch Syndrome. Dig Dis Sci 70(7):2292-2296, 2025. e-Pub 2025. PMID: 40266505.
- Abu-Sbeih H, Tang T, Ali FS, Ma W, Shatila M, Luo W, Tan D, Tang C, Richards DM, Ge PS, Thomas AS, Wang Y. Clinical Features and Management of Acute and Chronic Radiation-Induced Colitis and Proctopathy. Cancers (Basel) 15(12), 2023. e-Pub 2023. PMID: 37370770.
- Nehme F, Armstrong AE, Taherian M, Lynch PM, Richards DM, Casanova DN, Ge PS. Endoscopic submucosal dissection using an integrated needle-type knife and insulated-tip knife in a single device. VideoGIE 8(3):96-99, 2023. e-Pub 2023. PMID: 36935802.
- Dutra BES, Wei D, Tan D, Alasadi M, Zhang HC, Thomas A, Thomas AS, Richards DM, Wang Y. Clinical Characteristics and Outcomes of Patients with Positive Celiac Serology and Cancer Therapy Exposure. J Cancer 13(3):815-822, 2022. e-Pub 2022. PMID: 35154450.
- Zou F, Faleck D, Thomas A, Harris J, Satish D, Wang X, Charabaty A, Ernstoff MS, Glitza Oliva IC, Hanauer S, McQuade J, Obeid M, Shah A, Richards DM, Sharon E, Wolchok J, Thompson J, Wang Y. Efficacy and safety of vedolizumab and infliximab treatment for immune-mediated diarrhea and colitis in patients with cancer: a two-center observational study. J Immunother Cancer 9(11), 2021. e-Pub 2021. PMID: 34789551.
- Khurana S, Abu-Sbeih H, Ma W, Qiao W, Foo WC, Richards DM, Thomas AS, Khan A, Zhang HC, Wang Y. Clinical Characteristics and Outcomes of Eosinophilic Colitis in Patients With Cancer. Am J Clin Oncol 44(8):395-401, 2021. e-Pub 2021. PMID: 34091476.
- Panneerselvam K, Amin RN, Wei D, Tan D, Lum PJ, Zhang HC, Richards DM, Altan M, Grivas P, Thompson JA, Thomas AS, Wang Y. Clinicopathologic Features, Treatment Response, and Outcomes of Immune Checkpoint Inhibitor-Related Esophagitis. J Natl Compr Canc Netw 19(8):1-9, 2021. e-Pub 2021. PMID: 34102607.
- Tang T, Abu-Sbeih H, Ma W, Lu Y, Luo W, Foo WC, Richards DM, Halperin DM, Ge PS, Wang Y. Gastrointestinal Injury Related to Antiangiogenesis Cancer Therapy. Clin Colorectal Cancer 19(3):e117-e123, 2020. e-Pub 2020. PMID: 32284253.
- Abu-Sbeih H, Tang T, Ali FS, Luo W, Neelapu SS, Westin JR, Okhuysen PC, Foo WC, Curry JL, Richards DM, Ge PS, Wang Y. Gastrointestinal Adverse Events Observed After Chimeric Antigen Receptor T-Cell Therapy. Am J Clin Oncol 42(10):789-796, 2019. e-Pub 2019. PMID: 31478934.
- Tang T, Abu-Sbeih H, Luo W, Lum P, Qiao W, Bresalier RS, Richards DM, Wang Y. Upper gastrointestinal symptoms and associated endoscopic and histological features in patients receiving immune checkpoint inhibitors. Scand J Gastroenterol 54(5):538-545, 2019. e-Pub 2019. PMID: 31079556.
- Choi K, Abu-Sbeih H, Samdani R, Nogueras Gonzalez G, Raju GS, Richards DM, Gao J, Subudhi S, Stroehlein J, Wang Y. Can Immune Checkpoint Inhibitors Induce Microscopic Colitis or a Brand New Entity?. Inflamm Bowel Dis 25(2):385-393, 2019. e-Pub 2019. PMID: 30169584.
- Abu-Sbeih H, Ali FS, Alasadi D, Jennings J, Luo W, Gong Z, Richards DM, Charabaty A, Wang Y. Outcomes of vedolizumab therapy in patients with immune checkpoint inhibitor-induced colitis: a multi-center study. J Immunother Cancer 6(1):142, 2018. e-Pub 2018. PMID: 30518410.
- Wang Y, Abu-Sbeih H, Mao E, Ali N, Qiao W, Trinh VA, Zobniw C, Johnson DH, Samdani R, Lum P, Shuttlesworth G, Blechacz B, Bresalier R, Miller E, Thirumurthi S, Richards D, Raju G, Stroehlein J, Diab A. Endoscopic and Histologic Features of Immune Checkpoint Inhibitor-Related Colitis. Inflamm Bowel Dis 24(8):1695-1705, 2018. e-Pub 2018. PMID: 29718308.
- Wuschek A, Iqbal S, Estep J, Quigley E, Richards D. Left ventricular assist device hemolysis leading to dysphagia. World J Gastroenterol 21(18):5735-8, 2015. e-Pub 2015. PMID: 25987800.
- Richards DM, Tanikella R, Arora G, Guha S, Dekovich AA. Percutaneous endoscopic gastrostomy in cancer patients: predictors of 30-day complications, 30-day mortality, and overall mortality. Dig Dis Sci 58(3):768-76, 2013. e-Pub 2013. PMID: 23007733.
Review Articles
- Koutroumpakis, F, Richards, DM. What's with the Lump in the Throat? Globus, Dysphagia, and the Role of the Upper Esophageal Sphincter in Laryngopharyngeal Reflux Disease. Otolaryngologic Clinics of North America 58(3):465-474, 2025. e-Pub 2025. PMID: 40133104.
- Samuels TL, Aoun J, Husain I, Figueredo E, Richards D, Johnston N. Advances in laryngopharyngeal reflux. Ann N Y Acad Sci 1541(1):53-62, 2024. e-Pub 2024. PMID: 39420555.
- Guha A, Eshelbrenner CL, Richards DM, Monsour HP. Gastrointestinal bleeding after continuous-flow left ventricular device implantation: review of pathophysiology and management. Methodist Debakey Cardiovasc J 11(1):24-7, 2015. e-Pub 2015. PMID: 25793026.
- Ghouri YA, Richards DM, Rahimi EF, Krill JT, Jelinek KA, DuPont AW. Systematic review of randomized controlled trials of probiotics, prebiotics, and synbiotics in inflammatory bowel disease. Clin Exp Gastroenterol 7:473-87, 2014. e-Pub 2014. PMID: 25525379.
- Richards D, Davis D, Yan P, Guha S. Unusual case of small cell gastric carcinoma: case report and literature review. Dig Dis Sci 56(4):951-7, 2011. e-Pub 2011. PMID: 20848201.
Abstracts
- Ahmed E, Sidra N, George T, Lavanya V, David R, Mehnaz S. Ninety-Six-Hour, Ambulatory pH Monitoring Is Not Superior to 48-Hour pH Monitoring in Establishing Pathologic Esophageal Acid Exposure in Patients With GERD Symptoms. ACG 2025, 2025. e-Pub 2025.
- Abdelrahman Yousef, Mahmoud Yousef, Michael J. Antony, JohnPaul Shen, Richards DM. Evaluating the Safety of Endoscopic Procedures in Patients Undergoing VEGF Therapy: Insights from a Comprehensive Cancer Center. 2025 Digestive Disease Week (DDW), 2025. e-Pub 2025.
- Richards DM, Naz S, Dai J, Triadafilopoulos G, Fuller CD, Barbon C, Shafi MA, Jones C, Hutcheson K. FLIP Distensibility Index Correlates With Radiation Dose in Cancer Patients With Radiation Exposure and Dysphagia, 2024. e-Pub 2024.
- Sidra N, Richards David M, Mazen A. Temporal Trends and Racial Disparities in Inflammatory Bowel Disease-Related Mortality in the United States and Texas: 1999-2020 CDC Wonder Insights. ACG 2024, 2024. e-Pub 2024.
- Richards David M, Sidra N, Jianliang D, George T, Fuller Clifton D, Carly B, Shafi Mehnaz A, Corinne J, Katherine H. FLIP Distensibility Index Correlates With Radiation Dose in Cancer Patients With Radiation Exposure and Dysphagia. ACG 2024, 2024. e-Pub 2024.
- Yusuf I, Ejaz S, Richards DM, Raza Bokhari LV, Rytting C, Shafi M. 1267 CARDIAC SAFETY AND CLINICAL EFFICACY OF DOMPERIDONE USE IN GASTROPARESIS USING AN FDA APPROVED IND PROTOCOL : A PROSPECTIVE 11-YEARS STUDY. Gastroenterology 166(5, Supplement):S-300, 2024. e-Pub 2024.
- Dutra BE, Wei D, Tan D, Thomas AS, Richards DM, Wang Y. Fr236 CLINICAL CHARACTERISTICS AND OUTCOMES OF PATIENTS WITH POSITIVE CELIAC SEROLOGY AND CANCER THERAPY EXPOSURE 160(6):S-272 - S-273, 2021. e-Pub 2021.
- Zou F, Faleck DM, Thomas AS, Harris JP, Satish D, Wang X, Charabaty A, Ernstoff MS, Glitza Oliva IC, Hanauer SB, McQuade J, Obeid M, Shah AY, Richards DM, Sharon E, Wolchok J, Thompson JA, Wang Y. 23 EFFICACY AND SAFETY OF VEDOLIZUMAB AND INFLIXIMAB TREATMENT FOR IMMUNE-MEDIATED DIARRHEA AND COLITIS IN CANCER PATIENTS: A MULTI-CENTER STUDY 160(6):S-4 - S-5, 2021. e-Pub 2021.
- Dutra B, Wei D, Tan D, Thomas A, Richards D, Wang Y. Clinical characteristics and outcomes of patients with positive celiac serology and cancer therapy exposure. DDW, 2021. e-Pub 2021.
- Zou F, Faleck D, Thomas A, Harris J, Satish D, Wang X, Charabaty A, Ernstoff M, Oliva IG, Hanauer S, McQuade J, Obeid M, Shah A, Richards D, Sharon E, Wolchok J, Thompson J, Wang Y. Efficacy and safety of vedolizumab and infliximab treatment for immune-mediated diarrhea and colitis in cancer patients: a multi-center study. DDW, 2021. e-Pub 2021.
- Fangwen Z, Shah Amishi Y, Glitza Isabella C, David R, Shirwaikar TA, Yinghong W. Comparative Study of Vedolizumab and Infliximab Treatment in Patients With Immune-Mediated Diarrhea and Colitis. ACG 2020, 2020. e-Pub 2020.
- Kavea P, Rajan A, Dongguang W, Dongfeng T, Phillip L, Chi ZH, David R, Mehmet A, Petros G, John T, Shirwaikar TA, Yinghong W. Clinicopathologic Features, Treatment Response, and Outcomes of Immune Checkpoint Inhibitor-Related Esophagitis. ACG 2020, 2020. e-Pub 2020.
- Khamis A, Richards DM, Chen E. Mastocytosis Complicated by Upper and Lower GI Bleeding. ACG, 2019. e-Pub 2019.
- Tang T, Abu-Sbeih H, Richards DM, Wang Y. Tu1695-Anti-Angiogenesis Cancer Therapy-Related Gastrointestinal Injury Can Lead to Serious Adverse Consequences in a Small Proportion of Patients 156(6):S-1088-, 2019.
- Abu-Sbeih H, Tang T, Richards DM, Okhuysen P, Wang Y. 1090 – Gastroinestinal Symptoms Observed After Chimeric Antigen Receptor T-Cell Therapy 156(6):S-231 - S-232, 2019. e-Pub 2019.
- Kati C, Hamzah A, Rashmi S, Gottumukkala R, David R, John S, Yinghong W. Features of Microscopic Colitis in Cancer Patients Receiving Immune Checkpoint Inhibitors: 123. ACG 2018, 2018. e-Pub 2018.
- Tenglong T, Hamzah A, Wenyi L, Rashmi S, Wei Q, Robert B, David R, Yinghong W. The Constellation of Upper Gastrointestinal Symptoms and Associated Endoscopic and Histologic Features in Patients Receiving Immune Checkpoint Inhibitors: 1231. ACG 2018, 2018. e-Pub 2018.
- Hamzah A, Ali Faisal S, Dana A, Joseph J, Wenyi L, Zimu G, David R, Aline C, Yinghong W. Outcomes of Vedolizumab Treatment in Patients With Immune Checkpoint Inhibitor-Induced Diarrhea and Colitis: A Multi-Center Study: 110, 2018. e-Pub 2018.
- Wang Y, Abu-Sbeih H, Mao E, Ali N, Ali F, Qiao W, Bresalier RS, Davila ML, Diab A, Lum P, Raju GS, Shuttlesworth GA, Richards DM, Stroehlein JR. Tu1724 - Outcomes of Immunotherapy-Induced Diarrhea and Colitis: A Cancer Center Experience 154(6):S-1001, 2018. e-Pub 2018.
- Judith A, Shivang M, David R, Machicado Jorge D, Sachin B, Nirav T, David W, Andrew D. An Unusual Case of Shortness of Breath: 668. ACG 2012, 2012. e-Pub 2012.
- Richards D, Gaurav A, Tanikella R, Guha S, Dekovich A. Predictors of Major Complications Within 30 Days of PEG Placement in Cancer Patients. ACG, 2011. e-Pub 2011.
- Reddy S, Mank G, Richards D, DuPont A, Fallon MB. Gastric Variceal Hemorrhage: Successful Treatment with Combination Endoscopic Cyanoacrylate Injection and Retrograde-balloon Tranvenous Embolization. ACG, 2011. e-Pub 2011.
- Mank G, Richards D, Reddy S, DuPont A, Pan JJ, Fallon MD. Two Cases of Weird Foreign Bodies Lodged at the Cricopharyngeus Successfully Managed with Flexible Endoscopic Extraction. ACG, 2011. e-Pub 2011.
- David R, Gaurav A, Rajasekhar T, Sushovan G, Alexander D. Predictors of Major Complications within 30 Days of PEG Placement in Cancer Patients: 1410. ACG 2011, 2011. e-Pub 2011.
- Sheila R, Gerald M, David R, Andrew D, Michael F. Gastric Variceal Hemorrhage: Successful Treatment with Combination Endoscopic Cyanoacrylate Injection and Retrograde-balloon Tranvenous Embolization: 501. ACG 2011, 2011. e-Pub 2011.
- Gerald M, David R, Sheila R, Andrew D, Jung PJ, Michael F. Two Cases of Weird Foreign Bodies Lodged at the Cricopharyngeus Successfully Managed with Flexible Endoscopic Extraction: 467. ACG 2011, 2011. e-Pub 2011.
- N Burns N, Richards D, DuPont A, Milam J. Strongyloidiasis in a Transplant Patient, 2011. e-Pub 2011.
- Richards D, Burns N, Milam J, DuPont A. Strongyloides stercoralis Hyperinfection Syndrome Diagnosed by Duodenal Biopsy. ACG, 2010. e-Pub 2010.
- Richards D, Wolf D. An Unusual Case of Small Bowel Limited Crohn’s Disease Presenting as Recurrent Intestinal Obstructions Diagnosed by Capsule Endoscopy and Double Balloon Enteroscopy. ACG, 2010. e-Pub 2010.
- David R, David W. An Unusual Case of Small Bowel Limited Crohn's Disease Presenting as Recurrent Intestinal Obstructions Diagnosed by Capsule Endoscopy and Double Balloon Enteroscopy: 997. ACG 2010, 2010. e-Pub 2010.
- David R, Nadja B, John M, Andrew D. Strongyloides stercoralisHyperinfection Syndrome Diagnosed by Duodenal Biopsy: 697. ACG 2010, 2010. e-Pub 2010.
- Richards DM. Clinicopathologic Features of Cilta-Cel-Associated Immune Effector Cell Enteritis: Evidence of a Novel Clonal CAR+ T-Cell Lymphoproliferation. United States and Canadian Academy of Pathology’s 115th Annual Meeting.
Book Chapters
- Richards DM, Ross WA. Gastrointestinal Bleeding in Critically Ill Cancer Patients. In: Oncologic Critical Care. Springer, Cham, 857-867, 2019.
- Richards DM, Thekkel S, Ross WA. Endoscopic and Pharmacologic Management of Upper GI Bleeding. In: Oncologic Critical Care. Springer, Cham, 869-883, 2019.
- Anni Chowdhury, Sajini Thekkel, William Ross, Richards DM. Endoscopic and Pharmacologic Management of Upper GI Bleeding. In: Oncologic Critical Care. Springer Cham.
- Michael Antony, William A. Ross, David M. Richards. Gastrointestinal Bleeding in Critically Ill Cancer Patients. In: Oncologic Critical Care. Springer Cham.
Books (edited and written)
- Triadafilopoulos G, Richards DM, Viswanathan L, Mehnaz S. Onco-Neurogastroenterology: Gastrointestinal Motility and Sensation Across the Cancer Spectrum. Springer, 2025.
Patient Reviews
CV information above last modified March 13, 2026