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Portrait of Tamer Khashab, MD, Hematology/Oncology specialist at Kelsey-Seybold Clinic.
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Tamer Khashab, MD, is a board-certified Internal Medicine physician with fellowship training in Hematology/Oncology. Dr. Khashab earned his Bachelor of Science degree in forensic science in 2006 at Baylor University in Waco, Texas. He earned his medical degree in 2013 at the University of Balamand Medical School in Beirut, Lebanon. Prior to residency, Dr. Khashab joined the laboratory of Dr. Felipe Samaniego at The University of Texas MD Anderson Cancer Center in the Department of Lymphoma/Myeloma, where he was involved in clinical and translational research. He completed his residency training in Internal Medicine in 2019 at Lankenau Medical Center in Wynnewood, Pa. Dr. Khashab completed his Hematology/Oncology fellowship training in 2022 at Baylor College of Medicine in Houston and served as chief fellow in his final year of training.

Dr. Khashab has co-authored multiple scientific papers on different aspects of Oncology and Hematology and has presented at various medical conferences throughout the country.

He joined Kelsey Seybold in August 2022.

Joined Kelsey-Seybold: August 2022

Awards & Publications

Awards

  • Gastrointestinal Oncology Fellow of the Year, 2022
  • ASCO Conquer Cancer Merit Award, 2021
  • Sharpe-Strumia Research Foundation Award, 2018 – 2019

Peer Reviewed Publications

  • Targeting phosphatidylinositol 3 kinase-β and -δ for Bruton tyrosine kinase resistance in diffuse large B-cell lymphoma. Jain N, Singh S, Laliotis G, Hart A, Muhowski E, Kupcova K, Chrbolkova T, Khashab T, Chowdhury SM, Sircar A, Shirazi F, Singh RK, Alinari L, Zhu J, Havranek O, Tsichlis P, Woyach J, Baiocchi R, Samaniego F, Sehgal Blood Advances. September 2020
  • Long-term overall- and progression-free survival after pentostatin, cyclophosphamide and rituximab therapy for indolent non-Hodgkin lymphoma. Khashab T, Hagemeister F, Romaguera JE, Fanale MA, Pro B, McLaughlin P, Rodriguez MA, Neelapu SS, Fayad L, Younes A, Feng L, Vega F, Kwak LW, Samaniego F. British Journal of Haematology. May 2019
  • Targeting Nucleolin for better survival in diffuse large B-cell lymphoma Jain N, Zhu H, Khashab T, Ye Q, George B, Mathur R, Singh RK, Berkova Z, Wise JF, Braun FK, Wang X, Patel K, Xu-Monette ZY, Courty J, Young KH, Sehgal L, Samaniego F. Leukemia. March 2018
  • Inhibition of demethylase KDM6B sensitizes diffuse large B-cell lymphoma to chemotherapeutic drugs Mathur R, Sehgal L, Havranek O, Köhrer S, Khashab T, Jain N, Burger JA, Neelapu SS, Davis RE, Samaniego F. Haematologica. February 2017
  • LncRNA MALAT1 promotes development of mantle cell lymphoma by associating with EZH2 Wang X, Sehgal L, Jain N, Khashab T, Mathur R, Samaniego F. Journal of Translational Medicine. December 2016
  • Resolution of lung adenocarcinoma after discontinuation of ibrutininb Khashab T, Loghavi S, Konoplev SN, Samaniego F. BMJ Case Reports. July 2016
  • Spontaneous Regression of Interdigitating Dendritic Sarcoma in a Patient with Concurrent Small Lymphocytic Lymphoma. Khashab, Tamer; Sehgal, Lalit; Medeiros, J, Samaniego, Felipe. BMJ Case Reports. June 2015
  • Pentostatin, Cyclophosphamide, and Rituximab (PCR) for Previously Untreated Advanced Stage, Low-grade B-cell Lymphomas. Felipe Samaniego, Fredrick Hagemeister, Jorge E. Romaguera, Michelle A. Fanale, Barbara Pro, Peter McLaughlin, M. Alma Rodriguez, Sattva S. Neelapu, Luis Fayad, Anas Younes, Lei Feng, Zuzana Berkova, Tamer Khashab, Lalit Sehgal, Francisco Vega-Vasquez, and Larry W. Kwak British Journal of Haematology. June 2015
  • Human Antigen R Suppresses Fas Expression in Liver Cancer. Haifeng Zhu, Zuzana Berkova, Rohit Mathur, Lalit Sehgal, Tamer Khashab, Rong-Hua Tao, Xue Ao, Lei Feng, Anita L. Sabichi, Boris Blechacz, Asif Rashid, Felipe Samaniego, Molecular Cancer Research. February 2015
  • Chronic expanding hematoma of the lung. Dezube R, Terry P, Akulian J, Mathai SC, Boyle M, Khasab T, Yarmus L. American Journal of Respiratory and Critical Care Medicine. December 2013

Presentations

  • Genomic landscape of advanced prostate cancer in racial minority populations: Real-world experience in a safety-net hospital oncology clinic. Tamer Khashab ASCO Genitourinary Cancer Symposium February 2021

Abstracts, Posters, Oral Presentations

  • Genomic landscape of advanced prostate cancer in racial minority populations: Real-world experience in a safety-net hospital oncology clinic. Tamer Khashab, Alexander D Le, Samantha Cohen, Salma Kaochar, Heidi Dowst, Attiya Batool Noor, Neda Zarrin-Khameh, Michael Austin Brooks, Guilherme Godoy, Maria A Berezina, Anna Ewa Schwarzbach, Michael E. Scheurer, Martha P. Mims, Nicholas Mitsiades ASCO Genitourinary Cancer Symposium February 2021 Abstract and Oral Presentation
  • Prevalence of microsatellite instability and monitoring response to immune checkpoint inhibition utilizing liquid biopsy among African American men with advanced prostate cancer. Tamer Khashab, Alexander D Le, Samantha Cohen, Salma Kaochar, Heidi Dowst, Attiya Batool Noor, Neda Zarrin-Khameh, Michael Austin Brooks, Guilherme Godoy, Maria A Berezina, Anna Ewa Schwarzbach, Michael E. Scheurer, Martha P. Mims, Nicholas Mitsiades ASCO Genitourinary Cancer Symposium February 2021 Poster
  • Purine analogs for patients with non-Hodgkin lymphoma and severe liver dysfunction Tamer Khashab MD, Ashley Mangeniello MD, Julianne Hibbs DO, Thomas Oliver DO, Jonathan Doroshow MD, Zonera Ali MD, Society of Hematology and Oncology, September 2018 Poster
  • The Shocking Truth: Phantom Shocks as a manifestation of psychological problems associated with ICD insertion Isaac Tea, Mario Caruso, Tamer Khashab, Peter Kowey Journal of the American College of Cardiology Volume 71, Issue 11 Supplement, March 2018 Poster
  • Total Eclipse of the Heart: Primary Pericardial Mesothelioma Presenting as Constrictive Pericarditis Isaac Tea, Mario Caruso, Sharif Ahmad, Tamer Khashab, Journal of the American College of Cardiology American College of Cardiology March 2018 Poster Presentation
  • Ten Year follow-up of pentostatin combined with cyclophosphamide, and rituximab in previously untreated indolent B-cell lymphoma Tamer Khashab, Muhammad Obaid Niaz, Fredrick B. Hagemeister, Jorge Enrique Romaguera, Michelle A. Fanale, Barbara Pro, Peter McLaughlin, Maria Alma Rodriguez, Sattva Swarup Neelapu, Luis Fayad, Anas Younes, Lei Feng, Zuzana Berkova, Neeraj Jain, Lalit Sehgal, Francisco Vega, Larry W. Kwak, Felipe Samaniego ASCO – Journal of Clinical Oncology May 2017 Abstract
  • Targeting mir101/ EZH2/NFkb axis by FGFR1 inhibitor in mantle cell lymphoma. Lalit Sehgal, Neeraj Jain, Tamer Khashab, Xin Wang, Sattva Neelapu, Felipe Samaniego. AACR April 2016 Abstract
  • Analysis of differentially expressed exosomal genes from ibrutinib resistant diffuse large B cell lymphoma. Neeraj Jain, Lalit Sehgal, Tamer Khashab, Felipe Samaniego. AACR; April 2016 Abstract
  • Tumor microenvironment influences survival of mantle cell lymphoma-initiating cells through FGF/FGFR1 signaling. Lalit Sehgal, Rohit Mathur, Zuzana Berkova, Tamer Khashab, Xin Wang, Jorge E. Romaguera, Alma E. Rodriguez, Sattva Neelapu, Felipe Samaniego. AACR April 2015 Abstract
  • Tumor microenvironment regulates survival of mantle cell lymphoma-initiating cells through FGF/FGFR1 signaling. Lalit Sehgal, Rohit Mathur, Zuzana Berkova, Tamer Khashab, Xin Wang, Jorge E. Romaguera, Alma E. Rodriguez, Sattva Neelapu, Felipe Samaniego, American Society for Hematology Annual Meeting December 2015 Abstract

Hobbies & Interests

Dr. Khashab enjoys fantasy football, traveling, and outdoor activities.

Fun Facts

The best advice Dr. Khashab has received is “Learn something new every day.”

Not everyone knows this, but Dr. Khashab has lived in five countries.

Chocolate is his guilty pleasure.

Medical School

  • University of Balamand Medical School (Beirut, Lebanon), 2013

Internship/Residency

  • Internal Medicine Residency: Lankenau Medical Center, 2019; Hematology/Oncology Fellowship: Baylor College of Medicine, 2022

Board Certifications

  • American Board of Internal Medicine - Internal Medicine
  • American Board of Internal Medicine - Hematology
Dr. Khashab is a member of the American Society of Clinical Oncology, the American Society of Hematology, and the Harris County Medical Association.

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