Colin James Thomas, MD
Hematology
Accepting new patients
Sees patients age 18 and up
Abramson Cancer Center Perelman 4th Floor West
Headshot of Colin James Thomas, MD
Penn Medicine Provider

About me

  • Assistant Professor of Clinical Medicine (Hematology-Oncology)

Education and training

  • Medical School: Temple University School of Medicine
  • Residency: Thomas Jefferson University Hospital
  • Fellowship: Thomas Jefferson University Hospital

What my patients think about me

Average Rating

247 reviews

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

Anonymous
February 2026
dr thomas listens and explains .
Anonymous
February 2026
dr thomas is a pro: listens; cares; explains everything clearly; and fields all questions
Anonymous
February 2026
dr thomas is concerned prepared and thorough.
Anonymous
February 2026
we felt confident in his abilities

Insurance accepted

My Locations

Penn Medicine hospital privileges

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
Dr. Thomas is a Penn Medicine physician.

Qualifications and experience

Treatments and Conditions

My research

Colin J. Thomas, Ming Jung Koh, Omar Elghawy, et al. Clinical outcomes of mature T- and NK-cell lymphomas in hepatitis B virus positive individuals: results from the PETAL Global Consortium , Leukemia & Lymphoma: 2026


John Sharp, Paolo Strati, Subodh Bhatta, Jennifer J Huang, Colin J Thomas, Omar Elghawy, Daniel Reef, Alexander Micah Gorzewski, John Seng Wang, Geoffrey Shouse, Catherine Reinert, Andinet Teferra, Esteban Toro Velez, Ari Pelcovits, Thomas A Ollila, William Bennett Clark, Victor Yazbeck, Joseph E Maakaron, Manali Kamdar, Lindsey A Fitzgerald, Alexey V Danilov, Reem Karmali, Natalie S Grover, Stefan K Barta, Timothy J Voorhees, Andy I Chen, Mazyar Shadman, Sairah Ahmed, Narendranath Epperla Real-World Outcomes and Toxicities of CAR-T in Relapsed/Refractory Follicular Lymphoma: A Multicenter Cohort Study , Blood Advances: 2026


Daniel J Landsburg, Nancy Musoke, Caren Gentile, Taylor R Brooks, Sunita D Nasta, Stefan K Barta, Jordan S Carter, Elise A Chong, Jakub Svoboda, Stephen J Schuster, Colin J Thomas, Emily B Tomasulo, Michael R Cook, Jennifer J D Morrissette, Paolo F Caimi, Brian T Hill Prognostic impact of TP53 alterations in cases of newly diagnosed large B-cell lymphoma , Leukemia: 2026


Adam J Olszewski, Thomas A Ollila, Dai Chihara, Geoffrey Shouse, Natalie Grover, Reem Karmali, Pallawi Torka, Colin Thomas, Praveen Ramakrishnan Geethakumari, Stefan K Barta, Nancy L Bartlett, Narendranath Epperla Comparative effectiveness of immunotherapy alone or with chemotherapy as first-line treatment for marginal zone lymphoma , Haematologica: 2025


Sharma, M., Myrdal, C., Thomas, C., Chung, J., Barta, S. & Kim, E. A Rare Case of Tender Facial Nodules as a Presenting Sign of Lymphoplasmacytic Lymphoma , JAAD Case Reports, 66: 2025,6:58-61.


Colin J. Thomas & Stefan K. Barta The Promise of Immunotherapies in T-Cell Lymphoma , Clinical Lymphoma, Myeloma & Leukemia, S2152-2650(25): 2025,03399-3.


Nikita K Dave, Veronica Carvajal, Alex C Watts, Jordan S Carter, Michael Cook, Colin Thomas, Donald E Tsai, Stephen J Schuster, James N Gerson, Stefan K Barta, Jakub Svoboda, Elise A Chong, Wei-Ting Hwang, Daniel J Landsburg, Sunita D Nasta Outcomes at a single institution with MTR induction and consolidation in the management of primary CNS lymphoma , Blood Neoplasia, 2(3): 2025,100102.


Narendranath Epperla, Geoffrey Shouse, Natalie S Grover, Pallawi Torka, Kaitlin Annunzio, Marcus Watkins, Andrea Anampa-Guzmán, Beth Christian, Colin Thomas, Stefan K Barta, Praveen Ramakrishnan Geethakumari, Reem Karmali, Nancy L Bartlett, Adam J Olszewski Impact of diagnosis to treatment interval on outcomes in patients with newly diagnosed marginal zone lymphoma - a US multisite study , Experimental Hematology & Oncology , 14(1): 2025


Pallawi Torka, Natalie S. Grover, Timothy J. Voorhees, Reem Karmali, Kaitlin Annunzio, Marcus P. Watkins, Andrea Anampa-Guzmán, Heather Reves, Montreh Tavakkoli, Beth Christian, Colin Thomas, Stefan K. Barta, Praveen Ramakrishnan Geethakumari, Nancy L. Bartlett, Geoffrey Shouse, Adam J. Olszewski, Narendranath Epperla Impact of Age on Biology, Presentation and Outcomes in Marginal Zone Lymphoma: Results From a Multicenter Cohort Study , Hematological Oncology , 43(3): 2025,e70087.


Omar Elghawy, Jonathan H Sussman, Austin G Yang, Colin J Thomas, Jordan S Carter, Daniel J Landsburg, Jakub Svoboda, Ellen Kim, Alain H Rook, Jina Chung, John P Plastaras, Michael LaRiviere, Harper Hubbeling, Monica Chelius, Sunita D Nasta, Elise A Chong, Stephen J Schuster, Stefan K Barta Pembrolizumab in Relapsed or Refractory Mycosis Fungoides or Sézary Syndrome , JAMA Dermatology , 161(6): 2025,656-658.