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

210 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.

November 2025
very pleased with the visit
October 2025
my doctor is the best very reliable and gets to the bottom of everything
October 2025
very good. would definitely recommend
October 2025
i would steer anyone towards him.

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

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


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.


Colin J. Thomas, David Porter, Vivianna M. Van Deerlin, Siddharth Bhattacharyya, Veronica Carvajal, Joseph Kim, Salvatore Priore, Guang Yang, James N. Gerson & Stefan K. Barta Aleukemic soft-tissue relapse post allogeneic hematopoietic cell transplantation in T-prolymphocytic leukemia , Leukemia & Lymphoma , 66(6): 2025,1158-1161.


Omar Elghawy, Julia Wang, Olivia J. Leung, Nishwant Swami, Veronica Carvajal, Guang Yang, Daniel J. Landsburg, Jakub Svoboda, Sunita D. Nasta1, Elise A. Chong1, Stephen J. Schuster1, Colin J. Thomas, Jordan S. Carter, Adam Bagg, Stefan K. Barta Clinical Impact of Next-Generation Sequencing of T-cell Lymphomas: A Single Institution Experience , Clinical Lymphoma, Myeloma and Leukemia, 25(7): 2025,505-511.e2.


Omar Elghawy, Austin G. Yang, Jonathan H. Sussman, Colin J. Thomas, Jordan S. Carter, Daniel J. Landsburg, Jakub Svoboda, Ellen Kim, Alain H. Rook, Jina Chung, Jennifer Villasenor-Park, John P. Plastaras, Michael LaRiviere, Harper Hubbeling, Monica Chelius, Sunita D. Nasta, Elise A. Chong, Stephen J. Schuster, Stefan K. Barta Retrospective Cohort Study of Novel Oral Agents Lenalidomide and Duvelisib For Relapsed or Refractory Mycosis Fungoides and Sézary Syndrome , JAAD, 92(3): 2025,634-636.