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Kimberly Thomas Benjamin, MD, MSc Physician

Radiation Oncology Clinician

Dr. Benjamin is employed by Penn Medicine.

Clinical Specialties


  • Radiation Oncology

Programs & Centers:

Clinical Expertise:

  • Balloon Breast Brachytherapy
  • Brachytherapy
  • Chemoradiation
  • Combined Modality Therapy
  • Conformal Radiation Therapy (CRT)
  • External Beam Radiation Therapy
  • High Dose Rate Brachytherapy
  • Image-Guided Radiation Therapy (IGRT)
  • Intensity Modulated Radiation Therapy (IMRT)
  • Low Dose-Rate Brachytherapy
  • MammoSite
  • Neoadjuvant Chemotherapy
  • Proton Therapy
  • Radioembolization
  • Stereotactic Cranial Radiation
  • Stereotactic Radiation Therapy (SRT)
  • Three Dimensional Conformal Radiation Therapy
  • Tomotherapy
  • Total Body Irradiation
  • Unsealed Source Radiotherapy
  • Volumetric Modulated Arc Therapy
Show All Expertise

Practice Locations and Appointments

Insurance Accepted

  • Aetna US Healthcare
  • Cigna
  • Cigna HealthSpring
  • Clover Health Plan
  • CVS Health
  • Devon Health Services (Americare)
  • eLAP Services
  • Gateway Health Plan
  • Geisinger Health Plan
  • HealthAmerica / HealthAssurance, a Coventry Plan
  • HealthPartners
  • HealthPartners Medicare
  • HealthSmart
  • Highmark Blue Shield
  • Homestead Smart Health Plans
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana / Choicecare
  • Independence Blue Cross (Keystone East)
  • Intergroup
  • Keystone First
  • Keystone First Medicare
  • Multiplan
  • NJ Medicaid
  • NJ Qualcare
  • PA Health and Wellness (Centene) Medicare
  • PA Medicaid
  • PA Medicare
  • Preferred Health Care/LGH
  • Provider Partners Health Plan
  • Rail Road Medicare / Palmetto GBA
  • Remedy Partners at Penn Medicine
  • Tricare
  • United Healthcare
  • UnitedHealthcare Community Plan
  • US Family Health Plan
  • Veterans Choice Program

Education and Training

Medical School: University of Texas Southwestern Medical Center
Residency: University of Texas Southwestern Medical Center

Hospital Affiliation

Dr. Benjamin is employed by Penn Medicine.

Hospital Privileges:

  • Chester County Hospital: Has privileges to treat patients in the hospital.
  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
  • Pennsylvania Hospital: Has privileges to treat patients in the hospital.


Selected Publications:

Chen Liyuan, Shen Chenyang, Zhou Zhiguo, Maquilan Genevieve, Thomas Kimberly, Folkert Michael R, Albuquerque Kevin, Wang Jing: Accurate segmenting of cervical tumors in PET imaging based on similarity between adjacent slices. Computers in biology and medicine 97 : 30-36,2018.

Thomas K, Kang J, Fenton-Kerimian M, Formenti SC: Prone partial breast irradiation (PBI): prospective randomized trial to compare five years versus three fractions. ASTRO National Meeting : 2018.

Asal Rahimi, Kimberly Thomas, Ann Spangler, Roshni Rao, Marilyn Leitch, Rachel Wooldridge, Aeisha Rivers, Stephen Sieler, Kevin Albuquerque, Stella Stevenson, Sally Goudreau, Dan Garwood, Barbara Haley, David Euhus, John Heinzerling, Chuxiong Ding, Ang Gao, Chul Ahn, Rober Timmerman.: Preliminary Results of a Phase 1 Dose-Escalation Trial for Early-Stage Breast Cancer Using 5-Fraction Stereotactic Body Radiation Therapy for Partial-Breast Irradiation. International Journal of Radiation Oncology Biology & Physics : 98 (1): 196-205,2017 .

Mohamad Osama, Shiao Jean, Zhao Bo, Roach Karen, Ramirez Ezequiel, Vo Dat T, Thomas Kimberly, Gu Xuejun, Spangler Ann, Albuquerque Kevin, Rahimi Asal: Deep inspiration breathhold for left-sided breast cancer patients with unfavorable cardiac anatomy requiring internal mammary nodal irradiation. Practical radiation oncology 7 (6): e361-e367,2017.

Thomas Kimberly M, Maquilan Genevieve, Stojadinovic Strahinja, Medin Paul, Folkert Michael R, Albuquerque Kevin: Reduced toxicity with equivalent outcomes using three-dimensional volumetric (3DV) image-based versus nonvolumetric point-based (NV) brachytherapy in a cervical cancer population. Brachytherapy 16 (5): 943-948,2017.

Thomas Kimberly, Martin Travis, Gao Ang, Ahn Chul, Wilhelm Holly, Schwartz David L: Interruptions of Head and Neck Radiotherapy Across Insured and Indigent Patient Populations. Journal of oncology practice 13 (4): e319-e328,2017.

Sosa Alan, Heineman Nathan, Thomas Kimberly, Tang Kai, Feinstein Marie, Martin Michelle Y, Sumer Baran, Schwartz David L: Improving patient health engagement with mobile texting: A pilot study in the head and neck postoperative setting. Head & neck 39 (5): 988-995,2017.

Thomas KM, MD, MSc; Shiao J, BS, MSc; Minhajuddin A, PhD; Roshni, Rao, MD; Ann Spangler MD, MSc; Marilyn Leitch, MD; Aeisha Rivers, MD; Rachel Woolridge, MD; Barbara Haley, MD; Rahimi AS, MD, MS.: Constructing a Clinicopathologic Prognostic Model for a Triple Negative Breast Cancer (TNBC) Population. Americal Journal of Hematology/Oncology : 13 (1):11-21,2017.

X. Chen, K.Thomas, MR Folkert, DN Kim, AS Rahimi, Z. Zhou, J. Wang.: Predicting Recurrence in Tripple Negative Breast Cancer Patients from Clinical Parameters Unsing a Multi-Objective Classifier ASTRO National Meeting : 2017.

Shiao J, Thomas K M, Rahimi A S, Rao R, Yan Jingsheng, Xie Xian-Jin, DaSilva M, Spangler A, Leitch M, Wooldridge R, Rivers A, Farr D, Haley B, Kim D W Nathan: Aspirin/antiplatelet agent use improves disease-free survival and reduces the risk of distant metastases in Stage II and III triple-negative breast cancer patients. Breast cancer research and treatment 161 (3): 463-471,2017.

Academic Contact Info

3400 Civic Center Boulevard
Philadelphia, PA 19104
Patient appointments: 800-789-7366 (PENN)