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Ima Paydar, MD Physician

Instructor A of Radiation Oncology

Dr. Paydar is employed by Penn Medicine.

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Clinical Specialties


  • Radiation Oncology

Programs & Centers:

Clinical Expertise:

  • Blood Cancer
  • Bone Marrow Diseases
  • Bone Marrow Transplant
  • Brain Metastases
  • Conformal Radiation Therapy (CRT)
  • Image-Guided Radiation Therapy (IGRT)
  • Intensity Modulated Radiation Therapy (IMRT)
  • Leukemia
  • Lymphoma
  • Non-Hodgkin Lymphoma
  • Palliative Care
  • Proton Therapy
  • Radiosurgery
  • Spinal Cord Cancer
  • Stereotactic Body Radiation Therapy (SBRT)
  • Stereotactic Radiosurgery

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: Washington University
Residency: Georgetown University Medical Center


American College of Radiation Oncology (ACRO), National American College of Radiology (ACR), National American Society for Radiation Oncology (ASTRO), National Association of Residents in Radiation Oncology (ARRO), National

Hospital Affiliation

Dr. Paydar is employed by Penn Medicine.

Hospital Privileges:

  • 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:

Harkenrider MM, Martin B, Nieto K, Small C, Aref I, Bergman D, Chundury A, Elshaikh MA, Gaffney D, Jhingran A, Lee L, Paydar I, Ra K, Schwarz J, Thorpe C, Viswanathan AN, Small W Jr.: Multi-institutional Analysis of Vaginal Brachytherapy Alone for Women With Stage II Endometrial Carcinoma Int J Radiat Oncol Biol Phys : 2018.

Paydar I, Pepin A, Aghdam N, Yung TM, Bullock E, Lei S, Danner M, Satinsky S, Harter KW, Suy S, Dritschilo A, Lynch J, Collins SP: Supplemental IMRT may increase the risk of rectal bleeding in prostate cancer patients treated with Stereotactic Body Radiation Therapy (SBRT) ASTRO San Diego, CA : 2017.

Paydar I, Velenea A, Grindrod S, Jung M: Radiosensitization of cervical cancer cells by HDAC inhibitors AACR Washington D.C. : 2017.

Paydar I, Pepin A, King J, Cyr RA, Yung T, Siyuan Lei, Suy S, Dritschilo A, Lynch JH, Kole TP, Collins SP: Intensity Modudlated Radiation Therapy with Sterotactic Body Radiation Therapy Boost for Unfavorable Prostate Cancer: A Report on Three Year Toxicity American Radium Society Philadelphia, PA : 2017.

Paydar Ima, Pepin Abigail, Cyr Robyn A, King Joseph, Yung Thomas M, Bullock Elizabeth G, Lei Siyuan, Satinsky Andrew, Harter K William, Suy Simeng, Dritschilo Anatoly, Lynch John H, Kole Thomas P, Collins Sean P: Intensity-Modulated Radiation Therapy with Stereotactic Body Radiation Therapy Boost for Unfavorable Prostate Cancer: A Report on 3-Year Toxicity. Frontiers in oncology 7 : 5,2017.

Knoll Miriam A, Oermann Eric K, Yang Andrew I, Paydar Ima, Steinberger Jeremy, Collins Brian, Collins Sean, Ewend Matthew, Kondziolka Douglas: Survival of Patients With Multiple Intracranial Metastases Treated With Stereotactic Radiosurgery: Does the Number of Tumors Matter? American journal of clinical oncology : 2016.

Lischalk Jonathan W, Woo Stephanie M, Kataria Shaan, Aghdam Nima, Paydar Ima, Repka Michael C, Anderson Eric D, Collins Brian T: Long-term outcomes of stereotactic body radiation therapy (SBRT) with fiducial tracking for inoperable stage I non-small cell lung cancer (NSCLC). Journal of radiation oncology 5 (4): 379-387,2016.

Paydar Ima, Cyr Robyn A, Yung Thomas M, Lei Siyuan, Collins Brian Timothy, Chen Leonard N, Suy Simeng, Dritschilo Anatoly, Lynch John H, Collins Sean P: Proctitis 1 Week after Stereotactic Body Radiation Therapy for Prostate Cancer: Implications for Clinical Trial Design. Frontiers in oncology 6 : 167,2016.

Paydar Ima, Oermann Eric Karl, Knoll Miriam, Lee James, Collins Brian Timothy, Ewend Matthew, Kondziolka Douglas, Collins Sean P: The Value of the History and Physical for Patients with Newly Diagnosed Brain Metastases Considering Radiosurgery. Frontiers in oncology 6 : 40,2016.

Paydar I, Cyr RA, Yung TM, Lei S, Collins BT, Chen L, Suy S, Dritschilo A, Lynch JH, Collins SP: Proctitis One Week after Stereotactic Body Radiation Therapy for Prostate Cancer: Implications for Clinical Trial Design ASTRO San Antonio, TX : 2015.

Academic Contact Info

Perelman Center for Advanced Medicine – PCAM 2
3400 Civic Center Blvd.

Philadelphia, PA 19104
Patient appointments: 800-789-7366 (PENN)