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Radiation Oncology, Radiologist, Oncology Specialist (cancer)
36 years of experience
Accepting new patients
Video profile
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. John Thropay is Good. Dr. Thropay has been reviewed by 11 patients who have provided 2 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 3.7
Promptness 3.4
Courteous Staff 4.1
Accurate Diagnosis 4.3
Bedside Manner 4.2
Spends Time with Me 4.1
Follows Up After Visit 3.2

Specialties & Research

  • He has special expertise in 6 areas:
  • Brachytherapy
  • Breast Cancer
  • Cancer
  • Lung Cancer
  • Metastatic Breast Cancer
  • Prostate Cancer (Prostatic Neoplasm)

Education & Awards

Dr. Thropay graduated from University of California at Los Angeles. He has 2 awards.

Castle Connolly's Top Doctors™ (2012 - 2013)
Top 10 Doctor - Metro Area (2014)
Los Angeles Metro Area
Radiation Oncologist


Dr. Thropay has 56 hospital affiliations:

  • Pacific Alliance Medical Center 
  • St. Vincent Medical Center 


  • Tagalog
  • Chinese
  • Spanish
  • Vietnamese
  • Korean
  • English
  • Hindi
  • German
  • Mandarin

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Additional Information
Dr. John Paul Thropay MD is a male Radiation Oncologist, has 36 years of experience and practices in Radiation Oncology.
Where does Dr. John P. Thropay practice?
Dr. John Thropay has 6 office locations.
Dr. John Thropay practices Radiation Oncology near Montebello, CA.
Additional practice locations include: Downey, CA and Placentia, CA.
See Montebello Radiation Oncologists.