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Oncology Specialist (cancer), Radiologist, Radiation Oncology
41 years of experience
Accepting new patients
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).

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Specialties & Research

  • He has special expertise in 1 area:
  • Cancer

Education & Awards

Dr. Cheng graduated from University Of Santo Tomas, Manila.


Dr. Cheng has 2 hospital affiliations:

  • North Shore/Long Island Jewish Hospital System - Southside Hospital 
  • South Nassau Communities Hospital 


  • Chinese

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Additional Information
Dr. William Man-Chan Cheng MD is a male Oncologist , has 41 years of experience and practices in Medical Oncology and Radiation Oncology.
Where does Dr. William M. Cheng practice?
Dr. William Cheng has 1 office location.
Dr. William Cheng practices Medical Oncology and Radiation Oncology near Oceanside, NY.
See Oceanside Oncologists and Oceanside Radiologists.