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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).

Learn more about Dr. Douglas Flieder:

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Specialties & Research

Dr. Douglas Flieder, MD is board certified in Anatomic Pathology.

  • He has special expertise in 2 areas:
  • Lung Cancer (Bronchiolo-Alveolar Adenocarcinoma)
  • Neuroendocrine Tumors

Education & Awards

Dr. Flieder graduated from University of Rochester .


Dr. Flieder has 1 hospital affiliations:

  • Fox Chase Cancer Center 


  • German

> > > > Dr. Douglas Flieder, MD

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Additional Information
Dr. Douglas Brian Flieder MD is a male Pathologist, has 20 years of experience and practices in Anatomic Pathology.
Where does Dr. Douglas B. Flieder practice?
Dr. Douglas Flieder has 2 office locations.
Dr. Douglas Flieder practices Anatomic Pathology near Philadelphia, PA.
See Philadelphia Pathologists.