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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).

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Specialties & Research

Dr. Michael Koss, MD is board certified in Anatomic Pathology.

  • He has special expertise in 23 areas:
  • AIDS/HIV (Acquired Immunodeficiency Syndrome)
  • Amyloidosis
  • Carcinoid Tumor
  • Carcinoma
  • Carcinosarcoma
  • Germ Cell Cancer (Germ Cell and Embryonal Neoplasm)
  • Glandular Cancer (Adenocarcinoma)
  • Interstitial Lung Diseases
  • Kidney Disease (Glomerulonephritis)
  • Lipoma
  • Lung Cancer
  • Lung Cancer (Pleural Neoplasms)
  • Lung Cancer (Pulmonary Blastoma)
  • Lung Cancer (Small Cell Carcinoma)
  • Lymphoma
  • Lymphoproliferative Disorders
  • Mediastinal Cyst
  • Mesothelioma (Asbestos-related Cancer)
  • Pulmonary Fibrosis
  • Smooth Muscle Cancer (Leiomyosarcoma)
  • > Show all expertise

Education & Awards

Dr. Koss graduated from Stanford University. He has 7 awards.

2011 list of America's Top Doctors, compiled by Castle Connolly Medical Ltd
Magnum Cum Laude, Columbia College, June 1965
Voted Best Doctors in America, 2003
Phi Beta Kappa, Columbia College
Castle Connolly America's Top Doctors® (2006 - 2008, 2010 - 2015)
Castle Connolly America's Top Doctors® for Cancer (2005 - 2007, 2009 - 2012, 2014 - 2015)
Castle Connolly's Top Doctors™ (2012 - 2013)


Dr. Koss has 8 hospital affiliations:

  • USC University Hospital 
  • Los Angeles County + University of Southern California Medical Center 


  • Spanish
  • English
  • French

> > > > Dr. Michael Koss, MD

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Additional Information
Dr. Michael N Koss MD is a male Pathologist, has 42 years of experience and practices in Pathology and Anatomic Pathology.
Where does Dr. Michael N. Koss practice?
Dr. Michael Koss has 2 office locations.
Dr. Michael Koss practices Pathology and Anatomic Pathology near Los Angeles, CA.
See Los Angeles Pathologists.