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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. Herschel Wallen:

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Specialties & Research

Dr. Herschel Wallen, MD is board certified in Internal Medicine and Medical Oncology.

  • He has special expertise in 4 areas:
  • Cancer
  • Immune System Disorders
  • Kidney Cancer
  • Melanoma

Education & Awards

Dr. Wallen graduated from University of Michigan Medical School, Ann Arbor.


Dr. Wallen has 5 hospital affiliations:

  • Samaritan Albany General Hospital 
  • Virginia Mason Medical Center 

> > > > Dr. Herschel Wallen, MD

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Additional Information
Dr. Herschel D Wallen MD is a male Internist, has 13 years of experience and practices in Internal Medicine and Medical Oncology.
Where does Dr. Herschel D. Wallen practice?
Dr. Herschel Wallen has 1 office location.
Dr. Herschel Wallen practices Internal Medicine and Medical Oncology near Corvallis, OR.
See Corvallis Internists and Corvallis Oncologists.