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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. Alvin Matsumoto:

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Specialties & Research

Dr. Alvin Matsumoto, MD is board certified in Internal Medicine.

  • He has special expertise in 6 areas:
  • Castration (Orchiectomy)
  • Endocrinology
  • Geriatric Medicine
  • Hormone Replacement Therapy (HRT)
  • Obesity
  • Weight Loss

Education & Awards

Dr. Matsumoto graduated from University of Washington, Seattle. He has 2 awards.

One of America's Leading Experts on:
Castle Connolly's Top Doctors™ (2012 - 2013)


Dr. Matsumoto has 2 hospital affiliations:

  • University Of Washington Medical Ctr 
  • Veterans Affairs Puget Sound Health Care Center 


  • English

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Additional Information
Dr. Alvin Mitsu Matsumoto MD is a male Internist, has 37 years of experience and practices in Internal Medicine.
Where does Dr. Alvin M. Matsumoto practice?
Dr. Alvin Matsumoto has 1 office location.
Dr. Alvin Matsumoto practices Internal Medicine near Seattle, WA.
See Seattle Internists.