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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. Joseph Siemienczuk:

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Specialties & Research

Dr. Joseph Siemienczuk, MD is board certified in Internal Medicine.

Education & Awards

Dr. Siemienczuk graduated from Oregon Health & Science University, Portland.


Dr. Siemienczuk has 3 hospital affiliations:

  • Providence Portland Medical Center 
  • Providence St Vincent Medical Center 
  • Providence Health System Oregon 

> > > > Dr. Joseph Siemienczuk, MD

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Additional Information
Dr. Joseph N Siemienczuk MD is a male Internist, has 34 years of experience and practices in Internal Medicine.
Where does Dr. Joseph N. Siemienczuk practice?
Dr. Joseph Siemienczuk has 1 office location.
Dr. Joseph Siemienczuk practices Internal Medicine near Portland, OR.
See Portland Internists.