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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- Currently 3 of 4 stars
The overall average patient rating of Dr. John Heffner is Good.
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Specialties & Research
Dr. John Heffner, MD is board certified in Internal Medicine, Critical Care Medicine, and Pulmonary Disease.
- He has special expertise in 3 areas:
- Critical Care
- Evidence-based Medicine
- Respiration Disorders
Education & Awards
Dr. Heffner graduated from University of California at Los Angeles. He has 1 awards.
Dr. Heffner has 3 hospital affiliations:
- Providence Health System Oregon
- Providence Portland Medical Center
- Providence Willamette Falls Medical Center