Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Guy Mastronarde, MD

Individual provider Pulmonary Disease Physician · NPI 1093828634

John Guy Mastronarde, MD is a Pulmonary Disease Physician in Portland, Oregon. Licensed in Ohio and Oregon. Registered with an NPI since 2006.

Licensed in
OH, OR
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1111 NE 99th Ave
Portland, OR 97220-9428
Phone: (503) 963-3030
Fax: (503) 963-3140
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence MD173777 (OR)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 35059362 (OH)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 35059362 (OH)

Record details

NPI number1093828634
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 17, 2006
Last updated in NPPESSeptember 21, 2015

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