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

William Matthew Klein, MD

Individual provider Pediatric Anesthesiology Physician · NPI 1033290838

William Matthew Klein, MD is a Pediatric Anesthesiology Physician in Portland, Oregon. Licensed in Oregon. Registered with an NPI since 2006.

Licensed in
OR
In the registry since
2006
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

3101 SW Sam Jackson Park Rd
Portland, OR 97239-3009
Phone: (503) 221-3424
Fax: (503) 221-3490
Show map & directions

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

Specialties & licences

Pediatric Anesthesiology Physician (primary) Taxonomy 207LP3000X · Licence MD20380 (OR)

Record details

NPI number1033290838
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 18, 2006
Last updated in NPPESNovember 16, 2012

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