NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Matthew Blackburn, M.D.

Medical Oncology Physician in Portland, OR · enumerated 2017.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1376076828

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Registry record

Entity type Individual (Type 1)
Name Dr. Matthew Blackburn
Credential M.D.
Sex Male
Practice address Portland, OR, 97210
Phone (971) 262-9600
Enumeration date Apr 11, 2017
Last updated in NPPES Aug 17, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD214431 (OR) Secondary
207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License MD214431 (OR) Secondary
207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License MD214431 (OR) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Matthew Blackburn?
The National Provider Identifier (NPI) for Matthew Blackburn is 1376076828, a Type 1 (individual) record in the CMS NPPES registry.
Where does Matthew Blackburn practice?
The practice location on file with NPPES is in Portland, OR. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-17.