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

Gregory Strum, M.D.

Orthopaedic Surgery Physician in Lake Oswego, OR · enumerated 2008.

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

National Provider Identifier

1629249354

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Registry record

Entity type Individual (Type 1)
Name Gregory Strum
Credential M.D.
Sex Male
Practice address Lake Oswego, OR, 97035
Phone (503) 635-1604
Fax (503) 635-6659
Enumeration date Mar 20, 2008
Last updated in NPPES Mar 20, 2008

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

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD13461 (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 Gregory Strum?
The National Provider Identifier (NPI) for Gregory Strum is 1629249354, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gregory Strum practice?
The practice location on file with NPPES is in Lake Oswego, OR. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-20.