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Dr. Marc Romayne Davidson, MD

Orthopaedic Surgery Physician in Gresham, OR · enumerated 2006 · practices at Advantage Orthopedic and Sports Medicine Clinic LLP.

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

National Provider Identifier

1225017783

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Registry record

Entity type Individual (Type 1)
Name Dr. Marc Romayne Davidson
Credential MD
Sex Male
Practice address 24076 Se Stark, Ste 110, Gresham, OR, 97030
Phone (503) 661-5388
Fax (503) 666-3393
Enumeration date Jan 12, 2006
Last updated in NPPES Jul 13, 2026

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD17775 (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

Where does Marc Davidson practice?
The practice location on file with NPPES is in Gresham, OR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marc Davidson?
The National Provider Identifier (NPI) for Marc Davidson is 1225017783, a Type 1 (individual) record in the CMS NPPES registry.

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