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Willamette Valley Rheumatolgy PC

Rheumatology Physician in Newberg, OR · enumerated 2009 · authorized official Ramon Macasa, Business Manager.

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

National Provider Identifier

1831324847

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Registry record

Entity type Organization (Type 2)
Legal business name Willamette Valley Rheumatolgy PC
Practice address 402 Villa Rd, Newberg, OR, 97132
Phone (503) 538-7500
Enumeration date May 19, 2009
Last updated in NPPES Jun 10, 2009

Taxonomy & classification

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License MD26899 (OR) Primary

Authorized official

Name Ramon Macasa
Title Business Manager
Phone (503) 840-5221

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 type of organization is Willamette Valley Rheumatolgy PC?
Willamette Valley Rheumatolgy PC is registered in NPPES as a Rheumatology Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-10.