Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Regina S. Won, M.D.

Infectious Disease Physician in Gresham, OR · enumerated 2007.

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

National Provider Identifier

1619173085

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Registry record

Entity type Individual (Type 1)

Name Regina S. Won

Credential M.D.

Sex Female

Practice address 24800 Se Stark St Fl 3, Legacy Medicine Inpatient Service, Gresham, OR, 97030

Phone (503) 674-1122

Enumeration date Jun 22, 2007

Last updated in NPPES May 15, 2018

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD161903 (OR) Secondary

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License MD60490733 (WA) Secondary

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License MD161903 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1619173085 active?

Yes, as of the latest NPPES snapshot, NPI 1619173085 is active (record last updated 2018-05-15).

How do I verify Regina Won's NPI record?

Cross-check NPI 1619173085 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Jonathan Rogers Internal Medicine Physician · Gresham, OR NPI 1972738847

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-15.