Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nizar Chahin, M.D.

Neurology Physician in Portland, OR · enumerated 2005.

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

National Provider Identifier

1225015761

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Registry record

Entity type Individual (Type 1)

Name Nizar Chahin

Credential M.D.

Sex Male

Practice address 3303 Sw Bond Ave, Suite 8, Portland, OR, 97239

Phone (503) 494-7772

Fax (503) 418-3283

Enumeration date Dec 27, 2005

Last updated in NPPES Aug 19, 2016

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD176969 (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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Nizar Chahin?

Nizar Chahin is registered in NPPES with the primary taxonomy of Neurology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Dawn Tilgner Acute Care Nurse Practitioner · Portland, OR NPI 1639174287 Lori Kelly Medical Physician Assistant · Portland, OR NPI 1689670226 Daniel Gibbs Neurology Physician · Portland, OR NPI 1720080427 Amy Leatherwood Family Nurse Practitioner · Portland, OR NPI 1386636736 Thomas Molloy Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Portland, OR NPI 1023000395 Christopher Dennett Athletic Trainer · Portland, OR NPI 1497743173 Alexandra Verdieck Devlaeminck Family Medicine Physician · Portland, OR NPI 1114900644 Douglas Khoury Colon & Rectal Surgery Physician · Portland, OR NPI 1457321754

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-19.