Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Andrew James Natonson, M.D.

Neurology Physician in Portland, OR · enumerated 2012.

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

National Provider Identifier

1043565211

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Registry record

Entity type Individual (Type 1)

Name Dr. Andrew James Natonson

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 Jul 13, 2012

Last updated in NPPES Jun 17, 2016

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD176543 (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 1043565211 active?

Yes, as of the latest NPPES snapshot, NPI 1043565211 is active (record last updated 2016-06-17).

How do I verify Andrew Natonson's NPI record?

Cross-check NPI 1043565211 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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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 Nizar Chahin Neurology Physician · Portland, OR NPI 1225015761

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-17.