NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leon Allen Assael, DMD

Oral & Maxillofacial Surgery (D.M.D.) in Portland, OR · enumerated 2006.

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

National Provider Identifier

1033124532

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Leon Allen Assael
Credential DMD
Sex Male
Practice address 3181 Sw Sam Jackson Park Rd, Portland, OR, 97239
Enumeration date Jul 31, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

204E00000X Oral & Maxillofacial Surgery (D.M.D.) Allopathic & Osteopathic Physicians · License D8246 (OR) Primary
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier Type State Issuer
297917 Medicaid OR -

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

How do I verify Leon Assael's NPI record?
Cross-check NPI 1033124532 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1033124532 active?
Yes, as of the latest NPPES snapshot, NPI 1033124532 is active (record last updated 2007-07-08).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.