NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Agnieszka Gryguc-Saxanoff

Internal Medicine Physician in Santa Monica, CA · enumerated 2018.

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

National Provider Identifier

1588155287

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Agnieszka Gryguc-Saxanoff
Sex Female
Practice address 1250 16th St # C2304, Santa Monica, CA, 90404
Enumeration date May 29, 2018
Last updated in NPPES Nov 9, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A174731 (CA) Primary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License A174731 (CA) Secondary

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 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 Agnieszka Gryguc-Saxanoff?
Agnieszka Gryguc-Saxanoff is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-09.