Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Steven Judd Sadowsky, DDS

Prosthodontics in San Francisco, CA · enumerated 2006.

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

National Provider Identifier

1831267491

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Steven Judd Sadowsky

Credential DDS

Sex Male

Practice address 2155 Webster St, 400 M, San Francisco, CA, 94115

Phone (415) 929-6645

Enumeration date Dec 1, 2006

Last updated in NPPES Oct 18, 2013

Taxonomy & licenses

1223P0700X Prosthodontics Dental Providers · License DE000007348 (WA) Primary

122300000X Dentist Dental Providers · License D22410 (CA) Secondary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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 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 Steven Sadowsky?

Steven Sadowsky is registered in NPPES with the primary taxonomy of Prosthodontics. 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 2013-10-18.