Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Byron P Sansom A Dental Corporation

Q: What is the NPI number for Byron P Sansom A Dental Corporation?

The NPI for Byron P Sansom A Dental Corporation is 1558374132, a Type 2 (organization) record in the CMS NPPES registry.

Rural Acute Care Hospital in Mammoth Lakes, CA · enumerated 2006 · authorized official Byron Sansom, Owner/Dentist.

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

National Provider Identifier

1558374132

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Registry record

Entity type Organization (Type 2)

Legal business name Byron P Sansom A Dental Corporation

Practice address 452 Old Mammoth Rd., Suite L, Mammoth Lakes, CA, 93546

Phone (760) 934-3730

Fax (760) 934-3732

Enumeration date Aug 14, 2006

Last updated in NPPES Nov 5, 2013

Taxonomy & classification

282NR1301X Rural Acute Care Hospital Hospitals · License 33366 (CA) Primary

Authorized official

Name Byron Sansom

Title Owner/Dentist

Phone (760) 934-3730

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

What is the NPI number for Byron P Sansom A Dental Corporation?

The NPI for Byron P Sansom A Dental Corporation is 1558374132, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Byron P Sansom A Dental Corporation?

NPPES lists Byron Sansom (Owner/Dentist) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-05.