Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Sierra Sleep Diagnostics Inc.

Q: What is the NPI number for Sierra Sleep Diagnostics Inc.?

The NPI for Sierra Sleep Diagnostics Inc. is 1285124396, a Type 2 (organization) record in the CMS NPPES registry.

Sleep Disorder Diagnostic Clinic/Center in Grass Valley, CA · enumerated 2018 · authorized official Anthony Sunseri, President.

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

National Provider Identifier

1285124396

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Registry record

Entity type Organization (Type 2)

Legal business name Sierra Sleep Diagnostics Inc.

Practice address 140 Litton Dr Ste 230, Grass Valley, CA, 95945

Phone (530) 273-0360

Fax (530) 273-0390

Enumeration date May 14, 2018

Last updated in NPPES May 14, 2018

Taxonomy & classification

261QS1200X Sleep Disorder Diagnostic Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Anthony Sunseri

Title President

Phone (530) 273-0360

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 Sierra Sleep Diagnostics Inc.?

The NPI for Sierra Sleep Diagnostics Inc. is 1285124396, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Sierra Sleep Diagnostics Inc.?

NPPES lists Anthony Sunseri (President) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-14.