Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Peninsula Sleep Lab

Q: What type of organization is Peninsula Sleep Lab?

Peninsula Sleep Lab is registered in NPPES as a Clinical Medical Laboratory (its primary provider taxonomy).

Clinical Medical Laboratory in South San Francisco, CA · enumerated 2010 · authorized official John Verzosa, Managing Member.

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

National Provider Identifier

1023321130

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Peninsula Sleep Lab

Practice address 91 Westborough Blvd, Suite 1020, South San Francisco, CA, 94080

Phone (650) 741-4180

Enumeration date Jul 17, 2010

Last updated in NPPES Apr 12, 2011

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License 4842057 (DE) Primary

Authorized official

Name John Verzosa

Title Managing Member

Phone (415) 279-9336

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Peninsula Sleep Lab?

Peninsula Sleep Lab is registered in NPPES as a Clinical Medical Laboratory (its primary provider taxonomy).

Providers at this address

Browse all →

Peninsula Dialysis Access, LLC Nephrology Physician · South San Francisco, CA NPI 1780907600

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-12.