NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Laurence Athos M D Inc

Pulmonary Disease Physician in Castro Valley, CA · enumerated 2006 · authorized official Laurence Athos, President.

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

National Provider Identifier

1225109358

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Laurence Athos M D Inc
Practice address 19830 Lake Chabot Rd, Suite D, Castro Valley, CA, 94546
Fax (510) 889-5823
Enumeration date Nov 12, 2006
Last updated in NPPES Mar 18, 2015

Taxonomy & classification

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License G34546 (CA) Primary

Authorized official

Name Laurence Athos
Title President

Other identifiers

Identifier Type State Issuer
00G345460 Medicaid CA -

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 Laurence Athos M D Inc?
Laurence Athos M D Inc is registered in NPPES as a Pulmonary Disease Physician (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-18.