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Central Coast Ear Nose and Throat Associates

Otolaryngology Physician in San Luis Obispo, CA · enumerated 2006 · authorized official William Watson, Owner.

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

National Provider Identifier

1558461418

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Registry record

Entity type Organization (Type 2)
Legal business name Central Coast Ear Nose and Throat Associates
Practice address 1035 Peach St, Suite 301, San Luis Obispo, CA, 93401
Phone (805) 545-5665
Fax (805) 544-6477
Enumeration date Sep 22, 2006
Last updated in NPPES Nov 28, 2007

Taxonomy & classification

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License G42368 (CA) Primary

Authorized official

Name William Watson
Title Owner
Phone (805) 545-5665

Other identifiers

Identifier Type State Issuer
GROO46750 Medicaid CA -
ZZZ25994Z Other CA BLUE SHIELD PIN
4306521 Other CA AETNA PIN

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.

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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 Central Coast Ear Nose and Throat Associates?
Central Coast Ear Nose and Throat Associates is registered in NPPES as a Otolaryngology Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-28.