NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Arthur C. Fenn & Romeo C. Agbayani MD Ptr

Otolaryngology Physician in Greenbrae, CA · enumerated 2009 · authorized official Romeo Agbayani, Physcian.

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

National Provider Identifier

1679714174

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Arthur C. Fenn & Romeo C. Agbayani MD Ptr
Practice address 1000 S Eliseo Dr Ste 103, Greenbrae, CA, 94904
Fax (415) 461-6744
Enumeration date Mar 12, 2009
Last updated in NPPES Mar 12, 2009

Taxonomy & classification

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians Primary
208600000X Surgery Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Romeo Agbayani
Title Physcian

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 Arthur C. Fenn & Romeo C. Agbayani MD Ptr?
The NPI for Arthur C. Fenn & Romeo C. Agbayani MD Ptr is 1679714174, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Arthur C. Fenn & Romeo C. Agbayani MD Ptr?
NPPES lists Romeo Agbayani (Physcian) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-12.