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Arthur An M D Inc

Specialist in Arcadia, CA · enumerated 2007 · authorized official Lynna Del Castillo, Billing Administrator.

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

National Provider Identifier

1558572610

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Registry record

Entity type Organization (Type 2)
Legal business name Arthur An M D Inc
Other name <Unavail>
Practice address 1015 N 1st Ave, Arcadia, CA, 91006
Phone (626) 566-2866
Fax (626) 566-2850
Enumeration date May 24, 2007
Last updated in NPPES Feb 13, 2024

Taxonomy & classification

174400000X Specialist Other Service Providers · License A61877 (CA) Primary

Authorized official

Name Lynna Del Castillo
Title Billing Administrator
Phone (626) 827-6806

Other identifiers

Identifier Type State Issuer
00A618770 Other CA BLUE SHIELD
551872962 Other CA BLUE CROSS

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 Arthur An M D Inc?
Arthur An M D Inc is registered in NPPES as a Specialist (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-13.