Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Estrella Azurin Aguinaldo, M.D.

Internal Medicine Physician in Carson, CA · enumerated 2006.

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

National Provider Identifier

1548339278

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Registry record

Entity type Individual (Type 1)

Name Dr. Estrella Azurin Aguinaldo

Credential M.D.

Sex Female

Practice address Carson, CA, 90745

Phone (310) 233-2555

Fax (310) 233-2553

Enumeration date Nov 7, 2006

Last updated in NPPES Feb 24, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License A56493 (CA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A56493 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
00A564930	Other	CA	MEDICAL PROVIDER #

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 specialty is Estrella Aguinaldo?

Estrella Aguinaldo is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Estrella A. Aguinaldo, M.D., Inc. Internal Medicine Physician · Carson, CA NPI 1831499631 Estrella Azurin Aguinaldo, M.D., Inc. Internal Medicine Physician · Carson, CA NPI 1902430218

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-24.