Ms. Maria Caridad Aguilera Astudillo, MD

Ms. Maria Caridad Aguilera Astudillo is a Endocrinology, Diabetes & Metabolism Physician provider (Internal Medicine) practicing in Sycamore, IL, registered in the NPPES registry with NPI 1164040887 since 2020. The credential MD stands for Doctor of Medicine.

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NPI	1164040887
Entity type	Individual (Type 1)
Name	Ms. Maria Caridad Aguilera Astudillo
Credential	MD
Sex	Female
Practice address	1850 GATEWAY DR STE 205, Sycamore, IL, 60178
Phone	8157541097
Fax	8157488957
Enumeration date	2020-07-09
Last updated in NPPES	2025-09-23

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
207R00000X	Internal Medicine Physician	Secondary	036173844	IL
207RE0101X	Endocrinology, Diabetes & Metabolism Physician	Primary	036173844	IL

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

Copy-ready billing details

Provider: Maria Aguilera Astudillo, MD
NPI: 1164040887
Taxonomy: 207RE0101X (Endocrinology, Diabetes & Metabolism Physician)
Address: 1850 GATEWAY DR STE 205, Sycamore, IL, 60178

Verify this record

Cross-check NPI 1164040887 against the authoritative CMS record: view Ms. Maria Caridad Aguilera Astudillo on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

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.

What specialty is Maria Aguilera Astudillo?

Maria Aguilera Astudillo is registered in NPPES with the primary taxonomy of Endocrinology, Diabetes & Metabolism Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-09-23.