Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Theresa E Maldonado, MD

Pediatric Emergency Medicine (Pediatrics) Physician in Greenwich, CT · enumerated 2006.

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

National Provider Identifier

1861578700

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Registry record

Entity type Individual (Type 1)

Name Theresa E Maldonado

Credential MD

Sex Female

Practice address 5 Perryridge Rd, Greenwich, CT, 06830

Phone (203) 863-3000

Enumeration date Oct 31, 2006

Last updated in NPPES Oct 15, 2018

Taxonomy & licenses

2080P0204X Pediatric Emergency Medicine (Pediatrics) Physician Allopathic & Osteopathic Physicians · License 208674 (NY) Secondary

2080P0204X Pediatric Emergency Medicine (Pediatrics) Physician Allopathic & Osteopathic Physicians · License 60338 (CT) Primary

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

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

How do I verify Theresa Maldonado's NPI record?

Cross-check NPI 1861578700 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1861578700 active?

Yes, as of the latest NPPES snapshot, NPI 1861578700 is active (record last updated 2018-10-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-15.