Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Raul Antonio Arguello, M.D.

Pediatric Endocrinology Physician in Danbury, CT · enumerated 2006.

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

National Provider Identifier

1093736423

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Registry record

Entity type Individual (Type 1)

Name Raul Antonio Arguello

Credential M.D.

Sex Male

Practice address 24 Hospital Ave, Danbury, CT, 06810

Phone (203) 739-6810

Fax (203) 739-6465

Enumeration date Jul 21, 2006

Last updated in NPPES Apr 14, 2022

Taxonomy & licenses

2080P0205X Pediatric Endocrinology Physician Allopathic & Osteopathic Physicians · License 046833 (CT) 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
1093736423	Medicaid	CT	-
01933417	Medicaid	NY	-

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

Where does Raul Arguello practice?

The practice location on file with NPPES is in Danbury, CT. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Raul Arguello?

The National Provider Identifier (NPI) for Raul Arguello is 1093736423, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-14.