Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Luis Alonso, MD

Pediatrics Physician in Wallingford, CT · enumerated 2006.

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

National Provider Identifier

1992864359

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Registry record

Entity type Individual (Type 1)

Name Mr. Luis Alonso

Credential MD

Sex Male

Practice address 1062 Barnes Road, Suite 102, Wallingford, CT, 06492

Phone (203) 294-6328

Fax (203) 294-6346

Enumeration date Dec 8, 2006

Last updated in NPPES Jul 7, 2011

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 016387 (CT) Primary

2080A0000X Pediatric Adolescent Medicine Physician Allopathic & Osteopathic Physicians · License 016387 (CT) Secondary

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
0Q2160	Other	-	HEALTHNET
P387376	Other	-	OXFORD
749832	Other	-	CONNECTICARE
83192	Other	-	AETNA
001163872	Medicaid	CT	-

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

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 Luis Alonso?

Luis Alonso is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Charleen Poglitsch Pediatric Adolescent Medicine Physician · Wallingford, CT NPI 1881780476 Kristin Perkins Pediatric Adolescent Medicine Physician · Wallingford, CT NPI 1992891592 David Krulee Child & Adolescent Psychiatry Physician · Wallingford, CT NPI 1801984927 Lisa Bankowski Pediatric Adolescent Medicine Physician · Wallingford, CT NPI 1073699310 Marie Helene Pouliot Pediatrics Physician · Wallingford, CT NPI 1982780227 Kerline Vassell Klaus Pediatrics Physician · Wallingford, CT NPI 1427134766 Marjorie Moniello Registered Nurse · Wallingford, CT NPI 1619055068 Vicky Stilwill Pediatric Registered Nurse · Wallingford, CT NPI 1477613859

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-07.