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

Fausto Petruzziello, MD

Internal Medicine Physician in North Haven, CT · enumerated 2005.

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

National Provider Identifier

1316933419

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Registry record

Entity type Individual (Type 1)

Name Fausto Petruzziello

Credential MD

Sex Male

Practice address North Haven, CT, 06473

Phone (203) 672-2800

Fax (203) 672-2801

Enumeration date Sep 23, 2005

Last updated in NPPES Jul 22, 2016

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036943 (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
2V9255	Other	CT	HEALTHNET
001369439	Medicaid	CT	-
P00441640	Other	CT	RAILROADMEDICARE
010036943CT01	Other	CT	ANTHEM BCBS
010036943CT07	Other	CT	ANTHEM BCBS
5941638	Other	CT	AETNA
754451Q040	Other	CT	CONNECTICARE
P3846616	Other	CT	OXFORD HEALTH PLAN
754451	Other	CT	CONNECTICARE

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 Fausto Petruzziello?

Fausto Petruzziello 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-22.