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

Dr. Joseph J. Castronuovo, MD

Internal Medicine Physician in Key Largo, FL · enumerated 2006.

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

National Provider Identifier

1114982444

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Joseph J. Castronuovo

Credential MD

Sex Male

Practice address Key Largo, FL, 33037

Phone (305) 367-4859

Fax (305) 367-4859

Enumeration date Apr 19, 2006

Last updated in NPPES Jul 11, 2011

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 102498 (FL) Primary

207U00000X Nuclear Medicine Physician Allopathic & Osteopathic Physicians · License 102498 (FL) 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
W9L981	Other	NY	MEDICARE ID
904931	Other	NY	MEDICARE
00614517	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

What is the NPI number for Joseph Castronuovo?

The National Provider Identifier (NPI) for Joseph Castronuovo is 1114982444, a Type 1 (individual) record in the CMS NPPES registry.

Where does Joseph Castronuovo practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-11.