Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John P Castronova, D.M.D

Orthodontics and Dentofacial Orthopedics Dentistry in Brooklyn, NJ · enumerated 2011.

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

National Provider Identifier

1366721573

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Registry record

Entity type Individual (Type 1)

Name Dr. John P Castronova

Credential D.M.D

Sex Male

Practice address 79 Ave U, Brooklyn, NJ, 07012

Phone (718) 373-6707

Enumeration date Aug 5, 2011

Last updated in NPPES Apr 9, 2022

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 057351 (NY) Primary

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 22DI02562700 (NJ) Secondary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier	Type	State	Issuer
04108210	Medicaid	NY	-
0442453	Medicaid	NJ	-

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 John Castronova practice?

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

What is the NPI number for John Castronova?

The National Provider Identifier (NPI) for John Castronova is 1366721573, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-09.