Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marina Kostyuk, APN

Nurse Practitioner in New Providence, NJ · enumerated 2018.

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

National Provider Identifier

1336643162

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Registry record

Entity type Individual (Type 1)

Name Marina Kostyuk

Credential APN

Sex Female

Practice address 890 Mountain Ave, New Providence, NJ, 07974

Phone (908) 277-8639

Fax (908) 277-8767

Enumeration date Mar 19, 2018

Last updated in NPPES Feb 23, 2023

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00805000 (NJ) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00805000 (NJ) Primary

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 Marina Kostyuk?

The National Provider Identifier (NPI) for Marina Kostyuk is 1336643162, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marina Kostyuk practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-23.