Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Susan Martello-Gill, MSN, FNP, PMHNP

Psychiatric/Mental Health Nurse Practitioner in Wantagh, NY · enumerated 2010.

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

National Provider Identifier

1598087363

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Registry record

Entity type Individual (Type 1)

Name Susan Martello-Gill

Credential MSN, FNP, PMHNP

Sex Female

Practice address 1414 Wantagh Ave, Wantagh, NY, 11793

Phone (516) 221-2123

Enumeration date Feb 22, 2010

Last updated in NPPES Mar 23, 2020

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F381822-1 (NY) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F381822-1 (NY) Secondary

364SP0200X Pediatric Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License F381822 (NY) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 401234 (NY) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

Other identifiers

Identifier	Type	State	Issuer
03385595	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

Where does Susan Martello-Gill practice?

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

What is the NPI number for Susan Martello-Gill?

The National Provider Identifier (NPI) for Susan Martello-Gill is 1598087363, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-23.