Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Gerilyn Ann Feltham, FNP

Family Nurse Practitioner in Rockville Centre, NY · enumerated 2009.

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

National Provider Identifier

1538493168

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Registry record

Entity type Individual (Type 1)

Name Ms. Gerilyn Ann Feltham

Credential FNP

Sex Female

Practice address 243 Merrick Rd, Rockville Centre, NY, 11570

Phone (516) 537-9063

Fax (516) 726-1732

Enumeration date Sep 29, 2009

Last updated in NPPES Mar 28, 2019

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F335957-1 (NY) Primary

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

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 Gerilyn Feltham?

The National Provider Identifier (NPI) for Gerilyn Feltham is 1538493168, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gerilyn Feltham practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-28.