Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Great Water Land Services Nurse Practitioner in Psychiatry Pllc

Psychiatric/Mental Health Nurse Practitioner in Massapequa, NY · enumerated 2024 · authorized official Jill Ryan, Nurse Practitioner.

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

National Provider Identifier

1386463040

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Registry record

Entity type Organization (Type 2)

Legal business name Great Water Land Services Nurse Practitioner in Psychiatry Pllc

Practice address 166 Euclid Ave, Massapequa, NY, 11758

Phone (516) 695-0389

Fax (956) 253-4627

Enumeration date Oct 8, 2024

Last updated in NPPES Oct 8, 2024

Taxonomy & classification

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Primary

Authorized official

Name Jill Ryan

Title Nurse Practitioner

Phone (516) 695-0389

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Great Water Land Services Nurse Practitioner in Psychiatry Pllc?

Great Water Land Services Nurse Practitioner in Psychiatry Pllc is registered in NPPES as a Psychiatric/Mental Health Nurse Practitioner (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-08.