Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Geretha M Diamond, RN, NP

Psychiatric/Mental Health Nurse Practitioner in Manhasset Hills, NY · enumerated 2011 · practices at Heritage Psychiatry Services, P.C..

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

National Provider Identifier

1144525528

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Registry record

Entity type Individual (Type 1)

Name Geretha M Diamond

Credential RN, NP

Sex Female

Practice address Manhasset Hills, NY, 11040

Phone (917) 359-1096

Fax (516) 869-0560

Enumeration date Jan 17, 2011

Last updated in NPPES Aug 22, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F401354-1 (NY) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 Geretha Diamond?

The National Provider Identifier (NPI) for Geretha Diamond is 1144525528, a Type 1 (individual) record in the CMS NPPES registry.

Where does Geretha Diamond practice?

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

Other providers at this practice address

Browse all →

David Trachtenberg Psychiatry Physician · Manhasset Hills, NY NPI 1063422822 Heritage Psychiatry Services, P.C. Geriatric Psychiatry Physician · Manhasset Hills, NY NPI 1255667465

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-22.