Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gabriella Christina Diaz, PMHNP

Psychiatric/Mental Health Nurse Practitioner in Joppa, MD · enumerated 2025.

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

National Provider Identifier

1780557660

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Registry record

Entity type Individual (Type 1)

Name Gabriella Christina Diaz

Credential PMHNP

Sex Female

Practice address 630 Towne Center Dr, Joppa, MD, 21085

Phone (410) 510-7099

Enumeration date Sep 26, 2025

Last updated in NPPES Sep 26, 2025

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R225958 (MD) 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.

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Frequently asked questions

What is the NPI number for Gabriella Diaz?

The National Provider Identifier (NPI) for Gabriella Diaz is 1780557660, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gabriella Diaz practice?

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

Other providers at this practice address

Browse all →

Charito Quintero-Howard Child and Adult Psychiatry Mental Health Clinic/Center (Including Community Mental Health Center) · Joppa, MD NPI 1285044875 Child and Adult Psychiatry Charito Quintero-Howard, MD, LLC Mental Health Clinic/Center (Including Community Mental Health Center) · Joppa, MD NPI 1801432661 Shanshan He Psychiatric/Mental Health Nurse Practitioner · Joppa, MD NPI 1992336242 Child and Adult Psychiatry Charito Quintero-Howard, MD, LLC Community/Behavioral Health Agency · Joppa, MD NPI 1255956009 Child and Adult Psychiatry Charito Quintero-Howard, MD, LLC Mental Health Clinic/Center (Including Community Mental Health Center) · Joppa, MD NPI 1962027631 Child and Adult Psychiatry Charito Quintero-Howard, MD, LLC Psychiatry Physician · Joppa, MD NPI 1366103632 Sayomi Mishima Psychiatric/Mental Health Nurse Practitioner · Joppa, MD NPI 1083592539

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-26.