Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

DIANA HOLNESS PMHNP
NPI 1881599678
Nurse Practitioner - Psychiatric/Mental Health in Felton, DE

Q: What is Diana Holness's NPI number?

The NPI number for Diana Holness is 1881599678. It was assigned to this individual provider in the NPPES registry on October 12, 2026.

Q: What is Diana Holness's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Diana Holness was last updated on October 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since October 12, 2026

349 BELFRY DR, FELTON, DE 19943(862) 252-3517 Get Directions Write a Review

NPPES record added: October 12, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Diana Holness Pmhnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIANA HOLNESS PMHNP (NPI 1881599678) is an individual psychiatric/mental health provider in Felton, Delaware, licensed in Delaware (L8-0011234) and active in the NPI registry since October 2026.

NPPES Registry Identity

NPI1881599678

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameDIANA HOLNESSCredential: PMHNP

Location Address349 BELFRY DRFelton, DE 19943-7446

Mailing Address349 Belfry DrFelton, DE 19943-7446 · (862) 252-3517

Phone(862) 252-3517

Sole ProprietorYes

Enumeration DateOctober 12, 2026

NPPES CertifiedOctober 12, 2026

✔ NPI 1881599678 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in DE · L8-0011234

349 BELFRY DR, Felton, DE 19943

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diana Holness's NPI number?

The NPI number for Diana Holness is 1881599678. It was assigned to this individual provider in the NPPES registry on October 12, 2026.

Where is Diana Holness located?

Diana Holness practices at 349 Belfry Dr, Felton, DE 19943. The listed phone number is (862) 252-3517.

What is Diana Holness's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

When was this NPI record last updated?

The NPPES record for Diana Holness was last updated on October 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.