Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MS. MARIANNE BIDDLE R.N., M.S.,C.S.
NPI 1013176478
Counselor - Mental Health in Newark, DE

Q: What is Marianne Biddle's NPI number?

The NPI number for Marianne Biddle is 1013176478. It was assigned to this individual provider in the NPPES registry on June 2, 2008.

Q: What is Marianne Biddle's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: When was this NPI record last updated?

The NPPES record for Marianne Biddle was last updated on August 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 June 02, 2008

27 GREEN MEADOW CT, NEWARK, DE 19711(302) 368-1582 Get Directions Write a Review

NPPES record last updated: August 16, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Ms. Marianne Biddle R.n., M.s.,c.s. NPPES

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

MS. MARIANNE BIDDLE R.N., M.S.,C.S. (NPI 1013176478) is an individual mental health provider in Newark, Delaware, licensed in Delaware (LE0000144) and active in the NPI registry since June 2008.

NPPES Registry Identity

NPI1013176478

Entity TypeIndividualFemale

Primary Taxonomy101YM0800X

Provider Legal NameMS. MARIANNE BIDDLECredential: R.N., M.S.,C.S.

Location Address27 GREEN MEADOW CTNewark, DE 19711-2583

Mailing Address27 Green Meadow CtNewark, DE 19711-2583 · (302) 368-1582

Phone(302) 368-1582

Sole ProprietorYes

Enumeration DateJune 2, 2008

Last NPPES UpdateAugust 16, 2026

✔ NPI 1013176478 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

Licenses✔ Licensed in DE · LE0000144✔ Licensed in DE · LEOOOO144

27 GREEN MEADOW CT, Newark, DE 19711

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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 Marianne Biddle's NPI number?

The NPI number for Marianne Biddle is 1013176478. It was assigned to this individual provider in the NPPES registry on June 2, 2008.

Where is Marianne Biddle located?

Marianne Biddle practices at 27 Green Meadow Ct, Newark, DE 19711. The listed phone number is (302) 368-1582.

What is Marianne Biddle's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Marianne Biddle was last updated on August 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.