DEIRDRE ANN PARNELL
NPI 1225607997
Counselor - Mental Health in Hicksville, NY

Q: What is Deirdre Parnell's NPI number?

The NPI number for Deirdre Parnell is 1225607997. It was assigned to this individual provider in the NPPES registry on June 17, 2021. The provider is also known as Deidre Ann Parnell.

Q: What is Deirdre Parnell'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 Deirdre Parnell was last updated on April 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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 17, 2021PECOS Enrolled

950 SOUTH OYSTER BAY ROAD, HICKSVILLE, NY 11801(516) 822-6111(516) 396-0552 Get Directions Write a Review

NPPES record last updated: April 6, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 6, 2026, Jun 17, 2021 (2 updates tracked since 2021).

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About Deirdre Ann Parnell NPPES

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

DEIRDRE ANN PARNELL (NPI 1225607997) is an individual mental health provider in Hicksville, New York, licensed in New York (016401) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1225607997

Entity TypeIndividualFemale

Primary Taxonomy101YM0800X

Provider Legal NameDEIRDRE ANN PARNELL

Location Address950 SOUTH OYSTER BAY ROADHicksville, NY 11801-3510

Mailing Address950 South Oyster Bay RoadHicksville, NY 11801-3510 · (516) 822-6111 · Fax (516) 396-0552

Phone(516) 822-6111

Fax(516) 396-0552

Sole ProprietorNo

Medical School CMSOtherGraduated 2023

Enumeration DateJune 17, 2021

Last NPPES UpdateApril 6, 20262 updates tracked since enumeration

NPPES CertifiedApril 6, 2026

✔ NPI 1225607997 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

License✔ Licensed in NY · 016401

950 SOUTH OYSTER BAY ROAD, Hicksville, NY 11801

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Other Names 1

Other Name (5)Deidre Ann Parnell

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Deirdre Ann Parnell is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1850885716

PECOS Enrollment IDI20251209002836

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. YVES-MARTINE LAMARRE RN

Registered Nurse

950 SOUTH OYSTER BAY ROAD
HICKSVILLE, NY 11801

Nassau County (516) 822-6111

SARA NICOLE RUSSO

Counselor

950 SOUTH OYSTER BAY ROAD
HICKSVILLE, NY 11801

Nassau County (516) 433-7681

STEVEN ROTHMAN

Student in an Organized Health Care Education/Training Program

950 SOUTH OYSTER BAY ROAD
HICKSVILLE, NY 11801

Nassau County (516) 822-6111

GREGORY CALEB MILLER LMSW

Social Worker

950 SOUTH OYSTER BAY ROAD
HICKSVILLE, NY 11801

Nassau County (516) 822-6111

BRIGITTE EDMA

Case Manager/Care Coordinator

950 SOUTH OYSTER BAY ROAD
HICKSVILLE, NY 11801

Nassau County (516) 492-1591

MS. SAMIYA TONI-ANN COX

Behavior Technician

950 SOUTH OYSTER BAY ROAD
HICKSVILLE, NY 11801

Nassau County (516) 822-6111

ELYSE NICOLE DIAZ

Case Manager/Care Coordinator

950 SOUTH OYSTER BAY ROAD, 950 SOUTH OYSTER BAY ROAD
HICKSVILLE, NY 11801

Nassau County (516) 788-3843

BARREN DEVON BUTLER

Counselor

950 SOUTH OYSTER BAY ROAD
HICKSVILLE, NY 11801

Nassau County (516) 822-6111

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 Deirdre Parnell's NPI number?

The NPI number for Deirdre Parnell is 1225607997. It was assigned to this individual provider in the NPPES registry on June 17, 2021. The provider is also known as Deidre Ann Parnell.

Where is Deirdre Parnell located?

Deirdre Parnell practices at 950 South Oyster Bay Road, Hicksville, NY 11801. The listed phone number is (516) 822-6111.

What is Deirdre Parnell's specialty?

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

Is Deirdre Parnell enrolled in Medicare?

Yes. Deirdre Parnell is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Deirdre Parnell was last updated on April 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.