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MS. THERESA O'NEILL LCSW
NPI 1467625947
Counselor - Addiction (Substance Use Disorder) in Hicksville, NY

Active since April 07, 2008
950 S OYSTER BAY RD, HICKSVILLE, NY 11801(516) 822-4060 Get Directions Write a Review

NPPES record last updated: October 22, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Ms. Theresa O'neill Lcsw NPPES

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

MS. THERESA O'NEILL LCSW (NPI 1467625947) is an individual addiction (substance use disorder) provider in Hicksville, New York and active in the NPI registry since April 2008.

NPPES Registry Identity

NPI1467625947
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameMS. THERESA O'NEILLCredential: LCSW
Location Address950 S OYSTER BAY RDHicksville, NY 11801-3510
Mailing Address950 S Oyster Bay RdHicksville, NY 11801-3510 · (516) 822-4060 · Fax (516) 396-0559
Phone(516) 822-4060
Sole ProprietorYes
Enumeration DateApril 7, 2008
Last NPPES UpdateOctober 22, 2013
✔ NPI 1467625947 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
950 S OYSTER BAY RD, Hicksville, NY 11801
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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.

MISS ELIZABETH SUSAN PULLARA LMSW
Social Worker
950 S OYSTER BAY RD
HICKSVILLE, NY 11801
Nassau County (516) 822-6111
YOLANDA HARRELL
Peer Specialist
950 S OYSTER BAY RD
HICKSVILLE, NY 11801
Nassau County (516) 822-6111
LATOYA WILLIAMS MHC
Counselor (Mental Health)
950 S OYSTER BAY RD
HICKSVILLE, NY 11801
Nassau County (516) 822-6111
CAITLIN ROSE GARCIA
Case Manager/Care Coordinator
950 S OYSTER BAY RD
HICKSVILLE, NY 11801
Nassau County (516) 822-6111
DARIEN JENKINS
Counselor
950 S OYSTER BAY RD
HICKSVILLE, NY 11801
Nassau County (516) 822-6111
MR. ORLANDO DEVAL ISAAC
Counselor
950 S OYSTER BAY RD
HICKSVILLE, NY 11801
Nassau County (516) 822-6111
CATHERINE CLARKE
Case Manager/Care Coordinator
950 S OYSTER BAY RD
HICKSVILLE, NY 11801
Nassau County (516) 495-8034
FRANK SIRIANNI
Student in an Organized Health Care Education/Training Program
950 S OYSTER BAY RD
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 Theresa O'neill's NPI number?

The NPI number for Theresa O'neill is 1467625947. It was assigned to this individual provider in the NPPES registry on April 7, 2008.

Where is Theresa O'neill located?

Theresa O'neill practices at 950 S Oyster Bay Rd, Hicksville, NY 11801. The listed phone number is (516) 822-4060.

What is Theresa O'neill's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Theresa O'neill was last updated on October 22, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.