Theresa O'Neill, LCSW
NPI 1467625947 · Addiction (Substance Use Disorder) Counselor · Hicksville, NY
Theresa O'Neill, LCSW is a Addiction (Substance Use Disorder) Counselor provider in Hicksville, NY (NPI 1467625947).
Provider details
- NPI number
- 1467625947
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-04-07
- Last updated
- 2013-10-22
Frequently asked questions
- What is Theresa O'Neill's NPI number?
- Theresa O'Neill's National Provider Identifier (NPI) is 1467625947, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theresa O'Neill's specialty?
- Theresa O'Neill is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Theresa O'Neill located?
- Theresa O'Neill's practice location on file with NPPES is 950 S Oyster Bay Rd, Hicksville, NY 11801-3510.
- What is Theresa O'Neill's phone number?
- The practice phone number listed in the NPPES registry for Theresa O'Neill is (516) 822-4060.
- Is Theresa O'Neill's NPI active?
- Yes — Theresa O'Neill's NPI (1467625947) is active in the NPPES registry as of the last update on 2013-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.