Deirdre Parnell
NPI 1225607997 · Mental Health Counselor · Hicksville, NY
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Deirdre Parnell is a Mental Health Counselor provider in Hicksville, NY (NPI 1225607997).
Provider details
- NPI number
- 1225607997
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 016401 (NY)
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
5 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2021-06-17
- Last updated
- 2026-04-06
- Certified
- 2026-04-06
Frequently asked questions
- What is Deirdre Parnell's NPI number?
- Deirdre Parnell's National Provider Identifier (NPI) is 1225607997, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deirdre Parnell's specialty?
- Deirdre Parnell is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Deirdre Parnell located?
- Deirdre Parnell's practice location on file with NPPES is 950 South Oyster Bay Road, Hicksville, NY 11801-3510.
- What is Deirdre Parnell's phone number?
- The practice phone number listed in the NPPES registry for Deirdre Parnell is (516) 822-6111.
- Does Deirdre Parnell accept Medicare?
- Deirdre Parnell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Deirdre Parnell's NPI active?
- Yes — Deirdre Parnell's NPI (1225607997) is active in the NPPES registry as of the last update on 2026-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.