Paul Grennan
NPI 1942818570 · Mental Health Counselor · East Meadow, NY
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paul Grennan is a Mental Health Counselor provider in East Meadow, NY (NPI 1942818570).
Provider details
- NPI number
- 1942818570
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- 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
5 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
- 2020-07-20
- Last updated
- 2020-07-20
- Certified
- 2020-07-20
Frequently asked questions
- What is Paul Grennan's NPI number?
- Paul Grennan's National Provider Identifier (NPI) is 1942818570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paul Grennan's specialty?
- Paul Grennan is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Paul Grennan located?
- Paul Grennan's practice location on file with NPPES is 1500 Hempstead Tpke, East Meadow, NY 11554-1551.
- What is Paul Grennan's phone number?
- The practice phone number listed in the NPPES registry for Paul Grennan is (914) 320-3963.
- Does Paul Grennan accept Medicare?
- Paul Grennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Paul Grennan's NPI active?
- Yes — Paul Grennan's NPI (1942818570) is active in the NPPES registry as of the last update on 2020-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.