Gregory Alexander, PH.D.
NPI 1104913961 · Counseling Psychologist · Bay Shore, NY
Gregory Alexander, PH.D. is a Counseling Psychologist provider in Bay Shore, NY (NPI 1104913961).
Provider details
- NPI number
- 1104913961
- Entity type
- Individual
- Primary specialty
- Counseling PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 008516-1 (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
19 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
- 2006-10-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gregory Alexander's NPI number?
- Gregory Alexander's National Provider Identifier (NPI) is 1104913961, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Alexander's specialty?
- Gregory Alexander is listed in the NPPES registry with a primary specialty of Counseling Psychologist (Behavioral Health & Social Service Providers).
- Where is Gregory Alexander located?
- Gregory Alexander's practice location on file with NPPES is 260 West Main St., Bay Shore, NY 11706-8322.
- What is Gregory Alexander's phone number?
- The practice phone number listed in the NPPES registry for Gregory Alexander is (631) 969-9792.
- Is Gregory Alexander's NPI active?
- Yes — Gregory Alexander's NPI (1104913961) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.