Gregory Alexander, PH.D. Psychologist, PC
NPI 1750928735 · Counseling Psychologist · Bay Shore, NY
Gregory Alexander, PH.D. Psychologist, PC is a Counseling Psychologist organization in Bay Shore, NY (NPI 1750928735).
Provider details
- NPI number
- 1750928735
- Entity type
- Organization
- Primary specialty
- Counseling PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Gregory Alexander, Owner(631) 969-9792
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
6 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
- 2019-12-09
- Last updated
- 2019-12-09
- Certified
- 2019-12-09
Frequently asked questions
- What is Gregory Alexander, PH.D. Psychologist, PC's NPI number?
- Gregory Alexander, PH.D. Psychologist, PC's National Provider Identifier (NPI) is 1750928735, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Gregory Alexander, PH.D. Psychologist, PC?
- Gregory Alexander, PH.D. Psychologist, PC is classified in the NPPES registry as Counseling Psychologist (Behavioral Health & Social Service Providers).
- Where is Gregory Alexander, PH.D. Psychologist, PC located?
- Gregory Alexander, PH.D. Psychologist, PC's practice location on file with NPPES is 260 W Main St Ste 9, Bay Shore, NY 11706-8322.
- What is Gregory Alexander, PH.D. Psychologist, PC's phone number?
- The practice phone number listed in the NPPES registry for Gregory Alexander, PH.D. Psychologist, PC is (631) 969-9792.
- Who is the authorized official for Gregory Alexander, PH.D. Psychologist, PC?
- The authorized official listed on Gregory Alexander, PH.D. Psychologist, PC's NPPES record is Gregory Alexander, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Gregory Alexander, PH.D. Psychologist, PC's NPI active?
- Yes — Gregory Alexander, PH.D. Psychologist, PC's NPI (1750928735) is active in the NPPES registry as of the last update on 2019-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.