Gregory Vikingstad, PHD
NPI 1831566405 · Clinical Child & Adolescent Psychologist · Glen Oaks, NY
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Vikingstad, PHD is a Clinical Child & Adolescent Psychologist provider in Glen Oaks, NY (NPI 1831566405).
Provider details
- NPI number
- 1831566405
- Entity type
- Individual
- Primary specialty
- Clinical Child & Adolescent PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 68021286 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 300 Community DrManhasset, NY 11030-3816Phone: (516) 562-0100
- 300 Community DrManhasset, NY 11030-3816Phone: (516) 562-0100
Registry dates
- Enumerated
- 2015-08-30
- Last updated
- 2020-02-29
- Certified
- 2020-02-29
Frequently asked questions
- What is Gregory Vikingstad's NPI number?
- Gregory Vikingstad's National Provider Identifier (NPI) is 1831566405, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Vikingstad's specialty?
- Gregory Vikingstad is listed in the NPPES registry with a primary specialty of Clinical Child & Adolescent Psychologist (Behavioral Health & Social Service Providers).
- Where is Gregory Vikingstad located?
- Gregory Vikingstad's practice location on file with NPPES is 7529 263rd St, Glen Oaks, NY 11004-1150.
- What is Gregory Vikingstad's phone number?
- The practice phone number listed in the NPPES registry for Gregory Vikingstad is (718) 470-3142.
- Does Gregory Vikingstad accept Medicare?
- Gregory Vikingstad is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Vikingstad's NPI active?
- Yes — Gregory Vikingstad's NPI (1831566405) is active in the NPPES registry as of the last update on 2020-02-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.