Gregory Alter Group
NPI 1578292082 · Psychologist · Oakland, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Alter Group is a Psychologist organization in Oakland, CA (NPI 1578292082).
Provider details
- NPI number
- 1578292082
- Entity type
- Organization
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Gregory Alter, Ceo(510) 734-0885
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
4 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
- 2022-06-09
- Last updated
- 2023-10-05
- Certified
- 2022-12-20
Frequently asked questions
- What is Gregory Alter Group's NPI number?
- Gregory Alter Group's National Provider Identifier (NPI) is 1578292082, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Gregory Alter Group?
- Gregory Alter Group is classified in the NPPES registry as Psychologist (Behavioral Health & Social Service Providers).
- Where is Gregory Alter Group located?
- Gregory Alter Group's practice location on file with NPPES is 3093 Broadway, Oakland, CA 94611-5779.
- What is Gregory Alter Group's phone number?
- The practice phone number listed in the NPPES registry for Gregory Alter Group is (510) 734-0885.
- Does Gregory Alter Group accept Medicare?
- Gregory Alter Group is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Gregory Alter Group?
- The authorized official listed on Gregory Alter Group's NPPES record is Gregory Alter, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Gregory Alter Group's NPI active?
- Yes — Gregory Alter Group's NPI (1578292082) is active in the NPPES registry as of the last update on 2023-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.