Gregory Seth Alter, PH.D.
Clinical Psychologist · Oakland, CA
Gregory Seth Alter, PH.D. is a clinical psychologist with a practice address in Oakland, California, and NPI 1528168366, issued on Sep 22, 2006. Check the license (California PSY7422, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gregory Seth Alter
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY7422 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5666 Telegraph Ave, Oakland, CA 94609
- Phone
- (510) 545-6463
- Enumerated
- Sep 22, 2006
- Record last updated
- Aug 8, 2022
- Fax
- (510) 217-3588
- Medicare enrollment
- Enrolled (PECOS I20040514001270); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Verify Gregory Seth Alter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY7422Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
354 clinical psychologist records list a practice address in Oakland
They are 354 of the 18,558 NPPES records with a practice address in Oakland, and 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 354 in Oakland → All 12,647 in California → Every provider in Oakland →
Other clinical psychologist records in California
- Tanya Aaen, PH.D.Martinez, CA1477518561
- Jack Aamot, PSY.D.Napa, CA1770711210
- Brian Abary, PSY.DLos Angeles, CA1538354832
- Tatevik Abaryan, PH.D.Pacoima, CA1952682619
- Liana Abascal, PH.D.San Diego, CA1073740569
- Jessica Abdalla, PHDWalnut Creek, CA1558069211
- Mohamed Abdallah, PSY.DEl Centro, CA1912430851
- Megan Abdolrashidi, PSYDGilroy, CA1093293094
- Keri Abdullah, PH.D.San Diego, CA1699840587
- Qutayba Abdullatif, PH.D.Pasadena, CA1134667751
Common questions
What is Gregory Seth Alter, PH.D.'s NPI number?
Gregory Seth Alter, PH.D.'s National Provider Identifier (NPI) is 1528168366, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Seth Alter, PH.D. located?
The NPPES record lists a practice address at 5666 Telegraph Ave, Oakland, CA, 94609. Phone: (510) 545-6463. Providers update this record themselves, so call before visiting.
How can I verify Gregory Seth Alter, PH.D.'s license?
NPPES lists California license number PSY7422, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.