DR. GREGORY SETH ALTER PH.D.
NPI 1528168366
Psychologist - Clinical in Oakland, CA

Q: What is Gregory Alter's NPI number?

The NPI number for Gregory Alter is 1528168366. It was assigned to this individual provider in the NPPES registry on September 22, 2006.

Q: What is Gregory Alter's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Alter was last updated on August 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 22, 2006PECOS EnrolledAccepts Medicare Assignment

5666 TELEGRAPH AVE, OAKLAND, CA 94609(510) 545-6463(510) 217-3588 Get Directions Write a Review

NPPES record last updated: August 8, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Gregory Seth Alter Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY SETH ALTER PH.D. (NPI 1528168366) is an individual clinical provider in Oakland, California, licensed in California (PSY7422) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1979).

NPPES Registry Identity

NPI1528168366

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameDR. GREGORY SETH ALTERCredential: PH.D.

Location Address5666 TELEGRAPH AVEOakland, CA 94609-1708

Mailing Address3048 Richmond BlvdOakland, CA 94611-5847 · (510) 545-6463 · Fax (510) 217-3588

Phone(510) 545-6463

Fax(510) 217-3588

Sole ProprietorYes

Medical School CMSOtherGraduated 1979

Enumeration DateSeptember 22, 2006

Last NPPES UpdateAugust 8, 2022

NPPES CertifiedAugust 8, 2022

✔ NPI 1528168366 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 11

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in CA · PSY7422

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

Also ListedClinical NeuropsychologistTaxonomy 103G00000X · License PSY7422 (CA)

Also ListedPsychologistTaxonomy 103T00000X · License PSY7422 (CA)

Also ListedPsychologist · Addiction (Substance Use Disorder)Taxonomy 103TA0400X · License PSY7422 (CA)

Also ListedPsychologist · Adult Development & AgingTaxonomy 103TA0700X · License PSY7422 (CA)

Also ListedPsychologist · Cognitive & BehavioralTaxonomy 103TB0200X · License PSY7422 (CA)

Also ListedPsychologist · Clinical Child & AdolescentTaxonomy 103TC2200X · License PSY7422 (CA)

Also ListedPsychologist · ForensicTaxonomy 103TF0200X · License PSY7422 (CA)

Also ListedPsychologist · Health ServiceTaxonomy 103TH0100X · License PSY7422 (CA)

Also ListedPsychologist · SchoolTaxonomy 103TS0200X · License PSY7422 (CA)

Also ListedMarriage & Family TherapistTaxonomy 106H00000X · License PSY7422 (CA)

5666 TELEGRAPH AVE, Oakland, CA 94609

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory Seth Alter Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7719977396

PECOS Enrollment IDI20040514001270

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94609 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$202.35 typical visit price

range $69.00 – $202.35

Typical copayment $50.58 (range $17.25 – $50.58)

Most-billed visit code 99205

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Alter's NPI number?

The NPI number for Gregory Alter is 1528168366. It was assigned to this individual provider in the NPPES registry on September 22, 2006.

Where is Gregory Alter located?

Gregory Alter practices at 5666 Telegraph Ave, Oakland, CA 94609. The listed phone number is (510) 545-6463.

What is Gregory Alter's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Gregory Alter enrolled in Medicare?

Yes. Gregory Alter is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Gregory Alter accept?

Health plans from Providence Health Plan list Gregory Alter as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gregory Alter was last updated on August 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.