Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Marc D. Komori Stager, PSY.D.

Psychologist in Walnut Creek, CA · enumerated 2006 · practices at East Bay Family Therapy.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1962578559

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Registry record

Entity type Individual (Type 1)

Name Dr. Marc D. Komori Stager

Credential PSY.D.

Sex Male

Practice address Walnut Creek, CA, 94596

Phone (925) 325-5022

Enumeration date Nov 27, 2006

Last updated in NPPES Sep 27, 2011

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY 21734 (CA) Primary

103TF0000X Family Psychologist Behavioral Health & Social Service Providers Secondary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers Secondary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is NPI 1962578559 active?

Yes, as of the latest NPPES snapshot, NPI 1962578559 is active (record last updated 2011-09-27).

How do I verify Marc Komori Stager's NPI record?

Cross-check NPI 1962578559 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Sally Lograsso Marriage & Family Therapist · Walnut Creek, CA NPI 1356564165 David O'Grady Clinical Psychologist · Walnut Creek, CA NPI 1437375565 Sharon Norman Marriage & Family Therapist · Walnut Creek, CA NPI 1275737603 Ann Pagliaro Mental Health Counselor · Walnut Creek, CA NPI 1093907479 Andrea Mar Marriage & Family Therapist · Walnut Creek, CA NPI 1497907836 Barbara Barter Mental Health Counselor · Walnut Creek, CA NPI 1548597461 Leeann Harvey Clinical Psychologist · Walnut Creek, CA NPI 1124318613 East Bay Family Therapy Psychologist · Walnut Creek, CA NPI 1952684763

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-27.