WILLIAM OSTERWEIS SELIG PSY.D.
NPI 1376994301
Psychologist - Clinical in Berkeley, CA

Q: What is William Selig's NPI number?

The NPI number for William Selig is 1376994301. It was assigned to this individual provider in the NPPES registry on June 30, 2016.

Q: What is William Selig's specialty?

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

Q: Is William Selig enrolled in Medicare?

No. William Selig has opted out of Medicare through October 1, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Q: When was this NPI record last updated?

The NPPES record for William Selig was last updated on June 1, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 June 30, 2016Opted out of Medicare · through Oct 1, 2026

1010 GRAYSON ST STE 3, BERKELEY, CA 94710(650) 503-8179 Get Directions Write a Review

NPPES record last updated: June 1, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 1, 2023, Jun 30, 2016 (2 updates tracked since 2016).

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About William Osterweis Selig Psy.d. NPPES

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

WILLIAM OSTERWEIS SELIG PSY.D. (NPI 1376994301) is an individual clinical provider in Berkeley, California, licensed in California (PSY27420) and active in the NPI registry since June 2016. He has opted out of Medicare through October 1, 2026.

NPPES Registry Identity

NPI1376994301

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameWILLIAM OSTERWEIS SELIGCredential: PSY.D.

Location Address1010 GRAYSON ST STE 3Berkeley, CA 94710-2611

Mailing Address1010 Grayson St Ste 3Berkeley, CA 94710-2611 · (650) 503-8179

Phone(650) 503-8179

Sole ProprietorNo

Enumeration DateJune 30, 2016

Last NPPES UpdateJune 1, 20232 updates tracked since enumeration

NPPES CertifiedJune 1, 2023

✔ NPI 1376994301 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in CA · PSY27420

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.

1010 GRAYSON ST STE 3, Berkeley, CA 94710

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

William Osterweis Selig Psy.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from October 1, 2022 through October 1, 2026.

Opt-Out Effective DateOctober 1, 2022

Opt-Out In Effect ThroughOctober 1, 2026Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LOUIZA LIVSHITS PSYD

Psychologist