William Osterweis Selig, PSY.D.
William Osterweis Selig is a Clinical Psychologist provider (Psychologist) practicing in Berkeley, CA, registered in the NPPES registry with NPI 1376994301 since 2016. The credential PSYD stands for Doctor of Psychology.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1376994301 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | William Osterweis Selig |
| Credential | PSY.D. |
| Sex | Male |
| Practice address | 1010 GRAYSON ST STE 3, Berkeley, CA, 94710 |
| Phone | 6505038179 |
| Enumeration date | 2016-06-30 |
| Last updated in NPPES | 2023-06-01 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103TC0700X | Clinical Psychologist | Primary | PSY27420 | CA |
PSYD — Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential
Copy-ready billing details
Provider: William Selig, PSY.D. NPI: 1376994301 Taxonomy: 103TC0700X (Clinical Psychologist) Address: 1010 GRAYSON ST STE 3, Berkeley, CA, 94710
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1679634786 | Emily Schiller | Individual | Clinical Psychologist | Berkeley, CA |
| 1427342807 | Lesley Cherry | Individual | Marriage & Family Therapist | Berkeley, CA |
| 1215273750 | Louiza Livshits | Individual | Psychologist | Berkeley, CA |
| 1477065076 | Alexander Mitchell | Individual | Marriage & Family Therapist | Berkeley, CA |
| 1508417452 | Yvette Rico | Individual | Student in an Organized Health Care Education/Training Program | Berkeley, CA |
| 1417524935 | Alexandra Weaverling | Individual | Clinical Psychologist | Berkeley, CA |
Verify this record
Cross-check NPI 1376994301 against the authoritative CMS record: view William Osterweis Selig on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-06-01.