Dr. Heather A. Williams, PSYD
Dr. Heather A. Williams is a Clinical Psychologist provider (Psychologist) practicing in Berkeley, CA, registered in the NPPES registry with NPI 1659561652 since 2007. The credential PSYD stands for Doctor of Psychology.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1659561652 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Heather A. Williams |
| Credential | PSYD |
| Sex | Female |
| Practice address | Berkeley, CA, 94710 |
| Phone | 5102920369 |
| Fax | 8153013354 |
| Enumeration date | 2007-07-26 |
| Last updated in NPPES | 2008-08-19 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103TC0700X | Clinical Psychologist | Secondary | 017228 | NY |
| 103TC0700X | Clinical Psychologist | Primary | PSY22113 | CA |
PSYD — Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential
Copy-ready billing details
Provider: Heather Williams, PSYD NPI: 1659561652 Taxonomy: 103TC0700X (Clinical Psychologist) Address: Berkeley, CA, 94710
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1124047980 | Anna Berger | Individual | Clinical Psychologist | Berkeley, CA |
| 1487735411 | Benina Gould | Individual | Clinical Social Worker | Berkeley, CA |
| 1003956632 | Deborah Sharpe | Individual | Art Therapist | Berkeley, CA |
| 1083882039 | Jennifer Moll | Individual | Clinical Social Worker | Berkeley, CA |
| 1962657619 | Mary Walsh | Individual | Marriage & Family Therapist | Berkeley, CA |
Verify this record
Cross-check NPI 1659561652 against the authoritative CMS record: view Dr. Heather A. Williams 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 2008-08-19.