Dr. William Nason Salloway, PSY.D.
Dr. William Nason Salloway is a Clinical Psychologist provider (Psychologist) practicing in Needham, MA, registered in the NPPES registry with NPI 1629153473 since 2006. The credential PSYD stands for Doctor of Psychology.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1629153473 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. William Nason Salloway |
| Credential | PSY.D. |
| Sex | Male |
| Practice address | Needham, MA, 02492 |
| Phone | 7814497522 |
| Fax | 7814493134 |
| Enumeration date | 2006-10-26 |
| Last updated in NPPES | 2007-07-08 |
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 | Primary | 7473 | MA |
PSYD — Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential
Copy-ready billing details
Provider: William Salloway, PSY.D. NPI: 1629153473 Taxonomy: 103TC0700X (Clinical Psychologist) Address: Needham, MA, 02492
Verify this record
Cross-check NPI 1629153473 against the authoritative CMS record: view Dr. William Nason Salloway 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.
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.