William James Lancaster III
William James Lancaster III is a Speech-Language Pathologist provider (Speech-Language Pathologist) practicing in Danvers, MA, registered in the NPPES registry with NPI 1417439589 since 2018. Practices at Northeast Arc, Inc. (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1417439589 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | William James Lancaster III |
| Sex | Male |
| Practice address | 1 SOUTHSIDE RD, Danvers, MA, 01923 |
| Phone | 9787624878 |
| Enumeration date | 2018-09-05 |
| Last updated in NPPES | 2018-09-05 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 235Z00000X | Speech-Language Pathologist | Primary | — | — |
Copy-ready billing details
Provider: William Lancaster NPI: 1417439589 Taxonomy: 235Z00000X (Speech-Language Pathologist) Address: 1 SOUTHSIDE RD, Danvers, MA, 01923
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1528569431 | Alaina Alderman | Individual | Behavior Analyst | Danvers, MA |
| 1548744410 | Leila Chergui | Individual | Developmental Therapist | Danvers, MA |
| 1710547047 | Melissa Ray | Individual | Developmental Therapist | Danvers, MA |
| 1467123232 | Sarah Whittier | Individual | Health Educator | Danvers, MA |
| 1376255257 | Andrea Plaitano | Individual | Developmental Therapist | Danvers, MA |
| 1144908864 | Halle Merkowitz | Individual | Early Intervention Provider Agency | Danvers, MA |
| 1174206494 | Valentina Orozco-Bakovic | Individual | Speech-Language Pathologist | Danvers, MA |
| 1770368938 | Ioanna Gouzos | Individual | Speech-Language Pathologist | Danvers, MA |
Verify this record
Cross-check NPI 1417439589 against the authoritative CMS record: view William James Lancaster III 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 2018-09-05.