Dr. Sheila Mclean Williamson, PH.D.
Dr. Sheila Mclean Williamson is a Clinical Psychologist provider (Psychologist) practicing in Nesbit, MS, registered in the NPPES registry with NPI 1891012340 since 2010. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1891012340 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Sheila Mclean Williamson |
| Credential | PH.D. |
| Sex | Female |
| Practice address | Nesbit, MS, 38651 |
| Phone | 9012465438 |
| Enumeration date | 2010-04-23 |
| Last updated in NPPES | 2010-04-23 |
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 | 35-594 | MS |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Copy-ready billing details
Provider: Sheila Williamson, PH.D. NPI: 1891012340 Taxonomy: 103TC0700X (Clinical Psychologist) Address: Nesbit, MS, 38651
Verify this record
Cross-check NPI 1891012340 against the authoritative CMS record: view Dr. Sheila Mclean Williamson 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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Is NPI 1891012340 active?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-04-23.