Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gregory Maclean Wilson, MDIV, MSS, LCSW
Social Worker in Newtown Square, PA · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528444858
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Registry record
Entity type Individual (Type 1)
Name Gregory Maclean Wilson
Credential MDIV, MSS, LCSW
Sex Male
Practice address 3625 Chapel Rd, Newtown Square, PA, 19073
Phone (484) 427-4673
Enumeration date Aug 10, 2015
Last updated in NPPES Apr 19, 2017
Taxonomy & licenses
101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License SW130059 (PA) Secondary
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License SW130059 (PA) Secondary
104100000X Social Worker Behavioral Health & Social Service Providers · License SW130059 (PA) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy.
About the LCSW credential
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.
Frequently asked questions
What is the NPI number for Gregory Wilson?
The National Provider Identifier (NPI) for Gregory Wilson is 1528444858, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gregory Wilson practice?
The practice location on file with NPPES is in Newtown Square, PA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-19.