Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Martha Gillis Delafield, LCSW
Clinical Social Worker in Apex, NC · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1629010939
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Registry record
Entity type Individual (Type 1)
Name Martha Gillis Delafield
Credential LCSW
Sex Female
Practice address 336 John Horton Rd, Apex, NC, 27523
Phone (919) 781-1707
Enumeration date Jun 12, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 000486 (NC) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy.
About the LCSW credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 35560 | Other | NC | BCBS |
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
Where does Martha Delafield practice?
The practice location on file with NPPES is in Apex, NC. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Martha Delafield?
The National Provider Identifier (NPI) for Martha Delafield is 1629010939, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.