NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Sandra Hall Diaz, LCSW

Mental Health Counselor in Ocean Springs, MS · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1801977921

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Registry record

Entity type Individual (Type 1)
Name Ms. Sandra Hall Diaz
Credential LCSW
Sex Female
Practice address Ocean Springs, MS, 39564
Phone (228) 872-2011
Fax (228) 872-3791
Enumeration date Oct 17, 2006
Last updated in NPPES May 6, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License C1885 (MS) 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
0118148 Medicaid MS -
62-51970 Other MS MAIL HANDLERS BENEFIT PLA
SWL-3703000 Other NY AMERICAN PROFESSIONAL AGE
C1885 Other MS MS STATE LICENSE

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.

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Frequently asked questions

Where does Sandra Diaz practice?
The practice location on file with NPPES is in Ocean Springs, MS. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sandra Diaz?
The National Provider Identifier (NPI) for Sandra Diaz is 1801977921, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-06.