Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Donald Sinclair Jr., LCSW

Clinical Social Worker in Miami, FL · enumerated 2017.

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

National Provider Identifier

1861931974

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Registry record

Entity type Individual (Type 1)

Name Donald Sinclair Jr.

Credential LCSW

Sex Male

Practice address 6100 Blue Lagoon Dr, Suite 400, Miami, FL, 33126

Phone (305) 398-6100

Fax (305) 757-2387

Enumeration date Feb 22, 2017

Last updated in NPPES Feb 22, 2017

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License SW13688 (FL) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Donald Sinclair?

Donald Sinclair is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-22.