Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marianne James Brett, LCSW
Clinical Social Worker in Tulsa, OK · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1912567132
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Registry record
Entity type Individual (Type 1)
Name Marianne James Brett
Credential LCSW
Sex Female
Practice address 4815 S Harvard Ave Ste 418, Tulsa, OK, 74135
Phone (918) 406-2663
Enumeration date Jun 19, 2019
Last updated in NPPES May 26, 2020
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6731 (OK) 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 Marianne Brett?
The National Provider Identifier (NPI) for Marianne Brett is 1912567132, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marianne Brett practice?
The practice location on file with NPPES is in Tulsa, OK. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Jodi Yelverton Physical Medicine & Rehabilitation Physician · Tulsa, OK NPI 1801816160 Rehab Doc Pllc Physical Medicine & Rehabilitation Physician · Tulsa, OK NPI 1710430939 Oklahoma Counseling Resources Counselor · Tulsa, OK NPI 1780216366 Productive Counseling Services Pllc Clinical Social Worker · Tulsa, OK NPI 1821602459
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-26.