Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Charles Greg Stiver, LCSW

Clinical Social Worker in Tulsa, OK · enumerated 2010.

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

National Provider Identifier

1336460419

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Registry record

Entity type Individual (Type 1)

Name Charles Greg Stiver

Credential LCSW

Sex Male

Practice address 1516 S Boston Ave Ste 1, Tulsa, OK, 74119

Phone (918) 561-6000

Fax (918) 561-6001

Enumeration date Jun 12, 2010

Last updated in NPPES Feb 7, 2024

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 3845 (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.

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Frequently asked questions

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.

What specialty is Charles Stiver?

Charles Stiver 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.

Other providers at this practice address

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Melissa Earnest Marriage & Family Therapist · Tulsa, OK NPI 1972804334 Leah Owens Social Worker · Tulsa, OK NPI 1366744344 Leesa Cox Mental Health Counselor · Tulsa, OK NPI 1821382326 Jamie Calendine Counselor · Tulsa, OK NPI 1033483904 John Brown Professional Counselor · Tulsa, OK NPI 1750648150 Kelli Morris Counselor · Tulsa, OK NPI 1104185941 Donna Moore Professional Counselor · Tulsa, OK NPI 1427307552 Jonathan Coon Mental Health Counselor · Tulsa, OK NPI 1063857506

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-07.