NPI Portal NPI Lookup & Verification

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

Ms. Gail Mary Flack, LCSW

Multi-Specialty Clinic/Center in Tulsa, OK · enumerated 2008 · practices at Osu College Health Sciences.

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

National Provider Identifier

1396980728

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Registry record

Entity type Individual (Type 1)
Name Ms. Gail Mary Flack
Credential LCSW
Sex Female
Practice address Tulsa, OK, 74127
Phone (918) 382-3541
Fax (918) 382-4621
Enumeration date Dec 15, 2008
Last updated in NPPES Dec 15, 2008

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

Taxonomy & licenses

261QM1300X Multi-Specialty Clinic/Center Ambulatory Health Care Facilities · License 3550 (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

What specialty is Gail Flack?
Gail Flack is registered in NPPES with the primary taxonomy of Multi-Specialty Clinic/Center. 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 2008-12-15.