Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Tina M. Davis-Larkin, APN

Inpatient Obstetric Registered Nurse in Oak Lawn, IL · enumerated 2009.

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

National Provider Identifier

1023240587

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Registry record

Entity type Individual (Type 1)

Name Ms. Tina M. Davis-Larkin

Credential APN

Sex Female

Practice address 4440 W 95th St, Oak Lawn, IL, 60453

Phone (708) 684-4116

Fax (708) 684-4272

Enumeration date Aug 18, 2009

Last updated in NPPES Aug 18, 2009

Taxonomy & licenses

163WX0002X High-Risk Obstetric Registered Nurse Nursing Service Providers · License 209006718 (IL) Secondary

163WX0003X Inpatient Obstetric Registered Nurse Nursing Service Providers · License 209006718 (IL) Primary

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

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 Tina Davis-Larkin?

Tina Davis-Larkin is registered in NPPES with the primary taxonomy of Inpatient Obstetric Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-08-18.