Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Esther Marie O'Hare, APN

Family Nurse Practitioner in Knoxville, TN · enumerated 2013.

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

National Provider Identifier

1407194038

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Registry record

Entity type Individual (Type 1)

Name Ms. Esther Marie O'Hare

Credential APN

Sex Female

Practice address 2018 Clinch Avenue South Tower 2nd Floor, Knoxville, TN, 37916

Phone (865) 525-1425

Fax (877) 935-4221

Enumeration date Jan 16, 2013

Last updated in NPPES Feb 14, 2025

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 16766 (TN) Primary

Other identifiers

Identifier	Type	State	Issuer
Q000212	Medicaid	TN	-

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 Esther O'Hare?

Esther O'Hare is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. 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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Yvonne Bremer Pediatric Cardiology Physician · Knoxville, TN NPI 1356320311 Sumeet Sharma Pediatric Cardiology Physician · Knoxville, TN NPI 1124072095 Michael Liske Pediatric Cardiology Physician · Knoxville, TN NPI 1013091123 David Hurst Pediatric Cardiology Physician · Knoxville, TN NPI 1174601090 East Tennessee Children'S Hospital Association Inc. Pediatric Endocrinology Physician · Knoxville, TN NPI 1669678348 East Tennessee Children'S Hospital Association Inc. Clinical Biochemical Genetics Physician · Knoxville, TN NPI 1477941375 Megan Keeney Genetic Counselor (M.S.) · Knoxville, TN NPI 1083300032

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-14.