Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Kathryn J Hayes, MD

Obstetrics & Gynecology Physician in Oak Ridge, TN · enumerated 2007.

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

National Provider Identifier

1154548105

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Registry record

Entity type Individual (Type 1)

Name Dr. Kathryn J Hayes

Credential MD

Sex Female

Practice address 988 Oak Ridge Tpke, Suite 140, Oak Ridge, TN, 37830

Phone (865) 483-7415

Fax (865) 483-7980

Enumeration date Apr 19, 2007

Last updated in NPPES May 17, 2011

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 4301088503 (MI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Kathryn Hayes practice?

The practice location on file with NPPES is in Oak Ridge, TN. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Kathryn Hayes?

The National Provider Identifier (NPI) for Kathryn Hayes is 1154548105, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-17.