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

Dr. Heather Kaye Milloy, DO

Emergency Medicine Physician in Gallatin, TN · enumerated 2020.

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

National Provider Identifier

1407483258

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Registry record

Entity type Individual (Type 1)

Name Dr. Heather Kaye Milloy

Credential DO

Sex Female

Practice address Gallatin, TN, 37066

Phone (615) 328-8888

Enumeration date Mar 23, 2020

Last updated in NPPES Oct 29, 2026

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

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 5584 (TN) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

What is the NPI number for Heather Milloy?

The National Provider Identifier (NPI) for Heather Milloy is 1407483258, a Type 1 (individual) record in the CMS NPPES registry.

Where does Heather Milloy practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-10-29.