Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dalton Rielly Grayson, APRN

Family Nurse Practitioner in Signal Mountain, TN · enumerated 2025.

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

National Provider Identifier

1801788021

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dalton Rielly Grayson

Credential APRN

Sex Male

Practice address 1185 Hall Rd, Signal Mountain, TN, 37377

Phone (423) 637-6709

Enumeration date Jul 21, 2025

Last updated in NPPES Aug 3, 2025

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 39249 (TN) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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 Dalton Grayson practice?

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

What is the NPI number for Dalton Grayson?

The National Provider Identifier (NPI) for Dalton Grayson is 1801788021, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-03.