Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Corey Lamar Grayson

Adult Companion in Fairfield, CA · enumerated 2012.

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

National Provider Identifier

1578826087

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mr. Corey Lamar Grayson

Sex Male

Practice address 2101 Courage Dr, Fairfield, CA, 94533

Phone (707) 784-8138

Enumeration date Jun 19, 2012

Last updated in NPPES May 29, 2025

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers Secondary

172V00000X Community Health Worker Other Service Providers Secondary

372600000X Adult Companion Nursing Service Related Providers Primary

101Y00000X Counselor Behavioral Health & Social Service Providers Secondary

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 Corey Grayson practice?

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

What is the NPI number for Corey Grayson?

The National Provider Identifier (NPI) for Corey Grayson is 1578826087, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-29.