Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Charles Mack Grubb, P.A.

Physician Assistant in Irving, TX · enumerated 2006.

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

National Provider Identifier

1366484354

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Registry record

Entity type Individual (Type 1)

Name Charles Mack Grubb

Credential P.A.

Sex Male

Practice address 6750 N Macarthur Blvd Ste 350, Irving, TX, 75039

Phone (972) 556-1616

Fax (972) 556-1740

Enumeration date Jun 12, 2006

Last updated in NPPES May 22, 2024

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA03541 (TX) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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 Charles Grubb?

The National Provider Identifier (NPI) for Charles Grubb is 1366484354, a Type 1 (individual) record in the CMS NPPES registry.

Where does Charles Grubb practice?

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

Other providers at this practice address

Browse all →

Megan Conoley Internal Medicine Physician · Irving, TX NPI 1689611485 Richard Johnston Internal Medicine Physician · Irving, TX NPI 1205878477 Vincent Mccolm Internal Medicine Physician · Irving, TX NPI 1235234139 Amanda Muir Internal Medicine Physician · Irving, TX NPI 1932301637 Ho Bing Oei Rheumatology Physician · Irving, TX NPI 1811191786 Ryan Jones Internal Medicine Physician · Irving, TX NPI 1790983682 Yuching Yin Medical Physician Assistant · Irving, TX NPI 1669708749 Iffat Jahan Family Medicine Physician · Irving, TX NPI 1861705113

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-22.