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

Mary Joyce Grubb, FNP-C

Family Nurse Practitioner in Apache Junction, AZ · enumerated 2010 · practices at Grubb Med.

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

National Provider Identifier

1164726543

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mary Joyce Grubb

Credential FNP-C

Sex Female

Practice address Apache Junction, AZ, 85120

Phone (480) 984-1542

Fax (480) 986-6436

Enumeration date Dec 29, 2010

Last updated in NPPES Oct 3, 2013

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP3828 (AZ) Primary

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 Mary Joyce Grubb practice?

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

What is the NPI number for Mary Joyce Grubb?

The National Provider Identifier (NPI) for Mary Joyce Grubb is 1164726543, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Grubb Med Family Nurse Practitioner · Apache Junction, AZ NPI 1477859460

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-03.