Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Catherine Graves Humphreys, NP

Family Nurse Practitioner in Greenville, SC · enumerated 2008 · practices at Prisma Health-Upstate.

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

National Provider Identifier

1457526840

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Registry record

Entity type Individual (Type 1)

Name Catherine Graves Humphreys

Credential NP

Sex Female

Practice address 890 W Faris Rd Ste 100, Greenville, SC, 29605

Phone (864) 455-2888

Fax (864) 455-2885

Enumeration date Apr 25, 2008

Last updated in NPPES Mar 17, 2018

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 3546 (SC) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
GP4690	Medicaid	SC	-
NP1268	Medicaid	SC	-

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 Catherine Humphreys?

The National Provider Identifier (NPI) for Catherine Humphreys is 1457526840, a Type 1 (individual) record in the CMS NPPES registry.

Where does Catherine Humphreys practice?

The practice location on file with NPPES is in Greenville, SC. 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 2018-03-17.