Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Elizabeth R Gumas, NP

Nurse Practitioner in Concord, CA · enumerated 2006.

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

National Provider Identifier

1801843792

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Registry record

Entity type Individual (Type 1)

Name Elizabeth R Gumas

Credential NP

Sex Female

Practice address 2299 Bacon St, Concord, CA, 94520

Phone (925) 676-3450

Enumeration date May 27, 2006

Last updated in NPPES Jan 3, 2022

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 546730 (CA) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 12702 (CA) 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

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 Elizabeth Gumas?

The National Provider Identifier (NPI) for Elizabeth Gumas is 1801843792, a Type 1 (individual) record in the CMS NPPES registry.

Where does Elizabeth Gumas practice?

The practice location on file with NPPES is in Concord, CA. 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 2022-01-03.