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

Dr. Gregory Reed Cummings

Endodontics in Aliso Viejo, CA · enumerated 2010.

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

National Provider Identifier

1437481249

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory Reed Cummings

Sex Male

Practice address Aliso Viejo, CA, 92656

Phone (949) 360-9924

Fax (949) 362-9947

Enumeration date Feb 3, 2010

Last updated in NPPES Feb 3, 2010

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

Taxonomy & licenses

1223E0200X Endodontics Dental Providers · License 39390 (CA) 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 Gregory Cummings practice?

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

What is the NPI number for Gregory Cummings?

The National Provider Identifier (NPI) for Gregory Cummings is 1437481249, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-03.