Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory D. Frost, DMD

General Practice Dentistry in Portland, ME · enumerated 2016 · practices at Community Dental.

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

National Provider Identifier

1649723636

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory D. Frost

Credential DMD

Sex Male

Practice address 190 Park Ave, Portland, ME, 04102

Phone (207) 874-1028

Enumeration date Jul 26, 2016

Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DEN4529 (ME) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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 Gregory Frost?

The National Provider Identifier (NPI) for Gregory Frost is 1649723636, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gregory Frost practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.