Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gregory P Grantham Dmd PA

Q: What is the NPI number for Gregory P Grantham Dmd PA?

The NPI for Gregory P Grantham Dmd PA is 1477714384, a Type 2 (organization) record in the CMS NPPES registry.

Oral and Maxillofacial Surgery (Dentist) in Panama City, FL · enumerated 2008 · authorized official Gregory Grantham, Owner/Physician.

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

National Provider Identifier

1477714384

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Registry record

Entity type Organization (Type 2)

Legal business name Gregory P Grantham Dmd PA

Practice address 340 W 23rd St, Suite A, Panama City, FL, 32405

Phone (850) 769-3253

Fax (850) 784-0057

Enumeration date Jun 23, 2008

Last updated in NPPES Jun 23, 2008

Taxonomy & classification

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License DN4098 (FL) Primary

Authorized official

Name Gregory Grantham

Title Owner/Physician

Phone (850) 769-3253

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 P Grantham Dmd PA?

The NPI for Gregory P Grantham Dmd PA is 1477714384, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Gregory P Grantham Dmd PA?

NPPES lists Gregory Grantham (Owner/Physician) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-23.