NPI Portal NPI Lookup & Verification

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

Gregory A Mayer, DPM

Podiatrist in Greensboro, NC · enumerated 2006.

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

National Provider Identifier

1861462293

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Registry record

Entity type Individual (Type 1)
Name Gregory A Mayer
Credential DPM
Sex Male
Practice address Greensboro, NC, 27410
Fax (336) 286-9652
Enumeration date Jan 26, 2006
Last updated in NPPES Feb 29, 2024

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

Taxonomy & licenses

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License 170 (NC) Primary
DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM credential

Other identifiers

Identifier Type State Issuer
8908151 Medicaid NC -
2702271 Other NC UHC
480004627 Other NC RAILROAD MEDICARE
6582562002 Other NC CIGNA
08151 Other NC BCBS

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.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Gregory Mayer?
Gregory Mayer is registered in NPPES with the primary taxonomy of Podiatrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-29.