Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Ellen Caldwell, RDH

Dental Hygienist in Goldsboro, MD · enumerated 2010.

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

National Provider Identifier

1881910701

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Registry record

Entity type Individual (Type 1)

Name Mary Ellen Caldwell

Credential RDH

Sex Female

Practice address 316 Railroad Ave, Goldsboro, MD, 21636

Phone (410) 482-2224

Fax (410) 482-2511

Enumeration date Apr 16, 2010

Last updated in NPPES Apr 16, 2010

Taxonomy & licenses

124Q00000X Dental Hygienist Dental Providers · License 6128 (MD) 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.

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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 Mary Caldwell?

Mary Caldwell is registered in NPPES with the primary taxonomy of Dental Hygienist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-04-16.