Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark G Nichols, DMD

General Practice Dentistry in Chambersburg, PA · enumerated 2006 · practices at Chambersburg Dental Associates Ltd.

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

National Provider Identifier

1033149893

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark G Nichols

Credential DMD

Sex Male

Practice address 225 Walker Rd, Chambersburg, PA, 17201

Phone (717) 264-2011

Fax (717) 264-0169

Enumeration date Jul 4, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DS031060L (PA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
1768456	Other	PA	MERC - UNITED CONC
1768458	Other	PA	MC - UNITED CONC
141448	Other	PA	CHAMBG - UNITED CONC

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 Mark Nichols?

Mark Nichols is registered in NPPES with the primary taxonomy of General Practice Dentistry. 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 2007-07-08.