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

Dr. Mark Eugene Mathieson, MD

Dermatology Physician in Orange City, FL · enumerated 2006.

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

National Provider Identifier

1144315821

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Eugene Mathieson

Credential MD

Sex Male

Practice address Orange City, FL, 32763

Phone (386) 628-3376

Fax (386) 877-0188

Enumeration date Oct 4, 2006

Last updated in NPPES May 29, 2024

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

Taxonomy & licenses

208200000X Plastic Surgery Physician Allopathic & Osteopathic Physicians · License ME128227 (FL) Secondary

208200000X Plastic Surgery Physician Allopathic & Osteopathic Physicians · License 35077172M (OH) Secondary

2086S0122X Plastic and Reconstructive Surgery Physician Allopathic & Osteopathic Physicians · License ME128227 (FL) Secondary

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License ME128227 (FL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
2331631	Medicaid	OH	-
ME1281227	Other	FL	MEDICAL LICENSE

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 Mathieson?

Mark Mathieson is registered in NPPES with the primary taxonomy of Dermatology Physician. 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 2024-05-29.