Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Mcmullen, M.D.

Anatomic Pathology & Clinical Pathology Physician in Crystal River, FL · enumerated 2006.

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

National Provider Identifier

1740203389

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Registry record

Entity type Individual (Type 1)

Name Mark Mcmullen

Credential M.D.

Sex Male

Practice address 6201 N Suncoast Blvd, Crystal River, FL, 34428

Phone (352) 621-3100

Fax (352) 621-3121

Enumeration date Jul 25, 2006

Last updated in NPPES Mar 20, 2019

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License ME49726 (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
378304900	Medicaid	FL	-
27507	Other	FL	BLUE CROSS BLUE SHIELD

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 Mcmullen?

Mark Mcmullen is registered in NPPES with the primary taxonomy of Anatomic Pathology & Clinical Pathology 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 2019-03-20.