Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Logan, M.D.

Otolaryngology Physician in Evansville, IN · enumerated 2005.

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

National Provider Identifier

1720077407

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mark Logan

Credential M.D.

Sex Male

Practice address 1401 Professional Blvd, Evansville, IN, 47714

Phone (812) 473-2060

Fax (812) 473-0763

Enumeration date Oct 17, 2005

Last updated in NPPES Jun 30, 2025

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 32870 (KY) Secondary

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 01046534A (IN) 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
000000045660	Other	KY	ANTHEM
000000045660	Other	IN	ANTHEM
040003023	Other	KY	RR MEDICARE
200149220A	Medicaid	IN	-
P00076697	Other	IN	RR MEDICARE
64328701	Medicaid	KY	-
064945	Other	IN	HEALTH ALLIANCE
394258	Other	IN	HEALTHLINK

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.

Read the full guide → Validate an NPI →

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 Logan?

Mark Logan is registered in NPPES with the primary taxonomy of Otolaryngology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-30.