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Mark S Lyell, MD

Urology Physician in Ocean Springs, MS · enumerated 2006.

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

National Provider Identifier

1407861776

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Registry record

Entity type Individual (Type 1)
Name Mark S Lyell
Credential MD
Sex Male
Practice address 1153 Ocean Springs Rd, Ocean Springs, MS, 39564
Phone (228) 819-8586
Fax (251) 433-1917
Enumeration date Jul 29, 2006
Last updated in NPPES May 22, 2025

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 13231 (MS) 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
00119318 Medicaid MS -
10980353 Other MS CAQH
340018613 Other MS RAILROAD MEDICARE

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

What specialty is Mark Lyell?
Mark Lyell is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-22.