Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark S Deguenther, M.D.

Urology Physician in Homewood, AL · enumerated 2006 · practices at Urology Centers of Alabama PC.

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

National Provider Identifier

1609849488

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark S Deguenther

Credential M.D.

Sex Male

Practice address 3485 Independence Dr, Homewood, AL, 35209

Phone (205) 930-0920

Fax (205) 445-0115

Enumeration date Feb 10, 2006

Last updated in NPPES Nov 24, 2014

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 00018730 (AL) 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
2308260001	Other	AL	CIGNA
000025361	Medicaid	AL	-
E84894	Other	AL	VIVA
000025361	Other	AL	MEDICARE PTAN
1910105	Other	AL	UNITED HEALTHCARE
D815	Other	AL	MEDICARE GROUP PIN
E84894	Other	AL	HEALTH SPRINGS
0366100001	Other	AL	MC NSC
5375053	Other	AL	AETNA
0366100001	Other	AL	CIGNA GOVERNMENT SERVICES PTAN

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 Deguenther?

Mark Deguenther 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 2014-11-24.