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

Dr. Louis Keith Guinn, MD

Family Medicine Physician in Butler, AL · enumerated 2006.

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

National Provider Identifier

1487739314

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Registry record

Entity type Individual (Type 1)

Name Dr. Louis Keith Guinn

Credential MD

Sex Male

Practice address Butler, AL, 36904

Phone (205) 459-4499

Fax (205) 459-5348

Enumeration date Oct 26, 2006

Last updated in NPPES Jul 9, 2007

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 13769 (AL) Primary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 17028 (MS) Secondary

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
83614	Other	AL	BCBS PROVIDER NUMBER
000083614	Medicaid	AL	-

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

What specialty is Louis Guinn?

Louis Guinn is registered in NPPES with the primary taxonomy of Family Medicine 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.

Other providers at this practice address

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Louis K Guinn MD Family Medicine Physician · Butler, AL NPI 1639361678 Physicians Care of Clarke Federally Qualified Health Center (FQHC) · Butler, AL NPI 1801502265

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.