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

Mrs. Alexis Marcus-Atkinson

Hospitalist Physician in Jacksonville, FL · enumerated 2025.

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

National Provider Identifier

1104636596

Verified

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Registry record

Entity type Individual (Type 1)

Name Mrs. Alexis Marcus-Atkinson

Sex Female

Practice address Jacksonville, FL, 32221

Phone (904) 379-7155

Fax (904) 379-7165

Enumeration date Jan 9, 2025

Last updated in NPPES Apr 17, 2026

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

Taxonomy & licenses

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN11037045 (FL) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License APRN11037045 (FL) Primary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN11037045 (FL) Secondary

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 Alexis Marcus-Atkinson?

Alexis Marcus-Atkinson is registered in NPPES with the primary taxonomy of Hospitalist 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 2026-04-17.