Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander Duncan, MD

Clinical Pathology/Laboratory Medicine Physician in Atlanta, GA · enumerated 2006.

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

National Provider Identifier

1902864846

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Registry record

Entity type Individual (Type 1)

Name Alexander Duncan

Credential MD

Sex Male

Practice address 1364 Clifton Rd Ne, Room F145, Atlanta, GA, 30322

Phone (404) 712-7294

Fax (404) 712-4632

Enumeration date May 2, 2006

Last updated in NPPES Aug 11, 2008

Taxonomy & licenses

207ZP0105X Clinical Pathology/Laboratory Medicine Physician Allopathic & Osteopathic Physicians · License 027049 (GA) Primary

207ZB0001X Blood Banking & Transfusion Medicine Physician Allopathic & Osteopathic Physicians · License 027049 (GA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 027049 (GA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 is the NPI number for Alexander Duncan?

The National Provider Identifier (NPI) for Alexander Duncan is 1902864846, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexander Duncan practice?

The practice location on file with NPPES is in Atlanta, GA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-11.