Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Daniel W Mackey, MD

Hematology & Oncology Physician in Fort Smith, AR · enumerated 2006.

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

National Provider Identifier

1407877947

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Registry record

Entity type Individual (Type 1)

Name Dr. Daniel W Mackey

Credential MD

Sex Male

Practice address 7301 Rogers Ave, Fort Smith, AR, 72903

Phone (479) 274-6200

Fax (479) 274-6299

Enumeration date Jul 21, 2006

Last updated in NPPES Aug 31, 2015

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License E-3603 (AR) 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
149462001	Medicaid	AR	-
900004395	Other	-	RR 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

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.

What specialty is Daniel Mackey?

Daniel Mackey is registered in NPPES with the primary taxonomy of Hematology & Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-08-31.