Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Oliver H Harper, MD

Internal Medicine Physician in Warrior, AL · enumerated 2005.

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

National Provider Identifier

1366443442

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Registry record

Entity type Individual (Type 1)

Name Oliver H Harper

Credential MD

Sex Male

Practice address 100 Dana Rd, Warrior Medical Associates PC, Warrior, AL, 35180

Phone (205) 647-6333

Fax (205) 647-8666

Enumeration date Aug 10, 2005

Last updated in NPPES Apr 16, 2019

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 8090 (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
051505816	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

How do I verify Oliver Harper's NPI record?

Cross-check NPI 1366443442 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1366443442 active?

Yes, as of the latest NPPES snapshot, NPI 1366443442 is active (record last updated 2019-04-16).

Other providers at this practice address

Browse all →

Christopher Harper Internal Medicine Physician · Warrior, AL NPI 1770575854 Leslie Blaylock Family Nurse Practitioner · Warrior, AL NPI 1386100543

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-16.