Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Donald Dee Horton, M.D.

Specialist in Oklahoma City, OK · enumerated 2005.

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

National Provider Identifier

1275523920

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Registry record

Entity type Individual (Type 1)

Name Dr. Donald Dee Horton

Credential M.D.

Sex Male

Practice address 14100 Parkway Commons Dr, Suite 201, Oklahoma City, OK, 73134

Phone (405) 242-4720

Fax (405) 242-4724

Enumeration date Oct 25, 2005

Last updated in NPPES Sep 25, 2013

Taxonomy & licenses

174400000X Specialist Other Service Providers · License OK14763 (OK) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Donald Horton?

Donald Horton is registered in NPPES with the primary taxonomy of Specialist. 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 2013-09-25.