Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John B. Walker III, M.D.

Internal Medicine Physician in Burlington, NC · enumerated 2006.

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

National Provider Identifier

1700806650

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Registry record

Entity type Individual (Type 1)

Name Dr. John B. Walker III

Credential M.D.

Sex Male

Practice address 1234 Huffman Mill Rd, Burlington, NC, 27215

Phone (336) 538-1234

Fax (336) 538-2390

Enumeration date Jul 20, 2006

Last updated in NPPES Jan 31, 2013

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 20216 (NC) 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
8985328	Medicaid	NC	-

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 John Walker?

John Walker is registered in NPPES with the primary taxonomy of Internal Medicine 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 2013-01-31.