Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Allen Wallingford, MD

Internal Medicine Physician in Maysville, KY · enumerated 2006.

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

National Provider Identifier

1205919875

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Allen Wallingford

Credential MD

Sex Male

Practice address 2009 Old Main Street, Maysville, KY, 41056

Phone (606) 759-7615

Fax (606) 759-7821

Enumeration date Oct 24, 2006

Last updated in NPPES Jan 30, 2017

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 24430 (KY) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 24430 (KY) Secondary

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
64244304	Medicaid	KY	-

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

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 Mark Wallingford?

Mark Wallingford 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-30.