Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Wathen, MD

Clinical Cardiac Electrophysiology Physician in Cookeville, TN · enumerated 2006 · practices at Tennessee Heart Pllc.

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

National Provider Identifier

1104925536

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Registry record

Entity type Individual (Type 1)

Name Mark Wathen

Credential MD

Sex Male

Practice address 228 W 4th St, Suite 200, Cookeville, TN, 38501

Phone (931) 372-0405

Fax (931) 372-0463

Enumeration date Sep 22, 2006

Last updated in NPPES Jun 17, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 23921 (TN) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 23921 (TN) Secondary

207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License 23921 (TN) 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
4288686	Other	TN	BCBS
1509597	Medicaid	TN	-

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 Mark Wathen?

Mark Wathen is registered in NPPES with the primary taxonomy of Clinical Cardiac Electrophysiology 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 2022-06-17.