Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Jeremy Mahlow, MD

Clinical Cardiac Electrophysiology Physician in Knoxville, TN · enumerated 2005.

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

National Provider Identifier

1205830171

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Registry record

Entity type Individual (Type 1)

Name William Jeremy Mahlow

Credential MD

Sex Male

Practice address 1940 Alcoa Hwy, Suite E 310, Knoxville, TN, 37920

Phone (865) 544-2800

Fax (865) 544-6812

Enumeration date Jun 9, 2005

Last updated in NPPES Nov 14, 2016

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 36410 (TN) Secondary

174400000X Specialist Other Service Providers · License 36410 (TN) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 36410 (TN) Secondary

207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License 36410 (TN) 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.

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Frequently asked questions

Where does William Mahlow practice?

The practice location on file with NPPES is in Knoxville, TN. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for William Mahlow?

The National Provider Identifier (NPI) for William Mahlow is 1205830171, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-11-14.