Quick answers
- Which hospitals does William J. Mahlow work at?
- Medicare's official clinician data lists William J. Mahlow at 1 hospital: University Health System, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William J. Mahlow see patients?
- Medicare's clinician data lists 6 practice locations, including Knoxville, TN and Clinton, TN. Call before your visit to confirm the address.
- What is William J. Mahlow's specialty?
- Medicare lists Cardiac Electrophysiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does William J. Mahlow accept Medicare assignment?
- Yes. Medicare's clinician data says William J. Mahlow accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for William J. Mahlow?
- (865) 305-6333, as listed in official Medicare / NPI Registry data.
- What is William J. Mahlow's NPI number?
- 1205830171. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William J. Mahlow works
Medicare's Facility Affiliation Data lists William J. Mahlow at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- University Health System, IncKnoxville, TN · Acute Care Hospital · CCN 440015
Practice locations
Addresses where William J. Mahlow is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1924 Alcoa HwyKnoxville, TN 37920
- 1928 Alcoa Hwy, Suite B100Knoxville, TN 37920 (865) 305‑6333
- 1928 Alcoa Hwy 102Knoxville, TN 37920 (865) 305‑6640
- 1928 Alcoa Hwy S 102Knoxville, TN 37920 (865) 544‑6740
- 1940 Alcoa Hwy, Suite E310Knoxville, TN 37920 (865) 544‑2800
Group practices
Medicare enrollment lists William J. Mahlow as a member of this group (CMS data updated 2026-10-02).
- University Health System, Inc.522 clinicians in the group
Specialties
Other cardiac electrophysiologists in Knoxville
Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Johns Hopkins University School Of Medicine |
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205830171 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians