Quick answers
- Which hospitals does Marcia V. Williams-Lyons work at?
- Medicare's official clinician data lists Marcia V. Williams-Lyons at 5 hospitals: Claiborne Medical Center, Lafollette Medical Center, Parkwest Medical Center, Physicians Regional Medical Center and Tennova Healthcare - Newport Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marcia V. Williams-Lyons see patients?
- Medicare's clinician data lists 2 practice locations, including Powell, TN and Knoxville, TN. Call before your visit to confirm the address.
- What is Marcia V. Williams-Lyons's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Marcia V. Williams-Lyons accept Medicare assignment?
- Yes. Medicare's clinician data says Marcia V. Williams-Lyons 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.
- Does Marcia V. Williams-Lyons offer telehealth?
- Medicare's clinician data says Marcia V. Williams-Lyons offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Marcia V. Williams-Lyons?
- (865) 693-5450, as listed in official Medicare / NPI Registry data.
- What is Marcia V. Williams-Lyons's NPI number?
- 1043400526. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marcia V. Williams-Lyons works
Medicare's Facility Affiliation Data lists Marcia V. Williams-Lyons at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Claiborne Medical CenterTazewell, TN · Acute Care Hospital · CCN 440057
- Lafollette Medical CenterLa Follette, TN · Acute Care Hospital · CCN 440033
- Parkwest Medical CenterKnoxville, TN · Acute Care Hospital · CCN 440173
- Physicians Regional Medical CenterPowell, TN · Acute Care Hospital · CCN 440120
- Tennova Healthcare - Newport Medical CenterNewport, TN · Acute Care Hospital · CCN 440153
Practice locations
Addresses where Marcia V. Williams-Lyons is enrolled with Medicare (CMS data updated 2026-10-02).
- 7650 Dannaher Dr, Suite 200Powell, TN 37849
- 9314 Parkwest Blvd, Suite 300Knoxville, TN 37923 (865) 693‑5450
Group practices
Medicare enrollment lists Marcia V. Williams-Lyons as a member of this group (CMS data updated 2026-10-02).
- Renal Medical Associates PC7 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Tennessee
Clinicians with the same Medicare primary specialty in Tennessee — not a recommendation.
Clinician information
| Medical school | Rowan University School Of Osteopathic Medicine |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1043400526 |
| 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