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Nurse Practitioner

Marcy H. Williamson, NP

Sees patients in Knoxville, TN · Tennessee

Summary

Marcy H. Williamson, NP (Nurse Practitioner) is enrolled with Medicare at 1 practice location in Knoxville, TN. NPI 1366183923. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(865) 862‑0998 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Marcy H. Williamson, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

1Practice location
Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
5Years since medical school (graduated 2021)
FemaleGender (as listed)
Tennessee Cancer Specialists PLLCGroup practice

Quick answers

Where does Marcy H. Williamson see patients?
Medicare's clinician data lists 1 practice location in Knoxville, TN. Call before your visit to confirm the address.
What is Marcy H. Williamson's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Marcy H. Williamson accept Medicare assignment?
Yes. Medicare's clinician data says Marcy H. Williamson 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 Marcy H. Williamson?
(865) 862-0998, as listed in official Medicare / NPI Registry data.
What is Marcy H. Williamson's NPI number?
1366183923. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Marcy H. Williamson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Marcy H. Williamson as a member of this group (CMS data updated 2026-10-02).

  • Tennessee Cancer Specialists PLLC67 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Tennessee →

Other nurse practitioners in Knoxville

Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.

All nurse practitioners in Knoxville →

Clinician information

CredentialNP
Graduation year2021
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1366183923
CorrectionsReport 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

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians