Skip to main content

Dr. Lynellen Gregory, MD

Vascular Surgery (Vascular Surgery Physician)

  • Medicare participating

At a glance

Years since graduation
11
In the NPI registry since
2015
Medicare patients seen, 2024
310

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is

Education and training

  • 2015Medical school: Virginia Commonwealth University, School of Medicine
  • 2015Registered with an NPI (national billing number; not a license date)

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Vascular Surgery Physician primary
    NC license 2022-01932

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Vascular Surgery per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
310
Services billed
9,009
Patients’ average age
74
Most frequent Medicare services, 2023
ServiceTimesPatients
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml7,14554
Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes31357
Established patient office or other outpatient visit, 20-29 minutes297182
Infusion, normal saline solution, sterile (500 ml = 1 unit)18859
Review by radiologist of additional artery image17250
Ultrasound study of arm and leg arteries13886
New patient office or other outpatient visit, 45-59 minutes120120
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes11060
Established patient office or other outpatient visit, 10-19 minutes10184
Ultrasound of leg arteries or artery grafts9165

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Clopidogrel (clopidogrel bisulfate)
Other prescribers in Knoxville, TN
33
Xarelto (rivaroxaban)
Other prescribers in Knoxville, TN
17
Atorvastatin Calcium
Other prescribers in Knoxville, TN
11

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 9 companies reported 21 payments worth $469 in total to this clinician.

By company
Boston Scientific Corporation$217
Abiomed$37.73
Medtronic, Inc.$37.65
Cook Medical LLC$36.66
Bard Peripheral Vascular, Inc.$34.05
Smith+nephew, Inc.$30.68
Inari Medical, Inc.$30.10
Stryker Corporation$26.23
By type
Food and Beverage$469

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Tennessee →

Other Vascular Surgery clinicians in Knoxville

Sources

NPI registry (CMS NPPES, November 2026; record last updated July 25, 2022), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1124409461. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.