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Dr. John L. Jefferies JR., M.D.

Heart Failure & Transplant Cardiology (Advanced Heart Failure and Transplant Cardiology Physician)

At a glance

Years since graduation
30
In the NPI registry since
2006

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. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1996Medical school: University of Tennessee, Hsc, College of Medicine
  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

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

  • Advanced Heart Failure and Transplant Cardiology Physician primary
    TN license 57888
  • Cardiovascular Disease Physician
    MS license 26120 · OH license 35096072 · TN license 57888
  • Pediatric Cardiology Physician
    KY license 33376 · MN license 60245 · MS license 26120 · OH license 35.096072 · TN license 57888

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

Map: Heart Failure & Transplant Cardiology 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.

Payments from drug and device companies

In 2025, 10 companies reported 35 payments worth $55,385 in total to this clinician.

By company
Nuwellis, Inc.$30,000
Amicus Therapeutics, Inc.$8,760
Ns Pharma, Inc.$6,305
Genzyme Corporation$5,041
Myocardial Solutions, Inc.$5,000
Daxor Corporation$116
Vivaquant Inc, DBA Rhythm Express$64.00
Elucent Medical$41.89
By type
Compensation for services other than consulting (speaking, faculty)$34,008
Consulting Fee$10,128
Travel and Lodging$6,617
Honoraria$4,056
Food and Beverage$552
Education$23.10

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Mar 5, 2025Amicus Therapeutics, Inc.
Mar 5, 2025
Consulting Fee
GALAFOLD · FABRY DISEASE
$5,128
May 13, 2025Myocardial Solutions, Inc.
May 13, 2025
Consulting Fee$5,000
Apr 11, 2025Nuwellis, Inc.
Apr 11, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$4,900
Nov 7, 2025Genzyme Corporation
Nov 7, 2025
Compensation for services other than consulting (speaking, faculty)$4,008
May 30, 2025Nuwellis, Inc.
May 30, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$4,000
Jan 17, 2025Nuwellis, Inc.
Jan 17, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$3,600
Mar 21, 2025Nuwellis, Inc.
Mar 21, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$3,600
Jun 13, 2025Nuwellis, Inc.
Jun 13, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$3,200
Mar 5, 2025Amicus Therapeutics, Inc.
Mar 5, 2025
Travel and Lodging
GALAFOLD · FABRY DISEASE · travel to San Diego, CA
$2,196
Mar 6, 2025Ns Pharma, Inc.
Mar 6, 2025
Honoraria
VILTEPSO · PEDIATRIC NEUROLOGY
$2,184
All 26 payments other than meals, newest first
All payments other than meals
DateCompanyWhat it was forAmount
Dec 5, 2025Nuwellis, Inc.
Dec 5, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$1,300
Nov 7, 2025Genzyme Corporation
Nov 7, 2025
Compensation for services other than consulting (speaking, faculty)$4,008
Nov 7, 2025Genzyme Corporation
Nov 7, 2025
Travel and Lodging
travel to New Orleans, LA
$765
Oct 24, 2025Nuwellis, Inc.
Oct 24, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$1,900
Sep 26, 2025Nuwellis, Inc.
Sep 26, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$2,000
Aug 22, 2025Nuwellis, Inc.
Aug 22, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$1,700
Aug 8, 2025Ns Pharma, Inc.
Aug 8, 2025
Travel and Lodging
VILTEPSO · PEDIATRIC NEUROLOGY · travel to MIAMI, FL
$830
Jul 18, 2025Nuwellis, Inc.
Jul 18, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$2,000
Jun 18, 2025Ns Pharma, Inc.
Jun 18, 2025
Honoraria
VILTEPSO · PEDIATRIC NEUROLOGY
$624
Jun 13, 2025Nuwellis, Inc.
Jun 13, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$3,200
May 30, 2025Nuwellis, Inc.
May 30, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$4,000
May 28, 2025Ns Pharma, Inc.
May 28, 2025
Honoraria
VILTEPSO · PEDIATRIC NEUROLOGY
$624
May 13, 2025Myocardial Solutions, Inc.
May 13, 2025
Consulting Fee$5,000
May 8, 2025Ns Pharma, Inc.
May 8, 2025
Honoraria
VILTEPSO · PEDIATRIC NEUROLOGY
$624
Apr 11, 2025Nuwellis, Inc.
Apr 11, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$4,900
Mar 21, 2025Nuwellis, Inc.
Mar 21, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$3,600
Mar 17, 2025Mallinckrodt Hospital Products Inc.
Mar 17, 2025
Education
TERLIVAZ · CRITICAL CARE · in-kind
Company’s descriptionRelevant medical textbook or clinical reprint
$23.10
Mar 6, 2025Ns Pharma, Inc.
Mar 6, 2025
Honoraria
VILTEPSO · PEDIATRIC NEUROLOGY
$2,184
Mar 5, 2025Amicus Therapeutics, Inc.
Mar 5, 2025
Consulting Fee
GALAFOLD · FABRY DISEASE
$5,128
Mar 5, 2025Amicus Therapeutics, Inc.
Mar 5, 2025
Travel and Lodging
GALAFOLD · FABRY DISEASE · travel to San Diego, CA
$2,196
Feb 28, 2025Nuwellis, Inc.
Feb 28, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$1,800
Feb 25, 2025Ns Pharma, Inc.
Feb 25, 2025
Travel and Lodging
VILTEPSO · PEDIATRIC NEUROLOGY · travel to GULF BREEZE, FL
$711
Feb 25, 2025Ns Pharma, Inc.
Feb 25, 2025
Travel and Lodging
VILTEPSO · PEDIATRIC NEUROLOGY · travel to GULF BREEZE, FL
$679
Feb 2, 2025Amicus Therapeutics, Inc.
Feb 2, 2025
Travel and Lodging
travel to San Diego, CA
$725
Feb 2, 2025Amicus Therapeutics, Inc.
Feb 2, 2025
Travel and Lodging
travel to San Diego, CA
$710
Jan 17, 2025Nuwellis, Inc.
Jan 17, 2025
Compensation for services other than consulting (speaking, faculty)
Aquadex Smartflow Console · Cardiology
$3,600

Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.

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 Heart Failure & Transplant Cardiology clinicians in Memphis

Sources

NPI registry (CMS NPPES, November 2026; record last updated December 1, 2025), 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 1619920469. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.