Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > TN Providers > Pediatric Cardiologists

Dr. John Lynn Jefferies JR., MD

(No ratings)

Specializes in: Advanced Heart Failure and Transplant Cardiology, Pediatric Cardiology and Adult Cardiology

2050 Meadowview Parkway
Kingsport, TN 37660

(423) 230-5000

Dr. John Lynn Jefferies JR., MD is a cardiologist in Memphis, TN specializing in advanced heart failure and transplant cardiology, pediatric cardiology and adult cardiology.

Office Locations

1211 Union Avenue Suite 965
Memphis, TN 38104

open_in_new

2033 Meadowview Lane Suite 110
Kingsport, TN 37660

open_in_new

2050 Meadowview Parkway
Kingsport, TN 37660

(423) 230-5000

open_in_new

In The News

“"Once the patient is hospitalized for heart failure, the risk of death and rehospitalization goes up dramatically," Dr. John Jefferies, a board-certified cardiologist and chief medical officer for...”—"The confusing symptoms of heart failure you might be ignoring - including bendopnea", New York Post, September 2025

“Oak Ridge, TN, June 05, 2024 (GLOBE NEWSWIRE) -- Daxor Corporation (Nasdaq: DXR), the global leader in blood volume measurement technology, today announces the appointment of Dr. John L. Jefferies,...”—"Daxor Corporation Appoints John L. Jefferies, M.D. as Chief Medical Officer", Fox 5 San Diego, June 2024

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Volume of procedures performed by Dr. John Lynn Jefferies JR., MD for Medicare patients.

doctor visit	14

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. John Lynn Jefferies JR., MD for Medicare patients.

doctor visit	18

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Lynn Jefferies JR., MD.

**Gender**
Male	21
Female	13

Conditions of Medicare patients treated by Dr. John Lynn Jefferies JR., MD in 2013

Hypertension	53
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. John Lynn Jefferies JR., MD for Medicare patients.

doctor visit	14

Conditions of Medicare patients treated by Dr. John Lynn Jefferies JR., MD in 2014

Hypertension	50
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. John Lynn Jefferies JR., MD for Medicare patients.

doctor visit	20

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Dr. John Lynn Jefferies JR., MD for Medicare patients.

doctor visit	24

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Lynn Jefferies JR., MD.

**Gender**
Male	18
Female	13

Conditions of Medicare patients treated by Dr. John Lynn Jefferies JR., MD in 2016

Hypertension	35
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	35
Depression	0
Chronic Kidney Disease	42
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	45
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. John Lynn Jefferies JR., MD for Medicare patients.

doctor visit	11

Conditions of Medicare patients treated by Dr. John Lynn Jefferies JR., MD in 2017

Hypertension	52
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Lynn Jefferies JR., MD.

**Gender**
Male	11
Female	14

Conditions of Medicare patients treated by Dr. John Lynn Jefferies JR., MD in 2019

Hypertension	72
High Cholesterol	72
Stroke	0
Ischemic Heart Disease	52
Depression	0
Chronic Kidney Disease	48
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	44
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. John Lynn Jefferies JR., MD for Medicare patients.

doctor visit	20

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Lynn Jefferies JR., MD.

**Age**
From 65 to 74	15
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Lynn Jefferies JR., MD in 2020

Hypertension	69
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. John Lynn Jefferies JR., MD for Medicare patients.

doctor visit	43

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Lynn Jefferies JR., MD.

**Gender**
Male	19
Female	24

**Age**
From 65 to 74	16
From 75 to 84	0
85 and over	0
Less than 65	14

Conditions of Medicare patients treated by Dr. John Lynn Jefferies JR., MD in 2021

Hypertension	75
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	53
Depression	26
Chronic Kidney Disease	30
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	42
Chronic Obstructive Pulmonary Disease	0
Diabetes	35
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Lynn Jefferies JR., MD treated as a cardiologist in Memphis, TN during 2022 were stress testing and cardiac procedures.

Volume of procedures performed by Dr. John Lynn Jefferies JR., MD for Medicare patients.

cardiac procedures	62
doctor visit	22
stress testing	62

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Lynn Jefferies JR., MD.

**Gender**
Male	43
Female	49

**Ethnicity**
Non-Hispanic White	72
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	40
From 75 to 84	33
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Lynn Jefferies JR., MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	46
Depression	23
Chronic Kidney Disease	27
Asthma	13
Osteoperosis	12
Atrial Fibrilation	23
Heart Failure	33
Chronic Obstructive Pulmonary Disease	16
Diabetes	34
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John Lynn Jefferies JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. John Lynn Jefferies JR., MD treated as a cardiologist in Memphis, TN were stress testing and cardiac procedures.

cardiac procedures	62
doctor visit	20
stress testing	62

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John Lynn Jefferies JR., MD.

**Gender**
Male	11
Female	11

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	7
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	3
85 and over	0
Less than 65	1
65 to 74	7

Average of Total of Conditions of Medicare patients treated by Dr. John Lynn Jefferies JR., MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. John Lynn Jefferies JR., MD treated were hypertension, high cholesterol, ischemic heart disease and heart failure.

Hypertension	48
High Cholesterol	26
Stroke	1
Ischemic Heart Disease	18
Depression	4
Chronic Kidney Disease	14
Asthma	1
Osteoporosis	1
Heart Failure	16
Chronic Obstructive Pulmonary Disease	1
Diabetes	6
Atrial Fibrillation	2
Dementia	0
Cancer	1

Education & Training

He has a state license in Kentucky.

Licensed In: Kentucky

Ratings & Reviews

Dr. John Lynn Jefferies JR., MD does not have any reviews yet, be the first to leave a review of Dr. John Lynn Jefferies JR., MD here: Leave a Review

(No ratings)

Leave a Review

General Payments

These charts describe general payments received by Dr. John Lynn Jefferies JR., MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
GENZYME CORPORATION	$273,145 FABRAZYME $184,656	DISEASE STATE $23,791	NO PRODUCT DISCUSSED $21,683	$43,015
Nuwellis, Inc.	$251,796 AQUADEX SMARTFLOW CONSOLE $251,796
E.R. Squibb & Sons, L.L.C.	$61,552 CAMZYOS $34,279	$27,273
CHF Solutions, Inc	$33,677 Aquadex $33,677
Amicus Therapeutics, Inc.	$30,295 GALAFOLD $20,651	$9,644
Other	$123,777 VILTEPSO $16,416	BVA-100 $14,800	VYNDAQEL $12,520	XARELTO $11,728	ENTRESTO $8,220	Other $60,092

**Types of Payments**
Consulting Fee	$338,423
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$230,215
Honoraria	$90,922
Travel and Lodging	$73,780
Food and Beverage	$38,294
Other	$2,608

Research Payments

Dr. John Lynn Jefferies JR., MD has received 97 research payments totaling $763,971.

Biography

Dr. John Jefferies works as an adult cardiology, pediatric cardiology, and advanced heart failure and transplant cardiology specialist in Kingsport, TN and Memphis, TN. Dr. Jefferies has obtained a license to practice in Ohio.