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Dr. Jon D. Thornton, MD, PhD

(Dr. Jon David Thornton, MD)

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Specializes in: Adult Nephrology

University of South Alabama College of Medicine

Professional interests include: dialysis

15 Covington Ridge Place
Collins, MS 39428

(601) 765-2711

Dr. Jon D. Thornton, MD, PhD is a nephrologist in Bay Springs, MS specializing in adult nephrology. He graduated from University of South Alabama College of Medicine. Dr. Jon D. Thornton, MD, PhD is affiliated with Hattiesburg Clinic, Merit Health and HATTIESBURG CLINIC PA.

Office Locations

Hattiesburg Clinic

14 Bay Avenue
Bay Springs, MS 39422

(601) 764-6427

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Hattiesburg Clinic

15 Covington Ridge Place
Collins, MS 39428

(601) 765-2711

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Hattiesburg Clinic

1527 Larry Drive
Laurel, MS 39440

(601) 425-1853

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Hattiesburg Clinic

180 E. Main Street
Pachuta, MS 39347

(601) 776-0973

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Hattiesburg Clinic

1835 Cooper Road
Picayune, MS 39466

(601) 798-8951

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Hattiesburg Clinic

21 Emu Avenue
Silver Creek, MS 39663

(601) 886-0072

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Hattiesburg Clinic

303 Red Bud Avenue
Richton, MS 39476

(601) 788-2555

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Merit Health

415 South 28th Avenue
Hattiesburg, MS 39401

(601) 268-5700

(601) 268-5777

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Hattiesburg Clinic

4820 Plaza Drive
Tylertown, MS 39667

(601) 222-0311

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Hattiesburg Clinic

5001 Hardy Street
Hattiesburg, MS 39402

(601) 268-8000

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Hattiesburg Clinic

503 First Street
Wiggins, MS 39577

(601) 928-2999

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Hattiesburg Clinic

5909 Highway 49 Suite 10
Hattiesburg, MS 39402

(601) 296-2963

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Hattiesburg Clinic

6051 Highway 49
Hattiesburg, MS 39401

(601) 288-4384

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Hattiesburg Clinic

6855 Lincoln Rd. Extension Suite 60
Hattiesburg, MS 39402

(601) 261-3024

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Hattiesburg Clinic

967 Matthew Drive
Waynesboro, MS 39367

(601) 735-5858

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Hattiesburg Clinic

Highway 98 Bypass
Columbia, MS 39429

(601) 731-1234

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Some issues Dr. Jon D. Thornton, MD, PhD can help you with:

Dialysis

Dialysis is a procedure that replicates renal (kidney) function by filtering patients' blood. When kidneys do not work properly, waste can accumulate in the blood and unbalanced chemicals can impair the body's critical functions. In order to stay healthy, a person without proper kidney function must receive dialysis. There are two forms of dialysis treatment: hemodialysis and peritoneal dialysis. Both forms of dialysis are recurring treatments that in many cases last throughout the lifetime of the affected patient. Patients who briefly lose renal function may slowly reduce the frequency of dialysis sessions until their kidneys recover. However, most patients who start on dialysis remain on dialysis for the rest of their lives or until they receive a kidney transplant.

A number of conditions can worsen renal function and lead to end-stage or acute kidney failure. When kidneys fail (i.e. nearly 90 percent of their function is lost), dialysis is typically prescribed. Conditions that cause chronic kidney failure (eventually requiring dialysis) include:

Type 1 and 2 Diabetes
Pyelonephritis, recurring kidney infection
Glomerulonephritis, inflammation of the kidney's filtering parts
Polycystic kidney disease
Interstitial nephritis, inflammation of the kidney's tubules
High blood pressure
Vesicoureteral reflux, improper bladder emptying

For hemodialysis (the more common form of dialysis), a patient will visit a hospital or clinic and be connected to a dialysis machine by a needle attached to a tube that draws blood from the arm. The drawn blood is transferred to the dialysis machine, where it is filtered and separated until clean. Waste products from the blood pass into a fluid called dialysate, which is pumped out of the machine into a waste receptacle. The machine also measures and helps ensure the blood has the appropriate level of fluid, electrolytes, and pH. A tube delivers the cleaned blood back into the patient's body. A dialysis session like this will typically last for three to four hours, with a patient undergoing dialysis around three times per week.

A second method of dialysis is known as peritoneal dialysis. Unlike hemodialysis, peritoneal dialysis can be performed at home by oneself after an initial surgery. To start, a physician (generally a surgeon) will make a small incision in the lower abdomen and insert and surgically attach a catheter (thin tube). At home, the patient connects a pump to the abdomen catheter, delivering dialysate (dialysis fluid) from a bag hanging on a wheeled stand. This fluid enters the peritoneal cavity (greater abdomen area containing the stomach, liver, and intestines) and collects waste through osmosis, where waste in the blood moves across a membrane and into the dialysate. This process continues for several hours until the fluid concentration is equal between the blood and dialysate, at which point the fluid can be drained. The fluid can then be passed through a machine called a cycler, which removes waste and allows for the dialysate to be reused. This process is repeated about four times per day. Dialysis patients must limit the amount of fluid they consume prior to receiving dialysis and should also avoid eating salty foods. The cycler cannot filter more than a certain amount of waste products from the blood.

Kidneys are important organs, and dialysis treatments are vital for those with renal dysfunction. For many, dialysis is not so much a medical procedure but a part of their normal life.

Noteworthy Medicare Patient Procedures Performed by Dr. Jon D. Thornton, MD, PhD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 10%

By Volume:

dialysis

In 2023, Dr. Jon D. Thornton, MD, PhD performed more dialysis procedures for Medicare patients than 90% of providers in related specialties within Mississippi.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Jon D. Thornton, MD, PhD treated as a nephrologist in Bay Springs, MS during 2012 were dialysis, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Jon D. Thornton, MD, PhD for Medicare patients.

blood draw	90
dialysis	647
doctor visit	406
hospital care	353
inpatient care	353

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Jon D. Thornton, MD, PhD treated as a nephrologist in Bay Springs, MS during 2013 were dialysis, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Jon D. Thornton, MD, PhD for Medicare patients.

blood draw	123
dialysis	557
doctor visit	337
hospital care	323
inpatient care	323

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Jon D. Thornton, MD, PhD.

**Gender**
Male	499
Female	535

**Ethnicity**
Non-Hispanic White	445
Black	570
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	308
From 75 to 84	207
85 and over	60
Less than 65	459

Conditions of Medicare patients treated by Dr. Jon D. Thornton, MD, PhD in 2013

Hypertension	75
High Cholesterol	47
Stroke	7
Ischemic Heart Disease	62
Depression	25
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	4
Atrial Fibrilation	15
Heart Failure	54
Chronic Obstructive Pulmonary Disease	27
Diabetes	67
Dementia	15
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Jon D. Thornton, MD, PhD treated as a nephrologist in Bay Springs, MS during 2014 were dialysis, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Jon D. Thornton, MD, PhD for Medicare patients.

blood draw	100
dialysis	684
doctor visit	346
hospital care	343
inpatient care	343

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Jon D. Thornton, MD, PhD.

**Gender**
Male	503
Female	538

**Ethnicity**
Non-Hispanic White	441
Black	579
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	326
From 75 to 84	201
85 and over	73
Less than 65	441

Conditions of Medicare patients treated by Dr. Jon D. Thornton, MD, PhD in 2014

Hypertension	75
High Cholesterol	43
Stroke	8
Ischemic Heart Disease	61
Depression	24
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	3
Atrial Fibrilation	13
Heart Failure	55
Chronic Obstructive Pulmonary Disease	28
Diabetes	67
Dementia	17
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Jon D. Thornton, MD, PhD treated as a nephrologist in Bay Springs, MS during 2015 were dialysis, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Jon D. Thornton, MD, PhD for Medicare patients.

blood draw	38
dialysis	511
doctor visit	315
hospital care	302
inpatient care	302

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Jon D. Thornton, MD, PhD.

**Gender**
Male	1008
Female	1036

**Ethnicity**
Non-Hispanic White	898
Black	1116
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	666
From 75 to 84	420
85 and over	118
Less than 65	840

Conditions of Medicare patients treated by Dr. Jon D. Thornton, MD, PhD in 2015

Hypertension	75
High Cholesterol	48
Stroke	8
Ischemic Heart Disease	59
Depression	26
Chronic Kidney Disease	75
Asthma	18
Osteoperosis	4
Atrial Fibrilation	15
Heart Failure	59
Chronic Obstructive Pulmonary Disease	27
Diabetes	68
Dementia	16
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Jon D. Thornton, MD, PhD treated as a nephrologist in Bay Springs, MS during 2016 were dialysis, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Jon D. Thornton, MD, PhD for Medicare patients.

blood draw	87
dialysis	591
doctor visit	349
hemofiltration	30
hospital care	296
inpatient care	296

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Jon D. Thornton, MD, PhD.

**Gender**
Male	510
Female	516

**Ethnicity**
Non-Hispanic White	449
Black	556
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	335
From 75 to 84	198
85 and over	63
Less than 65	430

Conditions of Medicare patients treated by Dr. Jon D. Thornton, MD, PhD in 2016

Hypertension	75
High Cholesterol	48
Stroke	7
Ischemic Heart Disease	60
Depression	27
Chronic Kidney Disease	75
Asthma	30
Osteoperosis	4
Atrial Fibrilation	16
Heart Failure	59
Chronic Obstructive Pulmonary Disease	29
Diabetes	68
Dementia	17
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Jon D. Thornton, MD, PhD treated as a nephrologist in Bay Springs, MS during 2017 were dialysis, hospital care, inpatient care and hemofiltration.

Volume of procedures performed by Dr. Jon D. Thornton, MD, PhD for Medicare patients.

blood draw	63
dialysis	516
doctor visit	298
hemofiltration	69
hospital care	298
inpatient care	298

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Jon D. Thornton, MD, PhD.

**Gender**
Male	494
Female	487

**Ethnicity**
Non-Hispanic White	408
Black	556
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	306
From 75 to 84	196
85 and over	57
Less than 65	422

Conditions of Medicare patients treated by Dr. Jon D. Thornton, MD, PhD in 2017

Hypertension	75
High Cholesterol	46
Stroke	7
Ischemic Heart Disease	62
Depression	31
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	5
Atrial Fibrilation	15
Heart Failure	60
Chronic Obstructive Pulmonary Disease	30
Diabetes	71
Dementia	17
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Jon D. Thornton, MD, PhD treated as a nephrologist in Bay Springs, MS during 2018 were dialysis, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Jon D. Thornton, MD, PhD for Medicare patients.

blood draw	77
dialysis	390
doctor visit	355
hemofiltration	45
hospital care	263
inpatient care	263

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Jon D. Thornton, MD, PhD.

**Gender**
Male	476
Female	484

**Ethnicity**
Non-Hispanic White	425
Black	518
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	300
From 75 to 84	206
85 and over	44
Less than 65	410

Conditions of Medicare patients treated by Dr. Jon D. Thornton, MD, PhD in 2018

Hypertension	75
High Cholesterol	56
Stroke	8
Ischemic Heart Disease	63
Depression	33
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	6
Atrial Fibrilation	17
Heart Failure	64
Chronic Obstructive Pulmonary Disease	32
Diabetes	72
Dementia	18
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Jon D. Thornton, MD, PhD treated as a nephrologist in Bay Springs, MS during 2019 were dialysis, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Jon D. Thornton, MD, PhD for Medicare patients.

blood draw	62
dialysis	487
doctor visit	306
hemofiltration	54
hospital care	336
inpatient care	336

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Jon D. Thornton, MD, PhD.

**Gender**
Male	570
Female	502

**Ethnicity**
Non-Hispanic White	443
Black	605
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	328
From 75 to 84	211
85 and over	50
Less than 65	483

Conditions of Medicare patients treated by Dr. Jon D. Thornton, MD, PhD in 2019

Hypertension	75
High Cholesterol	54
Stroke	8
Ischemic Heart Disease	63
Depression	32
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	5
Atrial Fibrilation	14
Heart Failure	65
Chronic Obstructive Pulmonary Disease	31
Diabetes	72
Dementia	18
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Jon D. Thornton, MD, PhD treated as a nephrologist in Bay Springs, MS during 2020 were dialysis, hospital care, inpatient care and hemofiltration.

Volume of procedures performed by Dr. Jon D. Thornton, MD, PhD for Medicare patients.

blood draw	67
dialysis	745
doctor visit	160
hemofiltration	155
hospital care	592
inpatient care	592

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Jon D. Thornton, MD, PhD.

**Gender**
Male	402
Female	390

**Ethnicity**
Non-Hispanic White	354
Black	420
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	282
From 75 to 84	170
85 and over	39
Less than 65	301

Conditions of Medicare patients treated by Dr. Jon D. Thornton, MD, PhD in 2020

Hypertension	75
High Cholesterol	61
Stroke	9
Ischemic Heart Disease	66
Depression	33
Chronic Kidney Disease	75
Asthma	12
Osteoperosis	5
Atrial Fibrilation	18
Heart Failure	68
Chronic Obstructive Pulmonary Disease	30
Diabetes	73
Dementia	20
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Jon D. Thornton, MD, PhD treated as a nephrologist in Bay Springs, MS during 2021 were dialysis, hospital care, inpatient care and hemofiltration.

Volume of procedures performed by Dr. Jon D. Thornton, MD, PhD for Medicare patients.

blood draw	81
dialysis	483
doctor visit	121
hemofiltration	98
hospital care	430
inpatient care	430

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Jon D. Thornton, MD, PhD.

**Gender**
Male	463
Female	422

**Ethnicity**
Non-Hispanic White	389
Black	467
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	306
From 75 to 84	173
85 and over	39
Less than 65	367

Conditions of Medicare patients treated by Dr. Jon D. Thornton, MD, PhD in 2021

Hypertension	75
High Cholesterol	58
Stroke	8
Ischemic Heart Disease	64
Depression	29
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	3
Atrial Fibrilation	15
Heart Failure	68
Chronic Obstructive Pulmonary Disease	27
Diabetes	70
Dementia	18
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Jon D. Thornton, MD, PhD treated as a nephrologist in Bay Springs, MS during 2022 were hospital care, inpatient care, dialysis and blood draw.

Volume of procedures performed by Dr. Jon D. Thornton, MD, PhD for Medicare patients.

blood draw	81
dialysis	323
doctor visit	189
hemofiltration	53
hospital care	335
inpatient care	335

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Jon D. Thornton, MD, PhD.

**Gender**
Male	363
Female	334

**Ethnicity**
Non-Hispanic White	329
Black	345
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	211
From 75 to 84	159
85 and over	42
Less than 65	285

Conditions of Medicare patients treated by Dr. Jon D. Thornton, MD, PhD in 2022

Hypertension	75
High Cholesterol	72
Stroke	13
Ischemic Heart Disease	54
Depression	35
Chronic Kidney Disease	75
Asthma	14
Osteoperosis	6
Atrial Fibrilation	30
Heart Failure	61
Chronic Obstructive Pulmonary Disease	32
Diabetes	68
Dementia	15
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Jon D. Thornton, MD, PhD for Medicare patients.

The highest averages for the top procedures that Dr. Jon D. Thornton, MD, PhD treated as a nephrologist in Bay Springs, MS were dialysis, hospital care, inpatient care and blood draw.

blood draw	79
dialysis	539
doctor visit	289
hemofiltration	72
hospital care	351
inpatient care	351

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Jon D. Thornton, MD, PhD.

**Gender**
Male	480
Female	476

**Ethnicity**
Black / African American	521
Asian / Pacific Islander	0
Non-Hispanic White	416
Native American / Alaskan Native	0
Hispanic	1
Other	0

**Age**
75 to 84	194
85 and over	53
Less than 65	403
65 to 74	306

Average of Total of Conditions of Medicare patients treated by Dr. Jon D. Thornton, MD, PhD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Jon D. Thornton, MD, PhD treated were chronic kidney disease, hypertension, diabetes and heart failure.

Hypertension	68
High Cholesterol	48
Stroke	7
Ischemic Heart Disease	55
Depression	26
Chronic Kidney Disease	68
Asthma	12
Osteoporosis	4
Heart Failure	55
Chronic Obstructive Pulmonary Disease	26
Diabetes	63
Atrial Fibrillation	15
Dementia	15
Cancer	9

Education & Training

Dr. Jon D. Thornton, MD, PhD graduated from University of South Alabama College of Medicine. He completed residency at Medical University of South Carolina Affiliated Hospitals. He is certified by the American Board of Internal Medicine Nephrology, Internal Medicine and has a state license in Mississippi.

Medical School: University of South Alabama College of Medicine

Residency: Medical University of South Carolina Affiliated Hospitals

Board Certification: American Board of Internal Medicine Nephrology, Internal Medicine

Licensed In: Mississippi

Affiliations & Hospitals

Dr. Jon D. Thornton, MD, PhD is associated with these hospitals and organizations:

Hattiesburg Clinic

Merit Health

HATTIESBURG CLINIC PA

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Jon D. Thornton, MD, PhD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Keryx Biopharmaceuticals, Inc.	$15 Auryxia $15
Bayer HealthCare Pharmaceuticals Inc.	$13 Kerendia $13

**Types of Payments**
Gift	$15
Food and Beverage	$13

Biography

Dr. Jon Thornton's area of specialization is adult nephrology. Areas of particular interest for Dr. Thornton include dialysis. Dr. Thornton's hospital/clinic affiliations include Hattiesburg Clinic and Merit Health. He studied medicine at the University of South Alabama College of Medicine. His residency was performed at a hospital affiliated with Medical University of South Carolina.