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Dr. Thomas Clayton Williamson JR., MD

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Specializes in: Medical Oncology, Adult Oncology and Adult Hematology

University of North Carolina at Chapel Hill School of Medicine (2014)

1227 North State Street #101
Jackson, MS 39202

(601) 355-2485

Dr. Thomas Clayton Williamson JR., MD is a medical oncologist in Jackson, MS specializing in medical oncology, adult oncology and adult hematology. He graduated from University of North Carolina at Chapel Hill School of Medicine in 2014 and has 11 years of experience. Dr. Thomas Clayton Williamson JR., MD is affiliated with Baptist Memorial Health Care, Merit Health and JACKSON ONCOLOGY ASSOCIATES.

Office Locations

Merit Health

1227 North State Street #101
Jackson, MS 39202

(601) 355-2485

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Noteworthy Medicare Patient Procedures Performed by Dr. Thomas Clayton Williamson JR., MD in 2023

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

Top 5%

By Affordability:

antineoplastic hormone therapy

In 2023, Dr. Thomas Clayton Williamson JR., MD had a list price for antineoplastic hormone therapy, hematocrit test, hemoglobin test, hormone therapy, and reticulocyte count (immature red blood cell count) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Mississippi. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 25%

By Volume:

blood tests

thyroid blood test

By Affordability:

inpatient hospital care

In 2013, among providers in related specialties within Mississippi, Dr. Thomas Clayton Williamson JR., MD performed more blood tests, and thyroid blood test procedures for Medicare patients than 75% of them and he also had a list price for antigen tests, blood count tests, hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 75% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Thomas Clayton Williamson JR., MD treated as a medical oncologist in Jackson, MS during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Thomas Clayton Williamson JR., MD for Medicare patients.

hospital care	23
inpatient care	23

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas Clayton Williamson JR., MD.

**Gender**
Male	17
Female	18

**Ethnicity**
Non-Hispanic White	12
Black	23
Hispanic	0
Asian	0
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Thomas Clayton Williamson JR., MD in 2017

The most common conditions of Medicare patients that Dr. Thomas Clayton Williamson JR., MD treated during 2017 were hypertension, chronic kidney disease, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	57
Depression	0
Chronic Kidney Disease	74
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	49
Chronic Obstructive Pulmonary Disease	34
Diabetes	49
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. Thomas Clayton Williamson JR., MD in 2018

The most common conditions of Medicare patients that Dr. Thomas Clayton Williamson JR., MD treated during 2018 were hypertension, chronic kidney disease and high cholesterol.

Hypertension	75
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	68
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

The top procedures that Dr. Thomas Clayton Williamson JR., MD treated as a medical oncologist in Jackson, MS during 2021 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas Clayton Williamson JR., MD for Medicare patients.

biological response modifier (BRM) therapy	179
blood draw	724
chemotherapy	179
doctor visit	699
hormone therapy	25
hospital care	137
inpatient care	137
lab tests	2215
minimally invasive procedures	236
thyroid function tests	34

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas Clayton Williamson JR., MD.

**Gender**
Male	255
Female	340

**Ethnicity**
Non-Hispanic White	444
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	234
From 75 to 84	231
85 and over	71
Less than 65	59

Conditions of Medicare patients treated by Dr. Thomas Clayton Williamson JR., MD in 2021

The most common conditions of Medicare patients that Dr. Thomas Clayton Williamson JR., MD treated during 2021 were hypertension, high cholesterol, cancer and chronic kidney disease.

Hypertension	75
High Cholesterol	58
Stroke	5
Ischemic Heart Disease	34
Depression	18
Chronic Kidney Disease	39
Asthma	6
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	19
Diabetes	35
Dementia	7
Cancer	45

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Thomas Clayton Williamson JR., MD treated as a medical oncologist in Jackson, MS during 2022 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas Clayton Williamson JR., MD for Medicare patients.

biological response modifier (BRM) therapy	398
blood draw	1529
chemotherapy	398
doctor visit	1539
hormone therapy	28
hospital care	358
inpatient care	358
lab tests	4704
minimally invasive procedures	564
port flush	22
thyroid function tests	101

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas Clayton Williamson JR., MD.

**Gender**
Male	354
Female	496

**Ethnicity**
Non-Hispanic White	654
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	356
From 75 to 84	333
85 and over	101
Less than 65	60

Conditions of Medicare patients treated by Dr. Thomas Clayton Williamson JR., MD in 2022

The most common conditions of Medicare patients that Dr. Thomas Clayton Williamson JR., MD treated during 2022 were hypertension, high cholesterol, cancer and diabetes.

Hypertension	75
High Cholesterol	70
Stroke	14
Ischemic Heart Disease	31
Depression	23
Chronic Kidney Disease	28
Asthma	7
Osteoperosis	14
Atrial Fibrilation	22
Heart Failure	19
Chronic Obstructive Pulmonary Disease	23
Diabetes	37
Dementia	7
Cancer	50

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Thomas Clayton Williamson JR., MD treated as a medical oncologist in Jackson, MS during 2023 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas Clayton Williamson JR., MD for Medicare patients.

biological response modifier (BRM) therapy	487
blood draw	1499
chemotherapy	487
doctor visit	1544
hormone therapy	43
hospital care	156
inpatient care	156
lab tests	4541
minimally invasive procedures	661
thyroid function tests	270

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas Clayton Williamson JR., MD.

**Gender**
Male	327
Female	497

**Ethnicity**
Non-Hispanic White	637
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	340
From 75 to 84	332
85 and over	93
Less than 65	59

Conditions of Medicare patients treated by Dr. Thomas Clayton Williamson JR., MD in 2023

The most common conditions of Medicare patients that Dr. Thomas Clayton Williamson JR., MD treated during 2023 were hypertension, high cholesterol, cancer and diabetes.

Hypertension	75
High Cholesterol	73
Stroke	14
Ischemic Heart Disease	31
Depression	25
Chronic Kidney Disease	30
Asthma	7
Osteoperosis	14
Atrial Fibrilation	21
Heart Failure	20
Chronic Obstructive Pulmonary Disease	24
Diabetes	36
Dementia	7
Cancer	52

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2017 - 2023

Volume of procedures performed by Dr. Thomas Clayton Williamson JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. Thomas Clayton Williamson JR., MD treated as a medical oncologist in Jackson, MS were lab tests, blood draw, minimally invasive procedures and chemotherapy.

biological response modifier (BRM) therapy	354
blood draw	1250
chemotherapy	354
doctor visit	1260
hormone therapy	32
hospital care	168
inpatient care	168
lab tests	3820
minimally invasive procedures	487
thyroid function tests	135

Average Medicare Patient Data From 2017 - 2023

Information about Medicare patients treated by Dr. Thomas Clayton Williamson JR., MD.

**Gender**
Male	190
Female	270

**Ethnicity**
Black / African American	4
Asian / Pacific Islander	0
Non-Hispanic White	349
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	179
85 and over	53
Less than 65	38
65 to 74	186

Average of Total of Conditions of Medicare patients treated by Dr. Thomas Clayton Williamson JR., MD From 2017 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Thomas Clayton Williamson JR., MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	75
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	30
Depression	13
Chronic Kidney Disease	47
Asthma	4
Osteoporosis	7
Heart Failure	21
Chronic Obstructive Pulmonary Disease	20
Diabetes	31
Atrial Fibrillation	11
Cancer	29
Dementia	4

Education & Training

Dr. Thomas Clayton Williamson JR., MD graduated from University of North Carolina at Chapel Hill School of Medicine in 2014. He completed residency at University of Mississippi Medical Center. He is certified by the American Board of Internal Medicine Internal Medicine American Board of Internal Medicine Medical Oncology American Board of Internal Medicine Internal Medicine American Board of Internal Medicine Medical Oncology and has a state license in Mississippi.

Medical School: University of North Carolina at Chapel Hill School of Medicine (2014)

Residency: University of Mississippi Medical Center

Board Certification: American Board of Internal Medicine Internal Medicine American Board of Internal Medicine Medical Oncology American Board of Internal Medicine Internal Medicine American Board of Internal Medicine Medical Oncology

Licensed In: Mississippi

Affiliations & Hospitals

Dr. Thomas Clayton Williamson JR., MD is associated with these hospitals and organizations:

Baptist Memorial Health Care

Merit Health

JACKSON ONCOLOGY ASSOCIATES

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General Payments

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

**Payments by Company**
Pfizer Inc.	$746 ELIQUIS $322	PAXLOVID $127	TALZENNA $83	LORBRENA $42	ORGOVYX $32	Other $139
Genentech USA, Inc.	$467 Venclexta $320	POLIVY $84	Phesgo $27	$36
Merck Sharp & Dohme LLC	$443 KEYTRUDA $222	LYNPARZA $179	WELIREG $41
Novartis Pharmaceuticals Corporation	$401 PLUVICTO $98	MEKINIST $54	Lutathera $48	FEMARA $45	KISQALI $37	Other $119
Daiichi Sankyo Inc.	$390 Enhertu $305	Injectafer $85
Other	$4,670 Reblozyl $247	JAKAFI $210	BRUKINSA $185	OPDIVO $185	QINLOCK $158	Other $3,686

**Types of Payments**
Food and Beverage	$6,811
Education	$306

Research Payments

Dr. Thomas Clayton Williamson JR., MD has received 8 research payments totaling $161,460.

Biography

Dr. Thomas Williamson sees patients in Jackson, MS. His medical specialties are adult hematology, adult oncology, and medical oncology. Before performing his residency at the University of Mississippi Medical Center, Dr. Williamson attended the University of North Carolina at Chapel Hill School of Medicine. Dr. Williamson is affiliated with Merit Health and Baptist Memorial Health Care.