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Dr. Gregory William Cotter, MD

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Specializes in: Radiation Oncology

133 Jeff Davis Boulevard
Natchez, MS 39120

(601) 442-1285

Dr. Gregory William Cotter, MD is a radiation oncologist in Natchez, MS specializing in radiation oncology.

Office Locations

133 Jeff Davis Boulevard
Natchez, MS 39120

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In The News (see more mentions in the news)

“Dr. Gregory Cotter, a radiation oncologist at Mary Bird Perkins Cancer Center in Natchez, said early detection of cancer continues to be the basic or best thing a person can do for themselves to...”—"Early detection and innovative treatments improve outcomes for today s...", The Natchez Democrat, October 2025

“NATCHEZ - Radiation oncologist Dr. Gregory Cotter, who arrived in Natchez in 2019 to work at Mary Bird Perkins Cancer Center, said much has been learned during his 44 years... NATCHEZ - Radiation...”—"RAISING AWARENESS: Natchez oncologist explains importance of screening...", The Natchez Democrat, October 2024

“NATCHEZ - Radiation oncologist Dr. Gregory Cotter, who arrived in Natchez in 2019 to work at Mary Bird Perkins Cancer Center, said much has been learned during his 44 years practicing medicine.”—"RAISING AWARENESS: Natchez oncologist explains importance of screenings - Mississippi's Best Community Newspaper", The Natchez Democrat, October 2024

Noteworthy Medicare Patient Procedures Performed by Dr. Gregory William Cotter, MD in 2024

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

Top 5%

By Affordability:

conventional external beam radiation therapy

external beam radiation therapy

In 2024, Dr. Gregory William Cotter, MD had a list price for conventional external beam radiation therapy, and external beam radiation therapy (EBRT) 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 10%

By Volume:

radiation therapy

In 2024, Dr. Gregory William Cotter, MD performed more radiation therapy procedures for Medicare patients than 90% of providers in related specialties within Mississippi.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	200

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory William Cotter, MD treated as a radiation oncologist in Natchez, MS during 2013 were radiation therapy, hospital care and inpatient care.

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	412
hospital care	11
inpatient care	11
radiation therapy	13

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	78
Female	62

**Ethnicity**
Non-Hispanic White	93
Black	47
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	44
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2013

Hypertension	75
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	44
Depression	19
Chronic Kidney Disease	30
Asthma	0
Osteoperosis	0
Atrial Fibrilation	10
Heart Failure	26
Chronic Obstructive Pulmonary Disease	36
Diabetes	34
Dementia	10
Cancer	75

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory William Cotter, MD treated as a radiation oncologist in Natchez, MS during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	350
hospital care	11
inpatient care	11

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	83
Female	77

**Ethnicity**
Non-Hispanic White	99
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	74
From 75 to 84	54
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2014

Hypertension	74
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	37
Depression	25
Chronic Kidney Disease	38
Asthma	0
Osteoperosis	0
Atrial Fibrilation	13
Heart Failure	25
Chronic Obstructive Pulmonary Disease	33
Diabetes	33
Dementia	9
Cancer	75

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory William Cotter, MD treated as a radiation oncologist in Natchez, MS during 2015 were hospital care, inpatient care and radiation therapy.

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	368
hospital care	21
inpatient care	21
radiation therapy	15

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	186
Female	176

**Ethnicity**
Non-Hispanic White	228
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	200
From 75 to 84	94
85 and over	22
Less than 65	46

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2015

Hypertension	75
High Cholesterol	54
Stroke	7
Ischemic Heart Disease	39
Depression	18
Chronic Kidney Disease	36
Asthma	18
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	34
Diabetes	38
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory William Cotter, MD treated as a radiation oncologist in Natchez, MS during 2016 were radiation therapy.

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	220
radiation therapy	12

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	64
Female	69

**Ethnicity**
Non-Hispanic White	83
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	70
From 75 to 84	40
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2016

Hypertension	75
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	37
Depression	20
Chronic Kidney Disease	30
Asthma	22
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	20
Chronic Obstructive Pulmonary Disease	25
Diabetes	34
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	30

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	18
Female	12

**Ethnicity**
Non-Hispanic White	30
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	12
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2017

Hypertension	75
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	43
Depression	37
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	60

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	13

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	19
Female	11

**Age**
From 65 to 74	0
From 75 to 84	13
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2018

Hypertension	70
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	47
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	75

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory William Cotter, MD treated as a radiation oncologist in Natchez, MS during 2019 were radiation therapy.

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	359
radiation therapy	297

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	53
Female	41

**Ethnicity**
Non-Hispanic White	0
Black	53
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	57
From 75 to 84	22
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2019

Hypertension	75
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	44
Depression	20
Chronic Kidney Disease	29
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	27
Chronic Obstructive Pulmonary Disease	15
Diabetes	35
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory William Cotter, MD treated as a radiation oncologist in Natchez, MS during 2020 were radiation therapy.

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	395
radiation therapy	453

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	53
Female	53

**Ethnicity**
Non-Hispanic White	56
Black	50
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	48
From 75 to 84	42
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2020

Hypertension	75
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	42
Depression	15
Chronic Kidney Disease	31
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	20
Chronic Obstructive Pulmonary Disease	18
Diabetes	36
Dementia	12
Cancer	75

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	160

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	39
Female	31

**Ethnicity**
Non-Hispanic White	34
Black	36
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	38
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2021

Hypertension	75
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	41
Depression	19
Chronic Kidney Disease	37
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	16
Chronic Obstructive Pulmonary Disease	19
Diabetes	37
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	114

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	41
Female	25

**Ethnicity**
Non-Hispanic White	52
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	34
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2022

Hypertension	75
High Cholesterol	73
Stroke	0
Ischemic Heart Disease	47
Depression	0
Chronic Kidney Disease	24
Asthma	0
Osteoperosis	0
Atrial Fibrilation	23
Heart Failure	24
Chronic Obstructive Pulmonary Disease	36
Diabetes	36
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	333

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	117
Female	91

**Ethnicity**
Non-Hispanic White	185
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	106
From 75 to 84	69
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	38
Depression	20
Chronic Kidney Disease	27
Asthma	8
Osteoperosis	15
Atrial Fibrilation	21
Heart Failure	16
Chronic Obstructive Pulmonary Disease	31
Diabetes	38
Dementia	7
Cancer	75

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Gregory William Cotter, MD treated as a radiation oncologist in Natchez, MS during 2024 were radiation therapy.

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

doctor visit	347
radiation therapy	272

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	56
Female	37

**Ethnicity**
Non-Hispanic White	59
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	48
From 75 to 84	31
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2024

Hypertension	75
High Cholesterol	72
Stroke	0
Ischemic Heart Disease	22
Depression	20
Chronic Kidney Disease	25
Asthma	0
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	37
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Gregory William Cotter, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory William Cotter, MD treated as a radiation oncologist in Natchez, MS were radiation therapy, hospital care and inpatient care.

doctor visit	253
hospital care	14
inpatient care	14
radiation therapy	177

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Gregory William Cotter, MD.

**Gender**
Male	62
Female	52

**Ethnicity**
Black / African American	14
Asian / Pacific Islander	0
Non-Hispanic White	70
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	32
85 and over	1
Less than 65	3
65 to 74	56

Average of Total of Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Gregory William Cotter, MD treated were cancer, hypertension, high cholesterol and ischemic heart disease.

Hypertension	68
High Cholesterol	55
Stroke	1
Ischemic Heart Disease	37
Depression	16
Chronic Kidney Disease	23
Asthma	3
Osteoporosis	2
Heart Failure	16
Chronic Obstructive Pulmonary Disease	20
Diabetes	27
Atrial Fibrillation	8
Cancer	68
Dementia	2

Education & Training

He completed residency at Barnes-Jewish Hospital. He is certified by the American Board of Radiology and has a state license in Louisiana.

Residency: Barnes-Jewish Hospital

Board Certification: American Board of Radiology

Licensed In: Louisiana

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Gregory William Cotter, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
INSYS Therapeutics Inc	$348 SUBSYS $348
Boston Scientific Corporation	$31 CLINICAL TRIAL PRODUCT $17	DIAGNOSTIC $14
Medtronic Sofamor Danek USA, Inc.	$27 Interventional Therapies $27

**Types of Payments**
Food and Beverage	$406

Biography

Dr. Gregory Cotter works as a radiation oncology. Dr. Cotter is a graduate of the University of South Alabama College of Medicine and a graduate of Barnes-Jewish Hospital's residency program. His practice in Natchez, MS is open to new patients as reported by Doctor.com.

Select Year:

Dr. Gregory William Cotter, MD

Office Locations

In The News (see more mentions in the news)

Noteworthy Medicare Patient Procedures Performed by Dr. Gregory William Cotter, MD in 2024

By Affordability:

By Volume:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. Gregory William Cotter, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Biography

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Other Providers in Natchez, MS