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Dr. Gregory A. Masters, MD

(1 Rating)

Specializes in: Medical Oncology and Adult Oncology

Northwestern University, Feinberg School of Medicine (1990)

4701 Ogletown Stanton Road Suite 2200
Newark, DE 19713

(302) 366-1200

Dr. Gregory A. Masters, MD is a medical oncologist in Newark, DE specializing in medical oncology and adult oncology. He graduated from Northwestern University, Feinberg School of Medicine in 1990 and has 36 years of experience. Dr. Gregory A. Masters, MD is affiliated with MEDICAL ONCOLOGY HEMATOLOGY CONSULTANTS PA.

Office Locations

4701 Ogletown Stanton Road Suite 2200
Newark, DE 19713

(302) 366-1200

(302) 366-1700

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In The News (see more mentions in the news)

“The guideline "is a result of potentially practice-changing evidence published since the last update [in 2017]," noted Gregory Masters, MD, of the ChristianaCare Helen F. Graham Cancer Center and...”—"Gregory Masters, MD, on Treating NSCLC With Driver Mutations", MedPage Today, May 2021

“"(They are) providing translational research or research that goes from bench to bedside,"said Dr. Gregory Masters, chair of the American Society of Clinical Oncology's Cancer Communications...”—"Game-changer", Springfield News-Sun, September 2014

“"It's exciting to see progress in this disease where the steps are small but cumulative," said Dr. Gregory Masters of the Helen F. Graham Cancer Center in Newark, Delaware, and an ASCO spokesman.”—"New drugs may make a dent in lung, ovarian cancer", Associated Press News, May 2014

Noteworthy Medicare Patient Procedures Performed by Dr. Gregory A. Masters, MD in 2023

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

Top 5%

By Affordability:

hospital care

inpatient care

inpatient hospital care

intravenous infusion

port flush

In 2023, Dr. Gregory A. Masters, MD had a list price for hospital care, inpatient care, inpatient hospital care (for patient admitted to hospital), intravenous (IV) infusion, and port flush that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Delaware. 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:

minimally invasive procedures

By Affordability:

intravenous infusion therapy

In 2012, among providers in related specialties within Delaware, Dr. Gregory A. Masters, MD performed more minimally invasive procedures procedures for Medicare patients than 75% of them and he also had a list price for intravenous infusion therapy 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

2012 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Masters, MD treated as a medical oncologist in Newark, DE during 2012 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Gregory A. Masters, MD for Medicare patients.

biological response modifier (BRM) therapy	457
chemotherapy	457
doctor visit	1301
hospital care	169
inpatient care	169
minimally invasive procedures	420
port flush	23

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Masters, MD treated as a medical oncologist in Newark, DE during 2013 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Gregory A. Masters, MD for Medicare patients.

biological response modifier (BRM) therapy	532
chemotherapy	532
doctor visit	1337
hospital care	193
inpatient care	193
minimally invasive procedures	508

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Masters, MD.

**Gender**
Male	199
Female	226

**Ethnicity**
Non-Hispanic White	353
Black	56
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	187
From 75 to 84	155
85 and over	38
Less than 65	45

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2013

Hypertension	71
High Cholesterol	59
Stroke	8
Ischemic Heart Disease	37
Depression	24
Chronic Kidney Disease	28
Asthma	10
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	33
Diabetes	32
Dementia	9
Cancer	69

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Masters, MD treated as a medical oncologist in Newark, DE during 2014 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Gregory A. Masters, MD for Medicare patients.

biological response modifier (BRM) therapy	563
chemotherapy	563
doctor visit	1588
hospital care	171
inpatient care	171
minimally invasive procedures	563

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Masters, MD.

**Gender**
Male	195
Female	244

**Ethnicity**
Non-Hispanic White	367
Black	56
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	202
From 75 to 84	152
85 and over	41
Less than 65	44

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2014

Hypertension	75
High Cholesterol	62
Stroke	7
Ischemic Heart Disease	39
Depression	24
Chronic Kidney Disease	29
Asthma	10
Osteoperosis	5
Atrial Fibrilation	17
Heart Failure	20
Chronic Obstructive Pulmonary Disease	31
Diabetes	32
Dementia	8
Cancer	67

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Masters, MD treated as a medical oncologist in Newark, DE during 2015 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Gregory A. Masters, MD for Medicare patients.

biological response modifier (BRM) therapy	488
chemotherapy	488
doctor visit	1483
hospital care	207
inpatient care	207
minimally invasive procedures	448
port flush	27

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Masters, MD.

**Gender**
Male	444
Female	536

**Ethnicity**
Non-Hispanic White	822
Black	128
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	444
From 75 to 84	348
85 and over	122
Less than 65	66

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2015

Hypertension	73
High Cholesterol	61
Stroke	7
Ischemic Heart Disease	42
Depression	22
Chronic Kidney Disease	30
Asthma	16
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	17
Chronic Obstructive Pulmonary Disease	29
Diabetes	35
Dementia	9
Cancer	69

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Masters, MD treated as a medical oncologist in Newark, DE during 2016 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Gregory A. Masters, MD for Medicare patients.

biological response modifier (BRM) therapy	537
chemotherapy	537
doctor visit	1596
hospital care	194
inpatient care	194
minimally invasive procedures	537
port flush	45

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Masters, MD.

**Gender**
Male	232
Female	257

**Ethnicity**
Non-Hispanic White	402
Black	68
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	211
From 75 to 84	188
85 and over	47
Less than 65	43

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2016

Hypertension	69
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	39
Depression	23
Chronic Kidney Disease	35
Asthma	33
Osteoperosis	6
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	32
Diabetes	36
Dementia	9
Cancer	69

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Masters, MD treated as a medical oncologist in Newark, DE during 2017 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Gregory A. Masters, MD for Medicare patients.

biological response modifier (BRM) therapy	621
chemotherapy	621
doctor visit	1622
hormone therapy	79
hospital care	257
inpatient care	257
minimally invasive procedures	621
port flush	69

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Masters, MD.

**Gender**
Male	239
Female	264

**Ethnicity**
Non-Hispanic White	421
Black	58
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	218
From 75 to 84	196
85 and over	50
Less than 65	39

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2017

Hypertension	74
High Cholesterol	54
Stroke	7
Ischemic Heart Disease	45
Depression	25
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	30
Diabetes	34
Dementia	11
Cancer	75

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Masters, MD treated as a medical oncologist in Newark, DE during 2018 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Gregory A. Masters, MD for Medicare patients.

biological response modifier (BRM) therapy	566
chemotherapy	566
doctor visit	1322
hospital care	136
inpatient care	136
minimally invasive procedures	533
port flush	88

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Masters, MD.

**Gender**
Male	191
Female	256

**Ethnicity**
Non-Hispanic White	377
Black	53
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	181
From 75 to 84	180
85 and over	48
Less than 65	38

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2018

Hypertension	69
High Cholesterol	62
Stroke	8
Ischemic Heart Disease	46
Depression	27
Chronic Kidney Disease	39
Asthma	8
Osteoperosis	8
Atrial Fibrilation	15
Heart Failure	19
Chronic Obstructive Pulmonary Disease	32
Diabetes	35
Dementia	11
Cancer	72

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Masters, MD treated as a medical oncologist in Newark, DE during 2019 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Gregory A. Masters, MD for Medicare patients.

biological response modifier (BRM) therapy	635
chemotherapy	635
doctor visit	870
hospital care	141
inpatient care	141
minimally invasive procedures	635
port flush	61

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Masters, MD.

**Gender**
Male	160
Female	216

**Ethnicity**
Non-Hispanic White	314
Black	45
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	167
85 and over	35
Less than 65	23

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2019

Hypertension	73
High Cholesterol	65
Stroke	6
Ischemic Heart Disease	54
Depression	27
Chronic Kidney Disease	42
Asthma	7
Osteoperosis	9
Atrial Fibrilation	17
Heart Failure	20
Chronic Obstructive Pulmonary Disease	34
Diabetes	33
Dementia	10
Cancer	74

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Masters, MD treated as a medical oncologist in Newark, DE during 2020 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Gregory A. Masters, MD for Medicare patients.

biological response modifier (BRM) therapy	487
chemotherapy	487
doctor visit	726
hospital care	99
inpatient care	99
minimally invasive procedures	506
port flush	45

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Masters, MD.

**Gender**
Male	166
Female	198

**Ethnicity**
Non-Hispanic White	315
Black	37
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	150
From 75 to 84	164
85 and over	29
Less than 65	21

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2020

Hypertension	70
High Cholesterol	64
Stroke	7
Ischemic Heart Disease	56
Depression	23
Chronic Kidney Disease	36
Asthma	7
Osteoperosis	8
Atrial Fibrilation	15
Heart Failure	15
Chronic Obstructive Pulmonary Disease	32
Diabetes	30
Dementia	9
Cancer	71

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Masters, MD treated as a medical oncologist in Newark, DE during 2021 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Gregory A. Masters, MD for Medicare patients.

biological response modifier (BRM) therapy	420
chemotherapy	420
doctor visit	745
hospital care	262
inpatient care	262
minimally invasive procedures	420
port flush	73

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Masters, MD.

**Gender**
Male	181
Female	205

**Ethnicity**
Non-Hispanic White	333
Black	42
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	166
From 75 to 84	154
85 and over	41
Less than 65	25

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2021

Hypertension	75
High Cholesterol	68
Stroke	9
Ischemic Heart Disease	59
Depression	29
Chronic Kidney Disease	47
Asthma	9
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	36
Diabetes	34
Dementia	10
Cancer	70

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Masters, MD treated as a medical oncologist in Newark, DE during 2022 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Gregory A. Masters, MD for Medicare patients.

biological response modifier (BRM) therapy	455
blood draw	16
chemotherapy	455
doctor visit	731
hospital care	95
inpatient care	95
minimally invasive procedures	471
port flush	49

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Masters, MD.

**Gender**
Male	239
Female	248

**Ethnicity**
Non-Hispanic White	410
Black	58
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	200
From 75 to 84	213
85 and over	44
Less than 65	30

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	41
Depression	25
Chronic Kidney Disease	28
Asthma	12
Osteoperosis	13
Atrial Fibrilation	24
Heart Failure	20
Chronic Obstructive Pulmonary Disease	38
Diabetes	34
Dementia	6
Cancer	68

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gregory A. Masters, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory A. Masters, MD treated as a medical oncologist in Newark, DE were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and hospital care.

biological response modifier (BRM) therapy	523
blood draw	16
chemotherapy	523
doctor visit	1211
hormone therapy	79
hospital care	174
inpatient care	174
minimally invasive procedures	514

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gregory A. Masters, MD.

**Gender**
Male	204
Female	240

**Ethnicity**
Black / African American	54
Asian / Pacific Islander	0
Non-Hispanic White	374
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	174
85 and over	45
Less than 65	34
65 to 74	191

Average of Total of Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD From 2012 - 2022

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

Hypertension	65
High Cholesterol	57
Stroke	6
Ischemic Heart Disease	41
Depression	22
Chronic Kidney Disease	31
Asthma	10
Osteoporosis	7
Heart Failure	17
Chronic Obstructive Pulmonary Disease	29
Diabetes	30
Atrial Fibrillation	14
Cancer	64
Dementia	8

Education & Training

Dr. Gregory A. Masters, MD graduated from Northwestern University, Feinberg School of Medicine in 1990. He has a state license in Delaware.

Medical School: Northwestern University, Feinberg School of Medicine (1990)

Licensed In: Delaware

Affiliations & Hospitals

Dr. Gregory A. Masters, MD is associated with these hospitals and organizations:

MEDICAL ONCOLOGY HEMATOLOGY CONSULTANTS PA

Ratings & Reviews

Dr. Gregory A. Masters, MD has an average of 1.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Gregory A. Masters, MD from all over the web to help you find the right in Newark, DE.

Overall Rating

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General Payments

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

**Payments by Company**
Lilly USA, LLC	$204 VERZENIO $189	RETEVMO $15
Pfizer Inc.	$116 BESPONSA $16	$100
GENZYME CORPORATION	$114 JEVTANA $98	CABLIVI $16
AstraZeneca Pharmaceuticals LP	$83 Enhertu $26	CALQUENCE $25	IMFINZI $17	TAGRISSO $15
Janssen Biotech, Inc.	$78 IMBRUVICA $78
Other	$441 FOUNDATIONONE HEME $39	Trodelvy $39	ROLVEDON $35	WELIREG $22	PROMACTA $20	Other $287

**Types of Payments**
Food and Beverage	$733
Education	$201
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$100

Research Payments

Dr. Gregory A. Masters, MD has received 11 research payments totaling $380,254.

Biography

Dr. Gregory Masters practices adult oncology, medical oncology, and hematology (blood disorders). He is a graduate of Northwestern University, Feinberg School of Medicine.

Select Year:

Dr. Gregory A. Masters, MD

Office Locations

In The News (see more mentions in the news)

Noteworthy Medicare Patient Procedures Performed by Dr. Gregory A. Masters, MD in 2023

By Affordability:

By Volume:

By Affordability:

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 A. Masters, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Gregory A. Masters, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Biography

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