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Home > PA Providers > Gynecologic Oncologists

Dr. Gregory S. Willis, DO

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Specializes in: Gynecologic Oncology

1703 Innovation Drive Suite 2001
York, PA 17408

(717) 801-0739

Dr. Gregory S. Willis, DO is a gynecologic oncologist in York, PA specializing in gynecologic oncology.

Office Locations

1703 Innovation Drive Suite 2001
York, PA 17408

(717) 801-0739

(717) 801-0645

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2035 Technology Parkway Suite 201
Mechanicsburg, PA 17050

(717) 221-5940

(717) 233-1939

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gregory S. Willis, DO treated as a gynecologic oncologist in York, PA during 2012 were hospital care, inpatient care, minimally invasive procedures and gynecologic procedures.

Volume of procedures performed by Dr. Gregory S. Willis, DO for Medicare patients.

diagnostic procedures	12
dissection	12
doctor visit	750
excision	12
gynecologic procedures	16
hospital care	58
inpatient care	58
lymph node procedures	12
minimally invasive procedures	28
pelvic surgery	12

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory S. Willis, DO treated as a gynecologic oncologist in York, PA during 2013 were minimally invasive procedures and gynecologic procedures.

Volume of procedures performed by Dr. Gregory S. Willis, DO for Medicare patients.

doctor visit	677
gynecologic procedures	14
minimally invasive procedures	14

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory S. Willis, DO.

**Gender**
Male	0
Female	208

**Ethnicity**
Non-Hispanic White	195
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	105
From 75 to 84	58
85 and over	22
Less than 65	23

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2013

Hypertension	75
High Cholesterol	65
Stroke	6
Ischemic Heart Disease	29
Depression	28
Chronic Kidney Disease	27
Asthma	10
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	33
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory S. Willis, DO treated as a gynecologic oncologist in York, PA during 2014 were minimally invasive procedures and gynecologic procedures.

Volume of procedures performed by Dr. Gregory S. Willis, DO for Medicare patients.

doctor visit	588
gynecologic procedures	14
minimally invasive procedures	14

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory S. Willis, DO.

**Gender**
Male	0
Female	217

**Ethnicity**
Non-Hispanic White	204
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	106
From 75 to 84	67
85 and over	21
Less than 65	23

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2014

Hypertension	75
High Cholesterol	62
Stroke	6
Ischemic Heart Disease	27
Depression	28
Chronic Kidney Disease	23
Asthma	6
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory S. Willis, DO treated as a gynecologic oncologist in York, PA during 2015 were minimally invasive procedures and gynecologic procedures.

Volume of procedures performed by Dr. Gregory S. Willis, DO for Medicare patients.

doctor visit	681
gynecologic procedures	18
minimally invasive procedures	18

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory S. Willis, DO.

**Gender**
Male	0
Female	454

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

**Age**
From 65 to 74	214
From 75 to 84	144
85 and over	24
Less than 65	72

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2015

Hypertension	75
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	23
Depression	30
Chronic Kidney Disease	21
Asthma	10
Osteoperosis	7
Atrial Fibrilation	6
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	33
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory S. Willis, DO treated as a gynecologic oncologist in York, PA during 2016 were minimally invasive procedures, dissection, diagnostic procedures and pelvic surgery.

Volume of procedures performed by Dr. Gregory S. Willis, DO for Medicare patients.

diagnostic procedures	12
dissection	12
doctor visit	430
excision	12
gynecologic procedures	12
lymph node procedures	12
minimally invasive procedures	24
pelvic surgery	12

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory S. Willis, DO.

**Gender**
Male	0
Female	196

**Ethnicity**
Non-Hispanic White	179
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	88
From 75 to 84	54
85 and over	17
Less than 65	37

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2016

Hypertension	74
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	29
Depression	30
Chronic Kidney Disease	30
Asthma	15
Osteoperosis	10
Atrial Fibrilation	8
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	30
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory S. Willis, DO treated as a gynecologic oncologist in York, PA during 2017 were minimally invasive procedures and gynecologic procedures.

Volume of procedures performed by Dr. Gregory S. Willis, DO for Medicare patients.

doctor visit	392
gynecologic procedures	12
minimally invasive procedures	12

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory S. Willis, DO.

**Gender**
Male	0
Female	168

**Ethnicity**
Non-Hispanic White	156
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	78
From 75 to 84	50
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2017

Hypertension	74
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	27
Depression	32
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	0
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory S. Willis, DO treated as a gynecologic oncologist in York, PA during 2018 were hospital care, inpatient care, minimally invasive procedures and gynecologic procedures.

Volume of procedures performed by Dr. Gregory S. Willis, DO for Medicare patients.

doctor visit	379
gynecologic procedures	11
hospital care	19
inpatient care	19
minimally invasive procedures	11

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory S. Willis, DO.

**Gender**
Male	0
Female	160

**Age**
From 65 to 74	75
From 75 to 84	41
85 and over	11
Less than 65	33

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2018

Hypertension	68
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	25
Depression	29
Chronic Kidney Disease	36
Asthma	9
Osteoperosis	12
Atrial Fibrilation	7
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	31
Dementia	8
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory S. Willis, DO treated as a gynecologic oncologist in York, PA during 2019 were minimally invasive procedures and gynecologic procedures.

Volume of procedures performed by Dr. Gregory S. Willis, DO for Medicare patients.

doctor visit	312
gynecologic procedures	14
minimally invasive procedures	14

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory S. Willis, DO.

**Gender**
Male	0
Female	144

**Ethnicity**
Non-Hispanic White	131
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	78
From 75 to 84	28
85 and over	13
Less than 65	25

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2019

Hypertension	67
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	24
Depression	25
Chronic Kidney Disease	31
Asthma	13
Osteoperosis	11
Atrial Fibrilation	8
Heart Failure	13
Chronic Obstructive Pulmonary Disease	0
Diabetes	27
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Gregory S. Willis, DO for Medicare patients.

doctor visit	195

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory S. Willis, DO.

**Gender**
Male	0
Female	99

**Age**
From 65 to 74	60
From 75 to 84	22
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2020

Hypertension	66
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	28
Depression	29
Chronic Kidney Disease	31
Asthma	12
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	23
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Gregory S. Willis, DO for Medicare patients.

doctor visit	273

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory S. Willis, DO.

**Gender**
Male	0
Female	120

**Ethnicity**
Non-Hispanic White	109
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	73
From 75 to 84	22
85 and over	12
Less than 65	13

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2021

Hypertension	67
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	33
Depression	27
Chronic Kidney Disease	42
Asthma	11
Osteoperosis	18
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	26
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Gregory S. Willis, DO for Medicare patients.

doctor visit	301

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory S. Willis, DO.

**Gender**
Male	0
Female	132

**Age**
From 65 to 74	81
From 75 to 84	23
85 and over	13
Less than 65	15

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2022

Hypertension	68
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	20
Depression	29
Chronic Kidney Disease	27
Asthma	11
Osteoperosis	18
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	30
Dementia	0
Cancer	52

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gregory S. Willis, DO for Medicare patients.

The highest averages for the top procedures that Dr. Gregory S. Willis, DO treated as a gynecologic oncologist in York, PA were hospital care, inpatient care, minimally invasive procedures and gynecologic procedures.

diagnostic procedures	12
dissection	12
doctor visit	452
excision	12
gynecologic procedures	13
hospital care	38
inpatient care	38
lymph node procedures	12
minimally invasive procedures	16
pelvic surgery	12

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gregory S. Willis, DO.

**Gender**
Male	0
Female	172

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	125
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	46
85 and over	12
Less than 65	21
65 to 74	87

Average of Total of Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Gregory S. Willis, DO treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	64
High Cholesterol	57
Stroke	1
Ischemic Heart Disease	24
Depression	26
Chronic Kidney Disease	27
Asthma	9
Osteoporosis	9
Heart Failure	11
Chronic Obstructive Pulmonary Disease	6
Diabetes	26
Atrial Fibrillation	6
Dementia	4
Cancer	15

Education & Training

He has a state license in Pennsylvania.

Licensed In: Pennsylvania

Ratings & Reviews

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General Payments

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

**Payments by Company**
TESARO, Inc.	$362 ZEJULA $362
AstraZeneca Pharmaceuticals LP	$231 LYNPARZA $231
GlaxoSmithKline, LLC.	$213 ZEJULA $213
Clovis Oncology, Inc.	$199 Rubraca $199
Plasma Surgical, Inc.	$121 PlasmaJet $121
Other	$413 SIR-Spheres microspheres $113	OFIRMEV $87	FOUNDATIONONE HEME $57	FLOSEAL $54	Da Vinci Surgical System $24	Other $78

**Types of Payments**
Food and Beverage	$1,418
Education	$121

Biography

Dr. Gregory Willis practices gynecologic oncology. He attended medical school at the University of North Texas Health Science Center, Texas College of Osteopathic Medicine.

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Dr. Gregory S. Willis, DO

Office Locations

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 S. Willis, DO in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory S. Willis, DO 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 S. Willis, DO From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

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