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John K. Waas, DO

(John Waas)

(No ratings)

Specializes in: Medical Oncology, Adult Oncology and Adult Hematology

Philadelphia College of Osteopathic Medicine (1996)

8775 Norwin Avenue Suite J
North Huntingdon, PA 15642

(724) 834-1463

John K. Waas, DO is a medical oncologist in Greensburg, PA specializing in medical oncology, adult oncology and adult hematology. He graduated from Philadelphia College of Osteopathic Medicine in 1996 and has 30 years of experience. John K. Waas, DO is affiliated with Independence Health System, HEMATOLOGY ONCOLOGY ASSOCIATION, Frick Hospital, Latrobe Hospital and Westmoreland Hospital.

Office Locations

400 Oakbrook Drive Suite 2201
Greensburg, PA 15601

(724) 834-1463

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Westmoreland Hospital

508 South Church Street Suite 202
Mount Pleasant, PA 15666

(724) 547-7092

(724) 547-7096

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Westmoreland Hospital

8775 Norwin Avenue Suite J
North Huntingdon, PA 15642

(724) 834-1463

(724) 834-1464

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Noteworthy Medicare Patient Procedures Performed by John K. Waas, DO in 2023

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

Top 25%

By Volume:

white blood cell differential

In 2012, John K. Waas, DO performed more white blood cell (WBC) differential procedures for Medicare patients than 75% of providers in related specialties within Pennsylvania.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that John K. Waas, DO treated as a medical oncologist in Greensburg, PA during 2012 were lab tests, blood draw, hospital care and inpatient care.

Volume of procedures performed by John K. Waas, DO for Medicare patients.

biological response modifier (BRM) therapy	187
blood draw	577
chemotherapy	187
doctor visit	518
hospital care	302
inpatient care	302
lab tests	824
minimally invasive procedures	236
port flush	139

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that John K. Waas, DO treated as a medical oncologist in Greensburg, PA during 2013 were lab tests, blood draw, minimally invasive procedures and hospital care.

Volume of procedures performed by John K. Waas, DO for Medicare patients.

aspiration	13
biological response modifier (BRM) therapy	157
blood draw	675
bone marrow tests	26
chemotherapy	157
diagnostic procedures	26
doctor visit	590
hospital care	265
inpatient care	265
lab tests	868
minimally invasive procedures	268
port flush	86

2013 Medicare Patient Data

Information about Medicare patients treated by John K. Waas, DO.

**Gender**
Male	140
Female	180

**Ethnicity**
Non-Hispanic White	308
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	103
From 75 to 84	106
85 and over	54
Less than 65	57

Conditions of Medicare patients treated by John K. Waas, DO in 2013

Hypertension	65
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	37
Depression	18
Chronic Kidney Disease	37
Asthma	6
Osteoperosis	7
Atrial Fibrilation	18
Heart Failure	27
Chronic Obstructive Pulmonary Disease	22
Diabetes	33
Dementia	10
Cancer	39

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that John K. Waas, DO treated as a medical oncologist in Greensburg, PA during 2014 were lab tests, blood draw, hospital care and inpatient care.

Volume of procedures performed by John K. Waas, DO for Medicare patients.

biological response modifier (BRM) therapy	129
blood draw	699
chemotherapy	129
doctor visit	593
hospital care	306
inpatient care	306
lab tests	874
minimally invasive procedures	253
port flush	69

2014 Medicare Patient Data

Information about Medicare patients treated by John K. Waas, DO.

**Gender**
Male	146
Female	209

**Ethnicity**
Non-Hispanic White	343
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	113
From 75 to 84	108
85 and over	66
Less than 65	68

Conditions of Medicare patients treated by John K. Waas, DO in 2014

Hypertension	69
High Cholesterol	54
Stroke	6
Ischemic Heart Disease	35
Depression	22
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	9
Atrial Fibrilation	17
Heart Failure	26
Chronic Obstructive Pulmonary Disease	23
Diabetes	34
Dementia	8
Cancer	36

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that John K. Waas, DO treated as a medical oncologist in Greensburg, PA during 2015 were lab tests, blood draw, minimally invasive procedures and hospital care.

Volume of procedures performed by John K. Waas, DO for Medicare patients.

biological response modifier (BRM) therapy	185
blood draw	682
chemotherapy	185
doctor visit	645
hospital care	272
inpatient care	272
lab tests	953
minimally invasive procedures	328
port flush	101

2015 Medicare Patient Data

Information about Medicare patients treated by John K. Waas, DO.

**Gender**
Male	274
Female	404

**Ethnicity**
Non-Hispanic White	650
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	234
From 75 to 84	184
85 and over	140
Less than 65	120

Conditions of Medicare patients treated by John K. Waas, DO in 2015

Hypertension	70
High Cholesterol	51
Stroke	6
Ischemic Heart Disease	36
Depression	21
Chronic Kidney Disease	32
Asthma	16
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	24
Chronic Obstructive Pulmonary Disease	24
Diabetes	32
Dementia	13
Cancer	37

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that John K. Waas, DO treated as a medical oncologist in Greensburg, PA during 2016 were lab tests, blood draw, minimally invasive procedures and hospital care.

Volume of procedures performed by John K. Waas, DO for Medicare patients.

biological response modifier (BRM) therapy	233
blood draw	609
chemotherapy	233
doctor visit	618
hospital care	246
inpatient care	246
lab tests	876
minimally invasive procedures	366
port flush	87

2016 Medicare Patient Data

Information about Medicare patients treated by John K. Waas, DO.

**Gender**
Male	161
Female	212

**Ethnicity**
Non-Hispanic White	355
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	94
85 and over	69
Less than 65	63

Conditions of Medicare patients treated by John K. Waas, DO in 2016

Hypertension	73
High Cholesterol	56
Stroke	6
Ischemic Heart Disease	36
Depression	22
Chronic Kidney Disease	41
Asthma	30
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	27
Chronic Obstructive Pulmonary Disease	28
Diabetes	33
Dementia	10
Cancer	36

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that John K. Waas, DO treated as a medical oncologist in Greensburg, PA during 2017 were lab tests, blood draw, minimally invasive procedures and hospital care.

Volume of procedures performed by John K. Waas, DO for Medicare patients.

biological response modifier (BRM) therapy	190
blood draw	612
chemotherapy	190
doctor visit	594
hospital care	196
inpatient care	196
lab tests	855
minimally invasive procedures	334
port flush	62

2017 Medicare Patient Data

Information about Medicare patients treated by John K. Waas, DO.

**Gender**
Male	146
Female	221

**Ethnicity**
Non-Hispanic White	347
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	92
85 and over	60
Less than 65	61

Conditions of Medicare patients treated by John K. Waas, DO in 2017

Hypertension	68
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	36
Depression	20
Chronic Kidney Disease	39
Asthma	9
Osteoperosis	8
Atrial Fibrilation	16
Heart Failure	26
Chronic Obstructive Pulmonary Disease	22
Diabetes	29
Dementia	8
Cancer	38

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that John K. Waas, DO treated as a medical oncologist in Greensburg, PA during 2018 were lab tests, blood draw, minimally invasive procedures and hospital care.

Volume of procedures performed by John K. Waas, DO for Medicare patients.

biological response modifier (BRM) therapy	191
blood draw	729
chemotherapy	191
doctor visit	408
hormone therapy	61
hospital care	213
inpatient care	213
lab tests	947
minimally invasive procedures	279
port flush	66

2018 Medicare Patient Data

Information about Medicare patients treated by John K. Waas, DO.

**Gender**
Male	130
Female	172

**Ethnicity**
Non-Hispanic White	289
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	124
From 75 to 84	79
85 and over	52
Less than 65	47

Conditions of Medicare patients treated by John K. Waas, DO in 2018

Hypertension	73
High Cholesterol	62
Stroke	7
Ischemic Heart Disease	38
Depression	23
Chronic Kidney Disease	44
Asthma	8
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	25
Chronic Obstructive Pulmonary Disease	27
Diabetes	31
Dementia	9
Cancer	38

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that John K. Waas, DO treated as a medical oncologist in Greensburg, PA during 2019 were lab tests, blood draw, minimally invasive procedures and hospital care.

Volume of procedures performed by John K. Waas, DO for Medicare patients.

biological response modifier (BRM) therapy	115
blood draw	418
chemotherapy	115
doctor visit	336
hormone therapy	102
hospital care	184
inpatient care	184
lab tests	793
minimally invasive procedures	258
port flush	25

2019 Medicare Patient Data

Information about Medicare patients treated by John K. Waas, DO.

**Gender**
Male	119
Female	174

**Age**
From 65 to 74	135
From 75 to 84	75
85 and over	41
Less than 65	42

Conditions of Medicare patients treated by John K. Waas, DO in 2019

Hypertension	71
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	37
Depression	24
Chronic Kidney Disease	43
Asthma	7
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	26
Chronic Obstructive Pulmonary Disease	23
Diabetes	30
Dementia	11
Cancer	39

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that John K. Waas, DO treated as a medical oncologist in Greensburg, PA during 2020 were lab tests, minimally invasive procedures, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by John K. Waas, DO for Medicare patients.

biological response modifier (BRM) therapy	183
blood draw	27
chemotherapy	183
doctor visit	377
hormone therapy	109
hospital care	160
inpatient care	160
lab tests	773
minimally invasive procedures	308

2020 Medicare Patient Data

Information about Medicare patients treated by John K. Waas, DO.

**Gender**
Male	113
Female	175

**Ethnicity**
Non-Hispanic White	274
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	142
From 75 to 84	64
85 and over	45
Less than 65	37

Conditions of Medicare patients treated by John K. Waas, DO in 2020

Hypertension	65
High Cholesterol	56
Stroke	7
Ischemic Heart Disease	41
Depression	27
Chronic Kidney Disease	43
Asthma	9
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	24
Chronic Obstructive Pulmonary Disease	23
Diabetes	30
Dementia	12
Cancer	43

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that John K. Waas, DO treated as a medical oncologist in Greensburg, PA during 2021 were lab tests, minimally invasive procedures, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by John K. Waas, DO for Medicare patients.

biological response modifier (BRM) therapy	164
blood draw	27
chemotherapy	164
doctor visit	350
hospital care	121
inpatient care	121
lab tests	741
minimally invasive procedures	288

2021 Medicare Patient Data

Information about Medicare patients treated by John K. Waas, DO.

**Gender**
Male	113
Female	173

**Ethnicity**
Non-Hispanic White	273
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	155
From 75 to 84	58
85 and over	42
Less than 65	31

Conditions of Medicare patients treated by John K. Waas, DO in 2021

Hypertension	71
High Cholesterol	63
Stroke	6
Ischemic Heart Disease	45
Depression	24
Chronic Kidney Disease	40
Asthma	6
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	26
Chronic Obstructive Pulmonary Disease	22
Diabetes	31
Dementia	8
Cancer	41

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that John K. Waas, DO treated as a medical oncologist in Greensburg, PA during 2022 were lab tests, minimally invasive procedures, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by John K. Waas, DO for Medicare patients.

biological response modifier (BRM) therapy	274
chemotherapy	274
doctor visit	368
hospital care	140
inpatient care	140
lab tests	842
minimally invasive procedures	385

2022 Medicare Patient Data

Information about Medicare patients treated by John K. Waas, DO.

**Gender**
Male	130
Female	192

**Ethnicity**
Non-Hispanic White	307
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	167
From 75 to 84	78
85 and over	39
Less than 65	38

Conditions of Medicare patients treated by John K. Waas, DO in 2022

Hypertension	75
High Cholesterol	73
Stroke	14
Ischemic Heart Disease	37
Depression	23
Chronic Kidney Disease	33
Asthma	10
Osteoperosis	15
Atrial Fibrilation	22
Heart Failure	25
Chronic Obstructive Pulmonary Disease	25
Diabetes	38
Dementia	5
Cancer	42

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by John K. Waas, DO for Medicare patients.

The highest averages for the top procedures that John K. Waas, DO treated as a medical oncologist in Greensburg, PA were lab tests, blood draw, minimally invasive procedures and hospital care.

aspiration	13
biological response modifier (BRM) therapy	182
blood draw	505
bone marrow tests	26
chemotherapy	182
diagnostic procedures	26
doctor visit	490
hormone therapy	90
hospital care	218
inpatient care	218
lab tests	849
minimally invasive procedures	300

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by John K. Waas, DO.

**Gender**
Male	133
Female	192

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	286
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	85
85 and over	55
Less than 65	51
65 to 74	134

Average of Total of Conditions of Medicare patients treated by John K. Waas, DO From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that John K. Waas, DO treated were hypertension, high cholesterol, cancer and chronic kidney disease.

Hypertension	63
High Cholesterol	52
Stroke	6
Ischemic Heart Disease	34
Depression	20
Chronic Kidney Disease	34
Asthma	9
Osteoporosis	9
Heart Failure	23
Chronic Obstructive Pulmonary Disease	21
Diabetes	29
Atrial Fibrillation	14
Cancer	35
Dementia	8

Education & Training

John K. Waas, DO graduated from Philadelphia College of Osteopathic Medicine in 1996. He completed residency at LeHigh Valley Hospital Network. He is certified by the American Board of Internal Medicine/Medical Oncology and has a state license in Pennsylvania.

Medical School: Philadelphia College of Osteopathic Medicine (1996)

Residency: LeHigh Valley Hospital Network

Board Certification: American Board of Internal Medicine/Medical Oncology

Licensed In: Pennsylvania

Affiliations & Hospitals

John K. Waas, DO is associated with these hospitals and organizations:

Independence Health System

HEMATOLOGY ONCOLOGY ASSOCIATION

Frick Hospital

Latrobe Hospital

Westmoreland Hospital

Ratings & Reviews

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General Payments

These charts describe general payments received by John K. Waas, DO. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Bayer HealthCare Pharmaceuticals Inc.	$1,056 Stivarga $900	Nexavar $99	Xofigo $38	Vitrakvi $20
Celgene Corporation	$884 Abraxane $632	Reblozyl $117	Istodax $80	Pomalyst $54
Genentech USA, Inc.	$620 Avastin $289	Kadcyla $119	Venclexta $66	TECENTRIQ $21	$125
Merck Sharp & Dohme Corporation	$570 KEYTRUDA $536	$34
AstraZeneca Pharmaceuticals LP	$414 IMFINZI $202	LYNPARZA $114	TAGRISSO $98
Other	$2,687 OPDIVO $230	IMBRUVICA $198	VELCADE $195	XTANDI $181	Lonsurf $140	Other $1,743

**Types of Payments**
Food and Beverage	$5,040
Consulting Fee	$900
Education	$291

Biography

Dr. John Waas is an adult hematology, adult oncology, and medical oncology specialist in Greensburg, PA, Mount Pleasant, PA, and North Huntingdon, PA. Dr. Waas studied medicine at Philadelphia College of Osteopathic Medicine. He completed his residency training at LeHigh Valley Hospital Network. He is professionally affiliated with Independence Health System.

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John K. Waas, DO

Office Locations

Noteworthy Medicare Patient Procedures Performed by John K. Waas, DO in 2023

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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 John K. Waas, DO in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by John K. Waas, DO in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by John K. Waas, DO in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by John K. Waas, DO in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by John K. Waas, DO in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by John K. Waas, DO in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by John K. Waas, DO in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by John K. Waas, DO in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by John K. Waas, DO in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by John K. Waas, 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 John K. Waas, DO From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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