“The key finding of this study is that "where a patient lives may affect survival after transplant," says corresponding author Karen Ballen, MD, chief of hematology/oncology and UVA Cancer Center...”—"For Multiple Myeloma Patients After ASCT, Nonclinical Factors Matter, Too - Progress in Multiple Myeloma", MedPage Today, April 2024

“NORTHAMPTON - Community members are invited to attend the next Mass General Cancer Center at Cooley Dickinson Hosptial lecture, "Acute Leukemia, 2016 and Beyond" with Karen Kuhn Ballen, MD, on...”—"Medical notes: May 16, 2016", Mass Live, May 2016

“"Cord blood is desperately needed," says Dr. Karen Ballen, an oncologist at Massachusetts General Hospital who helped write cord-blood banking guidelines for the American Society for Blood and...”—"Banking cord blood presents dilemma for new parents", Twin Cities Pioneer Press, March 2009

Noteworthy Medicare Patient Procedures Performed by Dr. Karen K. Ballen, MD in 2023

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

Top 25%

By Volume:

inpatient hospital care

In 2012, Dr. Karen K. Ballen, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of providers in related specialties within Virginia.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Karen K. Ballen, MD treated as a hepatologist in CHARLOTTESVILLE, VA during 2012 were hospital care, inpatient care, diagnostic procedures and bone marrow tests.

Volume of procedures performed by Dr. Karen K. Ballen, MD for Medicare patients.

aspiration	19
bone marrow tests	51
diagnostic procedures	51
doctor visit	319
hospital care	428
inpatient care	428

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Karen K. Ballen, MD treated as a hepatologist in CHARLOTTESVILLE, VA during 2013 were hospital care, inpatient care, diagnostic procedures and bone marrow tests.

Volume of procedures performed by Dr. Karen K. Ballen, MD for Medicare patients.

aspiration	13
bone marrow tests	29
diagnostic procedures	29
doctor visit	444
hospital care	323
inpatient care	323

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen K. Ballen, MD.

**Gender**
Male	63
Female	66

**Ethnicity**
Non-Hispanic White	110
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	37
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen K. Ballen, MD in 2013

Hypertension	66
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	41
Depression	31
Chronic Kidney Disease	43
Asthma	9
Osteoperosis	16
Atrial Fibrilation	12
Heart Failure	36
Chronic Obstructive Pulmonary Disease	22
Diabetes	29
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Karen K. Ballen, MD treated as a hepatologist in CHARLOTTESVILLE, VA during 2014 were hospital care, inpatient care, diagnostic procedures and bone marrow tests.

Volume of procedures performed by Dr. Karen K. Ballen, MD for Medicare patients.

bone marrow tests	24
diagnostic procedures	24
doctor visit	453
hospital care	403
inpatient care	403

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen K. Ballen, MD.

**Gender**
Male	78
Female	67

**Ethnicity**
Non-Hispanic White	119
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	75
From 75 to 84	0
85 and over	0
Less than 65	35

Conditions of Medicare patients treated by Dr. Karen K. Ballen, MD in 2014

Hypertension	71
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	37
Depression	34
Chronic Kidney Disease	50
Asthma	11
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	37
Chronic Obstructive Pulmonary Disease	16
Diabetes	30
Dementia	0
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Karen K. Ballen, MD treated as a hepatologist in CHARLOTTESVILLE, VA during 2015 were hospital care, inpatient care, diagnostic procedures and bone marrow tests.

Volume of procedures performed by Dr. Karen K. Ballen, MD for Medicare patients.

bone marrow tests	36
diagnostic procedures	36
doctor visit	501
hospital care	582
inpatient care	582

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen K. Ballen, MD.

**Gender**
Male	200
Female	146

**Ethnicity**
Non-Hispanic White	310
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	148
From 75 to 84	112
85 and over	24
Less than 65	62

Conditions of Medicare patients treated by Dr. Karen K. Ballen, MD in 2015

Hypertension	69
High Cholesterol	48
Stroke	6
Ischemic Heart Disease	35
Depression	32
Chronic Kidney Disease	49
Asthma	13
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	33
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Dementia	12
Cancer	17

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Karen K. Ballen, MD treated as a hepatologist in CHARLOTTESVILLE, VA during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen K. Ballen, MD for Medicare patients.

doctor visit	316
hospital care	291
inpatient care	291

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen K. Ballen, MD.

**Gender**
Male	72
Female	58

**Ethnicity**
Non-Hispanic White	112
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	54
From 75 to 84	36
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen K. Ballen, MD in 2016

Hypertension	75
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	44
Depression	32
Chronic Kidney Disease	54
Asthma	19
Osteoperosis	12
Atrial Fibrilation	15
Heart Failure	32
Chronic Obstructive Pulmonary Disease	18
Diabetes	31
Dementia	22
Cancer	16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Karen K. Ballen, MD treated as a hepatologist in CHARLOTTESVILLE, VA during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen K. Ballen, MD for Medicare patients.

doctor visit	207
hospital care	263
inpatient care	263

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen K. Ballen, MD.

**Gender**
Male	50
Female	39

**Ethnicity**
Non-Hispanic White	76
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	47
From 75 to 84	21
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen K. Ballen, MD in 2017

Hypertension	75
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	47
Depression	33
Chronic Kidney Disease	57
Asthma	0
Osteoperosis	0
Atrial Fibrilation	18
Heart Failure	26
Chronic Obstructive Pulmonary Disease	17
Diabetes	28
Dementia	12
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Karen K. Ballen, MD treated as a hepatologist in CHARLOTTESVILLE, VA during 2018 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen K. Ballen, MD for Medicare patients.

doctor visit	243
hospital care	416
inpatient care	416

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen K. Ballen, MD.

**Gender**
Male	85
Female	75

**Ethnicity**
Non-Hispanic White	132
Black	15
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	35
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen K. Ballen, MD in 2018

Hypertension	75
High Cholesterol	59
Stroke	10
Ischemic Heart Disease	43
Depression	38
Chronic Kidney Disease	63
Asthma	0
Osteoperosis	0
Atrial Fibrilation	19
Heart Failure	37
Chronic Obstructive Pulmonary Disease	19
Diabetes	35
Dementia	16
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Karen K. Ballen, MD treated as a hepatologist in CHARLOTTESVILLE, VA during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen K. Ballen, MD for Medicare patients.

doctor visit	155
hospital care	371
inpatient care	371

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen K. Ballen, MD.

**Gender**
Male	86
Female	61

**Ethnicity**
Non-Hispanic White	125
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	0
85 and over	0
Less than 65	33

Conditions of Medicare patients treated by Dr. Karen K. Ballen, MD in 2019

Hypertension	75
High Cholesterol	59
Stroke	10
Ischemic Heart Disease	43
Depression	33
Chronic Kidney Disease	58
Asthma	9
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	37
Chronic Obstructive Pulmonary Disease	12
Diabetes	33
Dementia	18
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Karen K. Ballen, MD treated as a hepatologist in CHARLOTTESVILLE, VA during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen K. Ballen, MD for Medicare patients.

doctor visit	204
hospital care	201
inpatient care	201

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen K. Ballen, MD.

**Gender**
Male	61
Female	38

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

**Age**
From 65 to 74	63
From 75 to 84	0
85 and over	0
Less than 65	20

Conditions of Medicare patients treated by Dr. Karen K. Ballen, MD in 2020

Hypertension	72
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	40
Depression	31
Chronic Kidney Disease	54
Asthma	11
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	27
Chronic Obstructive Pulmonary Disease	16
Diabetes	29
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Karen K. Ballen, MD treated as a hepatologist in CHARLOTTESVILLE, VA during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen K. Ballen, MD for Medicare patients.

doctor visit	313
hospital care	203
inpatient care	203

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen K. Ballen, MD.

**Gender**
Male	71
Female	55

**Ethnicity**
Non-Hispanic White	107
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	81
From 75 to 84	0
85 and over	0
Less than 65	25

Conditions of Medicare patients treated by Dr. Karen K. Ballen, MD in 2021

Hypertension	64
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	37
Depression	33
Chronic Kidney Disease	52
Asthma	0
Osteoperosis	0
Atrial Fibrilation	13
Heart Failure	28
Chronic Obstructive Pulmonary Disease	13
Diabetes	35
Dementia	10
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Karen K. Ballen, MD treated as a hepatologist in CHARLOTTESVILLE, VA during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen K. Ballen, MD for Medicare patients.

doctor visit	401
hospital care	140
inpatient care	140

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen K. Ballen, MD.

**Gender**
Male	78
Female	56

**Ethnicity**
Non-Hispanic White	105
Black	13
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	26
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen K. Ballen, MD in 2022

Hypertension	68
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	21
Depression	22
Chronic Kidney Disease	34
Asthma	0
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	34
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Karen K. Ballen, MD for Medicare patients.

The highest averages for the top procedures that Dr. Karen K. Ballen, MD treated as a hepatologist in CHARLOTTESVILLE, VA were hospital care, inpatient care, diagnostic procedures and bone marrow tests.

aspiration	16
bone marrow tests	35
diagnostic procedures	35
doctor visit	323
hospital care	329
inpatient care	329

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Karen K. Ballen, MD.

**Gender**
Female	60
Male	76

**Ethnicity**
Black / African American	2
Asian / Pacific Islander	0
Non-Hispanic White	116
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
85 and over	2
75 to 84	24
Less than 65	15
65 to 74	71

Average of Total of Conditions of Medicare patients treated by Dr. Karen K. Ballen, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Karen K. Ballen, MD treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	64
High Cholesterol	47
Stroke	2
Ischemic Heart Disease	35
Depression	29
Chronic Kidney Disease	46
Asthma	6
Osteoporosis	5
Heart Failure	28
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Atrial Fibrillation	12
Dementia	8
Cancer	8

Education & Training

She completed residency at Beth Israel Deaconess Medical Center. She is certified by the American Board of Internal Medicine and has a state license in Massachusetts.

Residency: Beth Israel Deaconess Medical Center (1989)

Board Certification: American Board of Internal Medicine

Licensed In: Massachusetts

Ratings & Reviews

Dr. Karen K. Ballen, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Karen K. Ballen, MD from all over the web to help you find the right in CHARLOTTESVILLE, VA.

Overall Rating

(1 Rating)

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Reviews From Around The Web

Overall Rating: 5.0 2025-08-06

Patient verified via Press Ganey

The Chief Hematologist/Oncologist and Professor of Medicine, Karen K. Ballen was very nice, attentive, informative, and thorough. Very happy she is taking care of me.

General Payments

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

**Payments by Company**
National Marrow Donor Program	$1,250 $1,250
Pfizer Inc.	$98 Non-Covered Product $98
Baxalta US Inc	$80 Oncaspar $80
Sigma-Tau Pharmaceuticals, Inc.	$77 Oncaspar $77

**Types of Payments**
Food and Beverage	$759
Travel and Lodging	$746

Research Payments

Dr. Karen K. Ballen, MD has received 34 research payments totaling $649,289.

Biography

Dr. Karen Ballen practices adult hematology, adult oncology, and adult hepatology. Her medical residency was performed at Beth Israel Deaconess Medical Center. According to Doctor.com, new patients are welcome to contact her office in Charlottesville, VA.