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Dr. Frederick Greiner Barr, MD

(1 Rating)

Specializes in: Medical Oncology, Adult Oncology and Adult Hematology

Northwestern University, Feinberg School of Medicine (1975)

5454 Wisconsin Avenue Suite 1300
Chevy Chase, MD 20815

(301) 657-8587

Dr. Frederick Greiner Barr, MD is a medical oncologist in Chevy Chase, MD specializing in medical oncology, adult oncology and adult hematology. He graduated from Northwestern University, Feinberg School of Medicine in 1975 and has 51 years of experience. Dr. Frederick Greiner Barr, MD is affiliated with RCCA MD LLC.

Office Locations

5454 Wisconsin Avenue Suite 1300
Chevy Chase, MD 20815

(301) 657-8587

(301) 654-3958

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Noteworthy Medicare Patient Procedures Performed by Dr. Frederick Greiner Barr, MD in 2023

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

Top 25%

By Volume:

blood draw

phlebotomy for lab tests

In 2012, Dr. Frederick Greiner Barr, MD performed more blood draw, and phlebotomy for lab tests procedures for Medicare patients than 75% of providers in related specialties within Maryland.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Frederick Greiner Barr, MD treated as a medical oncologist in Chevy Chase, MD during 2012 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Frederick Greiner Barr, MD for Medicare patients.

aspiration	11
biological response modifier (BRM) therapy	391
bone marrow tests	22
chemotherapy	391
diagnostic procedures	22
doctor visit	2096
hospital care	144
inpatient care	144
minimally invasive procedures	515

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Frederick Greiner Barr, MD treated as a medical oncologist in Chevy Chase, MD during 2013 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Frederick Greiner Barr, MD for Medicare patients.

biological response modifier (BRM) therapy	513
chemotherapy	513
doctor visit	2222
hospital care	51
inpatient care	51
minimally invasive procedures	668

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Frederick Greiner Barr, MD.

**Gender**
Male	150
Female	305

**Ethnicity**
Non-Hispanic White	380
Black	57
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	169
From 75 to 84	164
85 and over	111
Less than 65	11

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2013

Hypertension	53
High Cholesterol	45
Stroke	5
Ischemic Heart Disease	30
Depression	11
Chronic Kidney Disease	17
Asthma	4
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	9
Diabetes	19
Dementia	11
Cancer	51

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Frederick Greiner Barr, MD treated as a medical oncologist in Chevy Chase, MD during 2014 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and diagnostic procedures.

Volume of procedures performed by Dr. Frederick Greiner Barr, MD for Medicare patients.

aspiration	12
biological response modifier (BRM) therapy	373
bone marrow tests	24
chemotherapy	373
diagnostic procedures	24
doctor visit	1969
minimally invasive procedures	545

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Frederick Greiner Barr, MD.

**Gender**
Male	163
Female	302

**Ethnicity**
Non-Hispanic White	387
Black	60
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	169
From 75 to 84	175
85 and over	105
Less than 65	16

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2014

Hypertension	58
High Cholesterol	46
Stroke	4
Ischemic Heart Disease	27
Depression	12
Chronic Kidney Disease	18
Asthma	5
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	8
Diabetes	18
Dementia	10
Cancer	47

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Frederick Greiner Barr, MD treated as a medical oncologist in Chevy Chase, MD during 2015 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and diagnostic procedures.

Volume of procedures performed by Dr. Frederick Greiner Barr, MD for Medicare patients.

aspiration	11
biological response modifier (BRM) therapy	192
bone marrow tests	22
chemotherapy	192
diagnostic procedures	22
doctor visit	2092
minimally invasive procedures	301

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Frederick Greiner Barr, MD.

**Gender**
Male	372
Female	644

**Ethnicity**
Non-Hispanic White	840
Black	132
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	366
From 75 to 84	370
85 and over	250
Less than 65	30

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2015

Hypertension	58
High Cholesterol	51
Stroke	6
Ischemic Heart Disease	31
Depression	14
Chronic Kidney Disease	19
Asthma	7
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	9
Diabetes	18
Dementia	9
Cancer	41

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Frederick Greiner Barr, MD treated as a medical oncologist in Chevy Chase, MD during 2016 were minimally invasive procedures, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Frederick Greiner Barr, MD for Medicare patients.

biological response modifier (BRM) therapy	231
chemotherapy	231
doctor visit	1840
minimally invasive procedures	312

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Frederick Greiner Barr, MD.

**Gender**
Male	156
Female	312

**Ethnicity**
Non-Hispanic White	382
Black	66
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	164
From 75 to 84	197
85 and over	95
Less than 65	12

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2016

Hypertension	59
High Cholesterol	49
Stroke	3
Ischemic Heart Disease	26
Depression	14
Chronic Kidney Disease	24
Asthma	11
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	9
Diabetes	21
Dementia	9
Cancer	43

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Frederick Greiner Barr, MD treated as a medical oncologist in Chevy Chase, MD during 2017 were lab tests, minimally invasive procedures, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Frederick Greiner Barr, MD for Medicare patients.

biological response modifier (BRM) therapy	221
chemotherapy	221
doctor visit	1323
lab tests	401
minimally invasive procedures	296

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Frederick Greiner Barr, MD.

**Gender**
Male	149
Female	261

**Ethnicity**
Non-Hispanic White	331
Black	54
Hispanic	0
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	132
From 75 to 84	167
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2017

Hypertension	60
High Cholesterol	45
Stroke	5
Ischemic Heart Disease	31
Depression	14
Chronic Kidney Disease	28
Asthma	6
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	22
Dementia	11
Cancer	48

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Frederick Greiner Barr, MD treated as a medical oncologist in Chevy Chase, MD during 2018 were lab tests, minimally invasive procedures, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Frederick Greiner Barr, MD for Medicare patients.

biological response modifier (BRM) therapy	182
chemotherapy	182
doctor visit	1353
lab tests	1232
minimally invasive procedures	319

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Frederick Greiner Barr, MD.

**Gender**
Male	129
Female	251

**Ethnicity**
Non-Hispanic White	302
Black	51
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	118
From 75 to 84	161
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2018

Hypertension	60
High Cholesterol	46
Stroke	5
Ischemic Heart Disease	28
Depression	11
Chronic Kidney Disease	25
Asthma	7
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	16
Chronic Obstructive Pulmonary Disease	8
Diabetes	18
Dementia	12
Cancer	46

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Frederick Greiner Barr, MD treated as a medical oncologist in Chevy Chase, MD during 2019 were lab tests, minimally invasive procedures, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Frederick Greiner Barr, MD for Medicare patients.

biological response modifier (BRM) therapy	190
chemotherapy	190
doctor visit	1639
lab tests	1269
minimally invasive procedures	294

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Frederick Greiner Barr, MD.

**Gender**
Male	247
Female	396

**Ethnicity**
Non-Hispanic White	528
Black	74
Hispanic	12
Asian	15
Other	14
Native American	0

**Age**
From 65 to 74	210
From 75 to 84	257
85 and over	143
Less than 65	33

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2019

Hypertension	64
High Cholesterol	56
Stroke	5
Ischemic Heart Disease	31
Depression	19
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	19
Chronic Obstructive Pulmonary Disease	14
Diabetes	27
Dementia	10
Cancer	41

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Frederick Greiner Barr, MD treated as a medical oncologist in Chevy Chase, MD during 2020 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Frederick Greiner Barr, MD for Medicare patients.

biological response modifier (BRM) therapy	181
blood draw	628
chemotherapy	181
doctor visit	1090
lab tests	1303
minimally invasive procedures	414

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Frederick Greiner Barr, MD.

**Gender**
Male	133
Female	253

**Ethnicity**
Non-Hispanic White	305
Black	51
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	168
85 and over	109
Less than 65	0

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2020

Hypertension	57
High Cholesterol	45
Stroke	6
Ischemic Heart Disease	30
Depression	16
Chronic Kidney Disease	32
Asthma	6
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	6
Diabetes	22
Dementia	13
Cancer	39

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Frederick Greiner Barr, MD treated as a medical oncologist in Chevy Chase, MD during 2021 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Frederick Greiner Barr, MD for Medicare patients.

biological response modifier (BRM) therapy	256
blood draw	1400
chemotherapy	256
doctor visit	1263
lab tests	1505
minimally invasive procedures	575

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Frederick Greiner Barr, MD.

**Gender**
Male	156
Female	270

**Ethnicity**
Non-Hispanic White	313
Black	57
Hispanic	0
Asian	25
Other	0
Native American	0

**Age**
From 65 to 74	118
From 75 to 84	199
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2021

Hypertension	62
High Cholesterol	53
Stroke	4
Ischemic Heart Disease	29
Depression	17
Chronic Kidney Disease	37
Asthma	6
Osteoperosis	15
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	7
Diabetes	25
Dementia	11
Cancer	36

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Frederick Greiner Barr, MD treated as a medical oncologist in Chevy Chase, MD during 2022 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Frederick Greiner Barr, MD for Medicare patients.

biological response modifier (BRM) therapy	266
blood draw	1567
chemotherapy	266
doctor visit	1424
lab tests	1729
minimally invasive procedures	584

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Frederick Greiner Barr, MD.

**Gender**
Male	160
Female	286

**Ethnicity**
Non-Hispanic White	310
Black	57
Hispanic	0
Asian	46
Other	0
Native American	0

**Age**
From 65 to 74	131
From 75 to 84	197
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2022

Hypertension	72
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	23
Depression	17
Chronic Kidney Disease	26
Asthma	9
Osteoperosis	21
Atrial Fibrilation	19
Heart Failure	11
Chronic Obstructive Pulmonary Disease	12
Diabetes	23
Dementia	4
Cancer	46

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Frederick Greiner Barr, MD for Medicare patients.

The highest averages for the top procedures that Dr. Frederick Greiner Barr, MD treated as a medical oncologist in Chevy Chase, MD were lab tests, blood draw, minimally invasive procedures and chemotherapy.

aspiration	11
biological response modifier (BRM) therapy	272
blood draw	1198
bone marrow tests	22
chemotherapy	272
diagnostic procedures	22
doctor visit	1664
hospital care	97
inpatient care	97
lab tests	1239
minimally invasive procedures	438

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Frederick Greiner Barr, MD.

**Gender**
Male	165
Female	298

**Ethnicity**
Black / African American	59
Asian / Pacific Islander	8
Non-Hispanic White	370
Native American / Alaskan Native	0
Hispanic	1
Other	2

**Age**
75 to 84	186
85 and over	73
Less than 65	9
65 to 74	143

Average of Total of Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD From 2012 - 2022

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

Hypertension	54
High Cholesterol	46
Stroke	4
Ischemic Heart Disease	26
Depression	13
Chronic Kidney Disease	23
Asthma	6
Osteoporosis	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	8
Diabetes	19
Atrial Fibrillation	11
Dementia	9
Cancer	39

Education & Training

Dr. Frederick Greiner Barr, MD graduated from Northwestern University, Feinberg School of Medicine in 1975. He has a state license in Maryland.

Medical School: Northwestern University, Feinberg School of Medicine (1975)

Licensed In: Maryland

Affiliations & Hospitals

Dr. Frederick Greiner Barr, MD is associated with these hospitals and organizations:

RCCA MD LLC

Ratings & Reviews

Dr. Frederick Greiner Barr, MD has a good overall rating with an average of 3.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Frederick Greiner Barr, MD from all over the web to help you find the right in Chevy Chase, MD.

Overall Rating

(1 Rating)

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General Payments

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

**Payments by Company**
Genentech USA, Inc.	$3,849 Avastin $678	Kadcyla $513	TECENTRIQ $513	Perjeta $441	TARCEVA $324	Other $1,380
Novartis Pharmaceuticals Corporation	$3,049 TASIGNA $396	AFINITOR $332	Exjade $255	PROMACTA $216	VOTRIENT $205	Other $1,644
E.R. Squibb & Sons, L.L.C.	$3,016 OPDIVO $2,238	SPRYCEL $223	YERVOY $196	EMPLICITI $169	ELIQUIS $82	Other $108
Janssen Biotech, Inc.	$2,724 IMBRUVICA $1,015	DARZALEX $821	Erleada $249	RYBREVANT $209	ZYTIGA $67	Other $362
AstraZeneca Pharmaceuticals LP	$2,571 LYNPARZA $755	CALQUENCE $457	FASLODEX $395	IMFINZI $358	TAGRISSO $355	Other $249
Other	$30,012 IMBRUVICA $1,007	Gilotrif $889	KEYTRUDA $872	Revlimid $856	Lenvima $838	Other $25,550

**Types of Payments**
Food and Beverage	$43,302
Education	$1,668
Consulting Fee	$250

Ownership and Interest Payments

This table describes ownership payments received by Dr. Frederick Greiner Barr, MD.

DARA Biosciences, Inc.	2013	$0.00	Physician Covered Recipient	None
DARA Biosciences, Inc.	2013	$0.00	Physician Covered Recipient	None
DARA Biosciences, Inc.	2013	$0.00	Physician Covered Recipient	None
DARA Biosciences, Inc.	2013	$0.00	Physician Covered Recipient	None
DARA Biosciences, Inc.	2013	$0.00	Physician Covered Recipient	None
DARA Biosciences, Inc.	2013	$0.00	Physician Covered Recipient	None

Biography

Dr. Frederick Barr is an adult hematology, adult oncology, and medical oncology specialist in Chevy Chase, MD. He attended medical school at Northwestern University, Feinberg School of Medicine.

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Dr. Frederick Greiner Barr, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Frederick Greiner Barr, MD 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 Dr. Frederick Greiner Barr, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Frederick Greiner Barr, 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. Frederick Greiner Barr, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Ownership and Interest Payments

Biography

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