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Dr. Margaret M. Shaffer, MD

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Specializes in: Pathology

5255 Loughboro Road Nw
Washington, DC 20016

(202) 537-4455

Dr. Margaret M. Shaffer, MD is a pathologist in Washington, DC specializing in pathology.

Office Locations

5255 Loughboro Road Nw
Washington, DC 20016

(202) 537-4455

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2012 were lab tests, consultation and cytology.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	108
cytology	82
lab tests	183

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2013 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	61
cytology	81
lab tests	361

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	270
Female	433

**Ethnicity**
Non-Hispanic White	581
Black	72
Hispanic	12
Asian	14
Other	24
Native American	0

**Age**
From 65 to 74	349
From 75 to 84	241
85 and over	96
Less than 65	17

Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD in 2013

Hypertension	64
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	32
Depression	18
Chronic Kidney Disease	17
Asthma	9
Osteoperosis	12
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	22
Dementia	6
Cancer	32

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2014 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	58
cytology	142
lab tests	194

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	267
Female	504

**Ethnicity**
Non-Hispanic White	617
Black	100
Hispanic	0
Asian	15
Other	25
Native American	0

**Age**
From 65 to 74	381
From 75 to 84	267
85 and over	88
Less than 65	35

Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD in 2014

Hypertension	65
High Cholesterol	57
Stroke	6
Ischemic Heart Disease	29
Depression	17
Chronic Kidney Disease	17
Asthma	8
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	21
Dementia	10
Cancer	27

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2015 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	17
cytology	61
lab tests	152

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	588
Female	1032

**Ethnicity**
Non-Hispanic White	1280
Black	196
Hispanic	52
Asian	36
Other	56
Native American	0

**Age**
From 65 to 74	794
From 75 to 84	540
85 and over	214
Less than 65	72

Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD in 2015

Hypertension	68
High Cholesterol	61
Stroke	3
Ischemic Heart Disease	27
Depression	21
Chronic Kidney Disease	18
Asthma	13
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	20
Dementia	10
Cancer	27

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2016 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	56
cytology	152
lab tests	238

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	429
Female	693

**Ethnicity**
Non-Hispanic White	876
Black	156
Hispanic	25
Asian	0
Other	39
Native American	0

**Age**
From 65 to 74	535
From 75 to 84	399
85 and over	143
Less than 65	45

Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD in 2016

Hypertension	66
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	30
Depression	18
Chronic Kidney Disease	23
Asthma	16
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	22
Dementia	8
Cancer	26

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2017 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	79
cytology	164
lab tests	219

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	384
Female	550

**Ethnicity**
Non-Hispanic White	727
Black	109
Hispanic	27
Asian	26
Other	45
Native American	0

**Age**
From 65 to 74	456
From 75 to 84	324
85 and over	122
Less than 65	32

Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD in 2017

Hypertension	66
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	32
Depression	23
Chronic Kidney Disease	23
Asthma	10
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	20
Dementia	9
Cancer	29

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2018 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	47
cytology	133
lab tests	231

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	457
Female	692

**Ethnicity**
Non-Hispanic White	878
Black	143
Hispanic	28
Asian	40
Other	60
Native American	0

**Age**
From 65 to 74	562
From 75 to 84	429
85 and over	126
Less than 65	32

Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD in 2018

Hypertension	68
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	31
Depression	23
Chronic Kidney Disease	25
Asthma	12
Osteoperosis	13
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	22
Dementia	7
Cancer	29

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2019 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	52
cytology	102
lab tests	174

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	503
Female	772

**Ethnicity**
Non-Hispanic White	956
Black	188
Hispanic	31
Asian	41
Other	59
Native American	0

**Age**
From 65 to 74	615
From 75 to 84	474
85 and over	142
Less than 65	44

Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD in 2019

Hypertension	70
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	30
Depression	24
Chronic Kidney Disease	25
Asthma	11
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	22
Dementia	8
Cancer	26

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2020 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	46
cytology	69
lab tests	133

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	284
Female	420

**Ethnicity**
Non-Hispanic White	532
Black	91
Hispanic	22
Asian	13
Other	46
Native American	0

**Age**
From 65 to 74	306
From 75 to 84	294
85 and over	87
Less than 65	17

Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD in 2020

Hypertension	65
High Cholesterol	65
Stroke	6
Ischemic Heart Disease	35
Depression	21
Chronic Kidney Disease	25
Asthma	9
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	11
Chronic Obstructive Pulmonary Disease	8
Diabetes	22
Dementia	8
Cancer	29

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2021 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	40
cytology	90
lab tests	197

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	394
Female	591

**Ethnicity**
Non-Hispanic White	738
Black	141
Hispanic	27
Asian	28
Other	51
Native American	0

**Age**
From 65 to 74	419
From 75 to 84	405
85 and over	128
Less than 65	33

Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD in 2021

Hypertension	68
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	35
Depression	22
Chronic Kidney Disease	27
Asthma	12
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	10
Diabetes	22
Dementia	8
Cancer	29

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2022 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	33
cytology	153
lab tests	199

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	325
Female	463

**Ethnicity**
Non-Hispanic White	580
Black	114
Hispanic	18
Asian	28
Other	48
Native American	0

**Age**
From 65 to 74	310
From 75 to 84	368
85 and over	90
Less than 65	20

Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD in 2022

Hypertension	73
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	24
Depression	19
Chronic Kidney Disease	18
Asthma	12
Osteoperosis	17
Atrial Fibrilation	17
Heart Failure	12
Chronic Obstructive Pulmonary Disease	14
Diabetes	23
Dementia	5
Cancer	43

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2023 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	37
cytology	188
lab tests	290

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	386
Female	531

**Ethnicity**
Non-Hispanic White	671
Black	119
Hispanic	0
Asian	36
Other	65
Native American	0

**Age**
From 65 to 74	340
From 75 to 84	415
85 and over	141
Less than 65	21

Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD in 2023

Hypertension	73
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	27
Depression	18
Chronic Kidney Disease	19
Asthma	13
Osteoperosis	19
Atrial Fibrilation	19
Heart Failure	12
Chronic Obstructive Pulmonary Disease	16
Diabetes	24
Dementia	5
Cancer	42

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC during 2024 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

consultation	40
cytology	143
lab tests	234

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	299
Female	495

**Ethnicity**
Non-Hispanic White	570
Black	114
Hispanic	28
Asian	33
Other	49
Native American	0

**Age**
From 65 to 74	324
From 75 to 84	357
85 and over	96
Less than 65	17

Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD in 2024

Hypertension	70
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	26
Depression	18
Chronic Kidney Disease	20
Asthma	14
Osteoperosis	23
Atrial Fibrilation	16
Heart Failure	11
Chronic Obstructive Pulmonary Disease	15
Diabetes	24
Dementia	6
Cancer	38

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Margaret M. Shaffer, MD for Medicare patients.

The highest averages for the top procedures that Dr. Margaret M. Shaffer, MD treated as a pathologist in Washington, DC were lab tests, cytology and consultation.

consultation	51
cytology	120
lab tests	215

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Margaret M. Shaffer, MD.

**Gender**
Male	352
Female	552

**Ethnicity**
Black / African American	118
Asian / Pacific Islander	23
Non-Hispanic White	692
Hispanic	20
Native American / Alaskan Native	0
Other	43

**Age**
85 and over	113
75 to 84	347
Less than 65	29
65 to 74	414

Average of Total of Conditions of Medicare patients treated by Dr. Margaret M. Shaffer, MD From 2012 - 2024

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

Hypertension	62
High Cholesterol	59
Stroke	5
Ischemic Heart Disease	27
Depression	18
Chronic Kidney Disease	19
Asthma	10
Osteoporosis	12
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	20
Atrial Fibrillation	12
Cancer	29
Dementia	6