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Dr. William Sanderson Twaddell, MD

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Specializes in: Anatomic Pathology

Columbia University, College of Physicians and Surgeons (2004)

100 Brown Street
Chestertown, MD 21620

(410) 778-3300

Dr. William Sanderson Twaddell, MD is an anatomic pathologist in Chestertown, MD specializing in anatomic pathology. He graduated from Columbia University, College of Physicians and Surgeons in 2004 and has 21 years of experience. Dr. William Sanderson Twaddell, MD is affiliated with University of Maryland Medical System and UNIV OF MD PATHOLOGY ASSOCIATES P A.

Office Locations

Address:

100 Brown Street
Chestertown, MD 21620

Address:

22 S Greene Street Nbw73
Baltimore, MD 21201

consultation	117
lab tests	770

**Gender**
Male	341
Female	331

**Ethnicity**
Non-Hispanic White	388
Black	253
Hispanic	0
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	248
From 75 to 84	131
85 and over	31
Less than 65	262

Hypertension	75
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	40
Depression	30
Chronic Kidney Disease	45
Asthma	12
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	30
Chronic Obstructive Pulmonary Disease	20
Diabetes	47
Dementia	7
Cancer	20

consultation	124
lab tests	1157
second opinions	29

**Gender**
Male	392
Female	374

**Ethnicity**
Non-Hispanic White	432
Black	305
Hispanic	0
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	318
From 75 to 84	153
85 and over	34
Less than 65	261

Hypertension	75
High Cholesterol	59
Stroke	6
Ischemic Heart Disease	40
Depression	30
Chronic Kidney Disease	48
Asthma	11
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	33
Chronic Obstructive Pulmonary Disease	19
Diabetes	45
Dementia	8
Cancer	19

consultation	190
lab tests	618
second opinions	12

**Gender**
Male	860
Female	836

**Ethnicity**
Non-Hispanic White	992
Black	610
Hispanic	24
Asian	44
Other	26
Native American	0

**Age**
From 65 to 74	720
From 75 to 84	334
85 and over	82
Less than 65	560

Hypertension	75
High Cholesterol	56
Stroke	8
Ischemic Heart Disease	41
Depression	33
Chronic Kidney Disease	47
Asthma	19
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	30
Chronic Obstructive Pulmonary Disease	23
Diabetes	42
Dementia	7
Cancer	17

consultation	219
lab tests	666

**Gender**
Male	512
Female	506

**Ethnicity**
Non-Hispanic White	553
Black	410
Hispanic	17
Asian	21
Other	17
Native American	0

**Age**
From 65 to 74	443
From 75 to 84	177
85 and over	43
Less than 65	355

Hypertension	75
High Cholesterol	60
Stroke	7
Ischemic Heart Disease	40
Depression	35
Chronic Kidney Disease	50
Asthma	28
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	25
Chronic Obstructive Pulmonary Disease	23
Diabetes	44
Dementia	13
Cancer	21

consultation	296
lab tests	628

**Gender**
Male	494
Female	438

**Ethnicity**
Non-Hispanic White	524
Black	366
Hispanic	15
Asian	15
Other	12
Native American	0

**Age**
From 65 to 74	392
From 75 to 84	193
85 and over	54
Less than 65	293

Hypertension	75
High Cholesterol	56
Stroke	7
Ischemic Heart Disease	45
Depression	35
Chronic Kidney Disease	57
Asthma	13
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	27
Chronic Obstructive Pulmonary Disease	24
Diabetes	46
Dementia	17
Cancer	22

consultation	230
lab tests	509

**Gender**
Male	461
Female	430

**Ethnicity**
Non-Hispanic White	474
Black	369
Hispanic	12
Asian	17
Other	19
Native American	0

**Age**
From 65 to 74	374
From 75 to 84	181
85 and over	36
Less than 65	300

Hypertension	75
High Cholesterol	63
Stroke	8
Ischemic Heart Disease	44
Depression	36
Chronic Kidney Disease	53
Asthma	13
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	27
Chronic Obstructive Pulmonary Disease	24
Diabetes	43
Dementia	15
Cancer	23

consultation	198
lab tests	433

**Gender**
Male	348
Female	351

**Ethnicity**
Non-Hispanic White	374
Black	277
Hispanic	15
Asian	16
Other	17
Native American	0

**Age**
From 65 to 74	317
From 75 to 84	141
85 and over	29
Less than 65	212

Hypertension	75
High Cholesterol	62
Stroke	8
Ischemic Heart Disease	40
Depression	39
Chronic Kidney Disease	53
Asthma	13
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	25
Chronic Obstructive Pulmonary Disease	22
Diabetes	43
Dementia	14
Cancer	21

consultation	237
lab tests	360

**Gender**
Male	250
Female	273

**Ethnicity**
Non-Hispanic White	310
Black	181
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	240
From 75 to 84	101
85 and over	29
Less than 65	153

Hypertension	75
High Cholesterol	63
Stroke	8
Ischemic Heart Disease	41
Depression	35
Chronic Kidney Disease	51
Asthma	11
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	22
Chronic Obstructive Pulmonary Disease	21
Diabetes	42
Dementia	13
Cancer	21

consultation	311
lab tests	760

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. William Sanderson Twaddell, MD for Medicare patients.

The highest averages for the top procedures that Dr. William Sanderson Twaddell, MD treated as an anatomic pathologist in Chestertown, MD were lab tests, consultation and second opinions.

consultation	213
lab tests	657
second opinions	20

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. William Sanderson Twaddell, MD.

**Gender**
Female	353
Male	365

**Ethnicity**
Black / African American	277
Asian / Pacific Islander	13
Non-Hispanic White	404
Native American / Alaskan Native	0
Hispanic	8
Other	10

**Age**
85 and over	33
75 to 84	141
Less than 65	239
65 to 74	305

Average of Total of Conditions of Medicare patients treated by Dr. William Sanderson Twaddell, MD From 2013 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. William Sanderson Twaddell, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	60
High Cholesterol	47
Stroke	5
Ischemic Heart Disease	33
Depression	27
Chronic Kidney Disease	40
Asthma	12
Osteoporosis	6
Heart Failure	21
Chronic Obstructive Pulmonary Disease	17
Diabetes	35
Atrial Fibrillation	10
Dementia	9
Cancer	16

Education & Training

Dr. William Sanderson Twaddell, MD graduated from Columbia University, College of Physicians and Surgeons in 2004. He completed residency at Columbia University Medical Center. He is certified by the UM Shore Regional Health - Chestertown UM Shore Regional Health - Dorchester/Easton University of Maryland Medical Center University of Maryland Medical Center Midtown Campus and has a state license in Maryland.

Medical School: Columbia University, College of Physicians and Surgeons (2004)

Residency: Columbia University Medical Center (2007)

Board Certification: UM Shore Regional Health - Chestertown UM Shore Regional Health - Dorchester/Easton University of Maryland Medical Center University of Maryland Medical Center Midtown Campus

Licensed In: Maryland

Affiliations & Hospitals

Dr. William Sanderson Twaddell, MD is associated with these hospitals and organizations:

University of Maryland Medical System

UNIV OF MD PATHOLOGY ASSOCIATES P A

Ratings & Reviews

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General Payments

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

**Payments by Company**
Genentech USA, Inc.	$82 $82
Merck Sharp & Dohme LLC	$33 KEYTRUDA $33
Lilly USA, LLC	$24 $24
Foundation Medicine, Inc.	$20 FOUNDATIONONE LIQUID CDX $20
Merck Sharp & Dohme Corporation	$11 KEYTRUDA $11

**Types of Payments**
Food and Beverage	$169

Biography

Dr. William Twaddell practices anatomic pathology in Baltimore, MD and Chestertown, MD. He is affiliated with the University of Maryland Medical System. He obtained his medical school training at Columbia University, College of Physicians and Surgeons and performed his residency at Columbia University Medical Center.

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Dr. William Sanderson Twaddell, MD

Office Locations

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Sanderson Twaddell, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Sanderson Twaddell, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Sanderson Twaddell, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Sanderson Twaddell, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Sanderson Twaddell, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Sanderson Twaddell, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Sanderson Twaddell, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Sanderson Twaddell, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Average Medicare Procedure Volume From 2013 - 2021

Average Medicare Patient Data From 2013 - 2021

Average of Total of Conditions of Medicare patients treated by Dr. William Sanderson Twaddell, MD From 2013 - 2021

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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