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Home > PA Providers > Urologists

Dr. William G. Merriam, MD

Accepting New Patients

(Dr. William Merriam, M.D.)

(976 Ratings)

Specializes in: Urology (Urinary Tract Disease)

MCP Hahnemann School of Medicine

Professional interests include: warts

1055 Andrew Drive Suite A
West Chester, PA 19380

1-800-789-7366

Dr. William G. Merriam, MD is an urologist in West Chester, PA specializing in urology (urinary tract disease). He graduated from MCP Hahnemann School of Medicine. Dr. William G. Merriam, MD is affiliated with Main Line Health and MidLantic Urology.

Office Locations

1055 Andrew Drive Suite A
West Chester, PA 19380

1-800-789-7366

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2 Industrial Boulevard Building C, Suite 120
Paoli, PA 19301

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213 Reeceville Road Suite 24
Coatesville, PA 19320

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915 Old Fern Hill Road Building B, Suite 202
West Chester, PA 19380

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Noteworthy Medicare Patient Procedures Performed by Dr. William G. Merriam, MD in 2023

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

Top 5%

By Volume:

cystoscopy

diagnostic cystoscopy

urologic procedures

In 2023, Dr. William G. Merriam, MD performed more cystoscopy, diagnostic cystoscopy, and urologic procedures procedures for Medicare patients than 95% of providers in related specialties within Pennsylvania.

Top 10%

By Volume:

minimally invasive procedures

potassium sensitivity test

In 2023, Dr. William G. Merriam, MD performed more minimally invasive procedures, and potassium sensitivity test procedures for Medicare patients than 90% of providers in related specialties within Pennsylvania.

Top 25%

By Volume:

chronic care

cystoscopic stone removal

cystoscopy with foreign body removal

cystoscopy with ureteral stent removal

inpatient hospital care

By Affordability:

blood draw

blood draw for lab tests

diagnostic cystoscopy

phlebotomy for lab tests

venipuncture

In 2012, among providers in related specialties within Pennsylvania, Dr. William G. Merriam, MD performed more chronic care, cystoscopic stone removal, cystoscopy with foreign body removal, cystoscopy with ureteral stent removal, and inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of them and he also had a list price for blood draw, blood draw for lab tests, diagnostic cystoscopy, phlebotomy for lab tests, and venipuncture (phlebotomy) that was lower than the list prices billed to Medicare by 75% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William G. Merriam, MD treated as an urologist in West Chester, PA during 2012 were urologic procedures, inpatient care, hospital care and lab tests.

Volume of procedures performed by Dr. William G. Merriam, MD for Medicare patients.

anorectal procedures	11
catheterization	14
cytology	12
diagnostic procedures	33
doctor visit	875
foreign body removal	12
hormone therapy	26
hospital care	540
inpatient care	540
lab tests	144
minimally invasive procedures	137
minor procedures	22
stent placement (stenting)	23
urologic procedures	623

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William G. Merriam, MD treated as an urologist in West Chester, PA during 2013 were urologic procedures, inpatient care, hospital care and lab tests.

Volume of procedures performed by Dr. William G. Merriam, MD for Medicare patients.

biological response modifier (BRM) therapy	29
catheterization	33
chemotherapy	29
cytology	126
diagnostic procedures	23
doctor visit	999
foreign body removal	15
hormone therapy	16
hospital care	500
inpatient care	500
lab tests	197
laser treatment	14
lithotripsy (stone fragmentation)	14
minimally invasive procedures	191
minor procedures	23
stent placement (stenting)	31
urologic procedures	691

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William G. Merriam, MD.

**Gender**
Male	565
Female	271

**Ethnicity**
Non-Hispanic White	748
Black	54
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	337
From 75 to 84	255
85 and over	172
Less than 65	72

Conditions of Medicare patients treated by Dr. William G. Merriam, MD in 2013

Hypertension	73
High Cholesterol	72
Stroke	9
Ischemic Heart Disease	49
Depression	25
Chronic Kidney Disease	43
Asthma	8
Osteoperosis	8
Atrial Fibrilation	22
Heart Failure	26
Chronic Obstructive Pulmonary Disease	20
Diabetes	34
Dementia	18
Cancer	21

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William G. Merriam, MD treated as an urologist in West Chester, PA during 2014 were urologic procedures, lab tests, inpatient care and hospital care.

Volume of procedures performed by Dr. William G. Merriam, MD for Medicare patients.

biological response modifier (BRM) therapy	36
catheterization	20
chemotherapy	36
cytology	18
diagnostic procedures	17
doctor visit	1089
foreign body removal	20
hormone therapy	31
hospital care	435
inpatient care	435
lab tests	573
laser treatment	12
lithotripsy (stone fragmentation)	12
minimally invasive procedures	234
minor procedures	17
neurostimulation	43
potassium test	25
stent placement (stenting)	34
urologic procedures	876

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William G. Merriam, MD.

**Gender**
Male	623
Female	263

**Ethnicity**
Non-Hispanic White	784
Black	57
Hispanic	0
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	401
From 75 to 84	265
85 and over	161
Less than 65	59

Conditions of Medicare patients treated by Dr. William G. Merriam, MD in 2014

Hypertension	72
High Cholesterol	71
Stroke	10
Ischemic Heart Disease	48
Depression	22
Chronic Kidney Disease	41
Asthma	6
Osteoperosis	7
Atrial Fibrilation	21
Heart Failure	26
Chronic Obstructive Pulmonary Disease	16
Diabetes	34
Dementia	16
Cancer	21

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William G. Merriam, MD treated as an urologist in West Chester, PA during 2015 were urologic procedures, lab tests, inpatient care and hospital care.

Volume of procedures performed by Dr. William G. Merriam, MD for Medicare patients.

ablation	25
biological response modifier (BRM) therapy	20
chemotherapy	20
cryotherapy	25
diagnostic procedures	19
doctor visit	1172
foreign body removal	21
hospital care	408
inpatient care	408
lab tests	866
laser treatment	39
lithotripsy (stone fragmentation)	14
minimally invasive procedures	296
minor procedures	19
neurostimulation	44
potassium test	37
stent placement (stenting)	42
urologic procedures	1026

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William G. Merriam, MD.

**Gender**
Male	1416
Female	550

**Ethnicity**
Non-Hispanic White	1766
Black	122
Hispanic	0
Asian	0
Other	40
Native American	0

**Age**
From 65 to 74	904
From 75 to 84	532
85 and over	376
Less than 65	154

Conditions of Medicare patients treated by Dr. William G. Merriam, MD in 2015

Hypertension	74
High Cholesterol	70
Stroke	11
Ischemic Heart Disease	49
Depression	24
Chronic Kidney Disease	40
Asthma	11
Osteoperosis	7
Atrial Fibrilation	20
Heart Failure	24
Chronic Obstructive Pulmonary Disease	15
Diabetes	33
Dementia	19
Cancer	21

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William G. Merriam, MD treated as an urologist in West Chester, PA during 2016 were urologic procedures, lab tests, inpatient care and hospital care.

Volume of procedures performed by Dr. William G. Merriam, MD for Medicare patients.

ablation	13
biological response modifier (BRM) therapy	43
blood draw	44
chemotherapy	43
cryotherapy	13
cytology	43
diagnostic procedures	29
doctor visit	1191
foreign body removal	13
hormone therapy	14
hospital care	362
inpatient care	362
lab tests	970
laser treatment	13
minimally invasive procedures	251
minor procedures	29
neurostimulation	26
potassium test	34
stent placement (stenting)	15
urologic procedures	1068

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William G. Merriam, MD.

**Gender**
Male	727
Female	280

**Ethnicity**
Non-Hispanic White	887
Black	55
Hispanic	24
Asian	13
Other	28
Native American	0

**Age**
From 65 to 74	461
From 75 to 84	324
85 and over	143
Less than 65	79

Conditions of Medicare patients treated by Dr. William G. Merriam, MD in 2016

Hypertension	72
High Cholesterol	66
Stroke	10
Ischemic Heart Disease	46
Depression	26
Chronic Kidney Disease	42
Asthma	18
Osteoperosis	7
Atrial Fibrilation	19
Heart Failure	24
Chronic Obstructive Pulmonary Disease	16
Diabetes	32
Dementia	19
Cancer	21

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William G. Merriam, MD treated as an urologist in West Chester, PA during 2017 were urologic procedures, lab tests, inpatient care and hospital care.

Volume of procedures performed by Dr. William G. Merriam, MD for Medicare patients.

anorectal procedures	14
biological response modifier (BRM) therapy	54
blood draw	88
catheterization	22
chemotherapy	54
diagnostic procedures	36
doctor visit	1353
foreign body removal	19
hormone therapy	20
hospital care	439
inpatient care	439
lab tests	1186
laser treatment	14
lithotripsy (stone fragmentation)	14
minimally invasive procedures	304
minor procedures	22
neurostimulation	37
potassium test	49
stent placement (stenting)	31
urologic procedures	1387

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William G. Merriam, MD.

**Gender**
Male	976
Female	339

**Ethnicity**
Non-Hispanic White	1171
Black	58
Hispanic	21
Asian	14
Other	51
Native American	0

**Age**
From 65 to 74	574
From 75 to 84	452
85 and over	202
Less than 65	87

Conditions of Medicare patients treated by Dr. William G. Merriam, MD in 2017

Hypertension	70
High Cholesterol	60
Stroke	8
Ischemic Heart Disease	44
Depression	25
Chronic Kidney Disease	42
Asthma	6
Osteoperosis	6
Atrial Fibrilation	20
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	30
Dementia	19
Cancer	22

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William G. Merriam, MD treated as an urologist in West Chester, PA during 2018 were urologic procedures, lab tests, inpatient care and hospital care.

Volume of procedures performed by Dr. William G. Merriam, MD for Medicare patients.

ablation	35
biological response modifier (BRM) therapy	69
blood draw	116
catheterization	38
chemotherapy	69
chronic care	21
cryotherapy	35
diagnostic procedures	41
doctor visit	1421
foreign body removal	30
hormone therapy	16
hospital care	488
inpatient care	488
lab tests	1374
laser treatment	58
lithotripsy (stone fragmentation)	41
minimally invasive procedures	457
minor procedures	41
neurostimulation	40
potassium test	47
stent placement (stenting)	53
suprapubic catheter replacement	16
urologic procedures	1741

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William G. Merriam, MD.

**Gender**
Male	1084
Female	309

**Ethnicity**
Non-Hispanic White	1228
Black	62
Hispanic	0
Asian	18
Other	67
Native American	0

**Age**
From 65 to 74	643
From 75 to 84	497
85 and over	195
Less than 65	58

Conditions of Medicare patients treated by Dr. William G. Merriam, MD in 2018

Hypertension	70
High Cholesterol	70
Stroke	7
Ischemic Heart Disease	44
Depression	24
Chronic Kidney Disease	42
Asthma	6
Osteoperosis	5
Atrial Fibrilation	20
Heart Failure	20
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	17
Cancer	23

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William G. Merriam, MD treated as an urologist in West Chester, PA during 2019 were urologic procedures, lab tests, chronic care and minimally invasive procedures.

Volume of procedures performed by Dr. William G. Merriam, MD for Medicare patients.

ablation	17
biological response modifier (BRM) therapy	65
blood draw	114
catheterization	26
chemotherapy	65
chronic care	487
cryotherapy	17
diagnostic procedures	16
doctor visit	1422
foreign body removal	21
hormone therapy	32
hospital care	366
inpatient care	366
lab tests	1261
laser treatment	17
lithotripsy (stone fragmentation)	19
minimally invasive procedures	399
minor procedures	16
neurostimulation	115
potassium test	39
stent placement (stenting)	24
urologic procedures	1472

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William G. Merriam, MD.

**Gender**
Male	1122
Female	319

**Ethnicity**
Non-Hispanic White	1276
Black	61
Hispanic	26
Asian	18
Other	60
Native American	0

**Age**
From 65 to 74	646
From 75 to 84	533
85 and over	183
Less than 65	79

Conditions of Medicare patients treated by Dr. William G. Merriam, MD in 2019

Hypertension	71
High Cholesterol	71
Stroke	7
Ischemic Heart Disease	41
Depression	24
Chronic Kidney Disease	41
Asthma	6
Osteoperosis	6
Atrial Fibrilation	18
Heart Failure	20
Chronic Obstructive Pulmonary Disease	14
Diabetes	30
Dementia	13
Cancer	26

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William G. Merriam, MD treated as an urologist in West Chester, PA during 2020 were chronic care, urologic procedures, lab tests and inpatient care.

Volume of procedures performed by Dr. William G. Merriam, MD for Medicare patients.

biological response modifier (BRM) therapy	39
blood draw	50
catheterization	31
chemotherapy	39
chronic care	741
doctor visit	1105
foreign body removal	12
hormone therapy	35
hospital care	189
inpatient care	189
lab tests	579
minimally invasive procedures	176
potassium test	29
urologic procedures	717

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William G. Merriam, MD.

**Gender**
Male	881
Female	180

**Ethnicity**
Non-Hispanic White	951
Black	42
Hispanic	14
Asian	12
Other	42
Native American	0

**Age**
From 65 to 74	499
From 75 to 84	369
85 and over	137
Less than 65	56

Conditions of Medicare patients treated by Dr. William G. Merriam, MD in 2020

Hypertension	68
High Cholesterol	69
Stroke	8
Ischemic Heart Disease	42
Depression	22
Chronic Kidney Disease	41
Asthma	5
Osteoperosis	4
Atrial Fibrilation	17
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	29
Dementia	13
Cancer	27

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William G. Merriam, MD treated as an urologist in West Chester, PA during 2021 were urologic procedures, chronic care, minimally invasive procedures and inpatient care.

Volume of procedures performed by Dr. William G. Merriam, MD for Medicare patients.

blood draw	32
catheterization	26
chronic care	609
doctor visit	1206
foreign body removal	26
hormone therapy	13
hospital care	266
inpatient care	266
lab tests	260
laser treatment	13
lithotripsy (stone fragmentation)	13
minimally invasive procedures	296
potassium test	37
stent placement (stenting)	35
urologic procedures	994

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William G. Merriam, MD.

**Gender**
Male	897
Female	197

**Ethnicity**
Non-Hispanic White	972
Black	50
Hispanic	0
Asian	0
Other	50
Native American	0

**Age**
From 65 to 74	471
From 75 to 84	441
85 and over	139
Less than 65	43

Conditions of Medicare patients treated by Dr. William G. Merriam, MD in 2021

Hypertension	69
High Cholesterol	71
Stroke	10
Ischemic Heart Disease	43
Depression	21
Chronic Kidney Disease	42
Asthma	5
Osteoperosis	7
Atrial Fibrilation	18
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Dementia	14
Cancer	26

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. William G. Merriam, MD treated as an urologist in West Chester, PA during 2022 were urologic procedures, chronic care, minimally invasive procedures and inpatient care.

Volume of procedures performed by Dr. William G. Merriam, MD for Medicare patients.

anorectal procedures	16
blood draw	43
catheterization	24
chronic care	324
diagnostic procedures	16
doctor visit	1269
foreign body removal	16
hormone therapy	16
hospital care	221
inpatient care	221
lab tests	81
laser treatment	14
lithotripsy (stone fragmentation)	14
minimally invasive procedures	277
potassium test	37
stent placement (stenting)	27
urologic procedures	1062

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. William G. Merriam, MD.

**Gender**
Male	912
Female	176

**Ethnicity**
Non-Hispanic White	960
Black	49
Hispanic	0
Asian	0
Other	57
Native American	0

**Age**
From 65 to 74	453
From 75 to 84	457
85 and over	134
Less than 65	44

Conditions of Medicare patients treated by Dr. William G. Merriam, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	39
Depression	18
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	10
Atrial Fibrilation	24
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Dementia	9
Cancer	30

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. William G. Merriam, MD for Medicare patients.

The highest averages for the top procedures that Dr. William G. Merriam, MD treated as an urologist in West Chester, PA were urologic procedures, lab tests, chronic care and inpatient care.

ablation	22
anorectal procedures	13
biological response modifier (BRM) therapy	44
blood draw	69
catheterization	26
chemotherapy	44
chronic care	436
cryotherapy	22
cytology	49
diagnostic procedures	25
doctor visit	1191
foreign body removal	18
hormone therapy	21
hospital care	383
inpatient care	383
lab tests	681
laser treatment	21
lithotripsy (stone fragmentation)	17
minimally invasive procedures	274
minor procedures	23
neurostimulation	50
potassium test	37
stent placement (stenting)	31
urologic procedures	1059

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. William G. Merriam, MD.

**Gender**
Male	836
Female	262

**Ethnicity**
Black / African American	55
Asian / Pacific Islander	6
Non-Hispanic White	976
Native American / Alaskan Native	0
Hispanic	9
Other	37

**Age**
75 to 84	375
85 and over	167
Less than 65	66
65 to 74	489

Average of Total of Conditions of Medicare patients treated by Dr. William G. Merriam, MD From 2012 - 2022

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

Hypertension	64
High Cholesterol	63
Stroke	8
Ischemic Heart Disease	40
Depression	21
Chronic Kidney Disease	36
Asthma	7
Osteoporosis	6
Heart Failure	19
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Atrial Fibrillation	18
Dementia	14
Cancer	21

Education & Training

Dr. William G. Merriam, MD graduated from MCP Hahnemann School of Medicine. He completed residency at UMass Memorial Medical Center. He is certified by the Board certifications: Urology and has a state license in Pennsylvania.

Medical School: MCP Hahnemann School of Medicine

Residency: UMass Memorial Medical Center

Board Certification: Board certifications: Urology (2009)

Licensed In: Pennsylvania

Affiliations & Hospitals

Dr. William G. Merriam, MD is associated with these hospitals and organizations:

Main Line Health

MidLantic Urology

Ratings & Reviews

Dr. William G. Merriam, MD has an exceptional overall rating with an average of 4.89 out of 5 stars based on 976 ratings. We collect ratings and reviews of Dr. William G. Merriam, MD from all over the web to help you find the right in West Chester, PA.

4.89

Overall Rating

(976 Ratings)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 1.0 2022-10-26

Unable to use this provider as no new patient scheduling available under 3 months

General Payments

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

**Payments by Company**
NeoTract Inc.	$1,577 Urolift - UL400 $1,395	Urolift $183
Astellas Pharma US Inc	$862 Vesicare $403	Myrbetriq $348	XTANDI $111
Dendreon Pharmaceuticals LLC	$694 PROVENGE $694
Bayer HealthCare Pharmaceuticals Inc.	$641 Xofigo $641
Pfizer Inc.	$557 XTANDI $324	PAXLOVID $78	VIAGRA $69	TALZENNA $48	SUTENT $27	Other $11
Other	$5,408 ZYTIGA $347	FIRMAGON $315	XTANDI $311	Lupron $282	Urolift System $251	Other $3,903

**Types of Payments**
Food and Beverage	$8,333
Travel and Lodging	$971
Education	$434

Biography

Dr. William Merriam specializes in urology (urinary tract disease) and practices in West Chester, PA, Coatesville, PA, and Paoli, PA. Patients gave him an average rating of 5.0 stars (out of 5). His clinical interests encompass warts. Dr. Merriam is affiliated with Main Line Health and Chester County Hospital. He has an open panel in Paoli, PA according to Penn Medicine. After attending MCP Hahnemann School of Medicine, Dr. Merriam completed his residency training at UMass Memorial Medical Center and Jefferson University Hospitals. He has received the distinction of Recognized annually in Philadelphia magazine's Top Docs issue from through.