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Home > PA Providers > Family Physicians & Family Medicine Specialists

Dr. William Joseph Liaw, DO

Accepting New Patients

(323 Ratings)

Specializes in: Family Medicine

Philadelphia College of Osteopathic Medicine (1994)

2550 Route 100 Suite 220
Macungie, PA 18062

(610) 628-7111

Dr. William Joseph Liaw, DO is a family medicine practitioner in Macungie, PA specializing in family medicine. He graduated from Philadelphia College of Osteopathic Medicine in 1994 and has 32 years of experience. Dr. William Joseph Liaw, DO is affiliated with St. Luke's University Health Network.

Office Locations

2550 Route 100 Suite 220
Macungie, PA 18062

open_in_new

In The News

“Survivors: In addition to his wife, daughter, MarySue Rother and her husband, John, of Whitehall; son, Dr. William J. Liaw of Allentown; three grandchildren, John, Melinda and Gracia Rother; two...”—"Dr. Michael Liaw", The Morning Call, May 2009

Noteworthy Medicare Patient Procedures Performed by Dr. William Joseph Liaw, DO in 2023

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

Top 25%

By Volume:

flu shot

preventive care

In 2012, Dr. William Joseph Liaw, DO performed more flu shot, and preventive care procedures for Medicare patients than 75% of providers in related specialties within Pennsylvania.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William Joseph Liaw, DO treated as a family medicine practitioner in Macungie, PA during 2012 were blood draw, preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. William Joseph Liaw, DO for Medicare patients.

blood draw	192
doctor visit	590
lab tests	17
preventive care	97
thoracic (chest) imaging	16
vaccines	97
X-rays	16

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William Joseph Liaw, DO treated as a family medicine practitioner in Macungie, PA during 2013 were blood draw, preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. William Joseph Liaw, DO for Medicare patients.

blood draw	186
doctor visit	659
lab tests	23
preventive care	96
vaccines	96

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William Joseph Liaw, DO.

**Gender**
Male	138
Female	210

**Ethnicity**
Non-Hispanic White	335
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	168
From 75 to 84	99
85 and over	43
Less than 65	38

Conditions of Medicare patients treated by Dr. William Joseph Liaw, DO in 2013

Hypertension	72
High Cholesterol	72
Stroke	5
Ischemic Heart Disease	26
Depression	24
Chronic Kidney Disease	11
Asthma	12
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	11
Diabetes	30
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William Joseph Liaw, DO treated as a family medicine practitioner in Macungie, PA during 2014 were blood draw, preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. William Joseph Liaw, DO for Medicare patients.

blood draw	185
doctor visit	714
lab tests	25
preventive care	147
vaccines	147

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William Joseph Liaw, DO.

**Gender**
Male	180
Female	223

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

**Age**
From 65 to 74	195
From 75 to 84	123
85 and over	49
Less than 65	36

Conditions of Medicare patients treated by Dr. William Joseph Liaw, DO in 2014

Hypertension	73
High Cholesterol	72
Stroke	4
Ischemic Heart Disease	30
Depression	19
Chronic Kidney Disease	13
Asthma	7
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	29
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William Joseph Liaw, DO treated as a family medicine practitioner in Macungie, PA during 2015 were preventive care, vaccines, blood draw and lab tests.

Volume of procedures performed by Dr. William Joseph Liaw, DO for Medicare patients.

blood draw	194
doctor visit	851
lab tests	29
preventive care	306
vaccines	280

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William Joseph Liaw, DO.

**Gender**
Male	408
Female	452

**Ethnicity**
Non-Hispanic White	822
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	448
From 75 to 84	224
85 and over	102
Less than 65	86

Conditions of Medicare patients treated by Dr. William Joseph Liaw, DO in 2015

Hypertension	67
High Cholesterol	69
Stroke	3
Ischemic Heart Disease	29
Depression	19
Chronic Kidney Disease	17
Asthma	12
Osteoperosis	6
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	11
Diabetes	30
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William Joseph Liaw, DO treated as a family medicine practitioner in Macungie, PA during 2016 were preventive care, vaccines, blood draw and lab tests.

Volume of procedures performed by Dr. William Joseph Liaw, DO for Medicare patients.

blood draw	215
doctor visit	968
lab tests	25
preventive care	232
vaccines	217

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William Joseph Liaw, DO.

**Gender**
Male	233
Female	251

**Ethnicity**
Non-Hispanic White	462
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	256
From 75 to 84	129
85 and over	54
Less than 65	45

Conditions of Medicare patients treated by Dr. William Joseph Liaw, DO in 2016

Hypertension	71
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	25
Depression	19
Chronic Kidney Disease	21
Asthma	13
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	29
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William Joseph Liaw, DO treated as a family medicine practitioner in Macungie, PA during 2017 were preventive care, vaccines, blood draw and lab tests.

Volume of procedures performed by Dr. William Joseph Liaw, DO for Medicare patients.

blood draw	170
cardiac procedures	12
doctor visit	808
lab tests	14
preventive care	225
vaccines	194

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William Joseph Liaw, DO.

**Gender**
Male	194
Female	184

**Ethnicity**
Non-Hispanic White	357
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	211
From 75 to 84	94
85 and over	36
Less than 65	37

Conditions of Medicare patients treated by Dr. William Joseph Liaw, DO in 2017

Hypertension	72
High Cholesterol	74
Stroke	4
Ischemic Heart Disease	20
Depression	19
Chronic Kidney Disease	22
Asthma	6
Osteoperosis	9
Atrial Fibrilation	8
Heart Failure	8
Chronic Obstructive Pulmonary Disease	9
Diabetes	27
Dementia	4
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William Joseph Liaw, DO treated as a family medicine practitioner in Macungie, PA during 2018 were preventive care, vaccines, blood draw and eye procedures.

Volume of procedures performed by Dr. William Joseph Liaw, DO for Medicare patients.

blood draw	167
doctor visit	864
eye procedures	35
lab tests	20
preventive care	204
vaccines	190

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William Joseph Liaw, DO.

**Gender**
Male	198
Female	199

**Ethnicity**
Non-Hispanic White	379
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	105
85 and over	34
Less than 65	37

Conditions of Medicare patients treated by Dr. William Joseph Liaw, DO in 2018

Hypertension	67
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	20
Depression	21
Chronic Kidney Disease	22
Asthma	7
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	8
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William Joseph Liaw, DO treated as a family medicine practitioner in Macungie, PA during 2019 were preventive care, vaccines, blood draw and lab tests.

Volume of procedures performed by Dr. William Joseph Liaw, DO for Medicare patients.

blood draw	33
doctor visit	838
lab tests	16
preventive care	174
vaccines	163

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William Joseph Liaw, DO.

**Gender**
Male	191
Female	181

**Ethnicity**
Non-Hispanic White	349
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	204
From 75 to 84	105
85 and over	32
Less than 65	31

Conditions of Medicare patients treated by Dr. William Joseph Liaw, DO in 2019

Hypertension	70
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	23
Depression	23
Chronic Kidney Disease	26
Asthma	8
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William Joseph Liaw, DO treated as a family medicine practitioner in Macungie, PA during 2020 were preventive care and vaccines.

Volume of procedures performed by Dr. William Joseph Liaw, DO for Medicare patients.

doctor visit	820
preventive care	233
vaccines	213

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William Joseph Liaw, DO.

**Gender**
Male	205
Female	190

**Ethnicity**
Non-Hispanic White	376
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	215
From 75 to 84	113
85 and over	31
Less than 65	36

Conditions of Medicare patients treated by Dr. William Joseph Liaw, DO in 2020

Hypertension	67
High Cholesterol	72
Stroke	5
Ischemic Heart Disease	21
Depression	20
Chronic Kidney Disease	25
Asthma	7
Osteoperosis	9
Atrial Fibrilation	8
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	28
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William Joseph Liaw, DO treated as a family medicine practitioner in Macungie, PA during 2021 were preventive care and vaccines.

Volume of procedures performed by Dr. William Joseph Liaw, DO for Medicare patients.

doctor visit	692
preventive care	140
vaccines	116

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William Joseph Liaw, DO.

**Gender**
Male	186
Female	159

**Ethnicity**
Non-Hispanic White	327
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	187
From 75 to 84	99
85 and over	28
Less than 65	31

Conditions of Medicare patients treated by Dr. William Joseph Liaw, DO in 2021

Hypertension	68
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	20
Depression	20
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	10
Atrial Fibrilation	8
Heart Failure	8
Chronic Obstructive Pulmonary Disease	9
Diabetes	27
Dementia	5
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. William Joseph Liaw, DO treated as a family medicine practitioner in Macungie, PA during 2022 were preventive care and vaccines.

Volume of procedures performed by Dr. William Joseph Liaw, DO for Medicare patients.

doctor visit	638
preventive care	87
vaccines	87

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. William Joseph Liaw, DO.

**Gender**
Male	175
Female	154

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

**Age**
From 65 to 74	170
From 75 to 84	110
85 and over	24
Less than 65	25

Conditions of Medicare patients treated by Dr. William Joseph Liaw, DO in 2022

Hypertension	74
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	19
Depression	21
Chronic Kidney Disease	28
Asthma	12
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	10
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	0
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. William Joseph Liaw, DO for Medicare patients.

The highest averages for the top procedures that Dr. William Joseph Liaw, DO treated as a family medicine practitioner in Macungie, PA were preventive care, blood draw, vaccines and eye procedures.

blood draw	167
cardiac procedures	12
doctor visit	767
eye procedures	35
lab tests	21
preventive care	176
thoracic (chest) imaging	16
vaccines	163
X-rays	16

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. William Joseph Liaw, DO.

**Gender**
Male	191
Female	200

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	373
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	109
85 and over	39
Less than 65	36
65 to 74	206

Average of Total of Conditions of Medicare patients treated by Dr. William Joseph Liaw, DO From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. William Joseph Liaw, DO treated were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	63
High Cholesterol	66
Stroke	4
Ischemic Heart Disease	21
Depression	18
Chronic Kidney Disease	19
Asthma	8
Osteoporosis	8
Heart Failure	9
Chronic Obstructive Pulmonary Disease	9
Diabetes	26
Atrial Fibrillation	9
Dementia	4
Cancer	10

Education & Training

Dr. William Joseph Liaw, DO graduated from Philadelphia College of Osteopathic Medicine in 1994. He completed residency at Suburban Community Hospital. He is certified by the Board Certification: Family Medicine and has a state license in Pennsylvania.

Medical School: Philadelphia College of Osteopathic Medicine (1994)

Residency: Suburban Community Hospital (1997)

Board Certification: Board Certification: Family Medicine

Licensed In: Pennsylvania

Affiliations & Hospitals

Dr. William Joseph Liaw, DO is associated with these hospitals and organizations:

St. Luke's University Health Network

Ratings & Reviews

Dr. William Joseph Liaw, DO has an exceptional overall rating with an average of 5.0 out of 5 stars based on 323 ratings. We collect ratings and reviews of Dr. William Joseph Liaw, DO from all over the web to help you find the right in Macungie, PA.

Overall Rating

(323 Ratings)

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General Payments

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

**Payments by Company**
Novo Nordisk Inc	$760 Victoza $425	Tresiba $127	Saxenda $75	NovoLog $26	Xultophy 100/3.6 $25	Other $83
Pfizer Inc.	$568 LYRICA $312	EUCRISA $132	VIAGRA $46	ELIQUIS $45	CHANTIX $11	Other $21
GlaxoSmithKline, LLC.	$534 ANORO $192	BREO $175	SHINGRIX $31	INCRUSE $26	TANZEUM $14	Other $96
Merck Sharp & Dohme Corporation	$323 BELSOMRA $111	STEGLATRO $83	JANUMET XR $63	DULERA $38	GARDASIL9 $17	Other $11
Janssen Pharmaceuticals, Inc	$221 INVOKANA $172	XARELTO $35	INVOKAMET $14
Other	$1,955 ELIQUIS $131	VYVANSE $98	Brovana $97	Vesicare $96	Brintellix $95	Other $1,437

**Types of Payments**
Food and Beverage	$4,120
Education	$242

Biography

Dr. William Liaw specializes in family medicine. He is rated highly by his patients. He is professionally affiliated with St. Luke's University Health Network. Dr. Liaw's practice in Macungie, PA is open to new patients as reported by Doctor.com. He attended medical school at Philadelphia College of Osteopathic Medicine.