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Dr. William Daniel Welsh, DO

(Dr. William D. Welsh, D.O.)

(No ratings)

Specializes in: Internal Medicine (Adult Medicine), Family Medicine and Geriatrics (Elderly Care)

Des Moines University, College of Osteopathic Medicine (1976)

7624 Painter Avenue #100
Whittier, CA 90602

(562) 945-9333

Dr. William Daniel Welsh, DO is an internist in Whittier, CA specializing in internal medicine (adult medicine), family medicine and geriatrics (elderly care). He graduated from Des Moines University, College of Osteopathic Medicine in 1976 and has 50 years of experience. Dr. William Daniel Welsh, DO is affiliated with PIH Health and MAGUIRE AND WELSH MEDICAL GROUP.

Office Locations

PIH Health

7624 Painter Avenue #100
Whittier, CA 90602

(562) 945-9333

(562) 945-8533

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In The News

“Mrs. Welsh is survived by her son, Dr. William Welsh of Whittier; her daughter-in-law, Mrs. Lynn Welsh; her grandsons, Dr. Sean Welsh and Ryan Welsh; and her great-grandson, Leo Welsh.”—"Bessie Welsh", The Orange County Register, August 2019

“A special thank you goes to Nick's doctor, Dr. William Welsh in Whittier, who gave him great care, both emotionally and physically, for many years.”—"Nicholas D. Mothershead", San Gabriel Valley Tribune, September 2015

Noteworthy Medicare Patient Procedures Performed by Dr. William Daniel Welsh, DO in 2023

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

Top 10%

By Affordability:

lab tests

urine tests

In 2023, Dr. William Daniel Welsh, DO had a list price for lab tests, and urine tests that was lower than the list prices billed to Medicare by 90% of providers in related specialties within California. 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.

Top 25%

By Volume:

impacted ear wax removal

By Affordability:

urinalysis

In 2012, among providers in related specialties within California, Dr. William Daniel Welsh, DO performed more impacted ear wax removal procedures for Medicare patients than 75% of them and he also had a list price for urinalysis 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 Daniel Welsh, DO treated as an internist in Whittier, CA during 2012 were inpatient care, hospital care, lab tests and nursing home care.

Volume of procedures performed by Dr. William Daniel Welsh, DO for Medicare patients.

abdominal imaging	27
aspiration	63
blood draw	82
cardiac procedures	21
diabetes management	245
doctor visit	1723
ear procedures	41
hospital care	937
injections	63
inpatient care	937
lab tests	607
musculoskeletal imaging	65
nursing home care	553
preventive care	204
removal of lesion (e.g. growth)	12
skin procedures	12
spinal procedures	40
thoracic (chest) imaging	49
ultrasound (sonogram)	48
vaccines	148
X-rays	154

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William Daniel Welsh, DO treated as an internist in Whittier, CA during 2013 were inpatient care, hospital care, lab tests and nursing home care.

Volume of procedures performed by Dr. William Daniel Welsh, DO for Medicare patients.

abdominal imaging	21
aspiration	81
blood draw	63
cardiac procedures	29
diabetes management	254
doctor visit	1861
ear procedures	44
hospital care	1257
injections	81
inpatient care	1257
lab tests	607
musculoskeletal imaging	70
nursing home care	444
preventive care	223
skin testing	12
spinal procedures	54
thoracic (chest) imaging	50
tuberculosis (TB) testing	12
ultrasound (sonogram)	67
vaccines	159
vascular procedures	17
X-rays	186

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William Daniel Welsh, DO.

**Gender**
Male	192
Female	359

**Ethnicity**
Non-Hispanic White	361
Black	0
Hispanic	159
Asian	19
Other	0
Native American	0

**Age**
From 65 to 74	173
From 75 to 84	158
85 and over	166
Less than 65	54

Conditions of Medicare patients treated by Dr. William Daniel Welsh, DO in 2013

Hypertension	69
High Cholesterol	47
Stroke	8
Ischemic Heart Disease	43
Depression	28
Chronic Kidney Disease	27
Asthma	11
Osteoperosis	15
Atrial Fibrilation	17
Heart Failure	28
Chronic Obstructive Pulmonary Disease	20
Diabetes	38
Dementia	35
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William Daniel Welsh, DO treated as an internist in Whittier, CA during 2014 were inpatient care, hospital care, lab tests and nursing home care.

Volume of procedures performed by Dr. William Daniel Welsh, DO for Medicare patients.

abdominal imaging	30
aspiration	51
blood draw	74
cardiac procedures	16
diabetes management	221
doctor visit	1695
ear procedures	38
hospital care	966
injections	51
inpatient care	966
lab tests	606
musculoskeletal imaging	39
nursing home care	421
preventive care	222
spinal procedures	49
thoracic (chest) imaging	37
ultrasound (sonogram)	59
vaccines	153
vascular procedures	13
X-rays	125

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William Daniel Welsh, DO.

**Gender**
Male	201
Female	343

**Ethnicity**
Non-Hispanic White	350
Black	0
Hispanic	165
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	177
From 75 to 84	158
85 and over	152
Less than 65	57

Conditions of Medicare patients treated by Dr. William Daniel Welsh, DO in 2014

Hypertension	70
High Cholesterol	52
Stroke	5
Ischemic Heart Disease	42
Depression	25
Chronic Kidney Disease	29
Asthma	12
Osteoperosis	14
Atrial Fibrilation	15
Heart Failure	30
Chronic Obstructive Pulmonary Disease	18
Diabetes	36
Dementia	32
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William Daniel Welsh, DO treated as an internist in Whittier, CA during 2015 were inpatient care, hospital care, lab tests and nursing home care.

Volume of procedures performed by Dr. William Daniel Welsh, DO for Medicare patients.

abdominal imaging	27
aspiration	74
blood draw	60
cardiac procedures	24
diabetes management	181
doctor visit	1698
ear procedures	56
hospital care	1058
injections	74
inpatient care	1058
lab tests	535
musculoskeletal imaging	18
nursing home care	457
preventive care	382
thoracic (chest) imaging	32
ultrasound (sonogram)	51
vaccines	319
X-rays	50

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William Daniel Welsh, DO.

**Gender**
Male	448
Female	690

**Ethnicity**
Non-Hispanic White	780
Black	0
Hispanic	304
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	372
From 75 to 84	328
85 and over	346
Less than 65	92

Conditions of Medicare patients treated by Dr. William Daniel Welsh, DO in 2015

Hypertension	70
High Cholesterol	51
Stroke	8
Ischemic Heart Disease	41
Depression	23
Chronic Kidney Disease	31
Asthma	17
Osteoperosis	15
Atrial Fibrilation	14
Heart Failure	28
Chronic Obstructive Pulmonary Disease	19
Diabetes	40
Dementia	29
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William Daniel Welsh, DO treated as an internist in Whittier, CA during 2016 were inpatient care, hospital care, lab tests and nursing home care.

Volume of procedures performed by Dr. William Daniel Welsh, DO for Medicare patients.

abdominal imaging	23
aspiration	104
blood draw	39
cardiac procedures	14
diabetes management	163
doctor visit	1541
ear procedures	53
hospital care	894
injections	104
inpatient care	894
lab tests	476
nursing home care	363
pelvic imaging	13
preventive care	164
spinal procedures	16
thoracic (chest) imaging	20
ultrasound (sonogram)	50
vaccines	111
X-rays	36

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William Daniel Welsh, DO.

**Gender**
Male	191
Female	299

**Ethnicity**
Non-Hispanic White	327
Black	0
Hispanic	143
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	153
From 75 to 84	148
85 and over	153
Less than 65	36

Conditions of Medicare patients treated by Dr. William Daniel Welsh, DO in 2016

Hypertension	75
High Cholesterol	57
Stroke	7
Ischemic Heart Disease	43
Depression	22
Chronic Kidney Disease	35
Asthma	23
Osteoperosis	14
Atrial Fibrilation	19
Heart Failure	30
Chronic Obstructive Pulmonary Disease	21
Diabetes	49
Dementia	28
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William Daniel Welsh, DO treated as an internist in Whittier, CA during 2017 were inpatient care, hospital care, nursing home care and lab tests.

Volume of procedures performed by Dr. William Daniel Welsh, DO for Medicare patients.

abdominal imaging	31
aspiration	65
blood draw	24
cardiac procedures	19
diabetes management	59
doctor visit	1387
ear procedures	42
hospital care	837
injections	65
inpatient care	837
lab tests	241
musculoskeletal imaging	13
nursing home care	322
pelvic imaging	23
preventive care	158
spinal procedures	25
thoracic (chest) imaging	36
ultrasound (sonogram)	85
vaccines	136
vascular procedures	12
X-rays	74

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William Daniel Welsh, DO.

**Gender**
Male	190
Female	290

**Ethnicity**
Non-Hispanic White	317
Black	0
Hispanic	139
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	143
From 75 to 84	152
85 and over	148
Less than 65	37

Conditions of Medicare patients treated by Dr. William Daniel Welsh, DO in 2017

Hypertension	75
High Cholesterol	59
Stroke	7
Ischemic Heart Disease	46
Depression	24
Chronic Kidney Disease	39
Asthma	11
Osteoperosis	17
Atrial Fibrilation	21
Heart Failure	30
Chronic Obstructive Pulmonary Disease	19
Diabetes	54
Dementia	30
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William Daniel Welsh, DO treated as an internist in Whittier, CA during 2018 were inpatient care, hospital care, nursing home care and lab tests.

Volume of procedures performed by Dr. William Daniel Welsh, DO for Medicare patients.

abdominal imaging	30
aspiration	43
blood draw	20
cardiac procedures	19
diabetes management	46
doctor visit	1165
ear procedures	34
hospital care	874
injections	43
inpatient care	874
lab tests	205
musculoskeletal imaging	54
neck imaging	13
nursing home care	266
pelvic imaging	25
preventive care	144
spinal procedures	27
ultrasound (sonogram)	87
vaccines	131
X-rays	81

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William Daniel Welsh, DO.

**Gender**
Male	192
Female	277

**Ethnicity**
Non-Hispanic White	303
Black	0
Hispanic	142
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	166
85 and over	155
Less than 65	28

Conditions of Medicare patients treated by Dr. William Daniel Welsh, DO in 2018

Hypertension	72
High Cholesterol	61
Stroke	8
Ischemic Heart Disease	44
Depression	22
Chronic Kidney Disease	41
Asthma	10
Osteoperosis	17
Atrial Fibrilation	18
Heart Failure	32
Chronic Obstructive Pulmonary Disease	21
Diabetes	47
Dementia	31
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William Daniel Welsh, DO treated as an internist in Whittier, CA during 2019 were inpatient care, hospital care, nursing home care and lab tests.

Volume of procedures performed by Dr. William Daniel Welsh, DO for Medicare patients.

abdominal imaging	34
aspiration	27
cardiac procedures	13
diabetes management	59
doctor visit	870
ear procedures	29
hospital care	681
injections	27
inpatient care	681
lab tests	176
nursing home care	340
pelvic imaging	21
preventive care	88
ultrasound (sonogram)	81
vaccines	74
vascular procedures	13

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William Daniel Welsh, DO.

**Gender**
Male	166
Female	253

**Ethnicity**
Non-Hispanic White	268
Black	0
Hispanic	124
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	104
From 75 to 84	163
85 and over	132
Less than 65	20

Conditions of Medicare patients treated by Dr. William Daniel Welsh, DO in 2019

Hypertension	75
High Cholesterol	62
Stroke	9
Ischemic Heart Disease	46
Depression	25
Chronic Kidney Disease	0
Asthma	10
Osteoperosis	16
Atrial Fibrilation	20
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	50
Dementia	32
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William Daniel Welsh, DO treated as an internist in Whittier, CA during 2020 were nursing home care, lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. William Daniel Welsh, DO for Medicare patients.

abdominal imaging	22
aspiration	36
cardiac procedures	15
diabetes management	30
doctor visit	785
ear procedures	24
injections	36
lab tests	116
nursing home care	332
pelvic imaging	27
preventive care	99
ultrasound (sonogram)	64
vaccines	99

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William Daniel Welsh, DO.

**Gender**
Male	135
Female	253

**Ethnicity**
Non-Hispanic White	238
Black	0
Hispanic	130
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	111
From 75 to 84	147
85 and over	112
Less than 65	18

Conditions of Medicare patients treated by Dr. William Daniel Welsh, DO in 2020

Hypertension	72
High Cholesterol	63
Stroke	7
Ischemic Heart Disease	45
Depression	26
Chronic Kidney Disease	40
Asthma	6
Osteoperosis	15
Atrial Fibrilation	14
Heart Failure	28
Chronic Obstructive Pulmonary Disease	15
Diabetes	49
Dementia	29
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William Daniel Welsh, DO treated as an internist in Whittier, CA during 2021 were nursing home care, ultrasound (sonogram), lab tests and preventive care.

Volume of procedures performed by Dr. William Daniel Welsh, DO for Medicare patients.

abdominal imaging	23
aspiration	28
cardiac procedures	12
diabetes management	25
doctor visit	827
ear procedures	27
injections	28
lab tests	69
nursing home care	352
pelvic imaging	28
preventive care	39
ultrasound (sonogram)	78
vaccines	39
vascular procedures	15

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William Daniel Welsh, DO.

**Gender**
Male	153
Female	252

**Ethnicity**
Non-Hispanic White	235
Black	0
Hispanic	154
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	114
From 75 to 84	147
85 and over	119
Less than 65	25

Conditions of Medicare patients treated by Dr. William Daniel Welsh, DO in 2021

Hypertension	75
High Cholesterol	69
Stroke	10
Ischemic Heart Disease	41
Depression	24
Chronic Kidney Disease	40
Asthma	6
Osteoperosis	16
Atrial Fibrilation	16
Heart Failure	24
Chronic Obstructive Pulmonary Disease	15
Diabetes	44
Dementia	29
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. William Daniel Welsh, DO treated as an internist in Whittier, CA during 2022 were nursing home care, ultrasound (sonogram), ear procedures and lab tests.

Volume of procedures performed by Dr. William Daniel Welsh, DO for Medicare patients.

abdominal imaging	13
aspiration	18
cardiac procedures	18
doctor visit	713
ear procedures	41
injections	18
lab tests	39
nursing home care	414
pelvic imaging	16
ultrasound (sonogram)	47

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. William Daniel Welsh, DO.

**Gender**
Male	164
Female	217

**Ethnicity**
Non-Hispanic White	214
Black	0
Hispanic	140
Asian	14
Other	0
Native American	0

**Age**
From 65 to 74	110
From 75 to 84	154
85 and over	101
Less than 65	16

Conditions of Medicare patients treated by Dr. William Daniel Welsh, DO in 2022

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	31
Depression	27
Chronic Kidney Disease	29
Asthma	10
Osteoperosis	22
Atrial Fibrilation	24
Heart Failure	25
Chronic Obstructive Pulmonary Disease	23
Diabetes	45
Dementia	21
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. William Daniel Welsh, DO for Medicare patients.

The highest averages for the top procedures that Dr. William Daniel Welsh, DO treated as an internist in Whittier, CA were inpatient care, hospital care, nursing home care and lab tests.

abdominal imaging	25
aspiration	53
blood draw	51
cardiac procedures	18
diabetes management	128
doctor visit	1296
ear procedures	39
hospital care	938
injections	53
inpatient care	938
lab tests	334
musculoskeletal imaging	43
neck imaging	13
nursing home care	387
pelvic imaging	21
preventive care	172
removal of lesion (e.g. growth)	12
skin procedures	12
skin testing	12
spinal procedures	35
thoracic (chest) imaging	37
tuberculosis (TB) testing	12
ultrasound (sonogram)	65
vaccines	136
vascular procedures	14
X-rays	100

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. William Daniel Welsh, DO.

**Gender**
Male	184
Female	293

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	3
Non-Hispanic White	308
Hispanic	145
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	156
85 and over	144
Less than 65	34
65 to 74	143

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

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

Hypertension	66
High Cholesterol	54
Stroke	7
Ischemic Heart Disease	38
Depression	22
Chronic Kidney Disease	28
Asthma	10
Osteoporosis	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	15
Diabetes	41
Atrial Fibrillation	16
Cancer	11
Dementia	26

Education & Training

Dr. William Daniel Welsh, DO graduated from Des Moines University, College of Osteopathic Medicine in 1976. He is certified by the Board Certification: Family Medicine and has a state license in California.

Medical School: Des Moines University, College of Osteopathic Medicine (1976)

Board Certification: Board Certification: Family Medicine

Licensed In: California

Affiliations & Hospitals

Dr. William Daniel Welsh, DO is associated with these hospitals and organizations:

PIH Health

MAGUIRE AND WELSH MEDICAL GROUP

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General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$1,873 FARXIGA $738	SYMBICORT $255	BREZTRI $201	BYDUREON PEN $128	BRILINTA $89	Other $462
Biohaven Pharmaceutical Holding Company Ltd.	$1,752 NURTEC ODT $1,752
Novo Nordisk Inc	$1,712 Victoza $571	Ozempic $292	Tresiba $277	RYBELSUS $248	Levemir $128	Other $197
Lilly USA, LLC	$1,394 TRULICITY $222	MOUNJARO $166	FORTEO $154	JARDIANCE $148	BASAGLAR $122	Other $582
GlaxoSmithKline, LLC.	$1,286 TRELEGY ELLIPTA $374	BREO $268	ANORO $239	TANZEUM $157	ANORO ELLIPTA $104	Other $145
Other	$13,157 Myrbetriq $820	Repatha $673	ENTRESTO $602	TOUJEO $538	ELIQUIS $513	Other $10,011

**Types of Payments**
Food and Beverage	$19,470
Consulting Fee	$1,200
Education	$276
Travel and Lodging	$228

Research Payments

Dr. William Daniel Welsh, DO has received 1 research payments totaling $150.

Biography

Dr. William Welsh's specialties are family medicine and geriatrics (elderly care). He is affiliated with PIH Health. He graduated from Des Moines University, College of Osteopathic Medicine.