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Home > CA Providers > Family Physicians & Family Medicine Specialists

Dr. Robert James Wielenga, MD

(4 Ratings)

Specializes in: Family Medicine

University of Southern California (USC), Keck School of Medicine

10835 New Street
Downey, CA 90241

(562) 923-9100

Dr. Robert James Wielenga, MD is a family medicine practitioner in Downey, CA specializing in family medicine. He graduated from University of Southern California (USC), Keck School of Medicine. Dr. Robert James Wielenga, MD is affiliated with PIH Health.

Office Locations

PIH Health

10835 New Street
Downey, CA 90241

(562) 923-9100

(562) 923-9103

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Noteworthy Medicare Patient Procedures Performed by Dr. Robert James Wielenga, MD in 2023

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

Top 25%

By Volume:

urinalysis

By Affordability:

lab tests

urine tests

In 2012, among providers in related specialties within California, Dr. Robert James Wielenga, MD performed more urinalysis procedures for Medicare patients than 75% of them and he also had a list price for lab tests, and urine tests 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. Robert James Wielenga, MD treated as a family medicine practitioner in Downey, CA during 2012 were inpatient care, hospital care, preventive care and vaccines.

Volume of procedures performed by Dr. Robert James Wielenga, MD for Medicare patients.

aspiration	31
blood draw	34
breast exam	15
cytology	18
diabetes management	25
doctor visit	1424
ear procedures	16
gynecologic pathology	18
gynecologic procedures	15
hospital care	314
injections	31
inpatient care	314
lab tests	128
nursing home care	128
preventive care	164
vaccines	130

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Robert James Wielenga, MD treated as a family medicine practitioner in Downey, CA during 2013 were inpatient care, hospital care, preventive care and vaccines.

Volume of procedures performed by Dr. Robert James Wielenga, MD for Medicare patients.

aspiration	19
blood draw	26
breast exam	12
breathing treatment	16
cytology	11
doctor visit	1351
ear procedures	21
gynecologic pathology	11
gynecologic procedures	12
hospital care	237
injections	19
inpatient care	237
lab tests	78
nursing home care	92
preventive care	156
vaccines	145

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert James Wielenga, MD.

**Gender**
Male	131
Female	194

**Ethnicity**
Non-Hispanic White	135
Black	0
Hispanic	176
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	108
From 75 to 84	97
85 and over	72
Less than 65	48

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2013

Hypertension	72
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	44
Depression	29
Chronic Kidney Disease	33
Asthma	13
Osteoperosis	20
Atrial Fibrilation	10
Heart Failure	29
Chronic Obstructive Pulmonary Disease	20
Diabetes	52
Dementia	23
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Robert James Wielenga, MD treated as a family medicine practitioner in Downey, CA during 2014 were preventive care, weight management, mental health therapy and vaccines.

Volume of procedures performed by Dr. Robert James Wielenga, MD for Medicare patients.

aspiration	20
blood draw	30
breathing treatment	33
doctor visit	1404
ear procedures	26
hospital care	147
injections	20
inpatient care	147
lab tests	103
mental health therapy	166
preventive care	167
vaccines	147
weight management	166

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert James Wielenga, MD.

**Gender**
Male	127
Female	189

**Ethnicity**
Non-Hispanic White	120
Black	0
Hispanic	182
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	93
85 and over	69
Less than 65	53

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2014

Hypertension	75
High Cholesterol	65
Stroke	5
Ischemic Heart Disease	42
Depression	33
Chronic Kidney Disease	43
Asthma	12
Osteoperosis	22
Atrial Fibrilation	9
Heart Failure	35
Chronic Obstructive Pulmonary Disease	17
Diabetes	61
Dementia	24
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Robert James Wielenga, MD treated as a family medicine practitioner in Downey, CA during 2015 were inpatient care, hospital care, preventive care and lab tests.

Volume of procedures performed by Dr. Robert James Wielenga, MD for Medicare patients.

blood draw	31
breast exam	14
breathing treatment	40
cytology	14
diabetes management	18
doctor visit	1441
ear procedures	12
gynecologic pathology	14
gynecologic procedures	14
hospital care	147
inpatient care	147
lab tests	94
preventive care	96
vaccines	69

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert James Wielenga, MD.

**Gender**
Male	268
Female	358

**Ethnicity**
Non-Hispanic White	210
Black	0
Hispanic	386
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	230
From 75 to 84	178
85 and over	122
Less than 65	96

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2015

Hypertension	75
High Cholesterol	63
Stroke	4
Ischemic Heart Disease	39
Depression	33
Chronic Kidney Disease	51
Asthma	20
Osteoperosis	13
Atrial Fibrilation	9
Heart Failure	34
Chronic Obstructive Pulmonary Disease	18
Diabetes	67
Dementia	22
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Robert James Wielenga, MD treated as a family medicine practitioner in Downey, CA during 2016 were preventive care, vaccines, hospital care and inpatient care.

Volume of procedures performed by Dr. Robert James Wielenga, MD for Medicare patients.

aspiration	11
blood draw	32
breathing treatment	30
doctor visit	1545
ear procedures	21
hospital care	106
injections	11
inpatient care	106
lab tests	64
mental health therapy	80
preventive care	140
vaccines	129
weight management	80

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert James Wielenga, MD.

**Gender**
Male	133
Female	178

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	196
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	125
From 75 to 84	78
85 and over	52
Less than 65	56

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2016

Hypertension	68
High Cholesterol	68
Stroke	5
Ischemic Heart Disease	38
Depression	24
Chronic Kidney Disease	53
Asthma	21
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	35
Chronic Obstructive Pulmonary Disease	16
Diabetes	75
Dementia	21
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Robert James Wielenga, MD treated as a family medicine practitioner in Downey, CA during 2017 were weight management, mental health therapy, lab tests and preventive care.

Volume of procedures performed by Dr. Robert James Wielenga, MD for Medicare patients.

aspiration	26
blood draw	35
breathing treatment	43
diabetes management	22
doctor visit	1407
ear procedures	18
injections	26
lab tests	97
mental health therapy	324
preventive care	85
vaccines	71
weight management	324

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert James Wielenga, MD.

**Gender**
Male	120
Female	189

**Ethnicity**
Non-Hispanic White	101
Black	0
Hispanic	193
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	110
From 75 to 84	90
85 and over	58
Less than 65	51

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2017

Hypertension	67
High Cholesterol	62
Stroke	7
Ischemic Heart Disease	38
Depression	16
Chronic Kidney Disease	57
Asthma	10
Osteoperosis	16
Atrial Fibrilation	10
Heart Failure	29
Chronic Obstructive Pulmonary Disease	17
Diabetes	75
Dementia	21
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Robert James Wielenga, MD treated as a family medicine practitioner in Downey, CA during 2018 were hospital care, inpatient care, preventive care and vaccines.

Volume of procedures performed by Dr. Robert James Wielenga, MD for Medicare patients.

aspiration	15
blood draw	33
breathing treatment	60
diabetes management	23
doctor visit	1453
ear procedures	15
hospital care	141
injections	15
inpatient care	141
lab tests	113
preventive care	139
vaccines	125

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert James Wielenga, MD.

**Gender**
Male	120
Female	188

**Ethnicity**
Non-Hispanic White	89
Black	0
Hispanic	198
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	112
From 75 to 84	92
85 and over	60
Less than 65	44

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2018

Hypertension	66
High Cholesterol	70
Stroke	5
Ischemic Heart Disease	38
Depression	15
Chronic Kidney Disease	74
Asthma	11
Osteoperosis	17
Atrial Fibrilation	8
Heart Failure	42
Chronic Obstructive Pulmonary Disease	17
Diabetes	75
Dementia	22
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Robert James Wielenga, MD treated as a family medicine practitioner in Downey, CA during 2019 were inpatient care, hospital care, lab tests and preventive care.

Volume of procedures performed by Dr. Robert James Wielenga, MD for Medicare patients.

aspiration	15
blood draw	13
breast exam	27
breathing treatment	60
diabetes management	17
doctor visit	1437
ear procedures	17
gynecologic procedures	27
hospital care	171
injections	15
inpatient care	171
lab tests	120
nursing home care	63
preventive care	83
vaccines	68

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert James Wielenga, MD.

**Gender**
Male	111
Female	187

**Ethnicity**
Non-Hispanic White	87
Black	0
Hispanic	196
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	122
From 75 to 84	81
85 and over	55
Less than 65	40

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2019

Hypertension	67
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	39
Depression	20
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	19
Atrial Fibrilation	11
Heart Failure	49
Chronic Obstructive Pulmonary Disease	14
Diabetes	75
Dementia	26
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Robert James Wielenga, MD treated as a family medicine practitioner in Downey, CA during 2020 were hospital care, inpatient care, lab tests and breathing treatment.

Volume of procedures performed by Dr. Robert James Wielenga, MD for Medicare patients.

breast exam	12
breathing treatment	29
doctor visit	849
ear procedures	17
gynecologic procedures	12
hospital care	130
inpatient care	130
lab tests	62
preventive care	12

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert James Wielenga, MD.

**Gender**
Male	105
Female	156

**Ethnicity**
Non-Hispanic White	81
Black	0
Hispanic	164
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	96
From 75 to 84	78
85 and over	50
Less than 65	37

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2020

Hypertension	65
High Cholesterol	72
Stroke	6
Ischemic Heart Disease	35
Depression	21
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	13
Atrial Fibrilation	9
Heart Failure	48
Chronic Obstructive Pulmonary Disease	18
Diabetes	75
Dementia	24
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Robert James Wielenga, MD treated as a family medicine practitioner in Downey, CA during 2021 were lab tests.

Volume of procedures performed by Dr. Robert James Wielenga, MD for Medicare patients.

doctor visit	537
lab tests	32

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert James Wielenga, MD.

**Gender**
Male	94
Female	139

**Ethnicity**
Non-Hispanic White	64
Black	0
Hispanic	155
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	94
From 75 to 84	62
85 and over	42
Less than 65	35

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2021

Hypertension	62
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	28
Depression	19
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	15
Atrial Fibrilation	11
Heart Failure	42
Chronic Obstructive Pulmonary Disease	10
Diabetes	75
Dementia	18
Cancer	6

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Robert James Wielenga, MD treated as a family medicine practitioner in Downey, CA during 2022 were lab tests.

Volume of procedures performed by Dr. Robert James Wielenga, MD for Medicare patients.

doctor visit	710
lab tests	31

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert James Wielenga, MD.

**Gender**
Male	90
Female	138

**Ethnicity**
Non-Hispanic White	63
Black	0
Hispanic	151
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	85
From 75 to 84	72
85 and over	42
Less than 65	29

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2022

Hypertension	70
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	17
Depression	18
Chronic Kidney Disease	23
Asthma	12
Osteoperosis	26
Atrial Fibrilation	16
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	75
Dementia	14
Cancer	9

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Robert James Wielenga, MD for Medicare patients.

The highest averages for the top procedures that Dr. Robert James Wielenga, MD treated as a family medicine practitioner in Downey, CA were weight management, mental health therapy, inpatient care and hospital care.

aspiration	19
blood draw	29
breast exam	16
cytology	14
diabetes management	21
doctor visit	1232
ear procedures	18
gynecologic pathology	14
gynecologic procedures	16
hospital care	174
injections	19
inpatient care	174
lab tests	83
mental health therapy	190
nursing home care	94
preventive care	115
vaccines	110
weight management	190

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Robert James Wielenga, MD.

**Gender**
Female	174
Male	118

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	86
Hispanic	181
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	56
75 to 84	83
Less than 65	44
65 to 74	107

Average of Total of Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD From 2012 - 2022

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

Hypertension	62
High Cholesterol	62
Stroke	4
Ischemic Heart Disease	32
Depression	20
Chronic Kidney Disease	50
Asthma	11
Osteoporosis	15
Heart Failure	33
Chronic Obstructive Pulmonary Disease	14
Diabetes	64
Atrial Fibrillation	9
Dementia	19
Cancer	7

Education & Training

Dr. Robert James Wielenga, MD graduated from University of Southern California (USC), Keck School of Medicine. He completed residency at University of Southern California (USC) Affiliated Hospitals. He is certified by the Board Certification: Family Medicine and has a state license in California.

Medical School: University of Southern California (USC), Keck School of Medicine

Residency: University of Southern California (USC) Affiliated Hospitals

Board Certification: Board Certification: Family Medicine

Licensed In: California

Affiliations & Hospitals

Dr. Robert James Wielenga, MD is associated with these hospitals and organizations:

PIH Health

Ratings & Reviews

Dr. Robert James Wielenga, MD has a good overall rating with an average of 3.25 out of 5 stars based on 4 ratings. We collect ratings and reviews of Dr. Robert James Wielenga, MD from all over the web to help you find the right in Downey, CA.

3.25

Overall Rating

(4 Ratings)

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General Payments

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

**Payments by Company**
Novo Nordisk Inc	$1,198 RYBELSUS $547	Ozempic $370	Saxenda $118	NovoLog $21	Victoza $20	Other $123
Amgen Inc.	$947 Repatha $647	Prolia $274	Otezla $26
GlaxoSmithKline, LLC.	$923 TRELEGY ELLIPTA $387	BREO $131	SHINGRIX $97	AREXVY $85	BOOSTRIX $81	Other $141
Lilly USA, LLC	$832 MOUNJARO $348	JARDIANCE $139	FORTEO $133	REYVOW $69	TRULICITY $35	Other $108
Janssen Pharmaceuticals, Inc	$622 XARELTO $486	INVOKANA $96	meters $18	INVOKAMET $13	Blood Glucose Meters $10
Other	$5,145 Vascepa $331	UBRELVY $188	VRAYLAR $187	XIFAXAN $182	Tymlos $168	Other $4,089

**Types of Payments**
Food and Beverage	$9,518
Education	$124
Consulting Fee	$25

Biography

Dr. Robert Wielenga sees patients in Downey, CA. His medical specialty is family medicine. His average patient rating is 3.0 stars (out of 5). He is affiliated with PIH Health. Dr. Wielenga graduated from the University of Southern California (USC), Keck School of Medicine. He completed his residency training at a hospital affiliated with the University of Southern California (USC). He is conversant in Spanish.

Select Year:

Dr. Robert James Wielenga, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Robert James Wielenga, MD in 2023

By Volume:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Robert James Wielenga, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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