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Dr. Jonathan Charles Parker JR., MD

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Specializes in: Family Medicine and Urgent Care

Loyola University Chicago, Stritch School of Medicine (2001)

1850 Gateway Drive Suite 100
Sycamore, IL 60178

(815) 217-3252

Dr. Jonathan Charles Parker JR., MD is a family medicine practitioner in Sycamore, IL specializing in family medicine and urgent care. He graduated from Loyola University Chicago, Stritch School of Medicine in 2001 and has 25 years of experience. Dr. Jonathan Charles Parker JR., MD is affiliated with Northwestern Medicine.

Office Locations

Northwestern Medicine

1850 Gateway Drive Suite 100
Sycamore, IL 60178

(815) 217-3252

(815) 756-4941

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Noteworthy Medicare Patient Procedures Performed by Dr. Jonathan Charles Parker JR., MD in 2023

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

Top 5%

By Volume:

breathing treatment

lab tests

postprandial glucose test

rapid flu test

splinting

tetanus-diphtheria-pertussis vaccine

urinalysis

By Affordability:

arm immobilization

In 2023, among providers in related specialties within Illinois, Dr. Jonathan Charles Parker JR., MD performed more breathing treatment, lab tests, postprandial (after meal) glucose test, rapid flu test, splinting (splint application), tetanus-diphtheria-pertussis (Tdap) vaccine, and urinalysis procedures for Medicare patients than 95% of them and he also had a list price for arm immobilization that was lower than the list prices billed to Medicare by 95% 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.

Top 10%

By Affordability:

immunization

vaccines

In 2023, Dr. Jonathan Charles Parker JR., MD had a list price for immunization (preventive vaccines), and vaccines that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Illinois. 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:

blood draw

phlebotomy for lab tests

In 2012, Dr. Jonathan Charles Parker JR., MD performed more blood draw, and phlebotomy for lab tests procedures for Medicare patients than 75% of providers in related specialties within Illinois.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Jonathan Charles Parker JR., MD treated as a family medicine practitioner in Sycamore, IL during 2012 were lab tests, X-rays, thoracic (chest) imaging and breathing treatment.

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

breathing treatment	33
doctor visit	396
lab tests	88
thoracic (chest) imaging	45
X-rays	45

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Jonathan Charles Parker JR., MD treated as a family medicine practitioner in Sycamore, IL during 2013 were lab tests, X-rays, thoracic (chest) imaging and breathing treatment.

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

breathing treatment	42
doctor visit	431
lab tests	60
preventive care	14
thoracic (chest) imaging	52
vaccines	14
X-rays	52

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Charles Parker JR., MD.

**Gender**
Male	151
Female	264

**Ethnicity**
Non-Hispanic White	394
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	211
From 75 to 84	130
85 and over	43
Less than 65	31

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2013

Hypertension	59
High Cholesterol	47
Stroke	4
Ischemic Heart Disease	25
Depression	13
Chronic Kidney Disease	11
Asthma	8
Osteoperosis	5
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	11
Diabetes	20
Dementia	4
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

doctor visit	76

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Charles Parker JR., MD.

**Gender**
Male	32
Female	72

**Age**
From 65 to 74	52
From 75 to 84	27
85 and over	11
Less than 65	14

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2014

Hypertension	54
High Cholesterol	41
Stroke	0
Ischemic Heart Disease	28
Depression	21
Chronic Kidney Disease	13
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	13
Chronic Obstructive Pulmonary Disease	17
Diabetes	18
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

doctor visit	248

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Charles Parker JR., MD.

**Gender**
Male	186
Female	284

**Age**
From 65 to 74	222
From 75 to 84	114
85 and over	44
Less than 65	90

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2015

Hypertension	67
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	37
Depression	27
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	6
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	21
Diabetes	26
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Jonathan Charles Parker JR., MD treated as a family medicine practitioner in Sycamore, IL during 2016 were lab tests, X-rays and thoracic (chest) imaging.

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

doctor visit	286
lab tests	18
thoracic (chest) imaging	13
X-rays	13

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Charles Parker JR., MD.

**Gender**
Male	113
Female	166

**Ethnicity**
Non-Hispanic White	267
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	155
From 75 to 84	69
85 and over	23
Less than 65	32

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2016

Hypertension	61
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	33
Depression	26
Chronic Kidney Disease	23
Asthma	20
Osteoperosis	6
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	20
Diabetes	24
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Jonathan Charles Parker JR., MD treated as a family medicine practitioner in Sycamore, IL during 2017 were breathing treatment, lab tests, X-rays and thoracic (chest) imaging.

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

breathing treatment	56
doctor visit	505
lab tests	28
preventive care	13
thoracic (chest) imaging	26
vaccines	13
X-rays	26

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Charles Parker JR., MD.

**Gender**
Male	159
Female	295

**Ethnicity**
Non-Hispanic White	418
Black	13
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	233
From 75 to 84	99
85 and over	55
Less than 65	67

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2017

Hypertension	60
High Cholesterol	41
Stroke	3
Ischemic Heart Disease	26
Depression	19
Chronic Kidney Disease	20
Asthma	8
Osteoperosis	7
Atrial Fibrilation	8
Heart Failure	12
Chronic Obstructive Pulmonary Disease	15
Diabetes	28
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Jonathan Charles Parker JR., MD treated as a family medicine practitioner in Sycamore, IL during 2018 were breathing treatment, lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

abscess drainage	11
breathing treatment	74
doctor visit	979
incision and drainage	11
lab tests	21
minor procedures	11
preventive care	15
skin surgery	11
vaccines	15

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Charles Parker JR., MD.

**Gender**
Male	313
Female	496

**Ethnicity**
Non-Hispanic White	728
Black	26
Hispanic	29
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	379
From 75 to 84	197
85 and over	101
Less than 65	132

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2018

Hypertension	64
High Cholesterol	56
Stroke	4
Ischemic Heart Disease	24
Depression	24
Chronic Kidney Disease	24
Asthma	8
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	16
Diabetes	25
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Jonathan Charles Parker JR., MD treated as a family medicine practitioner in Sycamore, IL during 2019 were lab tests, breathing treatment, preventive care and vaccines.

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

blood draw	32
breathing treatment	86
doctor visit	1462
ear procedures	15
lab tests	183
preventive care	36
vaccines	36

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Charles Parker JR., MD.

**Gender**
Male	454
Female	768

**Ethnicity**
Non-Hispanic White	1113
Black	33
Hispanic	49
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	587
From 75 to 84	0
85 and over	146
Less than 65	149

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2019

Hypertension	65
High Cholesterol	58
Stroke	4
Ischemic Heart Disease	26
Depression	23
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	25
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Jonathan Charles Parker JR., MD treated as a family medicine practitioner in Sycamore, IL during 2020 were lab tests, preventive care, vaccines and blood draw.

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

blood draw	35
doctor visit	1733
lab tests	318
preventive care	42
vaccines	42

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Charles Parker JR., MD.

**Gender**
Male	601
Female	946

**Ethnicity**
Non-Hispanic White	1347
Black	50
Hispanic	96
Asian	14
Other	40
Native American	0

**Age**
From 65 to 74	853
From 75 to 84	377
85 and over	119
Less than 65	198

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2020

Hypertension	61
High Cholesterol	57
Stroke	3
Ischemic Heart Disease	29
Depression	21
Chronic Kidney Disease	24
Asthma	6
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	24
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Jonathan Charles Parker JR., MD treated as a family medicine practitioner in Sycamore, IL during 2021 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

blood draw	47
diabetes management	11
doctor visit	2739
lab tests	474
minor procedures	15
preventive care	33
thoracic (chest) imaging	18
vaccines	33
wound repair (e.g. stitches)	15
X-rays	18

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Charles Parker JR., MD.

**Gender**
Male	814
Female	1430

**Ethnicity**
Non-Hispanic White	1976
Black	68
Hispanic	127
Asian	0
Other	57
Native American	0

**Age**
From 65 to 74	1121
From 75 to 84	670
85 and over	209
Less than 65	244

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2021

Hypertension	64
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	32
Depression	21
Chronic Kidney Disease	26
Asthma	7
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	25
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Jonathan Charles Parker JR., MD treated as a family medicine practitioner in Sycamore, IL during 2022 were lab tests, blood draw, breathing treatment and preventive care.

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

blood draw	199
breathing treatment	69
doctor visit	2915
lab tests	504
musculoskeletal imaging	19
preventive care	47
thoracic (chest) imaging	18
vaccines	47
X-rays	37

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Charles Parker JR., MD.

**Gender**
Male	825
Female	1432

**Ethnicity**
Non-Hispanic White	1963
Black	60
Hispanic	135
Asian	0
Other	65
Native American	0

**Age**
From 65 to 74	1154
From 75 to 84	697
85 and over	199
Less than 65	207

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2022

Hypertension	69
High Cholesterol	74
Stroke	6
Ischemic Heart Disease	23
Depression	19
Chronic Kidney Disease	18
Asthma	10
Osteoperosis	15
Atrial Fibrilation	15
Heart Failure	12
Chronic Obstructive Pulmonary Disease	15
Diabetes	25
Dementia	4
Cancer	14

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Jonathan Charles Parker JR., MD treated as a family medicine practitioner in Sycamore, IL during 2023 were lab tests, blood draw, breathing treatment and preventive care.

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

blood draw	209
breathing treatment	121
doctor visit	3025
immobilization	13
lab tests	709
musculoskeletal imaging	19
preventive care	42
vaccines	42
X-rays	19

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Charles Parker JR., MD.

**Gender**
Male	717
Female	1399

**Ethnicity**
Non-Hispanic White	1805
Black	89
Hispanic	126
Asian	0
Other	66
Native American	0

**Age**
From 65 to 74	1026
From 75 to 84	667
85 and over	202
Less than 65	221

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2023

Hypertension	69
High Cholesterol	74
Stroke	6
Ischemic Heart Disease	23
Depression	20
Chronic Kidney Disease	19
Asthma	11
Osteoperosis	16
Atrial Fibrilation	15
Heart Failure	12
Chronic Obstructive Pulmonary Disease	16
Diabetes	27
Dementia	4
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Jonathan Charles Parker JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. Jonathan Charles Parker JR., MD treated as a family medicine practitioner in Sycamore, IL were lab tests, blood draw, preventive care and X-rays.

abscess drainage	11
blood draw	104
diabetes management	11
doctor visit	1232
ear procedures	15
immobilization	13
incision and drainage	11
lab tests	240
minor procedures	13
musculoskeletal imaging	19
preventive care	30
skin surgery	11
thoracic (chest) imaging	28
vaccines	30
wound repair (e.g. stitches)	15
X-rays	30

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Jonathan Charles Parker JR., MD.

**Gender**
Female	629
Male	363

**Ethnicity**
Black / African American	28
Asian / Pacific Islander	1
Non-Hispanic White	834
Native American / Alaskan Native	0
Hispanic	47
Other	19

**Age**
75 to 84	253
85 and over	96
Less than 65	115
65 to 74	499

Average of Total of Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Jonathan Charles Parker JR., MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	57
High Cholesterol	51
Stroke	2
Ischemic Heart Disease	25
Depression	19
Chronic Kidney Disease	18
Asthma	8
Osteoporosis	7
Heart Failure	12
Chronic Obstructive Pulmonary Disease	14
Diabetes	22
Atrial Fibrillation	9
Dementia	5
Cancer	8

Education & Training

Dr. Jonathan Charles Parker JR., MD graduated from Loyola University Chicago, Stritch School of Medicine in 2001. He completed residency at Adventist LaGrange Memorial Hospital. He is certified by the American Board of Family Medicine - Family Medicine (Certified) and has a state license in Illinois.

Medical School: Loyola University Chicago, Stritch School of Medicine (2001)

Residency: Adventist LaGrange Memorial Hospital (2004)

Board Certification: American Board of Family Medicine - Family Medicine (Certified)

Licensed In: Illinois

Affiliations & Hospitals

Dr. Jonathan Charles Parker JR., MD is associated with these hospitals and organizations:

Northwestern Medicine

Ratings & Reviews

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Biography

Dr. Jonathan Parker works as a family medicine and urgent care. He obtained his medical school training at Loyola University Chicago, Stritch School of Medicine and performed his residency at Adventist LaGrange Memorial Hospital. Dr. Parker is affiliated with Northwestern Medical Group (NMG).

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Dr. Jonathan Charles Parker JR., MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Jonathan Charles Parker JR., MD in 2023

By Volume:

By Affordability:

By Affordability:

By Volume:

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. Jonathan Charles Parker JR., MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Jonathan Charles Parker JR., MD From 2012 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

Biography

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