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Dr. Marc D. Posner, MD

Accepting New Patients

(Marc D. Posner, MD)

(46 Ratings)

Specializes in: Radiation Oncology and General Practice

Harvard Medical School (1995)

Professional interests include: lymphoma, breast cancer, gastrointestinal cancer, and more.

1000 N Westmoreland Road Pavilion A, Level 1
Lake Forest, IL 60045

(847) 535-6135

Dr. Marc D. Posner, MD is a radiation oncologist in Lake Forest, IL specializing in radiation oncology and general practice. He graduated from Harvard Medical School in 1995 and has 31 years of experience. Dr. Marc D. Posner, MD is affiliated with Northwestern Medicine, Northwestern University Feinberg School of Medicine, Northwestern University Clinical and Translational Sciences Institute (NUCATS), Northwestern Medical Group (NMG) and Northwestern Medical Group.

Office Locations

1000 N Westmoreland Road Pavilion A, Level 1
Lake Forest, IL 60045

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1475 E Belvidere Road Pavilion A: Cancer Center
Grayslake, IL 60030

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In The News

“In real-time, SGRT deploys 3D cameras in the ceiling of the treatment rooms that project laser beams over the surface of the patient s body and create a three-dimensional rendering of the patient...”—"Lake Forest, Grayslake facilities providing tattoo-free radiation treatment; I didn t need another reminder", Chicago Tribune, February 2024

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Marc D. Posner, MD treated as a radiation oncologist in Lake Forest, IL during 2012 were radiation therapy.

Volume of procedures performed by Dr. Marc D. Posner, MD for Medicare patients.

doctor visit	441
radiation therapy	24

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Marc D. Posner, MD treated as a radiation oncologist in Lake Forest, IL during 2013 were radiation therapy.

Volume of procedures performed by Dr. Marc D. Posner, MD for Medicare patients.

doctor visit	435
radiation therapy	22

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc D. Posner, MD.

**Gender**
Male	65
Female	61

**Age**
From 65 to 74	58
From 75 to 84	50
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc D. Posner, MD in 2013

Hypertension	66
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	31
Depression	13
Chronic Kidney Disease	18
Asthma	0
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	13
Chronic Obstructive Pulmonary Disease	20
Diabetes	17
Dementia	0
Cancer	69

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Marc D. Posner, MD treated as a radiation oncologist in Lake Forest, IL during 2014 were radiation therapy.

Volume of procedures performed by Dr. Marc D. Posner, MD for Medicare patients.

doctor visit	542
radiation therapy	20

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc D. Posner, MD.

**Gender**
Male	90
Female	70

**Ethnicity**
Non-Hispanic White	149
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	67
From 75 to 84	62
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc D. Posner, MD in 2014

Hypertension	68
High Cholesterol	60
Stroke	8
Ischemic Heart Disease	33
Depression	19
Chronic Kidney Disease	24
Asthma	0
Osteoperosis	7
Atrial Fibrilation	16
Heart Failure	22
Chronic Obstructive Pulmonary Disease	17
Diabetes	33
Dementia	0
Cancer	72

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Marc D. Posner, MD treated as a radiation oncologist in Lake Forest, IL during 2015 were radiation therapy.

Volume of procedures performed by Dr. Marc D. Posner, MD for Medicare patients.

doctor visit	382
radiation therapy	23

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc D. Posner, MD.

**Gender**
Male	140
Female	142

**Ethnicity**
Non-Hispanic White	250
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	92
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc D. Posner, MD in 2015

Hypertension	62
High Cholesterol	59
Stroke	9
Ischemic Heart Disease	32
Depression	14
Chronic Kidney Disease	26
Asthma	11
Osteoperosis	0
Atrial Fibrilation	16
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	26
Dementia	0
Cancer	70

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Marc D. Posner, MD treated as a radiation oncologist in Lake Forest, IL during 2016 were radiation therapy.

Volume of procedures performed by Dr. Marc D. Posner, MD for Medicare patients.

doctor visit	379
radiation therapy	28

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc D. Posner, MD.

**Gender**
Male	69
Female	60

**Age**
From 65 to 74	58
From 75 to 84	44
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc D. Posner, MD in 2016

Hypertension	67
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	31
Depression	19
Chronic Kidney Disease	33
Asthma	19
Osteoperosis	0
Atrial Fibrilation	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	19
Diabetes	19
Dementia	15
Cancer	60

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Marc D. Posner, MD treated as a radiation oncologist in Lake Forest, IL during 2017 were radiation therapy.

Volume of procedures performed by Dr. Marc D. Posner, MD for Medicare patients.

doctor visit	532
radiation therapy	34

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc D. Posner, MD.

**Gender**
Male	77
Female	81

**Ethnicity**
Non-Hispanic White	138
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	49
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc D. Posner, MD in 2017

Hypertension	64
High Cholesterol	37
Stroke	0
Ischemic Heart Disease	30
Depression	13
Chronic Kidney Disease	28
Asthma	9
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	21
Dementia	8
Cancer	65

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Marc D. Posner, MD treated as a radiation oncologist in Lake Forest, IL during 2018 were radiation therapy.

Volume of procedures performed by Dr. Marc D. Posner, MD for Medicare patients.

doctor visit	320
radiation therapy	29

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc D. Posner, MD.

**Gender**
Male	88
Female	65

**Ethnicity**
Non-Hispanic White	136
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	74
From 75 to 84	58
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc D. Posner, MD in 2018

Hypertension	61
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	31
Depression	17
Chronic Kidney Disease	28
Asthma	0
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	20
Chronic Obstructive Pulmonary Disease	17
Diabetes	25
Dementia	7
Cancer	74

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Marc D. Posner, MD treated as a radiation oncologist in Lake Forest, IL during 2019 were radiation therapy.

Volume of procedures performed by Dr. Marc D. Posner, MD for Medicare patients.

doctor visit	576
radiation therapy	36

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc D. Posner, MD.

**Gender**
Male	104
Female	78

**Ethnicity**
Non-Hispanic White	161
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	68
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc D. Posner, MD in 2019

Hypertension	66
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	32
Depression	23
Chronic Kidney Disease	34
Asthma	6
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	17
Diabetes	25
Dementia	0
Cancer	66

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Marc D. Posner, MD treated as a radiation oncologist in Lake Forest, IL during 2020 were radiation therapy.

Volume of procedures performed by Dr. Marc D. Posner, MD for Medicare patients.

doctor visit	428
radiation therapy	37

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc D. Posner, MD.

**Gender**
Male	91
Female	83

**Ethnicity**
Non-Hispanic White	156
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	79
From 75 to 84	64
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc D. Posner, MD in 2020

Hypertension	60
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	39
Depression	17
Chronic Kidney Disease	33
Asthma	0
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	13
Chronic Obstructive Pulmonary Disease	18
Diabetes	20
Dementia	9
Cancer	69

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Marc D. Posner, MD treated as a radiation oncologist in Lake Forest, IL during 2021 were radiation therapy.

Volume of procedures performed by Dr. Marc D. Posner, MD for Medicare patients.

doctor visit	493
radiation therapy	29

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc D. Posner, MD.

**Gender**
Male	107
Female	94

**Ethnicity**
Non-Hispanic White	178
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	94
From 75 to 84	68
85 and over	28
Less than 65	11

Conditions of Medicare patients treated by Dr. Marc D. Posner, MD in 2021

Hypertension	66
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	40
Depression	18
Chronic Kidney Disease	28
Asthma	6
Osteoperosis	12
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	15
Diabetes	21
Dementia	11
Cancer	73

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Marc D. Posner, MD treated as a radiation oncologist in Lake Forest, IL during 2022 were radiation therapy.

Volume of procedures performed by Dr. Marc D. Posner, MD for Medicare patients.

doctor visit	510
radiation therapy	34

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc D. Posner, MD.

**Gender**
Male	118
Female	98

**Ethnicity**
Non-Hispanic White	186
Black	0
Hispanic	0
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	104
From 75 to 84	80
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc D. Posner, MD in 2022

Hypertension	70
High Cholesterol	66
Stroke	10
Ischemic Heart Disease	28
Depression	18
Chronic Kidney Disease	20
Asthma	6
Osteoperosis	15
Atrial Fibrilation	19
Heart Failure	13
Chronic Obstructive Pulmonary Disease	17
Diabetes	24
Dementia	6
Cancer	74

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Marc D. Posner, MD for Medicare patients.

The highest averages for the top procedures that Dr. Marc D. Posner, MD treated as a radiation oncologist in Lake Forest, IL were radiation therapy.

doctor visit	458
radiation therapy	28

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Marc D. Posner, MD.

**Gender**
Male	86
Female	75

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	123
Hispanic	0
Native American / Alaskan Native	0
Other	1

**Age**
75 to 84	57
85 and over	2
Less than 65	1
65 to 74	76

Average of Total of Conditions of Medicare patients treated by Dr. Marc D. Posner, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Marc D. Posner, MD treated were cancer, hypertension, high cholesterol and ischemic heart disease.

Hypertension	59
High Cholesterol	49
Stroke	2
Ischemic Heart Disease	29
Depression	15
Chronic Kidney Disease	24
Asthma	5
Osteoporosis	7
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	21
Atrial Fibrillation	13
Cancer	62
Dementia	5

Education & Training

Dr. Marc D. Posner, MD graduated from Harvard Medical School in 1995. He completed residency at University of Chicago Affiliated Hospitals. He is certified by the American Board of Radiology - Radiation Oncology (Certified) and has a state license in Illinois.

Medical School: Harvard Medical School (1995)

Residency: University of Chicago Affiliated Hospitals (1996)

Board Certification: American Board of Radiology - Radiation Oncology (Certified)

Licensed In: Illinois

Affiliations & Hospitals

Dr. Marc D. Posner, MD is associated with these hospitals and organizations:

Northwestern Medicine

Northwestern University Feinberg School of Medicine

Northwestern University Clinical and Translational Sciences Institute (NUCATS)

Northwestern Medical Group (NMG)

Northwestern Medical Group

Ratings & Reviews

Dr. Marc D. Posner, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 46 ratings. We collect ratings and reviews of Dr. Marc D. Posner, MD from all over the web to help you find the right in Lake Forest, IL.

Overall Rating

(46 Ratings)

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General Payments

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

**Payments by Company**
Bayer HealthCare Pharmaceuticals Inc.	$149,840 Xofigo $136,059	$13,780
Elekta, Inc.	$31,523 PROKNOW DS $9,829	ELEKTA MEDICAL LINEAR ACCELERATOR $9,296	METRIQ $3,302	Monaco $2,863	ELEKTA ONCOLOGY INFO SYSTEM $2,702	Other $3,531
AMAG Pharmaceuticals, Inc.	$22,090 Feraheme $11,309	MuGard $8,172	FARAHEME $2,518	$91
Canon Medical Systems USA, Inc.	$10,122 $10,122
Toshiba America Medical Systems, Inc.	$4,879 multiple $161	$4,718
Other	$900 TRELEGY ELLIPTA $472	ELEKTA ONCOLOGY INFO SYSTEM $127	FENTORA $100	ELEKTA TREATMENT PLANNING SYSTEM $47	Xofigo $33	Other $121

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$126,967
Consulting Fee	$37,983
Travel and Lodging	$19,587
Honoraria	$16,500
Education	$9,516
Other	$8,800

Biography

Dr. Marc Posner is a specialist in general practice and radiation oncology. After completing medical school at Harvard Medical School, Dr. Posner performed his residency at a hospital affiliated with the University of California, San Francisco (UCSF) and a hospital affiliated with the University of Chicago. Clinical interests for Dr. Posner include genitourinary cancer, lung cancer, and breast cancer. He is rated 5.0 stars (out of 5) by his patients. He is professionally affiliated with Northwestern University Clinical and Translational Sciences Institute (NUCATS), Northwestern Medical Group (NMG), and Northwestern Medicine Lake Forest Hospital. His practice in Lake Forest, IL is open to new patients as reported by Yext.