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Dr. Timothy L. Gillison, MD

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Specializes in: Adult Oncology and Adult Hematology

Southern Illinois University School of Medicine (2003)

Professional interests include: cancer

900 N 1st Street
Springfield, IL 62702

(217) 528-7541

Dr. Timothy L. Gillison, MD is an oncologist in New Lenox, IL specializing in adult oncology and adult hematology. He graduated from Southern Illinois University School of Medicine in 2003 and has 23 years of experience. Dr. Timothy L. Gillison, MD is affiliated with The University of Chicago Medicine and SPRINGFIELD CLINIC LLP.

Office Locations

The University of Chicago Medicine

1850 Silver Cross Blvd. Carolyn J. Czerkies Pavilion
New Lenox, IL 60451

1-855-826-1400

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900 N 1st Street
Springfield, IL 62702

(217) 528-7541

(217) 527-2830

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Noteworthy Medicare Patient Procedures Performed by Dr. Timothy L. Gillison, MD in 2023

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

Top 5%

By Affordability:

blood draw

blood draw for lab tests

phlebotomy for lab tests

venipuncture

In 2023, Dr. Timothy L. Gillison, MD had a list price for blood draw, blood draw for lab tests, phlebotomy for lab tests, and venipuncture (phlebotomy) that was lower than the list prices billed to Medicare by 95% 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:

biological response modifier therapy

blood draw

intravenous chemotherapy

intravenous infusion

phlebotomy for lab tests

In 2012, Dr. Timothy L. Gillison, MD performed more biological response modifier (BRM) therapy, blood draw, intravenous (IV) chemotherapy, intravenous (IV) infusion, 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. Timothy L. Gillison, MD treated as an oncologist in New Lenox, IL during 2012 were blood draw, lab tests, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Timothy L. Gillison, MD for Medicare patients.

aspiration	23
biological response modifier (BRM) therapy	407
blood draw	1178
bone marrow tests	47
chemotherapy	407
diagnostic procedures	47
doctor visit	1322
hospital care	277
inpatient care	277
lab tests	1120
minimally invasive procedures	677
port flush	41

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Gillison, MD treated as an oncologist in New Lenox, IL during 2013 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Timothy L. Gillison, MD for Medicare patients.

aspiration	18
biological response modifier (BRM) therapy	536
blood draw	1480
bone marrow tests	36
chemotherapy	536
diagnostic procedures	36
doctor visit	1839
hospital care	274
inpatient care	274
lab tests	1646
minimally invasive procedures	804
port flush	68

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Gillison, MD.

**Gender**
Male	266
Female	276

**Ethnicity**
Non-Hispanic White	518
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	211
From 75 to 84	185
85 and over	79
Less than 65	67

Conditions of Medicare patients treated by Dr. Timothy L. Gillison, MD in 2013

Hypertension	75
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	44
Depression	26
Chronic Kidney Disease	32
Asthma	10
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	25
Diabetes	37
Dementia	9
Cancer	40

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Gillison, MD treated as an oncologist in New Lenox, IL during 2014 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Timothy L. Gillison, MD for Medicare patients.

biological response modifier (BRM) therapy	527
blood draw	1166
chemotherapy	527
doctor visit	1547
hospital care	145
inpatient care	145
lab tests	1591
minimally invasive procedures	844
port flush	59

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Gillison, MD.

**Gender**
Male	268
Female	287

**Ethnicity**
Non-Hispanic White	528
Black	14
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	213
From 75 to 84	193
85 and over	70
Less than 65	79

Conditions of Medicare patients treated by Dr. Timothy L. Gillison, MD in 2014

Hypertension	68
High Cholesterol	53
Stroke	4
Ischemic Heart Disease	43
Depression	25
Chronic Kidney Disease	32
Asthma	9
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	23
Chronic Obstructive Pulmonary Disease	26
Diabetes	35
Dementia	6
Cancer	41

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Gillison, MD treated as an oncologist in New Lenox, IL during 2015 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Timothy L. Gillison, MD for Medicare patients.

biological response modifier (BRM) therapy	424
blood draw	1110
chemotherapy	424
doctor visit	1496
hospital care	80
inpatient care	80
lab tests	1789
minimally invasive procedures	824
port flush	96

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Gillison, MD.

**Gender**
Male	534
Female	572

**Ethnicity**
Non-Hispanic White	1048
Black	32
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	426
From 75 to 84	342
85 and over	158
Less than 65	180

Conditions of Medicare patients treated by Dr. Timothy L. Gillison, MD in 2015

Hypertension	73
High Cholesterol	55
Stroke	3
Ischemic Heart Disease	44
Depression	27
Chronic Kidney Disease	30
Asthma	16
Osteoperosis	6
Atrial Fibrilation	11
Heart Failure	24
Chronic Obstructive Pulmonary Disease	28
Diabetes	34
Dementia	8
Cancer	42

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Gillison, MD treated as an oncologist in New Lenox, IL during 2016 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Timothy L. Gillison, MD for Medicare patients.

aspiration	11
biological response modifier (BRM) therapy	514
blood draw	1116
bone marrow tests	22
chemotherapy	514
diagnostic procedures	22
doctor visit	1504
hospital care	97
inpatient care	97
lab tests	1824
minimally invasive procedures	838
port flush	111

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Gillison, MD.

**Gender**
Male	256
Female	308

**Ethnicity**
Non-Hispanic White	527
Black	24
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	222
From 75 to 84	186
85 and over	78
Less than 65	78

Conditions of Medicare patients treated by Dr. Timothy L. Gillison, MD in 2016

Hypertension	72
High Cholesterol	48
Stroke	4
Ischemic Heart Disease	44
Depression	25
Chronic Kidney Disease	33
Asthma	24
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	25
Diabetes	35
Dementia	9
Cancer	42

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Gillison, MD treated as an oncologist in New Lenox, IL during 2017 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Timothy L. Gillison, MD for Medicare patients.

biological response modifier (BRM) therapy	423
blood draw	1177
chemotherapy	423
doctor visit	1489
hormone therapy	38
hospital care	41
inpatient care	41
lab tests	1766
minimally invasive procedures	745
port flush	39

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Gillison, MD.

**Gender**
Male	270
Female	327

**Ethnicity**
Non-Hispanic White	563
Black	23
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	244
From 75 to 84	193
85 and over	76
Less than 65	84

Conditions of Medicare patients treated by Dr. Timothy L. Gillison, MD in 2017

Hypertension	70
High Cholesterol	48
Stroke	3
Ischemic Heart Disease	41
Depression	25
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	28
Diabetes	32
Dementia	8
Cancer	42

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Gillison, MD treated as an oncologist in New Lenox, IL during 2018 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Timothy L. Gillison, MD for Medicare patients.

biological response modifier (BRM) therapy	366
blood draw	1116
chemotherapy	366
doctor visit	1495
hospital care	111
inpatient care	111
lab tests	1708
minimally invasive procedures	589
port flush	47

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Gillison, MD.

**Gender**
Male	279
Female	356

**Ethnicity**
Non-Hispanic White	599
Black	23
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	260
From 75 to 84	208
85 and over	86
Less than 65	81

Conditions of Medicare patients treated by Dr. Timothy L. Gillison, MD in 2018

Hypertension	71
High Cholesterol	52
Stroke	2
Ischemic Heart Disease	46
Depression	24
Chronic Kidney Disease	38
Asthma	8
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	31
Diabetes	34
Dementia	9
Cancer	46

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Gillison, MD treated as an oncologist in New Lenox, IL during 2019 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Timothy L. Gillison, MD for Medicare patients.

biological response modifier (BRM) therapy	355
blood draw	982
chemotherapy	355
doctor visit	1641
hospital care	120
inpatient care	120
lab tests	1584
minimally invasive procedures	560
port flush	29

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Gillison, MD.

**Gender**
Male	272
Female	400

**Ethnicity**
Non-Hispanic White	632
Black	21
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	280
From 75 to 84	212
85 and over	100
Less than 65	80

Conditions of Medicare patients treated by Dr. Timothy L. Gillison, MD in 2019

Hypertension	74
High Cholesterol	51
Stroke	3
Ischemic Heart Disease	46
Depression	23
Chronic Kidney Disease	36
Asthma	6
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	29
Diabetes	33
Dementia	7
Cancer	51

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Gillison, MD treated as an oncologist in New Lenox, IL during 2020 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hormone therapy.

Volume of procedures performed by Dr. Timothy L. Gillison, MD for Medicare patients.

biological response modifier (BRM) therapy	307
chemotherapy	307
doctor visit	1376
hormone therapy	68
hospital care	24
inpatient care	24
minimally invasive procedures	450
port flush	24

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Gillison, MD.

**Gender**
Male	258
Female	384

**Ethnicity**
Non-Hispanic White	609
Black	17
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	277
From 75 to 84	214
85 and over	76
Less than 65	75

Conditions of Medicare patients treated by Dr. Timothy L. Gillison, MD in 2020

Hypertension	69
High Cholesterol	49
Stroke	3
Ischemic Heart Disease	47
Depression	22
Chronic Kidney Disease	36
Asthma	3
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	22
Chronic Obstructive Pulmonary Disease	25
Diabetes	34
Dementia	6
Cancer	49

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Gillison, MD treated as an oncologist in New Lenox, IL during 2021 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hormone therapy.

Volume of procedures performed by Dr. Timothy L. Gillison, MD for Medicare patients.

biological response modifier (BRM) therapy	486
chemotherapy	486
doctor visit	1546
hormone therapy	67
hospital care	14
inpatient care	14
minimally invasive procedures	732
port flush	41

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Gillison, MD.

**Gender**
Male	263
Female	397

**Ethnicity**
Non-Hispanic White	624
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	275
From 75 to 84	212
85 and over	91
Less than 65	82

Conditions of Medicare patients treated by Dr. Timothy L. Gillison, MD in 2021

Hypertension	72
High Cholesterol	56
Stroke	5
Ischemic Heart Disease	53
Depression	26
Chronic Kidney Disease	36
Asthma	7
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	25
Chronic Obstructive Pulmonary Disease	26
Diabetes	32
Dementia	7
Cancer	47

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Gillison, MD treated as an oncologist in New Lenox, IL during 2022 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Timothy L. Gillison, MD for Medicare patients.

biological response modifier (BRM) therapy	362
blood draw	799
chemotherapy	362
doctor visit	1402
hormone therapy	36
lab tests	1088
minimally invasive procedures	637
port flush	44

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Gillison, MD.

**Gender**
Male	223
Female	336

**Ethnicity**
Non-Hispanic White	533
Black	12
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	227
From 75 to 84	197
85 and over	81
Less than 65	54

Conditions of Medicare patients treated by Dr. Timothy L. Gillison, MD in 2022

Hypertension	75
High Cholesterol	73
Stroke	8
Ischemic Heart Disease	43
Depression	26
Chronic Kidney Disease	25
Asthma	10
Osteoperosis	14
Atrial Fibrilation	23
Heart Failure	24
Chronic Obstructive Pulmonary Disease	32
Diabetes	34
Dementia	4
Cancer	55

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Timothy L. Gillison, MD for Medicare patients.

The highest averages for the top procedures that Dr. Timothy L. Gillison, MD treated as an oncologist in New Lenox, IL were lab tests, blood draw, minimally invasive procedures and chemotherapy.

aspiration	17
biological response modifier (BRM) therapy	427
blood draw	1124
bone marrow tests	35
chemotherapy	427
diagnostic procedures	35
doctor visit	1514
hormone therapy	52
hospital care	118
inpatient care	118
lab tests	1568
minimally invasive procedures	700

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Timothy L. Gillison, MD.

**Gender**
Male	262
Female	331

**Ethnicity**
Black / African American	16
Asian / Pacific Islander	0
Non-Hispanic White	561
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	194
85 and over	81
Less than 65	78
65 to 74	239

Average of Total of Conditions of Medicare patients treated by Dr. Timothy L. Gillison, MD From 2012 - 2022

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

Hypertension	65
High Cholesterol	49
Stroke	3
Ischemic Heart Disease	41
Depression	22
Chronic Kidney Disease	30
Asthma	9
Osteoporosis	7
Heart Failure	20
Chronic Obstructive Pulmonary Disease	25
Diabetes	30
Atrial Fibrillation	12
Dementia	6
Cancer	41

Education & Training

Dr. Timothy L. Gillison, MD graduated from Southern Illinois University School of Medicine in 2003. He completed residency at Indiana University Affiliated Hospitals. He is certified by the Board Certification: Medical Oncology and has a state license in Illinois.

Medical School: Southern Illinois University School of Medicine (2003)

Residency: Indiana University Affiliated Hospitals

Board Certification: Board Certification: Medical Oncology

Licensed In: Illinois

Affiliations & Hospitals

Dr. Timothy L. Gillison, MD is associated with these hospitals and organizations:

The University of Chicago Medicine

SPRINGFIELD CLINIC LLP

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Timothy L. Gillison, MD appears to accept the following insurance providers: Blue Cross Blue Shield PPO, Aetna PPO, CIGNA PPO, CIGNA POS, CIGNA HMO, MultiPlan PPO, Medicare Advantage, Aetna POS, Medicare, Humana, PHCS PPO, Aetna Medicare PPO, United W500 Emergent Wrap, Aetna Better Health *see insurance page, United Options (PPO), CountyCare *see insurance page, BCBS HMO (HMOI) (specialists only), United Select (HMO & EPO) (specialists only), University of Chicago Health Plan (UCHP), United Choice HMO (specialists only), BCBS Blue Precision HMO (specialists only), Aetna HMO (specialists only) and United Choice Plus POS/PPO.

Insurance Accepted by Provider includes:

According to our sources, Dr. Timothy L. Gillison, MD accepts the following insurance providers:

Blue Cross Blue Shield PPO

Aetna PPO

CIGNA PPO

CIGNA POS

CIGNA HMO

MultiPlan PPO

Medicare Advantage

Aetna POS

Medicare

Humana

PHCS PPO

Aetna Medicare PPO

United W500 Emergent Wrap

Aetna Better Health *see insurance page

United Options (PPO)

CountyCare *see insurance page

BCBS HMO (HMOI) (specialists only)

United Select (HMO & EPO) (specialists only)

University of Chicago Health Plan (UCHP)

United Choice HMO (specialists only)

BCBS Blue Precision HMO (specialists only)

Aetna HMO (specialists only)

United Choice Plus POS/PPO

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General Payments

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

**Payments by Company**
Merck Sharp & Dohme Corporation	$182 KEYTRUDA $182
Aveo Pharmaceuticals, Inc.	$63 FOTIVDA $63
Gilead Sciences, Inc.	$45 $45
Mirati Therapeutics, Inc.	$35 KRAZATI $35
E.R. Squibb & Sons, L.L.C.	$17 OPDIVO $17
Other	$40 KISQALI $13	TECVAYLI $13	Rubraca $2	$11

**Types of Payments**
Food and Beverage	$320
Education	$61

Biography

Dr. Timothy Gillison specializes in adult hematology and adult oncology and practices in Springfield, IL and New Lenox, IL. Dr. Gillison's areas of expertise include cancer. He is affiliated with The University of Chicago Medicine. He studied medicine at Southern Illinois University School of Medicine. For his residency, Dr. Gillison trained at a hospital affiliated with Indiana University. Blue California, Aetna, and CIGNA Plans seem to be the insurance carriers that Dr. Gillison accepts.