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Dr. Nehemiah T. Tan, MD

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Specializes in: Adult Rheumatology

Far Eastern University, Nicanor Reyes Medical Foundation

200 Richmond Avenue E Suite 3
Mattoon, IL 61938

(217) 238-7000

Dr. Nehemiah T. Tan, MD is a rheumatologist in Mattoon, IL specializing in adult rheumatology. He graduated from Far Eastern University, Nicanor Reyes Medical Foundation. Dr. Nehemiah T. Tan, MD is affiliated with Memorial Health System and Sarah Bush Lincoln.

Office Locations

200 Richmond Avenue E Suite 3
Mattoon, IL 61938

(217) 238-7000

(217) 234-2060

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2300 N. Edward Street
Decatur, IL 62526

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Sarah Bush Lincoln

Vcard Suite 3
Mattoon, IL 61938

(217) 234-7000

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Noteworthy Medicare Patient Procedures Performed by Dr. Nehemiah T. Tan, MD in 2023

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

Top 5%

By Affordability:

intravenous infusion

In 2023, Dr. Nehemiah T. Tan, MD had a list price for intravenous (IV) infusion 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Nehemiah T. Tan, MD treated as a rheumatologist in Mattoon, IL during 2012 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Nehemiah T. Tan, MD for Medicare patients.

aspiration	173
biological response modifier (BRM) therapy	392
chemotherapy	392
doctor visit	2334
hospital care	22
injections	173
inpatient care	22
minimally invasive procedures	392
musculoskeletal imaging	99
X-rays	99

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Nehemiah T. Tan, MD treated as a rheumatologist in Mattoon, IL during 2013 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Nehemiah T. Tan, MD for Medicare patients.

aspiration	171
biological response modifier (BRM) therapy	346
chemotherapy	346
doctor visit	2225
injections	171
minimally invasive procedures	346
musculoskeletal imaging	122
X-rays	122

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Nehemiah T. Tan, MD.

**Gender**
Male	216
Female	670

**Ethnicity**
Non-Hispanic White	796
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	406
From 75 to 84	253
85 and over	84
Less than 65	143

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2013

Hypertension	73
High Cholesterol	63
Stroke	4
Ischemic Heart Disease	38
Depression	23
Chronic Kidney Disease	22
Asthma	12
Osteoperosis	14
Atrial Fibrilation	8
Heart Failure	22
Chronic Obstructive Pulmonary Disease	15
Diabetes	28
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Nehemiah T. Tan, MD treated as a rheumatologist in Mattoon, IL during 2014 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Nehemiah T. Tan, MD for Medicare patients.

aspiration	155
biological response modifier (BRM) therapy	288
chemotherapy	288
doctor visit	2014
injections	155
minimally invasive procedures	288
musculoskeletal imaging	111
X-rays	111

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Nehemiah T. Tan, MD.

**Gender**
Male	191
Female	616

**Ethnicity**
Non-Hispanic White	732
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	368
From 75 to 84	242
85 and over	73
Less than 65	124

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2014

Hypertension	70
High Cholesterol	61
Stroke	3
Ischemic Heart Disease	36
Depression	25
Chronic Kidney Disease	22
Asthma	12
Osteoperosis	13
Atrial Fibrilation	8
Heart Failure	20
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Nehemiah T. Tan, MD treated as a rheumatologist in Mattoon, IL during 2015 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Nehemiah T. Tan, MD for Medicare patients.

aspiration	140
biological response modifier (BRM) therapy	275
chemotherapy	275
doctor visit	1939
injections	140
minimally invasive procedures	275
musculoskeletal imaging	97
X-rays	97

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Nehemiah T. Tan, MD.

**Gender**
Male	384
Female	1190

**Ethnicity**
Non-Hispanic White	1450
Black	94
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	708
From 75 to 84	472
85 and over	162
Less than 65	232

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2015

Hypertension	71
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	37
Depression	23
Chronic Kidney Disease	22
Asthma	15
Osteoperosis	14
Atrial Fibrilation	8
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	27
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Nehemiah T. Tan, MD treated as a rheumatologist in Mattoon, IL during 2016 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Nehemiah T. Tan, MD for Medicare patients.

aspiration	134
biological response modifier (BRM) therapy	327
chemotherapy	327
doctor visit	2058
injections	134
minimally invasive procedures	327
musculoskeletal imaging	63
X-rays	63

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Nehemiah T. Tan, MD.

**Gender**
Male	207
Female	581

**Ethnicity**
Non-Hispanic White	717
Black	60
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	363
From 75 to 84	230
85 and over	64
Less than 65	131

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2016

Hypertension	69
High Cholesterol	60
Stroke	2
Ischemic Heart Disease	37
Depression	26
Chronic Kidney Disease	26
Asthma	23
Osteoperosis	13
Atrial Fibrilation	8
Heart Failure	19
Chronic Obstructive Pulmonary Disease	18
Diabetes	29
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Nehemiah T. Tan, MD treated as a rheumatologist in Mattoon, IL during 2017 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Nehemiah T. Tan, MD for Medicare patients.

aspiration	111
biological response modifier (BRM) therapy	397
chemotherapy	397
doctor visit	2002
injections	111
minimally invasive procedures	397
musculoskeletal imaging	24
X-rays	24

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Nehemiah T. Tan, MD.

**Gender**
Male	196
Female	556

**Ethnicity**
Non-Hispanic White	680
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	346
From 75 to 84	227
85 and over	53
Less than 65	126

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2017

Hypertension	70
High Cholesterol	52
Stroke	3
Ischemic Heart Disease	38
Depression	27
Chronic Kidney Disease	27
Asthma	13
Osteoperosis	14
Atrial Fibrilation	9
Heart Failure	20
Chronic Obstructive Pulmonary Disease	20
Diabetes	28
Dementia	6
Cancer	7

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Nehemiah T. Tan, MD treated as a rheumatologist in Mattoon, IL during 2018 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Nehemiah T. Tan, MD for Medicare patients.

aspiration	102
biological response modifier (BRM) therapy	381
chemotherapy	381
doctor visit	1943
injections	102
minimally invasive procedures	381

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Nehemiah T. Tan, MD.

**Gender**
Male	183
Female	517

**Ethnicity**
Non-Hispanic White	621
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	328
From 75 to 84	205
85 and over	54
Less than 65	113

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2018

Hypertension	73
High Cholesterol	64
Stroke	4
Ischemic Heart Disease	38
Depression	28
Chronic Kidney Disease	28
Asthma	11
Osteoperosis	13
Atrial Fibrilation	9
Heart Failure	21
Chronic Obstructive Pulmonary Disease	19
Diabetes	29
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Nehemiah T. Tan, MD treated as a rheumatologist in Mattoon, IL during 2019 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Nehemiah T. Tan, MD for Medicare patients.

aspiration	69
biological response modifier (BRM) therapy	426
chemotherapy	426
doctor visit	1949
injections	69
minimally invasive procedures	426

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Nehemiah T. Tan, MD.

**Gender**
Male	207
Female	528

**Ethnicity**
Non-Hispanic White	652
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	344
From 75 to 84	224
85 and over	54
Less than 65	113

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2019

Hypertension	73
High Cholesterol	63
Stroke	4
Ischemic Heart Disease	39
Depression	29
Chronic Kidney Disease	30
Asthma	13
Osteoperosis	14
Atrial Fibrilation	10
Heart Failure	23
Chronic Obstructive Pulmonary Disease	21
Diabetes	29
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Nehemiah T. Tan, MD treated as a rheumatologist in Mattoon, IL during 2020 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Nehemiah T. Tan, MD for Medicare patients.

aspiration	47
biological response modifier (BRM) therapy	376
chemotherapy	376
doctor visit	1425
injections	47
minimally invasive procedures	376

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Nehemiah T. Tan, MD.

**Gender**
Male	176
Female	428

**Ethnicity**
Non-Hispanic White	553
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	293
From 75 to 84	206
85 and over	39
Less than 65	66

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2020

Hypertension	69
High Cholesterol	59
Stroke	3
Ischemic Heart Disease	41
Depression	26
Chronic Kidney Disease	26
Asthma	9
Osteoperosis	14
Atrial Fibrilation	8
Heart Failure	23
Chronic Obstructive Pulmonary Disease	17
Diabetes	27
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Nehemiah T. Tan, MD treated as a rheumatologist in Mattoon, IL during 2021 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and aspiration.

Volume of procedures performed by Dr. Nehemiah T. Tan, MD for Medicare patients.

aspiration	62
biological response modifier (BRM) therapy	155
chemotherapy	155
doctor visit	1531
injections	62
minimally invasive procedures	394

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Nehemiah T. Tan, MD.

**Gender**
Male	178
Female	420

**Ethnicity**
Non-Hispanic White	543
Black	44
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	295
From 75 to 84	190
85 and over	55
Less than 65	58

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2021

Hypertension	69
High Cholesterol	65
Stroke	3
Ischemic Heart Disease	41
Depression	25
Chronic Kidney Disease	26
Asthma	9
Osteoperosis	15
Atrial Fibrilation	10
Heart Failure	25
Chronic Obstructive Pulmonary Disease	18
Diabetes	25
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Nehemiah T. Tan, MD treated as a rheumatologist in Mattoon, IL during 2022 were minimally invasive procedures, aspiration and injections.

Volume of procedures performed by Dr. Nehemiah T. Tan, MD for Medicare patients.

aspiration	57
doctor visit	1356
injections	57
minimally invasive procedures	386

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Nehemiah T. Tan, MD.

**Gender**
Male	152
Female	371

**Ethnicity**
Non-Hispanic White	485
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	262
From 75 to 84	169
85 and over	55
Less than 65	37

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	32
Depression	27
Chronic Kidney Disease	20
Asthma	16
Osteoperosis	23
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	20
Diabetes	25
Dementia	5
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Nehemiah T. Tan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Nehemiah T. Tan, MD treated as a rheumatologist in Mattoon, IL were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and aspiration.

aspiration	111
biological response modifier (BRM) therapy	336
chemotherapy	336
doctor visit	1888
hospital care	22
injections	111
inpatient care	22
minimally invasive procedures	362
musculoskeletal imaging	86
X-rays	86

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Nehemiah T. Tan, MD.

**Gender**
Female	534
Male	190

**Ethnicity**
Black / African American	18
Asian / Pacific Islander	0
Non-Hispanic White	657
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	63
75 to 84	219
Less than 65	103
65 to 74	337

Average of Total of Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Nehemiah T. Tan, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	64
High Cholesterol	56
Stroke	3
Ischemic Heart Disease	34
Depression	23
Chronic Kidney Disease	22
Asthma	12
Osteoporosis	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	16
Diabetes	25
Atrial Fibrillation	8
Dementia	5
Cancer	8

Education & Training

Dr. Nehemiah T. Tan, MD graduated from Far Eastern University, Nicanor Reyes Medical Foundation. He completed residency at Mercy Hospital of Buffalo. He has a state license in Illinois.

Medical School: Far Eastern University, Nicanor Reyes Medical Foundation

Residency: Mercy Hospital of Buffalo

Licensed In: Illinois

Affiliations & Hospitals

Dr. Nehemiah T. Tan, MD is associated with these hospitals and organizations:

Memorial Health System

Sarah Bush Lincoln

Ratings & Reviews

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General Payments

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

**Payments by Company**
Amgen Inc.	$1,687 Enbrel $843	Prolia $400	Otezla $334	Tavneos $49	AVSOLA $24	Other $37
Pfizer Inc.	$1,104 XELJANZ $732	INFLECTRA $250	LYRICA $77	CELEBREX $24	EMBEDA $22
Novartis Pharmaceuticals Corporation	$591 COSENTYX $570	$21
Celgene Corporation	$525 Otezla $95	$430
Lilly USA, LLC	$516 TALTZ $208	FORTEO $179	OLUMIANT $129
Other	$3,069 Actemra $449	Humira $340	ORENCIA $332	BENLYSTA $294	Rinvoq $243	Other $1,411

**Types of Payments**
Food and Beverage	$7,242
Education	$250

Biography

Dr. Nehemiah Tan is an adult rheumatology specialist in Decatur, IL and Mattoon, IL. After attending Far Eastern University, Nicanor Reyes Medical Foundation for medical school, Dr. Tan completed his residency training at Mercy Hospital of Buffalo. His hospital/clinic affiliations include Sarah Bush Lincoln and Memorial Health System.

Select Year:

Dr. Nehemiah T. Tan, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Nehemiah T. Tan, MD in 2023

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. Nehemiah T. Tan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nehemiah T. Tan, 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. Nehemiah T. Tan, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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