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Home > MO Providers > Vascular Surgeons

Dr. Thomas E. Niesen, MD

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Specializes in: Vascular Surgery and General Surgery

Tulane University School of Medicine

Professional interests include: varicose veins, dialysis access procedures, gallbladder problems, and more.

226 S. Woods Mill Road Suite 49
Chesterfield, MO 63017

(314) 434-1211

Dr. Thomas E. Niesen, MD is a vascular surgeon in Chesterfield, MO specializing in vascular surgery and general surgery. He graduated from Tulane University School of Medicine. Dr. Thomas E. Niesen, MD is affiliated with St. Luke's Hospital, St. Luke's and St. Luke's Medical Group.

Office Locations

St. Luke's Medical Group

226 S. Woods Mill Road Suite 49
Chesterfield, MO 63017

(314) 434-1211

(314) 434-4419

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Noteworthy Medicare Patient Procedures Performed by Dr. Thomas E. Niesen, MD in 2023

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

Top 5%

By Volume:

abdominal duplex ultrasound

ankle brachial index

carotid duplex ultrasound

inpatient hospital care

lower extremity arterial duplex

lower extremity artery stenting

lower extremity venous duplex

pelvic duplex ultrasound

testicular duplex ultrasound

ultrasound

vascular procedures

By Affordability:

anastomosis

arterial stenting

arteriovenous anastomosis

AV fistula surgery

endovascular stenting

hemodialysis access surgery

lower extremity artery stenting

peripheral artery stenting

peripheral vascular interventions

peripheral vascular stenting

vascular anastomosis

In 2023, among providers in related specialties within Missouri, Dr. Thomas E. Niesen, MD performed more abdominal duplex ultrasound, ankle brachial index (ABI), carotid duplex ultrasound, inpatient hospital care (for patient admitted to hospital), lower extremity arterial duplex, lower extremity (leg) artery stenting, lower extremity venous duplex, pelvic duplex ultrasound, testicular duplex ultrasound, ultrasound (sonogram), and vascular procedures procedures for Medicare patients than 95% of them and he also had a list price for anastomosis, arterial stenting, arteriovenous (AV) anastomosis, AV fistula surgery, endovascular stenting, hemodialysis access surgery, lower extremity (leg) artery stenting, peripheral artery stenting, peripheral vascular interventions, peripheral vascular stenting, and vascular anastomosis 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 25%

By Volume:

abdominal aortogram

extremity arteriogram

hemodialysis access duplex ultrasound

tunneled central line placement

By Affordability:

extremity arteriogram

peripheral angiogram

In 2012, among providers in related specialties within Missouri, Dr. Thomas E. Niesen, MD performed more abdominal aortogram, extremity arteriogram, hemodialysis access duplex ultrasound, and tunneled central line placement procedures for Medicare patients than 75% of them and he also had a list price for extremity arteriogram, and peripheral (arm or leg) angiogram 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. Thomas E. Niesen, MD treated as a vascular surgeon in Chesterfield, MO during 2012 were vascular procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. Thomas E. Niesen, MD for Medicare patients.

abdominal imaging	136
abdominal surgery	36
anastomosis	18
catheterization	55
compression therapy	113
device removal	27
dialysis access procedures	55
doctor visit	689
emergency care	17
endarterectomy	56
gastrointestinal procedures	36
hospital care	215
immobilization	113
inpatient care	215
minimally invasive procedures	60
neck surgery	32
open surgery	24
pelvic imaging	161
stent placement (stenting)	32
ultrasound (sonogram)	1879
vascular procedures	2517

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Thomas E. Niesen, MD treated as a vascular surgeon in Chesterfield, MO during 2013 were vascular procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. Thomas E. Niesen, MD for Medicare patients.

abdominal imaging	132
abdominal surgery	31
abscess drainage	15
catheterization	47
compression therapy	138
doctor visit	632
endarterectomy	43
gastrointestinal procedures	31
hospital care	217
immobilization	138
incision and drainage	15
inpatient care	217
minimally invasive procedures	41
minor procedures	15
neck surgery	43
open surgery	20
pelvic imaging	166
skin surgery	15
stent placement (stenting)	30
ultrasound (sonogram)	1794
vascular procedures	2375

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas E. Niesen, MD.

**Gender**
Male	920
Female	951

**Ethnicity**
Non-Hispanic White	1730
Black	97
Hispanic	13
Asian	18
Other	13
Native American	0

**Age**
From 65 to 74	654
From 75 to 84	726
85 and over	376
Less than 65	115

Conditions of Medicare patients treated by Dr. Thomas E. Niesen, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	57
Depression	26
Chronic Kidney Disease	35
Asthma	9
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	32
Chronic Obstructive Pulmonary Disease	22
Diabetes	35
Dementia	14
Cancer	18

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Thomas E. Niesen, MD treated as a vascular surgeon in Chesterfield, MO during 2014 were vascular procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. Thomas E. Niesen, MD for Medicare patients.

abdominal imaging	133
abdominal surgery	15
abscess drainage	16
anastomosis	20
catheterization	51
compression therapy	125
dialysis access procedures	36
doctor visit	648
endarterectomy	59
gastrointestinal procedures	15
hospital care	230
immobilization	125
incision and drainage	16
inpatient care	230
minimally invasive procedures	62
minor procedures	16
neck surgery	47
pelvic imaging	133
skin surgery	16
stent placement (stenting)	47
ultrasound (sonogram)	1955
vascular procedures	2611

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas E. Niesen, MD.

**Gender**
Male	968
Female	1006

**Ethnicity**
Non-Hispanic White	1824
Black	102
Hispanic	14
Asian	19
Other	15
Native American	0

**Age**
From 65 to 74	693
From 75 to 84	724
85 and over	438
Less than 65	119

Conditions of Medicare patients treated by Dr. Thomas E. Niesen, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	60
Depression	30
Chronic Kidney Disease	36
Asthma	10
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	33
Chronic Obstructive Pulmonary Disease	22
Diabetes	34
Dementia	14
Cancer	17

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Thomas E. Niesen, MD treated as a vascular surgeon in Chesterfield, MO during 2015 were vascular procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. Thomas E. Niesen, MD for Medicare patients.

abdominal imaging	177
abdominal surgery	11
anastomosis	18
catheterization	47
device removal	13
dialysis access procedures	35
doctor visit	638
endarterectomy	61
gastrointestinal procedures	11
hospital care	189
inpatient care	189
minimally invasive procedures	59
neck surgery	43
open surgery	11
pelvic imaging	177
stent placement (stenting)	59
ultrasound (sonogram)	2751
vascular procedures	3636

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas E. Niesen, MD.

**Gender**
Male	2486
Female	2604

**Ethnicity**
Non-Hispanic White	4662
Black	276
Hispanic	50
Asian	54
Other	0
Native American	0

**Age**
From 65 to 74	1728
From 75 to 84	1928
85 and over	1134
Less than 65	300

Conditions of Medicare patients treated by Dr. Thomas E. Niesen, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	59
Depression	28
Chronic Kidney Disease	37
Asthma	17
Osteoperosis	12
Atrial Fibrilation	23
Heart Failure	35
Chronic Obstructive Pulmonary Disease	24
Diabetes	36
Dementia	16
Cancer	16

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Thomas E. Niesen, MD treated as a vascular surgeon in Chesterfield, MO during 2016 were vascular procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. Thomas E. Niesen, MD for Medicare patients.

abdominal imaging	168
abdominal surgery	11
ablation	28
abscess drainage	11
angioplasty	26
catheterization	21
device removal	21
dialysis access procedures	42
doctor visit	610
endarterectomy	40
gastrointestinal procedures	11
hospital care	176
incision and drainage	11
inpatient care	176
minimally invasive procedures	79
minor procedures	11
neck surgery	28
open surgery	11
pelvic imaging	168
skin surgery	11
stent placement (stenting)	51
ultrasound (sonogram)	2040
vascular procedures	2823
X-rays	30

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas E. Niesen, MD.

**Gender**
Male	966
Female	982

**Ethnicity**
Non-Hispanic White	1762
Black	112
Hispanic	0
Asian	21
Other	37
Native American	0

**Age**
From 65 to 74	642
From 75 to 84	737
85 and over	436
Less than 65	133

Conditions of Medicare patients treated by Dr. Thomas E. Niesen, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	63
Depression	29
Chronic Kidney Disease	43
Asthma	25
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	37
Chronic Obstructive Pulmonary Disease	24
Diabetes	38
Dementia	18
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Thomas E. Niesen, MD treated as a vascular surgeon in Chesterfield, MO during 2017 were vascular procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. Thomas E. Niesen, MD for Medicare patients.

abdominal imaging	145
catheterization	45
compression therapy	27
device removal	21
doctor visit	644
endarterectomy	34
hospital care	189
immobilization	27
inpatient care	189
minimally invasive procedures	45
neck surgery	34
pelvic imaging	145
stent placement (stenting)	45
ultrasound (sonogram)	2028
vascular procedures	2758

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas E. Niesen, MD.

**Gender**
Male	986
Female	950

**Ethnicity**
Non-Hispanic White	1767
Black	101
Hispanic	20
Asian	0
Other	31
Native American	0

**Age**
From 65 to 74	674
From 75 to 84	733
85 and over	413
Less than 65	116

Conditions of Medicare patients treated by Dr. Thomas E. Niesen, MD in 2017

Hypertension	75
High Cholesterol	73
Stroke	13
Ischemic Heart Disease	61
Depression	28
Chronic Kidney Disease	44
Asthma	10
Osteoperosis	9
Atrial Fibrilation	23
Heart Failure	36
Chronic Obstructive Pulmonary Disease	24
Diabetes	38
Dementia	17
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Thomas E. Niesen, MD treated as a vascular surgeon in Chesterfield, MO during 2018 were vascular procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. Thomas E. Niesen, MD for Medicare patients.

abdominal imaging	179
ablation	26
anastomosis	13
angioplasty	20
catheterization	41
compression therapy	50
device removal	25
dialysis access procedures	28
doctor visit	785
endarterectomy	33
gastrointestinal procedures	12
hospital care	294
immobilization	50
inpatient care	294
minimally invasive procedures	115
neck surgery	33
pelvic imaging	179
stent placement (stenting)	57
ultrasound (sonogram)	2366
vascular procedures	3226

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas E. Niesen, MD.

**Gender**
Male	1142
Female	1106

**Ethnicity**
Non-Hispanic White	2038
Black	125
Hispanic	28
Asian	0
Other	32
Native American	0

**Age**
From 65 to 74	762
From 75 to 84	854
85 and over	482
Less than 65	150

Conditions of Medicare patients treated by Dr. Thomas E. Niesen, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	62
Depression	29
Chronic Kidney Disease	45
Asthma	9
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	37
Chronic Obstructive Pulmonary Disease	22
Diabetes	38
Dementia	15
Cancer	17

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Thomas E. Niesen, MD treated as a vascular surgeon in Chesterfield, MO during 2019 were vascular procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. Thomas E. Niesen, MD for Medicare patients.

abdominal imaging	176
anastomosis	32
angioplasty	30
catheterization	40
device removal	27
dialysis access procedures	49
doctor visit	665
endarterectomy	44
hospital care	217
inpatient care	217
minimally invasive procedures	86
neck surgery	44
pelvic imaging	176
stent placement (stenting)	56
ultrasound (sonogram)	2607
vascular procedures	3500

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas E. Niesen, MD.

**Gender**
Male	1244
Female	1147

**Ethnicity**
Non-Hispanic White	2158
Black	140
Hispanic	0
Asian	27
Other	49
Native American	0

**Age**
From 65 to 74	790
From 75 to 84	1009
85 and over	468
Less than 65	124

Conditions of Medicare patients treated by Dr. Thomas E. Niesen, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	62
Depression	28
Chronic Kidney Disease	47
Asthma	8
Osteoperosis	9
Atrial Fibrilation	23
Heart Failure	38
Chronic Obstructive Pulmonary Disease	22
Diabetes	38
Dementia	15
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Thomas E. Niesen, MD treated as a vascular surgeon in Chesterfield, MO during 2020 were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Thomas E. Niesen, MD for Medicare patients.

abdominal imaging	165
anastomosis	11
angioplasty	14
catheterization	35
compression therapy	30
device removal	24
dialysis access procedures	52
doctor visit	520
endarterectomy	28
hospital care	229
immobilization	30
inpatient care	216
minimally invasive procedures	68
neck surgery	28
outpatient care	13
pelvic imaging	165
stent placement (stenting)	54
thrombectomy (blood clot removal)	18
ultrasound (sonogram)	2086
vascular procedures	2850

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas E. Niesen, MD.

**Gender**
Male	974
Female	924

**Ethnicity**
Non-Hispanic White	1731
Black	93
Hispanic	18
Asian	21
Other	35
Native American	0

**Age**
From 65 to 74	639
From 75 to 84	793
85 and over	375
Less than 65	91

Conditions of Medicare patients treated by Dr. Thomas E. Niesen, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	61
Depression	30
Chronic Kidney Disease	46
Asthma	7
Osteoperosis	9
Atrial Fibrilation	21
Heart Failure	37
Chronic Obstructive Pulmonary Disease	24
Diabetes	39
Dementia	17
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Thomas E. Niesen, MD treated as a vascular surgeon in Chesterfield, MO during 2021 were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Thomas E. Niesen, MD for Medicare patients.

abdominal imaging	167
anastomosis	13
angioplasty	21
catheterization	48
device removal	26
dialysis access procedures	46
doctor visit	513
endarterectomy	22
hospital care	287
inpatient care	273
minimally invasive procedures	58
neck surgery	22
outpatient care	14
pelvic imaging	167
stent placement (stenting)	37
ultrasound (sonogram)	1885
vascular procedures	2510

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas E. Niesen, MD.

**Gender**
Male	898
Female	841

**Ethnicity**
Non-Hispanic White	1584
Black	87
Hispanic	0
Asian	0
Other	36
Native American	0

**Age**
From 65 to 74	505
From 75 to 84	782
85 and over	347
Less than 65	105

Conditions of Medicare patients treated by Dr. Thomas E. Niesen, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	59
Depression	27
Chronic Kidney Disease	46
Asthma	9
Osteoperosis	10
Atrial Fibrilation	22
Heart Failure	36
Chronic Obstructive Pulmonary Disease	22
Diabetes	36
Dementia	15
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Thomas E. Niesen, MD treated as a vascular surgeon in Chesterfield, MO during 2022 were vascular procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. Thomas E. Niesen, MD for Medicare patients.

abdominal imaging	161
abdominal surgery	13
anastomosis	11
catheterization	55
compression therapy	40
device removal	38
dialysis access procedures	67
doctor visit	419
endarterectomy	12
gastrointestinal procedures	13
hospital care	193
immobilization	40
inpatient care	193
minimally invasive procedures	26
neck surgery	12
open surgery	13
pelvic imaging	161
stent placement (stenting)	26
thrombectomy (blood clot removal)	15
ultrasound (sonogram)	1637
vascular procedures	2167

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas E. Niesen, MD.

**Gender**
Male	802
Female	674

**Ethnicity**
Non-Hispanic White	1336
Black	67
Hispanic	0
Asian	0
Other	48
Native American	0

**Age**
From 65 to 74	459
From 75 to 84	638
85 and over	314
Less than 65	65

Conditions of Medicare patients treated by Dr. Thomas E. Niesen, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	56
Depression	26
Chronic Kidney Disease	38
Asthma	11
Osteoperosis	12
Atrial Fibrilation	36
Heart Failure	35
Chronic Obstructive Pulmonary Disease	25
Diabetes	37
Dementia	10
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Thomas E. Niesen, MD for Medicare patients.

The highest averages for the top procedures that Dr. Thomas E. Niesen, MD treated as a vascular surgeon in Chesterfield, MO were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

abdominal imaging	158
abdominal surgery	19
ablation	27
abscess drainage	14
anastomosis	17
angioplasty	22
catheterization	44
compression therapy	74
device removal	24
dialysis access procedures	45
doctor visit	614
emergency care	17
endarterectomy	39
gastrointestinal procedures	18
hospital care	221
immobilization	74
incision and drainage	14
inpatient care	219
minimally invasive procedures	63
minor procedures	14
neck surgery	33
open surgery	15
outpatient care	13
pelvic imaging	163
skin surgery	14
stent placement (stenting)	44
thrombectomy (blood clot removal)	16
ultrasound (sonogram)	2093
vascular procedures	2815
X-rays	30

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Thomas E. Niesen, MD.

**Gender**
Male	1035
Female	1016

**Ethnicity**
Black / African American	109
Asian / Pacific Islander	14
Non-Hispanic White	1872
Native American / Alaskan Native	0
Hispanic	13
Other	26

**Age**
75 to 84	811
85 and over	434
Less than 65	119
65 to 74	686

Average of Total of Conditions of Medicare patients treated by Dr. Thomas E. Niesen, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Thomas E. Niesen, MD treated were high cholesterol, hypertension, ischemic heart disease and chronic kidney disease.

Hypertension	68
High Cholesterol	68
Stroke	12
Ischemic Heart Disease	54
Depression	25
Chronic Kidney Disease	37
Asthma	10
Osteoporosis	9
Heart Failure	32
Chronic Obstructive Pulmonary Disease	21
Diabetes	33
Atrial Fibrillation	21
Dementia	13
Cancer	14

Education & Training

Dr. Thomas E. Niesen, MD graduated from Tulane University School of Medicine. He completed residency at Barnes-Jewish Hospital. He has a state license in Missouri.

Medical School: Tulane University School of Medicine

Residency: Barnes-Jewish Hospital

Licensed In: Missouri

Affiliations & Hospitals

Dr. Thomas E. Niesen, MD is associated with these hospitals and organizations:

St. Luke's Hospital

St. Luke's

St. Luke's Medical Group

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. Thomas E. Niesen, MD appears to accept the following insurance providers: Oscar, WellCare, Aetna, United Healthcare, TRICARE, Medicare, Medicaid, Humana, Railroad Medicare, Cigna, Anthem, HealthLink, Private Healthcare Systems (PHCS), Healthy Blue, Allwell, Medica (WellFirst), HomeState, Essence, Ambetter and Ascension.

Insurance Accepted by Provider includes:

According to our sources, Dr. Thomas E. Niesen, MD accepts the following insurance providers:

Oscar

WellCare

Aetna

United Healthcare

TRICARE

Medicare

Medicaid

Humana

Railroad Medicare

Cigna

Anthem

HealthLink

Private Healthcare Systems (PHCS)

Healthy Blue

Allwell

Medica (WellFirst)

HomeState

Essence

Ambetter

Ascension

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General Payments

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

**Payments by Company**
Endologix, Inc.	$536 AFX $309	OVATION $227
Cook Incorporated	$340 AI - AAA $148	AI - Advanced Tech $107	Cook Medical AAA $26	AI - Accessories $21	PI - Self-Expanding Stent $13	Other $24
Davol Inc.	$270 PHASIX $167	Phasix Mesh $71	$32
W. L. Gore & Associates, Inc.	$177 EXCLUDER AAA Endoprosthesis $109	GORE ENFORM Preperitoneal Biomaterial $48	C3 Delivery System $20
Medtronic, Inc.	$150 CONCERTOTM $31	EEA $24	LigaSure $23	ENDOFLIP $20	Signia $20	Other $34
Other	$918 Exparel $67	Fusion Bioline Supported Vascular Grafts $54	XENOSURE $51	ELIQUIS $49	VALVULOTOM $43	Other $653

**Types of Payments**
Food and Beverage	$2,381
Entertainment	$11

Biography

Dr. Thomas Niesen is a specialist in general surgery and vascular surgery. His areas of expertise include the following: dialysis access procedures, abdominal aortic aneurysm (AAA), and gallbladder problems. Dr. Niesen is in-network for several insurance carriers, including Anthem, Blue California, and Aetna. He graduated from Tulane University School of Medicine and then he performed his residency at Barnes-Jewish Hospital. He is affiliated with St. Luke's. According to St. Luke's, new patients are welcome to contact Dr. Niesen's office in Chesterfield, MO.