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Dr. Mark Loren Keldahl, MD

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Specializes in: Vascular Surgery

Rush Medical College (2004)

Professional interests include: peripheral bypass surgery, spider veins, wounds, and more.

3000 North Halsted Street Suite 509
Chicago, IL 60657

(773) 296-3390

Dr. Mark Loren Keldahl, MD is a vascular surgeon in Chicago, IL specializing in vascular surgery. He graduated from Rush Medical College in 2004 and has 21 years of experience. Dr. Mark Loren Keldahl, MD is affiliated with Advocate Health Care, Advocate Illinois Masonic Medical Center, Advocate Good Samaritan Hospital, Advocate Lutheran General Hospital and Advocate Condell Medical Center.

Office Locations

Address:

3000 North Halsted Street Suite 509
Chicago, IL 60657

Some issues Dr. Mark Loren Keldahl, MD can help you with:

Peripheral Bypass Surgery

Peripheral bypass surgery is a procedure that reroutes blood flow around a blockage in the arteries of the arms or legs. Atherosclerosis, or plaque buildup, can affect these arteries in a condition called peripheral artery disease or PAD. A thick, waxy substance composed of cholesterol and minerals builds up within the blood vessels, and in severe cases it can clog arteries. Without enough blood getting to the muscles, patients can experience weakness and pain. Peripheral bypass surgery opens up a new pathway for blood to flow where it is needed. Sometimes peripheral bypass surgery is used when arteries are damaged, for instance, by a severe injury. While it can be performed in the arms, it is most commonly done in the calf, knee, thigh, or hip.

During surgery, the blockage is identified, and an incision is made to expose the artery. The surgeon prepares a tube, called a graft, to be used as the bypass. Sometimes this tube is synthetic, and sometimes a piece of the patient's own vein or artery is used. The ends of the bypass graft are attached to the artery above and below the blockage. Now blood can simply flow around and continue on its way.

After a peripheral bypass, patients may need to spend a couple of days in the hospital while doctors make sure the bypass is working and not leaking. If the bypass was done in the leg, doctors may check the pulse in the feet to make sure blood is flowing well. Patients may experience some swelling in the area where they had surgery. Raising an arm or leg will help. Patients will likely be back to normal activities within 2-3 weeks.

compression therapy	364
debridement (removal of unhealthy tissue)	100
doctor visit	546
excision	33
hospital care	82
immobilization	364
inpatient care	82
minimally invasive procedures	7
stent placement (stenting)	11
ultrasound (sonogram)	223
vascular procedures	260

**Gender**
Male	261
Female	251

**Ethnicity**
Non-Hispanic White	212
Black	129
Hispanic	150
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	203
From 75 to 84	148
85 and over	67
Less than 65	94

Hypertension	75
High Cholesterol	66
Stroke	14
Ischemic Heart Disease	52
Depression	30
Chronic Kidney Disease	50
Asthma	16
Osteoperosis	8
Atrial Fibrilation	17
Heart Failure	40
Chronic Obstructive Pulmonary Disease	22
Diabetes	54
Dementia	21
Cancer	12

compression therapy	282
debridement (removal of unhealthy tissue)	111
doctor visit	590
excision	44
hospital care	79
immobilization	282
inpatient care	79
minor procedures	22
ultrasound (sonogram)	172
vascular procedures	205

**Gender**
Male	245
Female	241

**Ethnicity**
Non-Hispanic White	238
Black	88
Hispanic	141
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	197
From 75 to 84	140
85 and over	60
Less than 65	89

Hypertension	75
High Cholesterol	65
Stroke	15
Ischemic Heart Disease	53
Depression	31
Chronic Kidney Disease	47
Asthma	15
Osteoperosis	7
Atrial Fibrilation	20
Heart Failure	40
Chronic Obstructive Pulmonary Disease	21
Diabetes	51
Dementia	17
Cancer	14

compression therapy	255
debridement (removal of unhealthy tissue)	103
doctor visit	558
endarterectomy	23
excision	63
hospital care	93
immobilization	255
inpatient care	93
minor procedures	15
neck surgery	23
ultrasound (sonogram)	153
vascular procedures	196

**Gender**
Male	442
Female	530

**Ethnicity**
Non-Hispanic White	442
Black	202
Hispanic	294
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	370
From 75 to 84	312
85 and over	132
Less than 65	158

Hypertension	75
High Cholesterol	63
Stroke	15
Ischemic Heart Disease	54
Depression	26
Chronic Kidney Disease	54
Asthma	18
Osteoperosis	7
Atrial Fibrilation	15
Heart Failure	38
Chronic Obstructive Pulmonary Disease	22
Diabetes	52
Dementia	19
Cancer	9

ablation	32
anastomosis	15
compression therapy	271
debridement (removal of unhealthy tissue)	124
dialysis access procedures	14
doctor visit	562
endarterectomy	11
excision	72
hospital care	118
immobilization	271
inpatient care	118
laser treatment	16
minimally invasive procedures	29
minor procedures	50
neck surgery	11
ultrasound (sonogram)	168
vascular procedures	245

**Gender**
Male	238
Female	242

**Ethnicity**
Non-Hispanic White	217
Black	108
Hispanic	132
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	185
From 75 to 84	162
85 and over	56
Less than 65	77

Hypertension	75
High Cholesterol	67
Stroke	13
Ischemic Heart Disease	53
Depression	27
Chronic Kidney Disease	58
Asthma	28
Osteoperosis	8
Atrial Fibrilation	18
Heart Failure	39
Chronic Obstructive Pulmonary Disease	24
Diabetes	52
Dementia	22
Cancer	10

ablation	68
anastomosis	16
angioplasty	24
compression therapy	231
debridement (removal of unhealthy tissue)	113
dialysis access procedures	15
doctor visit	664
excision	68
hospital care	178
immobilization	231
inpatient care	178
laser treatment	34
minimally invasive procedures	91
minor procedures	23
ultrasound (sonogram)	168
vascular procedures	314

**Gender**
Male	248
Female	277

**Ethnicity**
Non-Hispanic White	224
Black	99
Hispanic	174
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	197
From 75 to 84	160
85 and over	65
Less than 65	103

Hypertension	75
High Cholesterol	64
Stroke	11
Ischemic Heart Disease	53
Depression	31
Chronic Kidney Disease	59
Asthma	17
Osteoperosis	7
Atrial Fibrilation	17
Heart Failure	37
Chronic Obstructive Pulmonary Disease	20
Diabetes	56
Dementia	20
Cancer	10

ablation	38
anastomosis	19
angioplasty	16
compression therapy	382
debridement (removal of unhealthy tissue)	217
device removal	16
dialysis access procedures	18
doctor visit	800
endarterectomy	11
excision	186
hospital care	430
immobilization	382
inpatient care	430
laser treatment	19
minimally invasive procedures	53
minor procedures	32
neck surgery	11
ultrasound (sonogram)	141
vascular procedures	255

**Gender**
Male	288
Female	320

**Ethnicity**
Non-Hispanic White	260
Black	151
Hispanic	168
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	217
85 and over	92
Less than 65	116

Hypertension	75
High Cholesterol	72
Stroke	11
Ischemic Heart Disease	53
Depression	30
Chronic Kidney Disease	58
Asthma	11
Osteoperosis	8
Atrial Fibrilation	18
Heart Failure	43
Chronic Obstructive Pulmonary Disease	22
Diabetes	54
Dementia	27
Cancer	10

ablation	36
anastomosis	17
angioplasty	17
debridement (removal of unhealthy tissue)	134
dialysis access procedures	16
doctor visit	808
excision	97
hospital care	356
inpatient care	356
laser treatment	18
minimally invasive procedures	52
minor procedures	18
ultrasound (sonogram)	140
vascular procedures	285

**Gender**
Male	263
Female	278

**Ethnicity**
Non-Hispanic White	248
Black	121
Hispanic	145
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	184
From 75 to 84	201
85 and over	61
Less than 65	95

Hypertension	75
High Cholesterol	67
Stroke	9
Ischemic Heart Disease	54
Depression	29
Chronic Kidney Disease	57
Asthma	13
Osteoperosis	12
Atrial Fibrilation	16
Heart Failure	43
Chronic Obstructive Pulmonary Disease	22
Diabetes	52
Dementia	20
Cancer	12

debridement (removal of unhealthy tissue)	52
dialysis access procedures	10
doctor visit	642
excision	53
hospital care	160
inpatient care	160
ultrasound (sonogram)	47
vascular procedures	97

**Gender**
Male	213
Female	171

**Ethnicity**
Non-Hispanic White	167
Black	90
Hispanic	109
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	121
85 and over	47
Less than 65	69

Hypertension	75
High Cholesterol	67
Stroke	8
Ischemic Heart Disease	61
Depression	26
Chronic Kidney Disease	62
Asthma	10
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	44
Chronic Obstructive Pulmonary Disease	22
Diabetes	54
Dementia	17
Cancer	12

anastomosis	12
angioplasty	25
debridement (removal of unhealthy tissue)	137
dialysis access procedures	11
doctor visit	1559
excision	138
hospital care	613
inpatient care	613
minimally invasive procedures	22
minor procedures	16
plastic surgery procedures	231
reconstructive surgery	231
tissue transfer	231
ultrasound (sonogram)	162
vascular procedures	228
wound repair (e.g. stitches)	231

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. Mark Loren Keldahl, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark Loren Keldahl, MD treated as a vascular surgeon in Chicago, IL were compression therapy, immobilization, vascular procedures and inpatient care.

ablation	43
anastomosis	15
angioplasty	21
compression therapy	297
debridement (removal of unhealthy tissue)	122
device removal	16
dialysis access procedures	15
doctor visit	750
endarterectomy	15
excision	84
hospital care	234
immobilization	297
inpatient care	234
laser treatment	21
minimally invasive procedures	45
minor procedures	25
neck surgery	15
plastic surgery procedures	231
reconstructive surgery	231
stent placement (stenting)	11
tissue transfer	231
ultrasound (sonogram)	154
vascular procedures	240
wound repair (e.g. stitches)	231

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Mark Loren Keldahl, MD.

**Gender**
Female	231
Male	219

**Ethnicity**
Black / African American	98
Asian / Pacific Islander	1
Non-Hispanic White	200
Native American / Alaskan Native	0
Hispanic	131
Other	0

**Age**
85 and over	58
75 to 84	146
Less than 65	80
65 to 74	166

Average of Total of Conditions of Medicare patients treated by Dr. Mark Loren Keldahl, MD From 2013 - 2021

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

Hypertension	60
High Cholesterol	53
Stroke	9
Ischemic Heart Disease	43
Depression	23
Chronic Kidney Disease	44
Asthma	12
Osteoporosis	6
Heart Failure	32
Chronic Obstructive Pulmonary Disease	17
Diabetes	42
Atrial Fibrillation	13
Cancer	8
Dementia	16

Education & Training

Dr. Mark Loren Keldahl, MD graduated from Rush Medical College in 2004. He has a state license in Illinois.

Medical School: Rush Medical College (2004)

Licensed In: Illinois

Affiliations & Hospitals

Dr. Mark Loren Keldahl, MD is associated with these hospitals and organizations:

Advocate Health Care

Advocate Illinois Masonic Medical Center

Advocate Good Samaritan Hospital

Advocate Lutheran General Hospital

Advocate Condell Medical Center

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. Mark Loren Keldahl, MD appears to accept the following insurance providers: CIGNA Choice Fund PPO, United Healthcare Select Plus POS, Magellan Health Services, United Healthcare Options PPO, Humana HMO Premier, United Healthcare Indemnity, Humana POS, Humana National POS - Open Access, Humana HMO, Unicare PPO, Blue Choice, Aetna POS, Aetna QPOS, TRICARE Prime, Aetna Open Choice PPO, Aetna Open Access HMO, Aetna Medicare HMO, Golden Rule, Great-West Healthcare, Community Care Network (CCN), TRICARE, Aetna Open Access Aetna Select, Aetna Select, Aetna EPO, Humana National HMO, Humana National EPO, Aetna HMO, CIGNA Open Access POS, Humana ChoiceCare PPO, CIGNA PPO, Aetna Medicare PPO, United Healthcare Choice Plus PPO, WellCare, AARP, Medicare Advantage, Humana Medicare Choice PPO, Blue Advantage HMO, Blue Cross Medicare Advantage PPO, United Healthcare, Medicare, Humana, Cigna, United Healthcare Navigate HMO, First Health, Beech Street, HealthLink PPO, HealthSmart, Humana PPO, Aetna, CIGNA Open Access Plus POS, PHCS PPO, CHAMPVA, MultiPlan PPO, SEIU - Local 4 PPO, Union Medical Care PPO, AAH UMR Select - Team Member Plan, HST Care Connect EPO, United Surest (previously Bind), Blue Cross HMO Illinois, Union Health Services, Inc., Blue Cross Med Select PPO, Benefits Services and Systems, Inc, FirstHealth, BCBS Commercial PPO, Blue Precision HMO, Provider Network of America (PNOA), AAH UMR Preferred - Team Member Plan, UFCW Local 1546 Health and Welfare Fund (UMC), Blue Cross Community FHP, SEIU - Local 4 HMO, Meridian MMAI, Meridian, HST Care Connect PPO, Zing Health, Blue Cross Community MMAI, BlueCare Direct HMO, Benefit Plan Administrators (BPA), Blue Cross Medicare Supplement PPO and SIHO PPO.

Insurance Accepted by Provider includes:

According to our sources, Dr. Mark Loren Keldahl, MD accepts the following insurance providers:

CIGNA Choice Fund PPO

United Healthcare Select Plus POS

Magellan Health Services

United Healthcare Options PPO

Humana HMO Premier

United Healthcare Indemnity

Humana POS

Humana National POS - Open Access

Humana HMO

Unicare PPO

Blue Choice

Aetna POS

Aetna QPOS

TRICARE Prime

Aetna Open Choice PPO

Aetna Open Access HMO

Aetna Medicare HMO

Golden Rule

Great-West Healthcare

Community Care Network (CCN)

TRICARE

Aetna Open Access Aetna Select

Aetna Select

Aetna EPO

Humana National HMO

Humana National EPO

Aetna HMO

CIGNA Open Access POS

Humana ChoiceCare PPO

CIGNA PPO

Aetna Medicare PPO

United Healthcare Choice Plus PPO

WellCare

AARP

Medicare Advantage

Humana Medicare Choice PPO

Blue Advantage HMO

Blue Cross Medicare Advantage PPO

United Healthcare

Medicare

Humana

Cigna

United Healthcare Navigate HMO

First Health

Beech Street

HealthLink PPO

HealthSmart

Humana PPO

Aetna

CIGNA Open Access Plus POS

PHCS PPO

CHAMPVA

MultiPlan PPO

SEIU - Local 4 PPO

Union Medical Care PPO

AAH UMR Select - Team Member Plan

HST Care Connect EPO

United Surest (previously Bind)

Blue Cross HMO Illinois

Union Health Services, Inc.

Blue Cross Med Select PPO

Benefits Services and Systems, Inc

FirstHealth

BCBS Commercial PPO

Blue Precision HMO

Provider Network of America (PNOA)

AAH UMR Preferred - Team Member Plan

UFCW Local 1546 Health and Welfare Fund (UMC)

Blue Cross Community FHP

SEIU - Local 4 HMO

Meridian MMAI

Meridian

HST Care Connect PPO

Zing Health

Blue Cross Community MMAI

BlueCare Direct HMO

Benefit Plan Administrators (BPA)

Blue Cross Medicare Supplement PPO

SIHO PPO

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General Payments

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

**Payments by Company**
LeMaitre Vascular, Inc.	$668,134 RESTOREFLO $417,857	RESTOREFLOW $226,194	HYDRO LEMAITRE VALVULOTOME $12,500	ALBOGRAFT $6,250	VALVULOTOM $2,550	Other $2,783
Abbott Laboratories	$7,856 Omnilink Elite vascular stent system $2,608	Fox Sv PTA catheter and Armada 14 percutaneous catheter and Viatrac 14 Plus peripheral catheter $1,742	Supera peripheral stent system $1,647	Perclose ProGlide suture mediated closure system $641	Perclose ProStyle $306	Other $913
AngioDynamics, Inc.	$1,858 Auryon Laser System 100-120 Vac $1,829	$29
Pacira Pharmaceuticals Incorporated	$1,151 Exparel $1,151
W. L. Gore & Associates, Inc.	$751 EXCLUDER Conformable AAA Endoprosthesis with Active Control $372	VIABAHN Endoprosthesis $211	C3 Delivery System $148	Vascular Graft $20
Other	$1,961 LIMFLOW SYSTEM $341	Aortic Stent Grafts $302	ENDURANT IIS $261	RELAY $190	XARELTO $173	Other $694

**Types of Payments**
Consulting Fee	$659,940
Food and Beverage	$10,506
Travel and Lodging	$9,090
Education	$1,175
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$1,000

Biography

Dr. Mark Keldahl is a specialist in vascular surgery. Dr. Keldahl studied medicine at Rush Medical College. His clinical interests include peripheral bypass surgery, surgical repair, and carotid artery stenting. He appears to be an in-network provider for Aetna EPO, Blue California, and Coventry, in addition to other insurance carriers. Dr. Keldahl speaks Spanish. His professional affiliations include Advocate Condell Medical Center, Advocate Lutheran General Hospital, and Advocate Good Samaritan Hospital.