i
Loading Page
loading, please wait

Select Year:

Home > TX Providers
placeholder image of provider

Dr. Margaret E. Cook, MD

(Dr. Margaret Eileen Cook, MD)

(No ratings)

Specializes in: Adult Nephrology
University of Oklahoma College of Medicine
Professional interests include: kidney transplant, hypertension (high blood pressure), chronic kidney disease (CKD), and more.
12221 North Mopac Expressway Ground Floor West Wing
Austin, TX 78758

Dr. Margaret E. Cook, MD is a nephrologist in Austin, TX specializing in adult nephrology. She graduated from University of Oklahoma College of Medicine. Dr. Margaret E. Cook, MD is affiliated with St. David's HealthCare, Ascension, Ascension Seton Williamson, St. David's Round Rock Medical Center St. David's Medical Center St. David's North Austin Medical Center and THE AUSTIN DIAGNOSTIC CLINIC, PLLC.

View Doctor's Full Profile (512) 901-1111

Office Locations

St. David's Round Rock Medical Center St. David's Medical Center St. David's North Austin Medical Center

12221 North Mopac Expressway Ground Floor West Wing
Austin, TX 78758
(512) 901-1111
open_in_new

Some issues Dr. Margaret E. Cook, MD can help you with:

Dialysis

Dialysis is a procedure that replicates renal (kidney) function by filtering patients' blood. When kidneys do not work properly, waste can accumulate in the blood and unbalanced chemicals can impair the body's critical functions. In order to stay healthy, a person without proper kidney function must receive dialysis. There are two forms of dialysis treatment: hemodialysis and peritoneal dialysis. Both forms of dialysis are recurring treatments that in many cases last throughout the lifetime of the affected patient. Patients who briefly lose renal function may slowly reduce the frequency of dialysis sessions until their kidneys recover. However, most patients who start on dialysis remain on dialysis for the rest of their lives or until they receive a kidney transplant.

A number of conditions can worsen renal function and lead to end-stage or acute kidney failure. When kidneys fail (i.e. nearly 90 percent of their function is lost), dialysis is typically prescribed. Conditions that cause chronic kidney failure (eventually requiring dialysis) include:

  • Type 1 and 2 Diabetes
  • Pyelonephritis, recurring kidney infection
  • Glomerulonephritis, inflammation of the kidney's filtering parts
  • Polycystic kidney disease
  • Interstitial nephritis, inflammation of the kidney's tubules
  • High blood pressure
  • Vesicoureteral reflux, improper bladder emptying

For hemodialysis (the more common form of dialysis), a patient will visit a hospital or clinic and be connected to a dialysis machine by a needle attached to a tube that draws blood from the arm. The drawn blood is transferred to the dialysis machine, where it is filtered and separated until clean. Waste products from the blood pass into a fluid called dialysate, which is pumped out of the machine into a waste receptacle. The machine also measures and helps ensure the blood has the appropriate level of fluid, electrolytes, and pH. A tube delivers the cleaned blood back into the patient's body. A dialysis session like this will typically last for three to four hours, with a patient undergoing dialysis around three times per week.

A second method of dialysis is known as peritoneal dialysis. Unlike hemodialysis, peritoneal dialysis can be performed at home by oneself after an initial surgery. To start, a physician (generally a surgeon) will make a small incision in the lower abdomen and insert and surgically attach a catheter (thin tube). At home, the patient connects a pump to the abdomen catheter, delivering dialysate (dialysis fluid) from a bag hanging on a wheeled stand. This fluid enters the peritoneal cavity (greater abdomen area containing the stomach, liver, and intestines) and collects waste through osmosis, where waste in the blood moves across a membrane and into the dialysate. This process continues for several hours until the fluid concentration is equal between the blood and dialysate, at which point the fluid can be drained. The fluid can then be passed through a machine called a cycler, which removes waste and allows for the dialysate to be reused. This process is repeated about four times per day. Dialysis patients must limit the amount of fluid they consume prior to receiving dialysis and should also avoid eating salty foods. The cycler cannot filter more than a certain amount of waste products from the blood.

Kidneys are important organs, and dialysis treatments are vital for those with renal dysfunction. For many, dialysis is not so much a medical procedure but a part of their normal life.

Noteworthy Medicare Patient Procedures Performed by Dr. Margaret E. Cook, MD in 2023

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

Top 5%

By Affordability:

hospital care
inpatient care
inpatient hospital care
iron tests
susceptibility testing
urine culture

In 2023, Dr. Margaret E. Cook, MD had a list price for hospital care, inpatient care, inpatient hospital care (for patient admitted to hospital), iron tests, susceptibility testing, and urine culture that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Texas. 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 10%

By Volume:

lab tests
uric acid blood test

By Affordability:

blood draw
blood draw for lab tests
phlebotomy for lab tests
venipuncture

In 2023, among providers in related specialties within Texas, Dr. Margaret E. Cook, MD performed more lab tests, and uric acid blood test procedures for Medicare patients than 90% of them and she also 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 90% 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:

blood draw
complete blood count
hemodialysis
phlebotomy for lab tests

By Affordability:

A1C test
cholesterol screening
complete blood count
glycated protein test
lipid profile
phosphorus blood test
phosphorus test
renal panel
total protein test
total protein urine test
uric acid blood test
uric acid test
vitamin D test

In 2012, among providers in related specialties within Texas, Dr. Margaret E. Cook, MD performed more blood draw, complete blood count (CBC), hemodialysis, and phlebotomy for lab tests procedures for Medicare patients than 75% of them and she also had a list price for A1C test, cholesterol screening, complete blood count (CBC), glycated protein test, lipid profile, phosphorus blood test, phosphorus test, renal (kidney) panel, total protein test, total protein urine test, uric acid blood test, uric acid test, and vitamin D test 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. Margaret E. Cook, MD treated as a nephrologist in Austin, TX during 2012 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Margaret E. Cook, MD for Medicare patients.

blood draw 578
diabetes management 22
dialysis 314
doctor visit 760
hospital care 638
inpatient care 638
lab tests 3130
preventive care 137
thyroid function tests 30
vaccines 54

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Margaret E. Cook, MD treated as a nephrologist in Austin, TX during 2013 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Margaret E. Cook, MD for Medicare patients.

blood draw 577
diabetes management 19
dialysis 320
doctor visit 737
hospital care 616
inpatient care 616
lab tests 3203
preventive care 140
thyroid function tests 26
vaccines 30

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret E. Cook, MD.

Gender
Male 302
Female 338
Ethnicity
Non-Hispanic White 402
Black 107
Hispanic 98
Asian 0
Other 0
Native American 0
Age
From 65 to 74 204
From 75 to 84 176
85 and over 100
Less than 65 160

Conditions of Medicare patients treated by Dr. Margaret E. Cook, MD in 2013

Hypertension 75
High Cholesterol 67
Stroke 8
Ischemic Heart Disease 51
Depression 30
Chronic Kidney Disease 75
Asthma 11
Osteoperosis 11
Atrial Fibrilation 18
Heart Failure 45
Chronic Obstructive Pulmonary Disease 21
Diabetes 57
Dementia 16
Cancer 11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Margaret E. Cook, MD treated as a nephrologist in Austin, TX during 2014 were lab tests, blood draw, hospital care and inpatient care.

Volume of procedures performed by Dr. Margaret E. Cook, MD for Medicare patients.

blood draw 566
diabetes management 25
dialysis 274
doctor visit 694
hemofiltration 41
hospital care 420
inpatient care 420
lab tests 3331
preventive care 171
thyroid function tests 30
vaccines 29

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret E. Cook, MD.

Gender
Male 274
Female 321
Ethnicity
Non-Hispanic White 370
Black 103
Hispanic 85
Asian 0
Other 0
Native American 0
Age
From 65 to 74 199
From 75 to 84 157
85 and over 71
Less than 65 168

Conditions of Medicare patients treated by Dr. Margaret E. Cook, MD in 2014

Hypertension 75
High Cholesterol 68
Stroke 6
Ischemic Heart Disease 48
Depression 29
Chronic Kidney Disease 75
Asthma 12
Osteoperosis 9
Atrial Fibrilation 16
Heart Failure 43
Chronic Obstructive Pulmonary Disease 19
Diabetes 56
Dementia 13
Cancer 12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Margaret E. Cook, MD treated as a nephrologist in Austin, TX during 2015 were lab tests, blood draw, hospital care and inpatient care.

Volume of procedures performed by Dr. Margaret E. Cook, MD for Medicare patients.

blood draw 555
diabetes management 22
dialysis 246
doctor visit 686
hemofiltration 21
hospital care 511
inpatient care 511
lab tests 3284
preventive care 126
thyroid function tests 43
vaccines 26

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret E. Cook, MD.

Gender
Male 530
Female 626
Ethnicity
Non-Hispanic White 716
Black 186
Hispanic 186
Asian 0
Other 0
Native American 0
Age
From 65 to 74 370
From 75 to 84 326
85 and over 134
Less than 65 326

Conditions of Medicare patients treated by Dr. Margaret E. Cook, MD in 2015

Hypertension 75
High Cholesterol 67
Stroke 8
Ischemic Heart Disease 48
Depression 29
Chronic Kidney Disease 75
Asthma 18
Osteoperosis 10
Atrial Fibrilation 15
Heart Failure 44
Chronic Obstructive Pulmonary Disease 22
Diabetes 58
Dementia 15
Cancer 10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Margaret E. Cook, MD treated as a nephrologist in Austin, TX during 2016 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Margaret E. Cook, MD for Medicare patients.

blood draw 517
diabetes management 21
dialysis 344
doctor visit 610
hospital care 901
inpatient care 901
lab tests 3249
preventive care 108
thyroid function tests 42
vaccines 23

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret E. Cook, MD.

Gender
Male 251
Female 306
Ethnicity
Non-Hispanic White 320
Black 96
Hispanic 102
Asian 28
Other 0
Native American 0
Age
From 65 to 74 199
From 75 to 84 151
85 and over 54
Less than 65 153

Conditions of Medicare patients treated by Dr. Margaret E. Cook, MD in 2016

Hypertension 75
High Cholesterol 70
Stroke 10
Ischemic Heart Disease 54
Depression 34
Chronic Kidney Disease 75
Asthma 26
Osteoperosis 11
Atrial Fibrilation 15
Heart Failure 48
Chronic Obstructive Pulmonary Disease 22
Diabetes 61
Dementia 24
Cancer 9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Margaret E. Cook, MD treated as a nephrologist in Austin, TX during 2017 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Margaret E. Cook, MD for Medicare patients.

blood draw 435
diabetes management 28
dialysis 263
doctor visit 455
hospital care 938
inpatient care 938
lab tests 2595
preventive care 118
thyroid function tests 19
vaccines 19

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret E. Cook, MD.

Gender
Male 248
Female 273
Ethnicity
Non-Hispanic White 324
Black 71
Hispanic 90
Asian 23
Other 13
Native American 0
Age
From 65 to 74 185
From 75 to 84 142
85 and over 56
Less than 65 138

Conditions of Medicare patients treated by Dr. Margaret E. Cook, MD in 2017

Hypertension 75
High Cholesterol 65
Stroke 9
Ischemic Heart Disease 61
Depression 33
Chronic Kidney Disease 75
Asthma 12
Osteoperosis 13
Atrial Fibrilation 19
Heart Failure 43
Chronic Obstructive Pulmonary Disease 20
Diabetes 56
Dementia 22
Cancer 8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Margaret E. Cook, MD treated as a nephrologist in Austin, TX during 2018 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Margaret E. Cook, MD for Medicare patients.

blood draw 377
diabetes management 39
dialysis 285
doctor visit 421
hemofiltration 62
hospital care 921
inpatient care 921
lab tests 2196
preventive care 128
thyroid function tests 30
vaccines 14

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret E. Cook, MD.

Gender
Male 218
Female 248
Ethnicity
Non-Hispanic White 279
Black 76
Hispanic 75
Asian 0
Other 0
Native American 0
Age
From 65 to 74 154
From 75 to 84 130
85 and over 62
Less than 65 120

Conditions of Medicare patients treated by Dr. Margaret E. Cook, MD in 2018

Hypertension 75
High Cholesterol 68
Stroke 8
Ischemic Heart Disease 60
Depression 30
Chronic Kidney Disease 75
Asthma 15
Osteoperosis 11
Atrial Fibrilation 20
Heart Failure 45
Chronic Obstructive Pulmonary Disease 22
Diabetes 59
Dementia 23
Cancer 10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Margaret E. Cook, MD treated as a nephrologist in Austin, TX during 2019 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Margaret E. Cook, MD for Medicare patients.

blood draw 367
diabetes management 25
dialysis 235
doctor visit 412
hospital care 759
inpatient care 759
lab tests 1948
preventive care 73
thyroid function tests 22

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret E. Cook, MD.

Gender
Male 209
Female 232
Ethnicity
Non-Hispanic White 258
Black 80
Hispanic 80
Asian 0
Other 0
Native American 0
Age
From 65 to 74 120
From 75 to 84 129
85 and over 62
Less than 65 130

Conditions of Medicare patients treated by Dr. Margaret E. Cook, MD in 2019

Hypertension 75
High Cholesterol 73
Stroke 9
Ischemic Heart Disease 60
Depression 33
Chronic Kidney Disease 75
Asthma 11
Osteoperosis 11
Atrial Fibrilation 24
Heart Failure 48
Chronic Obstructive Pulmonary Disease 21
Diabetes 60
Dementia 21
Cancer 10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Margaret E. Cook, MD treated as a nephrologist in Austin, TX during 2020 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Margaret E. Cook, MD for Medicare patients.

apheresis 19
blood draw 292
diabetes management 15
dialysis 200
doctor visit 299
hospital care 748
inpatient care 748
lab tests 1482
preventive care 46

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret E. Cook, MD.

Gender
Male 203
Female 207
Ethnicity
Non-Hispanic White 244
Black 63
Hispanic 83
Asian 0
Other 0
Native American 0
Age
From 65 to 74 131
From 75 to 84 115
85 and over 54
Less than 65 110

Conditions of Medicare patients treated by Dr. Margaret E. Cook, MD in 2020

Hypertension 75
High Cholesterol 74
Stroke 10
Ischemic Heart Disease 56
Depression 29
Chronic Kidney Disease 75
Asthma 10
Osteoperosis 11
Atrial Fibrilation 21
Heart Failure 46
Chronic Obstructive Pulmonary Disease 19
Diabetes 58
Dementia 21
Cancer 13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Margaret E. Cook, MD treated as a nephrologist in Austin, TX during 2021 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Margaret E. Cook, MD for Medicare patients.

blood draw 300
diabetes management 19
dialysis 175
doctor visit 433
hospital care 590
inpatient care 590
lab tests 1544
preventive care 57

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret E. Cook, MD.

Gender
Male 195
Female 225
Ethnicity
Non-Hispanic White 265
Black 60
Hispanic 70
Asian 0
Other 0
Native American 0
Age
From 65 to 74 128
From 75 to 84 145
85 and over 60
Less than 65 87

Conditions of Medicare patients treated by Dr. Margaret E. Cook, MD in 2021

Hypertension 75
High Cholesterol 72
Stroke 8
Ischemic Heart Disease 52
Depression 30
Chronic Kidney Disease 75
Asthma 10
Osteoperosis 13
Atrial Fibrilation 20
Heart Failure 42
Chronic Obstructive Pulmonary Disease 15
Diabetes 57
Dementia 23
Cancer 14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Margaret E. Cook, MD treated as a nephrologist in Austin, TX during 2022 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Margaret E. Cook, MD for Medicare patients.

blood draw 280
diabetes management 16
dialysis 126
doctor visit 357
hospital care 484
inpatient care 484
lab tests 1158
preventive care 43

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret E. Cook, MD.

Gender
Male 162
Female 168
Ethnicity
Non-Hispanic White 213
Black 51
Hispanic 47
Asian 0
Other 0
Native American 0
Age
From 65 to 74 106
From 75 to 84 120
85 and over 43
Less than 65 61

Conditions of Medicare patients treated by Dr. Margaret E. Cook, MD in 2022

Hypertension 75
High Cholesterol 75
Stroke 15
Ischemic Heart Disease 41
Depression 26
Chronic Kidney Disease 75
Asthma 15
Osteoperosis 18
Atrial Fibrilation 30
Heart Failure 38
Chronic Obstructive Pulmonary Disease 18
Diabetes 55
Dementia 12
Cancer 21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Margaret E. Cook, MD for Medicare patients.

The highest averages for the top procedures that Dr. Margaret E. Cook, MD treated as a nephrologist in Austin, TX were lab tests, hospital care, inpatient care and blood draw.

apheresis 19
blood draw 440
diabetes management 22
dialysis 252
doctor visit 533
hemofiltration 41
hospital care 684
inpatient care 684
lab tests 2465
preventive care 104
thyroid function tests 30
vaccines 27

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Margaret E. Cook, MD.

Gender
Male 235
Female 267
Ethnicity
Black / African American 81
Asian / Pacific Islander 4
Non-Hispanic White 308
Hispanic 83
Native American / Alaskan Native 0
Other 1
Age
75 to 84 144
85 and over 63
Less than 65 132
65 to 74 163

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

The highest averages of the most common conditions of Medicare patients that Dr. Margaret E. Cook, MD treated were chronic kidney disease, hypertension, high cholesterol and diabetes.

Hypertension 68
High Cholesterol 63
Stroke 8
Ischemic Heart Disease 48
Depression 27
Chronic Kidney Disease 68
Asthma 12
Osteoporosis 10
Heart Failure 40
Chronic Obstructive Pulmonary Disease 18
Diabetes 52
Atrial Fibrillation 18
Cancer 10
Dementia 17

Education & Training

Dr. Margaret E. Cook, MD graduated from University of Oklahoma College of Medicine. She completed residency at Tulane University Affiliated Hospitals. She is certified by the American Board of Internal Medicine - Internal Medicine (Archived) The American Board of Internal Medicine - Internal Medicine The American Board of Internal Medicine - Nephrology and has a state license in Texas.

Medical School: University of Oklahoma College of Medicine

Residency: Tulane University Affiliated Hospitals

Board Certification: American Board of Internal Medicine - Internal Medicine (Archived) The American Board of Internal Medicine - Internal Medicine The American Board of Internal Medicine - Nephrology

Licensed In: Texas

Affiliations & Hospitals

Dr. Margaret E. Cook, MD is associated with these hospitals and organizations:

St. David's HealthCare
Ascension
Ascension Seton Williamson
St. David's Round Rock Medical Center St. David's Medical Center St. David's North Austin Medical Center
THE AUSTIN DIAGNOSTIC CLINIC, PLLC

Ratings & Reviews

Dr. Margaret E. Cook, MD does not have any reviews yet, be the first to leave a review of Dr. Margaret E. Cook, MD here: Leave a Review

(No ratings)

Leave a Review

General Payments

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

Payments by Company
AstraZeneca Pharmaceuticals LP $504 LOKELMA
$288 		FARXIGA
$215
Otsuka America Pharmaceutical, Inc. $451 JYNARQUE
$256 		SAMSCA
$184
$11
Amgen Inc. $415 Sensipar
$178 		Parsabiv
$170 		Tavneos
$67
Fresenius USA Marketing, Inc. $414 Velphoro
$297 		KORSUVA
$60 		Dialyzers
$28 		Phoslyra
$13
$16
Bayer HealthCare Pharmaceuticals Inc. $408 Kerendia
$408
Other $2,786 VELTASSA
$552 		Auryxia
$251 		ACTHAR
$217 		Colcrys
$198 		LUPKYNIS
$152 		Other
$1,414
Types of Payments
Food and Beverage $4,922
Education $56

Research Payments

Dr. Margaret E. Cook, MD has received 1316 research payments totaling $1,452,005.

Biography

Dr. Margaret Cook's area of specialization is adult nephrology. She has indicated that her clinical interests include hypertension (high blood pressure), chronic kidney disease (CKD), and kidney transplant. She is professionally affiliated with Ascension and St. David's HealthCare. Before performing her residency at a hospital affiliated with Tulane University, Dr. Cook attended the University of Oklahoma College of Medicine for medical school.

Other Providers in Austin, TX