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Dr. Mark Udden, MD

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Specializes in: Adult Hematology

University of Texas Southwestern Medical School

Professional interests include: thrombosis (blood clots), platelet disorders, thalassemia, and more.

1919 Old Spanish Trail 6th Floor
Houston, TX 77030

(832) 957-6500

Dr. Mark Udden, MD is an adult hematologist in Houston, TX specializing in adult hematology. He graduated from University of Texas Southwestern Medical School. Dr. Mark Udden, MD is affiliated with Baylor College of Medicine, Texas Children's and St. Luke's Health.

Office Locations

Address:

1504 Taub Loop
Houston, TX 77030

Address:

1919 Old Spanish Trail
Houston, TX 77054

Address:

1919 Old Spanish Trail 6th Floor
Houston, TX 77030

Address:

7200 Cambridge Street 7th Floor, Suite 7 B-1
Houston, TX 77030

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

Anemia

Anemia is the most common blood disorder. It occurs when the body does not have enough red blood cells to carry oxygen to the tissues. Blood loss, insufficient red blood cell production, and red blood cell destruction are the three main causes of anemia. These issues may arise from such conditions as iron deficiency, heavy periods, ulcers, kidney disease, as well as some forms of cancer.

An individual with anemia will have the following symptoms: shortness of breath, weakness, dizziness, cold hands or feet, paleness, and irritability. Anemia is diagnosed when blood tests show low counts for hemoglobin, which is the protein responsible for carrying oxygen to different tissues throughout the body.

Treatments for anemia are dependent on the kind of anemia an individual has. For example, iron supplementation may correct iron deficiency anemia. For anemia caused by chronic kidney failure, chemotherapy treatments, and HIV/AIDS, a group of medications called erythropoiesis-stimulating agents may be prescribed.

Platelet Disorders

Platelet disorders are conditions caused by abnormally low or high levels of platelets in the blood, or by platelets that do not function correctly. Platelets are small blood cells that help stop bleeding by clumping together and forming blood clots, allowing the body to heal.

Thrombocytopenia is a disorder where people have too few platelets. With too few platelets in the bloodstream, the blood is unable to properly clot. People with thrombocytopenia may experience prolonged external and internal bleeding. Large purple bruises (ecchymoses) and small red skin spots (petechiae) in the skin and mouth are common in those with thrombocytopenia. Other symptoms of the disorder include bleeding gums, blood in bodily fluids, and fatigue. Thrombocytopenia most often arises from a different condition or treatment, such as alcoholism, autoimmune disease, cancer treatments, viruses (such as Hepatitis C and HIV), bone marrow diseases (such as leukemia and aplastic anemia), enlarged spleen, and exposure to toxic chemicals. In rare cases, thrombocytopenia is inherited.

Thrombocytosis is a disorder where people have too high of a concentration of platelets. Excess platelets can cause blood to clot in the veins. Blood clots in the veins are particularly dangerous, as they can obstruct blood flow and cause heart attacks and strokes. Thrombocytosis has two forms:

Thrombocythemia, also referred to as primary or essential thrombosis (ET), develops from irregular bone marrow cells that produce too many platelets. The cause of these bone marrow cells is unknown.
Reactive thrombosis (RT), also referred to as secondary thrombosis, arises from a different condition such as cancer, anemia, spleen removal, or infection. It is most common in older adults, but can occur in people of all ages. Symptoms of reactive thrombosis may gradually develop over time and typically include bruising, gum bleeding, and blood clotting.
Dysfunctional platelets are unable to perform the clotting function in the blood. People with dysfunctional platelets may have normal or low platelet counts. Causes of dysfunctional platelets include autoimmune disorders, hemolysis, infections, blood and bone marrow problems, and liver or kidney conditions.

If a doctor suspects a patient has a platelet disorder, a complete blood count (CBC) or platelet count test helps determine the concentration of platelets in a person's blood at a given time. Platelet disorders can be diagnosed by hematologists using advanced tests on platelet samples. Flow cytometry tests detect abnormalities by evaluating the characteristics of a platelet sample using targeted lasers and lights. Tests measuring prothrombin time (PT), or how long it takes for blood to clot, can also detect dysfunctional platelets. If platelets do not coagulate within a certain time frame, the patient most likely has dysfunctional platelets.

Treatments for low platelet counts include steroids like Prednisone, that can assist with platelet production. If a patient's low platelet count is caused by spleen problems, spleen removal (splenectomy) may be recommended. To treat the prolonged bleeding caused by thrombocytopenia, doctors frequently prescribe Dempressin, a hormone that promotes blood clotting. Antifibrinolytic medications such as tranexamic acid may also aid in the promotion of clotting and the prevention of bleeding. For patients with severe platelet disorders (either low platelet count and dysfunctional platelets), blood transfusions may be prescribed. Platelet blood transfusions deliver donated platelets to patients intravenously, replenishing the volume of functioning platelets.

Patients with high platelet counts are frequently prescribed a daily dose of over-the-counter medication aspirin. Platelet-lowering medications, such as hydroxyurea and Intron A, may reduce the likelihood of blood clot formation. Excess platelets may also be removed from the blood by a procedure called plateletpheresis or platelet reduction apheresis, where blood is drawn, circulated into a centrifuge that separates the blood components, and returned to the body with some platelets extracted. Plateletpheresis is a rare procedure reserved for patients who have severe clotting.

Patients can also modify their lifestyle to better manage their disorder and minimize complications. Patients with low blood counts should avoid blood-thinning medications, alcohol, and activities that could lead to injury. Patients with high blood count are advised to drink plenty of water, exercise regularly, and to avoid smoking. Many people with platelet disorders can live healthy and fulfilling lives with proper treatment and precautions.

In The News

“"Some of us have a tendency to distance ourselves from our patients, particularly when we know that they are eventually not going to do well," said Dr. Mark Udden, chief of benign hematology for...”—"Baylor doctor dedicates life to helping indigents", Houston Chronicle, July 2013

doctor visit	323
hospital care	45
inpatient care	45

**Gender**
Male	98
Female	102

**Ethnicity**
Non-Hispanic White	81
Black	80
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	80
From 75 to 84	31
85 and over	15
Less than 65	74

Hypertension	64
High Cholesterol	40
Stroke	0
Ischemic Heart Disease	28
Depression	25
Chronic Kidney Disease	31
Asthma	13
Osteoperosis	9
Atrial Fibrilation	7
Heart Failure	20
Chronic Obstructive Pulmonary Disease	15
Diabetes	33
Dementia	8
Cancer	8

doctor visit	356
hospital care	196
inpatient care	196

**Gender**
Male	106
Female	133

**Ethnicity**
Non-Hispanic White	97
Black	90
Hispanic	39
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	100
From 75 to 84	38
85 and over	23
Less than 65	78

Hypertension	71
High Cholesterol	44
Stroke	5
Ischemic Heart Disease	36
Depression	29
Chronic Kidney Disease	34
Asthma	7
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	30
Chronic Obstructive Pulmonary Disease	18
Diabetes	40
Dementia	9
Cancer	10

doctor visit	416
hospital care	275
inpatient care	275

**Gender**
Male	258
Female	282

**Ethnicity**
Non-Hispanic White	204
Black	194
Hispanic	106
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	194
From 75 to 84	98
85 and over	52
Less than 65	196

Hypertension	73
High Cholesterol	49
Stroke	6
Ischemic Heart Disease	41
Depression	26
Chronic Kidney Disease	43
Asthma	12
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	36
Chronic Obstructive Pulmonary Disease	19
Diabetes	41
Dementia	7
Cancer	10

doctor visit	415
hospital care	269
inpatient care	269

**Gender**
Male	134
Female	146

**Ethnicity**
Non-Hispanic White	100
Black	108
Hispanic	61
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	47
85 and over	22
Less than 65	91

Hypertension	75
High Cholesterol	50
Stroke	7
Ischemic Heart Disease	39
Depression	23
Chronic Kidney Disease	49
Asthma	21
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	33
Chronic Obstructive Pulmonary Disease	19
Diabetes	43
Dementia	14
Cancer	14

biological response modifier (BRM) therapy	17
chemotherapy	17
doctor visit	386
hospital care	243
inpatient care	243
minimally invasive procedures	17

**Gender**
Male	144
Female	164

**Ethnicity**
Non-Hispanic White	137
Black	108
Hispanic	43
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	128
From 75 to 84	54
85 and over	24
Less than 65	102

Hypertension	75
High Cholesterol	48
Stroke	10
Ischemic Heart Disease	43
Depression	27
Chronic Kidney Disease	55
Asthma	11
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	35
Chronic Obstructive Pulmonary Disease	19
Diabetes	39
Dementia	11
Cancer	14

biological response modifier (BRM) therapy	28
chemotherapy	28
doctor visit	366
minimally invasive procedures	28

**Gender**
Male	117
Female	128

**Ethnicity**
Non-Hispanic White	93
Black	94
Hispanic	40
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	113
From 75 to 84	44
85 and over	13
Less than 65	75

Hypertension	69
High Cholesterol	46
Stroke	7
Ischemic Heart Disease	35
Depression	22
Chronic Kidney Disease	44
Asthma	9
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	25
Chronic Obstructive Pulmonary Disease	11
Diabetes	35
Dementia	8
Cancer	18

biological response modifier (BRM) therapy	28
chemotherapy	28
doctor visit	326
minimally invasive procedures	28

**Gender**
Male	121
Female	136

**Ethnicity**
Non-Hispanic White	111
Black	87
Hispanic	42
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	119
From 75 to 84	49
85 and over	14
Less than 65	75

Hypertension	72
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	35
Depression	23
Chronic Kidney Disease	47
Asthma	12
Osteoperosis	15
Atrial Fibrilation	7
Heart Failure	23
Chronic Obstructive Pulmonary Disease	16
Diabetes	39
Dementia	7
Cancer	19

doctor visit	275

**Gender**
Male	97
Female	98

**Ethnicity**
Non-Hispanic White	75
Black	67
Hispanic	40
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	94
From 75 to 84	0
85 and over	0
Less than 65	53

Hypertension	67
High Cholesterol	53
Stroke	7
Ischemic Heart Disease	29
Depression	21
Chronic Kidney Disease	44
Asthma	7
Osteoperosis	12
Atrial Fibrilation	6
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	40
Dementia	10
Cancer	10

doctor visit	517

Average Medicare Procedure Volume From 2013 - 2021

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

The highest averages for the top procedures that Dr. Mark Udden, MD treated as an adult hematologist in Houston, TX were hospital care, inpatient care, chemotherapy and biological response modifier (BRM) therapy.

biological response modifier (BRM) therapy	24
chemotherapy	24
doctor visit	376
hospital care	205
inpatient care	205
minimally invasive procedures	24

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Mark Udden, MD.

**Gender**
Male	107
Female	118

**Ethnicity**
Black / African American	82
Asian / Pacific Islander	0
Non-Hispanic White	89
Native American / Alaskan Native	0
Hispanic	37
Other	0

**Age**
75 to 84	36
85 and over	16
Less than 65	74
65 to 74	94

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

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

Hypertension	56
High Cholesterol	38
Stroke	4
Ischemic Heart Disease	28
Depression	19
Chronic Kidney Disease	34
Asthma	9
Osteoporosis	8
Heart Failure	21
Chronic Obstructive Pulmonary Disease	12
Diabetes	31
Atrial Fibrillation	6
Cancer	10
Dementia	7

Education & Training

Dr. Mark Udden, MD graduated from University of Texas Southwestern Medical School. He completed residency at Baylor College of Medicine Affiliated Hospitals. He has a state license in Texas.

Medical School: University of Texas Southwestern Medical School

Residency: Baylor College of Medicine Affiliated Hospitals

Licensed In: Texas

Affiliations & Hospitals

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

Baylor College of Medicine

Texas Children's

St. Luke's Health

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General Payments

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

**Payments by Company**
Pfizer Inc.	$326 BOSULIF $109	ELIQUIS $81	MYLOTARG $40	BESPONSA $38	DAURISMO $28	Other $30
Celgene Corporation	$302 Pomalyst $145	Revlimid $89	Istodax $43	Abraxane $26
Novartis Pharmaceuticals Corporation	$267 TASIGNA $196	NON BRAND $30	AFINITOR $24	Exjade $17
Alexion Pharmaceuticals, Inc.	$262 SOLIRIS $262
Janssen Biotech, Inc.	$216 DARZALEX $186	XARELTO $18	IMBRUVICA $12
Other	$1,645 IMBRUVICA $243	EMPLICITI $95	Gilotrif $93	SPRYCEL $92	JAKAFI $92	Other $1,030

**Types of Payments**
Food and Beverage	$2,861
Education	$155

Biography

Dr. Mark Udden is an oncology (cancer care) and adult hematology specialist in Houston, TX. He graduated from the University of Texas Southwestern Medical School and then he performed his residency at a hospital affiliated with Baylor College of Medicine. He is affiliated with Texas Children's and Baylor College of Medicine.

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Dr. Mark Udden, MD

Office Locations

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

In The News

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Udden, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Udden, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Udden, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Udden, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Udden, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Udden, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Udden, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Udden, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Average Medicare Procedure Volume From 2013 - 2021

Average Medicare Patient Data From 2013 - 2021

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

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

Other Providers in Houston, TX