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Dr. Mark Myers Udden, MD

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(Dr. Mark Udden, MD)

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Specializes in: Adult Hematology and Oncology (Cancer Care)

University of Texas Southwestern Medical School

Professional interests include: thrombosis (blood clots), platelet disorders, sickle cell disease, and more.

1919 Old Spanish Trail
Houston, TX 77054

(832) 957-6500

Dr. Mark Myers Udden, MD is an adult hematologist in Houston, TX specializing in adult hematology and oncology (cancer care). He graduated from University of Texas Southwestern Medical School. Dr. Mark Myers Udden, MD is affiliated with Baylor College of Medicine, Texas Children's and TX Health Network.

Office Locations

1504 Taub Loop
Houston, TX 77030

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Baylor College of Medicine

1919 Old Spanish Trail
Houston, TX 77054

(832) 957-6500

(713) 610-4599

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1919 Old Spanish Trail 6th Floor
Houston, TX 77030

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6620 Main Street
Houston, TX 77030

(713) 798-2500

(713) 798-2505

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Some issues Dr. Mark Myers 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.

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark Myers Udden, MD treated as an adult hematologist in Houston, TX during 2013 were hospital care and inpatient care.

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

doctor visit	327
hospital care	46
inpatient care	46

2013 Medicare Patient Data

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

**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

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

The most common conditions of Medicare patients that Dr. Mark Myers Udden, MD treated during 2013 were hypertension, high cholesterol, diabetes and chronic kidney disease.

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

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark Myers Udden, MD treated as an adult hematologist in Houston, TX during 2014 were hospital care and inpatient care.

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

doctor visit	360
hospital care	197
inpatient care	197

2014 Medicare Patient Data

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

**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

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

The most common conditions of Medicare patients that Dr. Mark Myers Udden, MD treated during 2014 were hypertension, high cholesterol, diabetes and ischemic heart disease.

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

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark Myers Udden, MD treated as an adult hematologist in Houston, TX during 2015 were hospital care and inpatient care.

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

doctor visit	420
hospital care	276
inpatient care	276

2015 Medicare Patient Data

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

**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

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

The most common conditions of Medicare patients that Dr. Mark Myers Udden, MD treated during 2015 were hypertension, high cholesterol, chronic kidney disease and diabetes.

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

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark Myers Udden, MD treated as an adult hematologist in Houston, TX during 2016 were hospital care and inpatient care.

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

doctor visit	419
hospital care	270
inpatient care	270

2016 Medicare Patient Data

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

**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

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

The most common conditions of Medicare patients that Dr. Mark Myers Udden, MD treated during 2016 were hypertension, high cholesterol, chronic kidney disease and diabetes.

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

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark Myers Udden, MD treated as an adult hematologist in Houston, TX during 2017 were hospital care, inpatient care, chemotherapy and biological response modifier (BRM) therapy.

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

biological response modifier (BRM) therapy	18
chemotherapy	18
doctor visit	390
hospital care	244
inpatient care	244
minimally invasive procedures	18

2017 Medicare Patient Data

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

**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

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

The most common conditions of Medicare patients that Dr. Mark Myers Udden, MD treated during 2017 were hypertension, chronic kidney disease, high cholesterol and ischemic heart disease.

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

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark Myers Udden, MD treated as an adult hematologist in Houston, TX during 2018 were chemotherapy, biological response modifier (BRM) therapy and minimally invasive procedures.

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

biological response modifier (BRM) therapy	29
chemotherapy	29
doctor visit	370
minimally invasive procedures	29

2018 Medicare Patient Data

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

**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

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

The most common conditions of Medicare patients that Dr. Mark Myers Udden, MD treated during 2018 were hypertension, high cholesterol, chronic kidney disease and diabetes.

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

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Myers Udden, MD treated as an adult hematologist in Houston, TX during 2019 were chemotherapy, biological response modifier (BRM) therapy and minimally invasive procedures.

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

biological response modifier (BRM) therapy	29
chemotherapy	29
doctor visit	330
minimally invasive procedures	29

2019 Medicare Patient Data

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

**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

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

The most common conditions of Medicare patients that Dr. Mark Myers Udden, MD treated during 2019 were hypertension, high cholesterol, chronic kidney disease and diabetes.

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

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

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

doctor visit	279

2020 Medicare Patient Data

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

**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

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

The most common conditions of Medicare patients that Dr. Mark Myers Udden, MD treated during 2020 were hypertension, high cholesterol, chronic kidney disease and diabetes.

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

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

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

doctor visit	274

2021 Medicare Patient Data

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

**Gender**
Male	99
Female	83

**Ethnicity**
Non-Hispanic White	71
Black	63
Hispanic	34
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	85
From 75 to 84	0
85 and over	0
Less than 65	50

Conditions of Medicare patients treated by Dr. Mark Myers Udden, MD in 2021

The most common conditions of Medicare patients that Dr. Mark Myers Udden, MD treated during 2021 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	73
High Cholesterol	52
Stroke	7
Ischemic Heart Disease	31
Depression	22
Chronic Kidney Disease	47
Asthma	0
Osteoperosis	12
Atrial Fibrilation	10
Heart Failure	24
Chronic Obstructive Pulmonary Disease	10
Diabetes	32
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

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

doctor visit	247

2022 Medicare Patient Data

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

**Gender**
Male	103
Female	82

**Ethnicity**
Non-Hispanic White	73
Black	61
Hispanic	34
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	92
From 75 to 84	0
85 and over	0
Less than 65	44

Conditions of Medicare patients treated by Dr. Mark Myers Udden, MD in 2022

The most common conditions of Medicare patients that Dr. Mark Myers Udden, MD treated during 2022 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	75
High Cholesterol	62
Stroke	10
Ischemic Heart Disease	26
Depression	15
Chronic Kidney Disease	31
Asthma	11
Osteoperosis	15
Atrial Fibrilation	15
Heart Failure	24
Chronic Obstructive Pulmonary Disease	14
Diabetes	36
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

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

doctor visit	265

2023 Medicare Patient Data

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

**Gender**
Male	93
Female	87

**Ethnicity**
Non-Hispanic White	68
Black	59
Hispanic	28
Asian	11
Other	14
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	46
85 and over	11
Less than 65	34

Conditions of Medicare patients treated by Dr. Mark Myers Udden, MD in 2023

The most common conditions of Medicare patients that Dr. Mark Myers Udden, MD treated during 2023 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	75
High Cholesterol	69
Stroke	11
Ischemic Heart Disease	23
Depression	16
Chronic Kidney Disease	33
Asthma	12
Osteoperosis	12
Atrial Fibrilation	16
Heart Failure	16
Chronic Obstructive Pulmonary Disease	15
Diabetes	37
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

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

The highest averages for the top procedures that Dr. Mark Myers 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	25
chemotherapy	25
doctor visit	334
hospital care	206
inpatient care	206
minimally invasive procedures	25

Average Medicare Patient Data From 2013 - 2023

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

**Gender**
Male	124
Female	131

**Ethnicity**
Black / African American	91
Asian / Pacific Islander	1
Non-Hispanic White	100
Native American / Alaskan Native	0
Hispanic	42
Other	1

**Age**
75 to 84	37
85 and over	15
Less than 65	79
65 to 74	110

Average of Total of Conditions of Medicare patients treated by Dr. Mark Myers Udden, MD From 2013 - 2023

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

Hypertension	71
High Cholesterol	51
Stroke	6
Ischemic Heart Disease	33
Depression	22
Chronic Kidney Disease	41
Asthma	10
Osteoporosis	11
Heart Failure	25
Chronic Obstructive Pulmonary Disease	15
Diabetes	37
Atrial Fibrillation	9
Cancer	12
Dementia	7

Education & Training

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

Baylor College of Medicine

Texas Children's

TX Health Network

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 Myers Udden, MD appears to accept the following insurance providers: Coventry, Superior Health Plan, First Health, USA Managed Care Organization, HealthSmart, Community Health Choice, Provider Select, Interlink, Texas Children's Health Plan, KELSEY-SEYBOLD and Independent Medical Systems.

Insurance Accepted by Provider includes:

According to our sources, Dr. Mark Myers Udden, MD accepts the following insurance providers:

Coventry

Superior Health Plan

First Health

USA Managed Care Organization

HealthSmart

Community Health Choice

Provider Select

Interlink

Texas Children's Health Plan

KELSEY-SEYBOLD

Independent Medical Systems

Ratings & Reviews

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General Payments

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

**Payments by Company**
Alexion Pharmaceuticals, Inc.	$347 SOLIRIS $347
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
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	$240

Biography

Dr. Mark Udden works as a general practice, oncology (cancer care), and adult hematology. Dr. Udden's clinical interests include platelet disorders, sickle cell disease, and anemia. He usually is in-network for USA Managed Care Organization, Superior Health Plan, and Coventry, as well as other insurance carriers. 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. His practice in Houston, TX is open to new patients as reported by CommonSpirit Health.