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Dr. Marlyn Jean Mayo, MD

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Specializes in: Adult Hepatology and Gastroenterology (Digestive System)

Baylor College of Medicine

Professional interests include: cancer screening, gastrointestinal problems (digestive disorders), liver disease

5939 Harry Hines Boulevard 7th Floor, Suite 700, Professional Office Building 2
Dallas, TX 75390

(214) 645-1919

Dr. Marlyn Jean Mayo, MD is a hepatologist in Dallas, TX specializing in adult hepatology and gastroenterology (digestive system). She graduated from Baylor College of Medicine. Dr. Marlyn Jean Mayo, MD is affiliated with UT Southwestern Medical Center.

Office Locations

UT Southwestern Medical Center

5939 Harry Hines Boulevard 7th Floor, Suite 700, Professional Office Building 2
Dallas, TX 75390

(214) 645-1919

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Some issues Dr. Marlyn Jean Mayo, MD can help you with:

Gastrointestinal Problems (Digestive Disorders)

The gastrointestinal system, or GI tract, is the name given to a collection of organs that work together to digest food. These organs fit together in a long tube, running from the mouth to the anus, and include the esophagus, stomach, and intestines, among others. With so many parts working together, complicated by today's busy lifestyles and diets, digestive problems are common. As many as 1 in 3 Americans have a digestive or GI disorder. There are a huge variety of digestive problems, but the most common are IBS, constipation, GERD, hemorrhoids, and ulcers.

IBS, or irritable bowel syndrome, happens when the muscles surrounding the colon contract too easily or frequently. The result is abdominal pain, cramps, diarrhea or constipation, gas and bloating. IBS attacks can often be brought on by specific triggers, so a key part of treatment is learning which foods trigger IBS attacks and avoiding them. Treatment also includes exercise, avoiding stress, and medications if needed.

Constipation, or large, hard, or infrequent stools, happens to everyone at some point. It can be caused by a disruption in routine or food, or by eating a diet without many fresh fruits and vegetables. Although it is uncomfortable, constipation is common and usually not serious, but it can sometimes become chronic. Adding fiber to the diet, exercising, and taking medications may help.

GERD, or gastroesophageal reflux disease, is a severe form of chronic heartburn where stomach acid spills back up into the esophagus. Left untreated, the acid may even eat away at the esophagus and cause serious damage. Treatment includes changing the diet to avoid trigger foods, losing weight if needed, medications, or even surgery.

Hemorrhoids are blood vessels around the rectum that become irritated, swollen or torn while straining during a bowel movement. They are most often caused by constipation, but can also be caused by pregnancy, diarrhea, or simply a genetic predisposition towards hemorrhoids. Treatment involves first treating any constipation issues, then keeping the area clean and soothed until it has healed. If these measures are ineffective, surgery is sometimes used.

Peptic ulcers are sores or spots of inflammation in the lining of the stomach or close to the stomach in the small intestine. Usually this area is coated with a protective lining that shields the tissue from the strong stomach acid, but a break in the lining can let acid in, causing the sores. It used to be thought that stress caused ulcers, but now it is known that is not the case. Most often, they are caused by an infection by H. pylori bacteria, but ulcers can also be caused by alcohol abuse or overuse of aspirin, ibuprofen, naproxen, or other NSAIDS. The symptoms of an ulcer are pain, hunger, nausea, and fatigue.

Gastrointestinal problems, perhaps more than any other area, are markedly affected by lifestyle. Many disorders can be prevented or treated at least in part by eating a healthy diet high in fiber, exercising regularly, drinking enough water, and limiting alcohol intake. Still, the frequency of digestive disorders means that even the healthiest person can be affected by them. Anyone who notices blood in their stool, experiences abdominal pain, unexplained weight loss, or any significant change in bowel movements should see a doctor.

In The News

“"Patients with PBC are in need of new therapies that provide greater safety, efficacy and relief from symptoms which can significantly diminish the quality of their lives," said Dr. Marlyn J. Mayo,...”—"CymaBay Completes Enrollment for the RESPONSE Global Phase 3 Study Evaluating Seladelpar for Patients with Primary Biliary Cholangitis", Associated Press News, August 2022

“Unfortunately, debilitating itch is prevalent but underestimated, and current options for medical treatment are not fully utilized," said Marlyn Mayo, M.D., Professor of Internal Medicine,...”—"Real-World Data Finds High Prevalence of Pruritis (Itching) and Fatigue, Low Levels of Treatment in Primary Biliary Cholangitis Population", Associated Press News, July 2022

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX during 2012 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

diagnostic procedures	60
doctor visit	115
gastrointestinal procedures	78
hospital care	250
inpatient care	250
minimally invasive procedures	78
removal of lesion (e.g. growth)	60

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX during 2013 were hospital care, inpatient care, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

diagnostic procedures	13
doctor visit	91
gastrointestinal procedures	13
hospital care	165
inpatient care	165
minimally invasive procedures	13
removal of lesion (e.g. growth)	13

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Marlyn Jean Mayo, MD.

**Gender**
Male	82
Female	85

**Ethnicity**
Non-Hispanic White	91
Black	41
Hispanic	25
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	73
From 75 to 84	0
85 and over	0
Less than 65	74

Conditions of Medicare patients treated by Dr. Marlyn Jean Mayo, MD in 2013

Hypertension	74
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	36
Depression	32
Chronic Kidney Disease	40
Asthma	8
Osteoperosis	10
Atrial Fibrilation	7
Heart Failure	31
Chronic Obstructive Pulmonary Disease	15
Diabetes	40
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX during 2014 were hospital care, inpatient care, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

diagnostic procedures	19
doctor visit	78
gastrointestinal procedures	19
hospital care	75
inpatient care	75
minimally invasive procedures	19
removal of lesion (e.g. growth)	19

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Marlyn Jean Mayo, MD.

**Gender**
Male	71
Female	97

**Ethnicity**
Non-Hispanic White	93
Black	43
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	93
From 75 to 84	0
85 and over	0
Less than 65	55

Conditions of Medicare patients treated by Dr. Marlyn Jean Mayo, MD in 2014

Hypertension	68
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	30
Depression	32
Chronic Kidney Disease	35
Asthma	13
Osteoperosis	18
Atrial Fibrilation	12
Heart Failure	27
Chronic Obstructive Pulmonary Disease	17
Diabetes	31
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX during 2015 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

diagnostic procedures	69
doctor visit	76
gastrointestinal procedures	69
hospital care	51
inpatient care	51
minimally invasive procedures	69
removal of lesion (e.g. growth)	69

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Marlyn Jean Mayo, MD.

**Gender**
Male	150
Female	214

**Ethnicity**
Non-Hispanic White	188
Black	90
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	160
From 75 to 84	0
85 and over	0
Less than 65	122

Conditions of Medicare patients treated by Dr. Marlyn Jean Mayo, MD in 2015

Hypertension	71
High Cholesterol	49
Stroke	8
Ischemic Heart Disease	37
Depression	30
Chronic Kidney Disease	36
Asthma	15
Osteoperosis	10
Atrial Fibrilation	7
Heart Failure	24
Chronic Obstructive Pulmonary Disease	18
Diabetes	34
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

doctor visit	80
hospital care	13
inpatient care	13

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Marlyn Jean Mayo, MD.

**Gender**
Male	46
Female	76

**Ethnicity**
Non-Hispanic White	72
Black	0
Hispanic	24
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	68
From 75 to 84	0
85 and over	0
Less than 65	35

Conditions of Medicare patients treated by Dr. Marlyn Jean Mayo, MD in 2016

Hypertension	70
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	29
Depression	28
Chronic Kidney Disease	39
Asthma	24
Osteoperosis	13
Atrial Fibrilation	0
Heart Failure	20
Chronic Obstructive Pulmonary Disease	18
Diabetes	39
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX during 2017 were hospital care, inpatient care, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

diagnostic procedures	17
doctor visit	112
gastrointestinal procedures	17
hospital care	63
inpatient care	63
minimally invasive procedures	17
removal of lesion (e.g. growth)	17

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Marlyn Jean Mayo, MD.

**Gender**
Male	73
Female	138

**Ethnicity**
Non-Hispanic White	117
Black	46
Hispanic	35
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	0
85 and over	0
Less than 65	52

Conditions of Medicare patients treated by Dr. Marlyn Jean Mayo, MD in 2017

Hypertension	68
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	29
Depression	33
Chronic Kidney Disease	40
Asthma	8
Osteoperosis	18
Atrial Fibrilation	7
Heart Failure	22
Chronic Obstructive Pulmonary Disease	15
Diabetes	41
Dementia	12
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX during 2018 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

diagnostic procedures	79
doctor visit	146
gastrointestinal procedures	79
hospital care	25
inpatient care	25
minimally invasive procedures	79
removal of lesion (e.g. growth)	79

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Marlyn Jean Mayo, MD.

**Gender**
Male	104
Female	153

**Ethnicity**
Non-Hispanic White	116
Black	0
Hispanic	68
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	141
From 75 to 84	0
85 and over	0
Less than 65	76

Conditions of Medicare patients treated by Dr. Marlyn Jean Mayo, MD in 2018

Hypertension	74
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	26
Depression	28
Chronic Kidney Disease	40
Asthma	7
Osteoperosis	17
Atrial Fibrilation	5
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	35
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX during 2019 were hospital care, inpatient care, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

diagnostic procedures	14
doctor visit	129
gastrointestinal procedures	14
hospital care	28
inpatient care	28
minimally invasive procedures	14
removal of lesion (e.g. growth)	14

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Marlyn Jean Mayo, MD.

**Gender**
Male	77
Female	124

**Ethnicity**
Non-Hispanic White	103
Black	37
Hispanic	49
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	0
85 and over	0
Less than 65	47

Conditions of Medicare patients treated by Dr. Marlyn Jean Mayo, MD in 2019

Hypertension	75
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	28
Depression	37
Chronic Kidney Disease	46
Asthma	11
Osteoperosis	19
Atrial Fibrilation	5
Heart Failure	17
Chronic Obstructive Pulmonary Disease	14
Diabetes	39
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX during 2020 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

diagnostic procedures	13
doctor visit	120
gastrointestinal procedures	13
minimally invasive procedures	13
removal of lesion (e.g. growth)	13

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Marlyn Jean Mayo, MD.

**Gender**
Male	57
Female	108

**Ethnicity**
Non-Hispanic White	84
Black	0
Hispanic	42
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	0
85 and over	0
Less than 65	46

Conditions of Medicare patients treated by Dr. Marlyn Jean Mayo, MD in 2020

Hypertension	73
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	32
Depression	36
Chronic Kidney Disease	48
Asthma	7
Osteoperosis	17
Atrial Fibrilation	7
Heart Failure	24
Chronic Obstructive Pulmonary Disease	15
Diabetes	42
Dementia	10
Cancer	7

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX during 2021 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

diagnostic procedures	55
doctor visit	126
gastrointestinal procedures	55
minimally invasive procedures	55
removal of lesion (e.g. growth)	55

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Marlyn Jean Mayo, MD.

**Gender**
Male	78
Female	121

**Ethnicity**
Non-Hispanic White	120
Black	24
Hispanic	35
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	116
From 75 to 84	46
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marlyn Jean Mayo, MD in 2021

Hypertension	70
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	28
Depression	21
Chronic Kidney Disease	33
Asthma	7
Osteoperosis	17
Atrial Fibrilation	7
Heart Failure	16
Chronic Obstructive Pulmonary Disease	9
Diabetes	36
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX during 2022 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

diagnostic procedures	15
doctor visit	100
gastrointestinal procedures	15
minimally invasive procedures	15
removal of lesion (e.g. growth)	15

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Marlyn Jean Mayo, MD.

**Gender**
Male	42
Female	103

**Ethnicity**
Non-Hispanic White	83
Black	0
Hispanic	29
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	78
From 75 to 84	38
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marlyn Jean Mayo, MD in 2022

Hypertension	75
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	23
Depression	23
Chronic Kidney Disease	23
Asthma	13
Osteoperosis	27
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	28
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX during 2023 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

diagnostic procedures	38
doctor visit	58
gastrointestinal procedures	38
minimally invasive procedures	38
removal of lesion (e.g. growth)	38

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Marlyn Jean Mayo, MD.

**Gender**
Male	42
Female	93

**Ethnicity**
Non-Hispanic White	84
Black	0
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	60
From 75 to 84	47
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marlyn Jean Mayo, MD in 2023

Hypertension	70
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	24
Depression	25
Chronic Kidney Disease	28
Asthma	13
Osteoperosis	26
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	35
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Marlyn Jean Mayo, MD for Medicare patients.

The highest averages for the top procedures that Dr. Marlyn Jean Mayo, MD treated as a hepatologist in Dallas, TX were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

diagnostic procedures	35
doctor visit	102
gastrointestinal procedures	37
hospital care	83
inpatient care	83
minimally invasive procedures	37
removal of lesion (e.g. growth)	35

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Marlyn Jean Mayo, MD.

**Gender**
Male	68
Female	109

**Ethnicity**
Black / African American	23
Asian / Pacific Islander	0
Non-Hispanic White	95
Hispanic	27
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	10
85 and over	0
Less than 65	42
65 to 74	92

Average of Total of Conditions of Medicare patients treated by Dr. Marlyn Jean Mayo, MD From 2012 - 2023

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

Hypertension	65
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	26
Depression	27
Chronic Kidney Disease	34
Asthma	10
Osteoporosis	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	33
Atrial Fibrillation	6
Cancer	10
Dementia	6

Education & Training

Dr. Marlyn Jean Mayo, MD graduated from Baylor College of Medicine. She completed residency at University of California, Irvine Affiliated Hospitals. She has a state license in Texas.

Medical School: Baylor College of Medicine

Residency: University of California, Irvine Affiliated Hospitals (1993)

Licensed In: Texas

Affiliations & Hospitals

Dr. Marlyn Jean Mayo, MD is associated with these hospitals and organizations:

UT Southwestern Medical Center

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General Payments

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

**Payments by Company**
GlaxoSmithKline, LLC.	$39,175 $39,175
Ironwood Pharmaceuticals, Inc	$11,050 $11,050
Mallinckrodt Hospital Products Inc.	$8,880 TERLIVAZ $147	$8,733
Ipsen Innovation	$3,735 $3,735
Intercept Pharmaceuticals, Inc.	$3,579 Ocaliva $3,579
Other	$11,207 Reltone 400 mg $3,000	Xifaxan 550 mg $522	$7,685

**Types of Payments**
Consulting Fee	$52,250
Travel and Lodging	$12,056
Compensation for serving as faculty or as a speaker for a medical education program	$6,215
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$3,039
Honoraria	$3,000
Other	$1,065

Research Payments

Dr. Marlyn Jean Mayo, MD has received 215 research payments totaling $700,292.

Biography

Dr. Marlyn Mayo specializes in general practice, gastroenterology (digestive system), and adult hepatology and practices in Dallas, TX. Clinical interests for Dr. Mayo include gastrointestinal problems (digestive disorders), cancer screening, and liver disease. She studied medicine at Baylor College of Medicine. She trained at a hospital affiliated with the University of California, Irvine for residency. Dr. Mayo has received the following distinctions: D Magazine Best Doctors, Hepatology and Peer-nominated top 5 Hepatologists in the Dallas-Forth Worth area. She is professionally affiliated with UT Southwestern Medical Center. She has an open panel in Dallas, TX according to UT Southwestern Medical Center.