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Dr. Tuanh Tonnu, MD

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Specializes in: Adult Gastroenterology

University of Maryland School of Medicine (1990)

9057 Shady Grove Court
Gaithersburg, MD 20877

(301) 721-1614

Dr. Tuanh Tonnu, MD is a gastroenterologist in Gaithersburg, MD specializing in adult gastroenterology. She graduated from University of Maryland School of Medicine in 1990 and has 36 years of experience.

Office Locations

9057 Shady Grove Court
Gaithersburg, MD 20877

(301) 721-1614

(301) 721-1624

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Noteworthy Medicare Patient Procedures Performed by Dr. Tuanh Tonnu, MD in 2023

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

Top 25%

By Volume:

EGD with biopsy

EGD with lesion removal

In 2013, Dr. Tuanh Tonnu, MD performed more EGD with biopsy, and EGD with lesion removal procedures for Medicare patients than 75% of providers in related specialties within Maryland.

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Tuanh Tonnu, MD treated as a gastroenterologist in Gaithersburg, MD during 2013 were blood draw, preventive care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Tuanh Tonnu, MD for Medicare patients.

blood draw	372
diagnostic procedures	134
doctor visit	867
gastrointestinal procedures	176
minimally invasive procedures	176
preventive care	239
removal of lesion (e.g. growth)	134
vaccines	174

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Tuanh Tonnu, MD.

**Gender**
Male	126
Female	225

**Ethnicity**
Non-Hispanic White	36
Black	20
Hispanic	24
Asian	260
Other	0
Native American	0

**Age**
From 65 to 74	176
From 75 to 84	115
85 and over	25
Less than 65	35

Conditions of Medicare patients treated by Dr. Tuanh Tonnu, MD in 2013

The most common conditions of Medicare patients that Dr. Tuanh Tonnu, MD treated during 2013 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	73
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	17
Depression	6
Chronic Kidney Disease	8
Asthma	4
Osteoperosis	16
Atrial Fibrilation	5
Heart Failure	7
Chronic Obstructive Pulmonary Disease	3
Diabetes	28
Dementia	4
Cancer	7

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Tuanh Tonnu, MD treated as a gastroenterologist in Gaithersburg, MD during 2014 were blood draw, minimally invasive procedures, gastrointestinal procedures and preventive care.

Volume of procedures performed by Dr. Tuanh Tonnu, MD for Medicare patients.

blood draw	364
diagnostic procedures	173
doctor visit	849
gastrointestinal procedures	215
minimally invasive procedures	215
preventive care	182
removal of lesion (e.g. growth)	173
vaccines	140

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Tuanh Tonnu, MD.

**Gender**
Male	138
Female	275

**Ethnicity**
Non-Hispanic White	41
Black	35
Hispanic	35
Asian	286
Other	0
Native American	0

**Age**
From 65 to 74	218
From 75 to 84	119
85 and over	36
Less than 65	40

Conditions of Medicare patients treated by Dr. Tuanh Tonnu, MD in 2014

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

Hypertension	75
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	18
Depression	7
Chronic Kidney Disease	10
Asthma	5
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	7
Chronic Obstructive Pulmonary Disease	3
Diabetes	32
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Tuanh Tonnu, MD treated as a gastroenterologist in Gaithersburg, MD during 2015 were blood draw, minimally invasive procedures, gastrointestinal procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Tuanh Tonnu, MD for Medicare patients.

blood draw	340
diagnostic procedures	179
doctor visit	791
gastrointestinal procedures	221
minimally invasive procedures	221
preventive care	42
removal of lesion (e.g. growth)	179

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Tuanh Tonnu, MD.

**Gender**
Male	254
Female	558

**Ethnicity**
Non-Hispanic White	88
Black	50
Hispanic	68
Asian	578
Other	28
Native American	0

**Age**
From 65 to 74	406
From 75 to 84	266
85 and over	80
Less than 65	60

Conditions of Medicare patients treated by Dr. Tuanh Tonnu, MD in 2015

The most common conditions of Medicare patients that Dr. Tuanh Tonnu, MD treated during 2015 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	73
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	19
Depression	9
Chronic Kidney Disease	14
Asthma	5
Osteoperosis	14
Atrial Fibrilation	3
Heart Failure	7
Chronic Obstructive Pulmonary Disease	3
Diabetes	33
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Tuanh Tonnu, MD treated as a gastroenterologist in Gaithersburg, MD during 2016 were blood draw, minimally invasive procedures, gastrointestinal procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Tuanh Tonnu, MD for Medicare patients.

blood draw	347
diagnostic procedures	245
doctor visit	794
gastrointestinal procedures	296
minimally invasive procedures	296
preventive care	51
removal of lesion (e.g. growth)	245

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Tuanh Tonnu, MD.

**Gender**
Male	145
Female	295

**Ethnicity**
Non-Hispanic White	53
Black	39
Hispanic	40
Asian	295
Other	0
Native American	0

**Age**
From 65 to 74	237
From 75 to 84	130
85 and over	36
Less than 65	37

Conditions of Medicare patients treated by Dr. Tuanh Tonnu, MD in 2016

The most common conditions of Medicare patients that Dr. Tuanh Tonnu, MD treated during 2016 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	70
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	19
Depression	9
Chronic Kidney Disease	15
Asthma	5
Osteoperosis	12
Atrial Fibrilation	3
Heart Failure	5
Chronic Obstructive Pulmonary Disease	3
Diabetes	34
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Tuanh Tonnu, MD treated as a gastroenterologist in Gaithersburg, MD during 2017 were blood draw, minimally invasive procedures, gastrointestinal procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Tuanh Tonnu, MD for Medicare patients.

blood draw	340
diagnostic procedures	242
doctor visit	767
gastrointestinal procedures	272
minimally invasive procedures	272
preventive care	30
removal of lesion (e.g. growth)	242

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Tuanh Tonnu, MD.

**Gender**
Male	134
Female	267

**Ethnicity**
Non-Hispanic White	41
Black	31
Hispanic	38
Asian	278
Other	13
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	124
85 and over	39
Less than 65	33

Conditions of Medicare patients treated by Dr. Tuanh Tonnu, MD in 2017

The most common conditions of Medicare patients that Dr. Tuanh Tonnu, MD treated during 2017 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	71
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	25
Depression	8
Chronic Kidney Disease	19
Asthma	6
Osteoperosis	12
Atrial Fibrilation	5
Heart Failure	10
Chronic Obstructive Pulmonary Disease	5
Diabetes	34
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Tuanh Tonnu, MD treated as a gastroenterologist in Gaithersburg, MD during 2018 were blood draw, minimally invasive procedures, gastrointestinal procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Tuanh Tonnu, MD for Medicare patients.

blood draw	312
diagnostic procedures	229
doctor visit	736
gastrointestinal procedures	273
minimally invasive procedures	273
preventive care	44
removal of lesion (e.g. growth)	229

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Tuanh Tonnu, MD.

**Gender**
Male	136
Female	269

**Ethnicity**
Non-Hispanic White	45
Black	32
Hispanic	28
Asian	288
Other	12
Native American	0

**Age**
From 65 to 74	224
From 75 to 84	121
85 and over	35
Less than 65	25

Conditions of Medicare patients treated by Dr. Tuanh Tonnu, MD in 2018

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

Hypertension	72
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	20
Depression	9
Chronic Kidney Disease	21
Asthma	3
Osteoperosis	14
Atrial Fibrilation	3
Heart Failure	6
Chronic Obstructive Pulmonary Disease	4
Diabetes	37
Dementia	5
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Tuanh Tonnu, MD treated as a gastroenterologist in Gaithersburg, MD during 2019 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Tuanh Tonnu, MD for Medicare patients.

blood draw	274
diagnostic procedures	276
doctor visit	778
gastrointestinal procedures	326
minimally invasive procedures	326
preventive care	50
removal of lesion (e.g. growth)	276

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Tuanh Tonnu, MD.

**Gender**
Male	158
Female	291

**Ethnicity**
Non-Hispanic White	42
Black	28
Hispanic	51
Asian	308
Other	20
Native American	0

**Age**
From 65 to 74	231
From 75 to 84	147
85 and over	40
Less than 65	31

Conditions of Medicare patients treated by Dr. Tuanh Tonnu, MD in 2019

The most common conditions of Medicare patients that Dr. Tuanh Tonnu, MD treated during 2019 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	73
High Cholesterol	64
Stroke	4
Ischemic Heart Disease	24
Depression	10
Chronic Kidney Disease	21
Asthma	5
Osteoperosis	16
Atrial Fibrilation	3
Heart Failure	6
Chronic Obstructive Pulmonary Disease	5
Diabetes	41
Dementia	10
Cancer	6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Tuanh Tonnu, MD treated as a gastroenterologist in Gaithersburg, MD during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Tuanh Tonnu, MD for Medicare patients.

blood draw	61
diagnostic procedures	132
doctor visit	589
gastrointestinal procedures	144
minimally invasive procedures	144
preventive care	12
removal of lesion (e.g. growth)	132

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Tuanh Tonnu, MD.

**Gender**
Male	104
Female	227

**Ethnicity**
Non-Hispanic White	29
Black	32
Hispanic	32
Asian	221
Other	0
Native American	0

**Age**
From 65 to 74	156
From 75 to 84	106
85 and over	41
Less than 65	28

Conditions of Medicare patients treated by Dr. Tuanh Tonnu, MD in 2020

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

Hypertension	74
High Cholesterol	62
Stroke	4
Ischemic Heart Disease	24
Depression	9
Chronic Kidney Disease	24
Asthma	4
Osteoperosis	14
Atrial Fibrilation	3
Heart Failure	6
Chronic Obstructive Pulmonary Disease	0
Diabetes	39
Dementia	7
Cancer	7

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Tuanh Tonnu, MD treated as a gastroenterologist in Gaithersburg, MD during 2021 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Tuanh Tonnu, MD for Medicare patients.

diagnostic procedures	270
doctor visit	732
gastrointestinal procedures	310
minimally invasive procedures	310
preventive care	40
removal of lesion (e.g. growth)	270

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Tuanh Tonnu, MD.

**Gender**
Male	141
Female	294

**Ethnicity**
Non-Hispanic White	48
Black	25
Hispanic	34
Asian	308
Other	0
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	150
85 and over	50
Less than 65	28

Conditions of Medicare patients treated by Dr. Tuanh Tonnu, MD in 2021

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

Hypertension	75
High Cholesterol	72
Stroke	5
Ischemic Heart Disease	20
Depression	8
Chronic Kidney Disease	22
Asthma	3
Osteoperosis	14
Atrial Fibrilation	0
Heart Failure	4
Chronic Obstructive Pulmonary Disease	3
Diabetes	38
Dementia	9
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Tuanh Tonnu, MD treated as a gastroenterologist in Gaithersburg, MD during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Tuanh Tonnu, MD for Medicare patients.

diagnostic procedures	291
doctor visit	746
gastrointestinal procedures	335
minimally invasive procedures	335
preventive care	44
removal of lesion (e.g. growth)	291

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Tuanh Tonnu, MD.

**Gender**
Male	139
Female	323

**Ethnicity**
Non-Hispanic White	42
Black	22
Hispanic	34
Asian	337
Other	27
Native American	0

**Age**
From 65 to 74	222
From 75 to 84	165
85 and over	51
Less than 65	24

Conditions of Medicare patients treated by Dr. Tuanh Tonnu, MD in 2022

The most common conditions of Medicare patients that Dr. Tuanh Tonnu, MD treated during 2022 were high cholesterol, hypertension, diabetes and osteoperosis.

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	14
Depression	8
Chronic Kidney Disease	13
Asthma	6
Osteoperosis	26
Atrial Fibrilation	4
Heart Failure	4
Chronic Obstructive Pulmonary Disease	6
Diabetes	41
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Tuanh Tonnu, MD treated as a gastroenterologist in Gaithersburg, MD during 2023 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Tuanh Tonnu, MD for Medicare patients.

diagnostic procedures	252
doctor visit	665
gastrointestinal procedures	291
minimally invasive procedures	291
preventive care	39
removal of lesion (e.g. growth)	252

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Tuanh Tonnu, MD.

**Gender**
Male	122
Female	270

**Ethnicity**
Non-Hispanic White	40
Black	24
Hispanic	26
Asian	274
Other	28
Native American	0

**Age**
From 65 to 74	168
From 75 to 84	154
85 and over	51
Less than 65	19

Conditions of Medicare patients treated by Dr. Tuanh Tonnu, MD in 2023

The most common conditions of Medicare patients that Dr. Tuanh Tonnu, MD treated during 2023 were high cholesterol, hypertension, diabetes and osteoperosis.

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	18
Depression	14
Chronic Kidney Disease	16
Asthma	6
Osteoperosis	28
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	5
Diabetes	39
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Tuanh Tonnu, MD for Medicare patients.

The highest averages for the top procedures that Dr. Tuanh Tonnu, MD treated as a gastroenterologist in Gaithersburg, MD were blood draw, minimally invasive procedures, gastrointestinal procedures and removal of lesion (e.g. growth).

blood draw	301
diagnostic procedures	220
doctor visit	755
gastrointestinal procedures	259
minimally invasive procedures	259
preventive care	70
removal of lesion (e.g. growth)	220
vaccines	157

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Tuanh Tonnu, MD.

**Gender**
Female	299
Male	145

**Ethnicity**
Black / African American	30
Asian / Pacific Islander	312
Non-Hispanic White	45
Hispanic	37
Native American / Alaskan Native	0
Other	11

**Age**
85 and over	44
75 to 84	145
Less than 65	32
65 to 74	222

Average of Total of Conditions of Medicare patients treated by Dr. Tuanh Tonnu, MD From 2013 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Tuanh Tonnu, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	73
High Cholesterol	63
Stroke	2
Ischemic Heart Disease	19
Depression	8
Chronic Kidney Disease	16
Asthma	4
Osteoporosis	16
Heart Failure	6
Chronic Obstructive Pulmonary Disease	3
Diabetes	36
Atrial Fibrillation	3
Cancer	8
Dementia	6

Education & Training

Dr. Tuanh Tonnu, MD graduated from University of Maryland School of Medicine in 1990. She has a state license in Maryland.

Medical School: University of Maryland School of Medicine (1990)

Licensed In: Maryland

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General Payments

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

**Payments by Company**
Gilead Sciences, Inc.	$1,579 Vemlidy $239	$1,340
Gilead Sciences Inc	$545 $545
Covidien LP	$471 Manometry $206	Bravo $100	Beacon $97	GI Solutions $3	$65
AbbVie, Inc.	$277 Viekira $118	Moderiba $53	Mavyret $43	Humira $35	Technivie $28
AbbVie Inc.	$245 Mavyret $225	LINZESS $20
Other	$1,554 OLYSIO $133	TEZSPIRE $125	BARACLUDE $122	SUPREP $94	XIFAXAN $93	Other $987