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Dr. Liam Zakko, MD

Accepting New Patients

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Specializes in: Adult Gastroenterology

University of Connecticut School of Medicine

Professional interests include: colonoscopy, endoscopy

21 South Road Suite 100
Farmington, CT 06032

(860) 409-4567

Dr. Liam Zakko, MD is a gastroenterologist in Farmington, CT specializing in adult gastroenterology. He graduated from University of Connecticut School of Medicine. Dr. Liam Zakko, MD is affiliated with Charlotte Hungerford Hospital, Bristol Hospital, Hospital of Central Connecticut, Hartford Healthcare and CONNECTICUT GI PC.

Office Locations

Hartford Healthcare

21 South Road Suite 100
Farmington, CT 06032

(860) 409-4567

(860) 409-4846

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Hartford Healthcare

245 Alvord Park Road
Torrington, CT 06790

(860) 496-0455

(860) 482-7513

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25 Newell Road
Bristol, CT 06010

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Hartford Healthcare

25 Newell Road Suite E-36
Norwich, CT 06360

(860) 583-9252

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Hospital of Central Connecticut

440 New Britain Avenue Suite 1
Plainville, CT 06062

(860) 826-3880

(860) 826-3883

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540 Litchfield Street
Torrington, CT 06790

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Some issues Dr. Liam Zakko, MD can help you with:

Colonoscopy

Colonoscopy is the use of a special tool called a colonoscope (a thin, flexible tube with a camera on the end) to examine the inside of the colon and rectum. The tube is typically inserted anally, and it allows the physician to examine the large intestine from the inside. It may be done at any time to diagnose bowel problems, but routine colonoscopies are advised after the age of 50 to screen for colon cancer.

A colonoscopy may be performed to diagnose:

Intestinal ulcers
Polyps
Bowel cancer
An unidentified source of pain or bleeding in the intestine

Patients may be asked to drink only liquids in the days before a colonoscopy, or they may be given an enema to remove residual fecal matter. Before the exam, patients are given medication to help them relax, and then lay on their side on a table. The scope is inserted into the anus and gently moved all the way through the large intestine. Air may be pumped into the intestine to improve the view for the physician. Any polyps that are found will be removed. Then the colonoscope will be withdrawn. A colonoscopy is not usually painful, but patients may feel some bloating or have some cramps right afterward. If patients have polyps removed, they might experience a small amount of bleeding. Any side effects should go away within a few hours.

Noteworthy Medicare Patient Procedures Performed by Dr. Liam Zakko, MD in 2023

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

Top 10%

By Volume:

esophageal balloon dilation

In 2023, Dr. Liam Zakko, MD performed more esophageal balloon dilation procedures for Medicare patients than 90% of providers in related specialties within Connecticut.

Top 25%

By Volume:

EGD with biopsy

EGD with esophageal dilation

EGD with lesion removal

esophageal dilation

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2013, among providers in related specialties within Connecticut, Dr. Liam Zakko, MD performed more EGD with biopsy, EGD with esophageal dilation, EGD with lesion removal, and esophageal dilation procedures for Medicare patients than 75% of them and he also had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) 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

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Liam Zakko, MD for Medicare patients.

doctor visit	31

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Liam Zakko, MD.

**Gender**
Male	38
Female	44

**Age**
From 65 to 74	40
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2015

The most common conditions of Medicare patients that Dr. Liam Zakko, MD treated during 2015 were high cholesterol, hypertension, chronic kidney disease and ischemic heart disease.

Hypertension	56
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	37
Depression	34
Chronic Kidney Disease	37
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	27
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Dr. Liam Zakko, MD for Medicare patients.

doctor visit	43

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Liam Zakko, MD.

**Gender**
Male	20
Female	35

**Age**
From 65 to 74	20
From 75 to 84	14
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2016

The most common conditions of Medicare patients that Dr. Liam Zakko, MD treated during 2016 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	40
Depression	33
Chronic Kidney Disease	33
Asthma	0
Osteoperosis	0
Atrial Fibrilation	22
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. Liam Zakko, MD for Medicare patients.

doctor visit	47

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Liam Zakko, MD.

**Gender**
Male	30
Female	29

**Age**
From 65 to 74	32
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2017

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

Hypertension	54
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	42
Depression	22
Chronic Kidney Disease	37
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	24
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Liam Zakko, MD treated as a gastroenterologist in Farmington, CT during 2018 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Liam Zakko, MD for Medicare patients.

diagnostic procedures	63
gastrointestinal procedures	63
minimally invasive procedures	63
removal of lesion (e.g. growth)	63

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Liam Zakko, MD.

**Gender**
Male	41
Female	39

**Age**
From 65 to 74	41
From 75 to 84	20
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2018

The most common conditions of Medicare patients that Dr. Liam Zakko, MD treated during 2018 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	74
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	35
Depression	26
Chronic Kidney Disease	39
Asthma	18
Osteoperosis	0
Atrial Fibrilation	24
Heart Failure	25
Chronic Obstructive Pulmonary Disease	18
Diabetes	31
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

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

Volume of procedures performed by Dr. Liam Zakko, MD for Medicare patients.

diagnostic procedures	82
doctor visit	66
gastrointestinal procedures	82
hospital care	69
inpatient care	69
minimally invasive procedures	82
removal of lesion (e.g. growth)	82

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Liam Zakko, MD.

**Gender**
Male	73
Female	84

**Ethnicity**
Non-Hispanic White	144
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	50
From 75 to 84	44
85 and over	20
Less than 65	43

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2019

The most common conditions of Medicare patients that Dr. Liam Zakko, MD treated during 2019 were hypertension, high cholesterol, depression and chronic kidney disease.

Hypertension	69
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	38
Depression	47
Chronic Kidney Disease	40
Asthma	17
Osteoperosis	8
Atrial Fibrilation	20
Heart Failure	21
Chronic Obstructive Pulmonary Disease	21
Diabetes	37
Dementia	10
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Liam Zakko, MD treated as a gastroenterologist in Farmington, CT during 2020 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Liam Zakko, MD for Medicare patients.

aspiration	11
diagnostic procedures	90
doctor visit	123
gastrointestinal procedures	103
hospital care	137
image guided procedures	11
inpatient care	137
minimally invasive procedures	103
minor procedures	11
removal of lesion (e.g. growth)	90
ultrasound (sonogram)	24

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Liam Zakko, MD.

**Gender**
Male	95
Female	131

**Ethnicity**
Non-Hispanic White	205
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	71
From 75 to 84	71
85 and over	37
Less than 65	47

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2020

The most common conditions of Medicare patients that Dr. Liam Zakko, MD treated during 2020 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	75
High Cholesterol	71
Stroke	6
Ischemic Heart Disease	47
Depression	42
Chronic Kidney Disease	49
Asthma	11
Osteoperosis	12
Atrial Fibrilation	23
Heart Failure	31
Chronic Obstructive Pulmonary Disease	28
Diabetes	35
Dementia	17
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Liam Zakko, MD treated as a gastroenterologist in Farmington, CT during 2021 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Liam Zakko, MD for Medicare patients.

aspiration	33
diagnostic procedures	103
doctor visit	90
gastrointestinal procedures	129
hospital care	123
image guided procedures	33
inpatient care	123
minimally invasive procedures	129
minor procedures	33
removal of lesion (e.g. growth)	103
stent placement (stenting)	13
ultrasound (sonogram)	46

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Liam Zakko, MD.

**Gender**
Male	96
Female	141

**Ethnicity**
Non-Hispanic White	210
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	63
85 and over	35
Less than 65	38

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2021

The most common conditions of Medicare patients that Dr. Liam Zakko, MD treated during 2021 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	75
High Cholesterol	70
Stroke	7
Ischemic Heart Disease	38
Depression	34
Chronic Kidney Disease	49
Asthma	11
Osteoperosis	13
Atrial Fibrilation	20
Heart Failure	31
Chronic Obstructive Pulmonary Disease	26
Diabetes	37
Dementia	19
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Liam Zakko, MD treated as a gastroenterologist in Farmington, CT during 2022 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Liam Zakko, MD for Medicare patients.

aspiration	23
balloon dilation	15
diagnostic procedures	106
doctor visit	78
esophageal dilation	15
gastrointestinal procedures	148
hospital care	111
image guided procedures	23
inpatient care	111
minimally invasive procedures	148
minor procedures	23
removal of lesion (e.g. growth)	106
ultrasound (sonogram)	37

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Liam Zakko, MD.

**Gender**
Male	104
Female	132

**Ethnicity**
Non-Hispanic White	211
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	69
85 and over	35
Less than 65	31

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2022

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

Hypertension	75
High Cholesterol	73
Stroke	9
Ischemic Heart Disease	35
Depression	31
Chronic Kidney Disease	35
Asthma	12
Osteoperosis	16
Atrial Fibrilation	27
Heart Failure	22
Chronic Obstructive Pulmonary Disease	31
Diabetes	38
Dementia	14
Cancer	25

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

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

Volume of procedures performed by Dr. Liam Zakko, MD for Medicare patients.

aspiration	17
balloon dilation	30
diagnostic procedures	141
doctor visit	90
esophageal dilation	30
gastrointestinal procedures	201
hospital care	50
image guided procedures	17
inpatient care	50
minimally invasive procedures	201
minor procedures	17
preventive care	14
removal of lesion (e.g. growth)	141
ultrasound (sonogram)	33

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Liam Zakko, MD.

**Gender**
Male	102
Female	136

**Ethnicity**
Non-Hispanic White	211
Black	0
Hispanic	0
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	72
85 and over	28
Less than 65	37

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2023

The most common conditions of Medicare patients that Dr. Liam Zakko, MD treated during 2023 were high cholesterol, hypertension, depression and ischemic heart disease.

Hypertension	74
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	32
Depression	32
Chronic Kidney Disease	25
Asthma	14
Osteoperosis	15
Atrial Fibrilation	19
Heart Failure	16
Chronic Obstructive Pulmonary Disease	23
Diabetes	30
Dementia	10
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2015 - 2023

Volume of procedures performed by Dr. Liam Zakko, MD for Medicare patients.

The highest averages for the top procedures that Dr. Liam Zakko, MD treated as a gastroenterologist in Farmington, CT were gastrointestinal procedures, minimally invasive procedures, inpatient care and hospital care.

aspiration	21
balloon dilation	22
diagnostic procedures	97
doctor visit	71
esophageal dilation	22
gastrointestinal procedures	121
hospital care	98
image guided procedures	21
inpatient care	98
minimally invasive procedures	121
minor procedures	21
preventive care	14
removal of lesion (e.g. growth)	97
stent placement (stenting)	13
ultrasound (sonogram)	35

Average Medicare Patient Data From 2015 - 2023

Information about Medicare patients treated by Dr. Liam Zakko, MD.

**Gender**
Male	66
Female	85

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	109
Hispanic	1
Native American / Alaskan Native	0
Other	1

**Age**
75 to 84	39
85 and over	17
Less than 65	21
65 to 74	61

Average of Total of Conditions of Medicare patients treated by Dr. Liam Zakko, MD From 2015 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Liam Zakko, MD treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	69
High Cholesterol	60
Stroke	3
Ischemic Heart Disease	38
Depression	33
Chronic Kidney Disease	38
Asthma	9
Osteoporosis	7
Heart Failure	16
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Atrial Fibrillation	17
Dementia	7
Cancer	10

Education & Training

Dr. Liam Zakko, MD graduated from University of Connecticut School of Medicine. He completed residency at Yale-New Haven Hospital. He is certified by the American Board of Internal Medicine and has a state license in New Hampshire.

Medical School: University of Connecticut School of Medicine

Residency: Yale-New Haven Hospital

Board Certification: American Board of Internal Medicine

Licensed In: New Hampshire

Affiliations & Hospitals

Dr. Liam Zakko, MD is associated with these hospitals and organizations:

Charlotte Hungerford Hospital

Bristol Hospital

Hospital of Central Connecticut

Hartford Healthcare

CONNECTICUT GI PC

Ratings & Reviews

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General Payments

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

**Payments by Company**
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$1,179 XIFAXAN $1,105	Trulance $74
Boston Scientific Corporation	$885 GENERAL THERAPIES $768	EXALT Model D $67	Resolution 360 Clip $49
Cook Medical LLC	$870 $870
AbbVie Inc.	$616 Skyrizi $237	LINZESS $203	Rinvoq $82	Humira $68	Creon $26
Takeda Pharmaceuticals U.S.A., Inc.	$321 ENTYVIO $251	GATTEX $47	$23
Other	$1,825 ZEPOSIA $223	Ocaliva $197	STELARA $158	DUPIXENT $150	ELIQUIS $125	Other $971

**Types of Payments**
Food and Beverage	$4,429
Travel and Lodging	$1,192
Grant	$75

Research Payments

Dr. Liam Zakko, MD has received 7 research payments totaling $82,247.

Ownership and Interest Payments

This table describes ownership payments received by Dr. Liam Zakko, MD.

GastroGPO, LLC

2024

$19,439.88

Physician Covered Recipient

Common Stock

Biography

Dr. Liam Zakko is a medical specialist in adult gastroenterology. Dr. Zakko attended medical school at the University of Connecticut School of Medicine. He trained at Mayo Clinic, Yale-New Haven Hospital, and Dartmouth-Hitchcock Medical Center for residency. In his practice, he is particularly interested in colonoscopy. Dr. Zakko's hospital/clinic affiliations include Hospital of Central Connecticut, Charlotte Hungerford Hospital, and Bristol Hospital. He welcomes new patients at his office inNorwich, CT as reported by Charlotte Hungerford Hospital.

Select Year:

Dr. Liam Zakko, MD

Office Locations

Some issues Dr. Liam Zakko, MD can help you with:

Noteworthy Medicare Patient Procedures Performed by Dr. Liam Zakko, MD in 2023

By Volume:

By Volume:

By Affordability:

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Liam Zakko, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2015 - 2023

Average Medicare Patient Data From 2015 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Liam Zakko, MD From 2015 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Ownership and Interest Payments

Biography

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