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Dr. Angela Merlo, MD

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Specializes in: Adult Gastroenterology

Albert Einstein College of Medicine of Yeshiva University

Professional interests include: small intestinal bacterial overgrowth (SIBO), gastric (stomach) ulcer, lactose intolerance, and more.

2 Princess Road
Lawrenceville, NJ 08648

(609) 896-0800

Dr. Angela Merlo, MD is a gastroenterologist in Lawrenceville, NJ specializing in adult gastroenterology. She graduated from Albert Einstein College of Medicine of Yeshiva University.

Office Locations

2 Princess Road
Lawrenceville, NJ 08648

(609) 896-0800

(609) 896-1330

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29 Emmons Drive Suite G10
Princeton, NJ 08540

(609) 896-0800

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Some issues Dr. Angela Merlo, 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.

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.

Weight Loss Surgery (Bariatric Surgery)

Bariatric or weight-loss surgery is a surgical procedure performed to help significantly obese patients lose weight when more traditional methods, such as dieting and exercise, have not helped. Depending on the type, these surgeries change the gastrointestinal tract to limit how much food can be eaten and also change how food is absorbed by the body. Of the various bariatric surgeries available, the most common is gastric bypass.

By far the most common of the gastric bypass surgeries is called Roux-en-Y. During this surgery, part of the stomach and small intestine are detached from the gastrointestinal tract, in order to make the tract smaller. The surgeon divides the stomach into two parts. The working stomach, at the end of the esophagus, is now tiny - only the size of a walnut. This makes patients feel full after eating a small amount of food. Then the small intestine is also divided, and after bypassing a section of the small intestine to reduce food absorption, the intestine is attached to the small stomach pouch. The patient now has a working stomach and intestine like before, only much smaller.

Because gastric bypass is used to treat extreme obesity, it can reduce the risk of some of the problems associated with obesity. Gastric bypass can help treat or reduce the risk for such conditions as heart disease, high blood pressure, sleep apnea, and type 2 diabetes. However, it is a major surgery and also carries risks itself. Any surgery can lead to infection, bleeding, or blood clots, and weight loss surgery in particular carries risks of leaks in the gastrointestinal system, malnutrition, bowel obstructions, and vomiting.

Typically patients are considered candidates for gastric bypass surgery if they have a BMI greater than 40, or sometimes if they have a BMI between 35 and 40 but are suffering from obesity-related illnesses such as diabetes. The outlook is generally good, with most patients losing between 50-75% of their excess weight in 1-2 years. However, patients must follow strict diet guidelines so that the stomach can heal, starting with no food at all, then followed by a liquid diet for some time. For many severely obese patients who have tried strict diets before without success, gastric bypass surgery is the tool that allows them to finally achieve their weight loss and health goals.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Angela Merlo, MD treated as a gastroenterologist in Lawrenceville, NJ during 2012 were methane breath test, hydrogen breath test, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Angela Merlo, MD for Medicare patients.

diagnostic procedures	11
doctor visit	91
gastrointestinal procedures	11
hydrogen breath test	26
methane breath test	26
minimally invasive procedures	11
removal of lesion (e.g. growth)	11

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. Angela Merlo, MD for Medicare patients.

doctor visit	49

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Angela Merlo, MD.

**Age**
From 65 to 74	15
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Angela Merlo, MD in 2013

Hypertension	71
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Angela Merlo, MD treated as a gastroenterologist in Lawrenceville, NJ during 2014 were methane breath test and hydrogen breath test.

Volume of procedures performed by Dr. Angela Merlo, MD for Medicare patients.

doctor visit	78
hydrogen breath test	30
methane breath test	30

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Angela Merlo, MD.

**Age**
From 65 to 74	19
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Angela Merlo, MD in 2014

Hypertension	58
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Angela Merlo, MD for Medicare patients.

doctor visit	48

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Angela Merlo, MD.

**Age**
From 65 to 74	0
From 75 to 84	26
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Angela Merlo, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	47
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Dr. Angela Merlo, MD for Medicare patients.

doctor visit	73

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Angela Merlo, MD.

**Gender**
Male	11
Female	30

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

**Age**
From 65 to 74	22
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Angela Merlo, MD in 2016

Hypertension	49
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	27
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. Angela Merlo, MD in 2017

Hypertension	67
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Angela Merlo, MD for Medicare patients.

doctor visit	33

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Angela Merlo, MD.

**Age**
From 65 to 74	15
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Angela Merlo, MD in 2018

Hypertension	75
High Cholesterol	73
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Angela Merlo, MD for Medicare patients.

doctor visit	25

Conditions of Medicare patients treated by Dr. Angela Merlo, MD in 2019

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

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Angela Merlo, MD for Medicare patients.

doctor visit	56

Conditions of Medicare patients treated by Dr. Angela Merlo, MD in 2020

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

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Angela Merlo, MD for Medicare patients.

doctor visit	34

Conditions of Medicare patients treated by Dr. Angela Merlo, MD in 2021

Hypertension	0
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Angela Merlo, MD for Medicare patients.

doctor visit	29

Conditions of Medicare patients treated by Dr. Angela Merlo, MD in 2022

Hypertension	67
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Angela Merlo, MD for Medicare patients.

The highest averages for the top procedures that Dr. Angela Merlo, MD treated as a gastroenterologist in Lawrenceville, NJ were methane breath test, hydrogen breath test, minimally invasive procedures and removal of lesion (e.g. growth).

diagnostic procedures	11
doctor visit	51
gastrointestinal procedures	11
hydrogen breath test	28
methane breath test	28
minimally invasive procedures	11
removal of lesion (e.g. growth)	11

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Angela Merlo, MD.

**Gender**
Male	1
Female	2

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	2
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	2
85 and over	0
Less than 65	0
65 to 74	6

Average of Total of Conditions of Medicare patients treated by Dr. Angela Merlo, MD From 2012 - 2022

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

Hypertension	48
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	2
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoporosis	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	8
Atrial Fibrillation	0
Dementia	0
Cancer	0

Education & Training

Dr. Angela Merlo, MD graduated from Albert Einstein College of Medicine of Yeshiva University. She completed residency at Mount Sinai Morningside. She is certified by the Board certifications: Internal Medicine and has a state license in New Jersey.

Medical School: Albert Einstein College of Medicine of Yeshiva University

Residency: Mount Sinai Morningside

Board Certification: Board certifications: Internal Medicine (1987)

Licensed In: New Jersey

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General Payments

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

**Payments by Company**
Covidien LP	$874 PillCam $855	GI Solutions $19
Boston Scientific Corporation	$98 AXIOS $98
QOL Medical, LLC	$9 SUCRAID $9

**Types of Payments**
Travel and Lodging	$636
Food and Beverage	$345

Biography

Dr. Angela Merlo's area of specialization is adult gastroenterology. These areas are among Dr. Merlo's clinical interests: polyps, esophageal motility disorders, and colon cancer. According to Penn Medicine, new patients are welcome to contact her office in Princeton, NJ. She graduated from Albert Einstein College of Medicine of Yeshiva University.