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Dr. Maurizio Bonacini, MD

(Maurizio Bonacini, MD)

(No ratings)

Specializes in: Gastroenterology (Digestive System)
Professional interests include: fistula, endoscopic ultrasound (EUS), liver mass, and more.
2752 Harrison Avenue Suite A
Eureka, CA 95501

Dr. Maurizio Bonacini, MD is a gastroenterologist in Eureka, CA specializing in gastroenterology (digestive system). Dr. Maurizio Bonacini, MD is affiliated with Providence, St. Joseph Medical Group Gastroenterology & Hepatology - Eureka and Providence Medical Group Humboldt.

View Doctor's Full Profile (707) 443-4869

Office Locations

2752 Harrison Avenue Suite A
Eureka, CA 95501
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Some issues Dr. Maurizio Bonacini, 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.

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 (see more mentions in the news)

“Gastroenterologist and hepatologist Dr. Maurizio Bonacini looks on at the office where patients are taking part in a clinical trial for a potential cure for hepatitis B in San Francisco, Calif., on...”—"Bay Area doctor pursues cure for chronic hepatitis B as prevention falters", Mercury News, September 2025
“Gastroenterologist and hepatologist Dr. Maurizio Bonacini looks on at the office where patients are taking part in a clinical trial for a potential cure for hepatitis B in San Francisco, on Aug....”—"Bay Area doctor pursues cure for chronic hepatitis B as prevention falters", The Columbian, September 2025
“The family would like to thank the doctors, nurses and staff at California Pacific Medical Center, and especially Dr. Maurizio Bonacini, for their compassionate care over the last few months.”—"PAOLO MORI", Marin Independent Journal, March 2010

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Maurizio Bonacini, MD treated as a gastroenterologist in Eureka, CA during 2012 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Maurizio Bonacini, MD for Medicare patients.

diagnostic procedures 59
doctor visit 249
gastrointestinal procedures 82
hospital care 178
inpatient care 178
minimally invasive procedures 82
preventive care 23
removal of lesion (e.g. growth) 59

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Maurizio Bonacini, MD treated as a gastroenterologist in Eureka, CA during 2013 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Maurizio Bonacini, MD for Medicare patients.

anastomosis 15
catheterization 15
diagnostic procedures 66
doctor visit 305
gastrointestinal procedures 113
hospital care 335
inpatient care 335
minimally invasive procedures 113
preventive care 32
removal of lesion (e.g. growth) 66

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Maurizio Bonacini, MD.

Gender
Male 152
Female 164
Ethnicity
Non-Hispanic White 109
Black 0
Hispanic 129
Asian 35
Other 0
Native American 0
Age
From 65 to 74 110
From 75 to 84 93
85 and over 43
Less than 65 70

Conditions of Medicare patients treated by Dr. Maurizio Bonacini, MD in 2013

Hypertension 72
High Cholesterol 52
Stroke 8
Ischemic Heart Disease 37
Depression 26
Chronic Kidney Disease 40
Asthma 11
Osteoperosis 10
Atrial Fibrilation 14
Heart Failure 27
Chronic Obstructive Pulmonary Disease 16
Diabetes 45
Dementia 13
Cancer 11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Maurizio Bonacini, MD treated as a gastroenterologist in Eureka, CA during 2014 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Maurizio Bonacini, MD for Medicare patients.

diagnostic procedures 77
doctor visit 314
gastrointestinal procedures 108
hospital care 305
inpatient care 305
minimally invasive procedures 108
preventive care 19
removal of lesion (e.g. growth) 77

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Maurizio Bonacini, MD.

Gender
Male 159
Female 153
Ethnicity
Non-Hispanic White 110
Black 0
Hispanic 112
Asian 44
Other 0
Native American 0
Age
From 65 to 74 108
From 75 to 84 68
85 and over 41
Less than 65 95

Conditions of Medicare patients treated by Dr. Maurizio Bonacini, MD in 2014

Hypertension 72
High Cholesterol 53
Stroke 8
Ischemic Heart Disease 32
Depression 31
Chronic Kidney Disease 37
Asthma 12
Osteoperosis 9
Atrial Fibrilation 15
Heart Failure 25
Chronic Obstructive Pulmonary Disease 15
Diabetes 36
Dementia 12
Cancer 9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Maurizio Bonacini, MD treated as a gastroenterologist in Eureka, CA during 2015 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Maurizio Bonacini, MD for Medicare patients.

diagnostic procedures 86
doctor visit 380
gastrointestinal procedures 129
hospital care 192
inpatient care 192
liver imaging 82
minimally invasive procedures 129
preventive care 25
removal of lesion (e.g. growth) 86
ultrasound (sonogram) 82

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Maurizio Bonacini, MD.

Gender
Male 340
Female 332
Ethnicity
Non-Hispanic White 270
Black 74
Hispanic 262
Asian 0
Other 0
Native American 0
Age
From 65 to 74 278
From 75 to 84 148
85 and over 74
Less than 65 172

Conditions of Medicare patients treated by Dr. Maurizio Bonacini, MD in 2015

Hypertension 73
High Cholesterol 50
Stroke 8
Ischemic Heart Disease 31
Depression 25
Chronic Kidney Disease 40
Asthma 16
Osteoperosis 9
Atrial Fibrilation 13
Heart Failure 22
Chronic Obstructive Pulmonary Disease 16
Diabetes 40
Dementia 13
Cancer 8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Maurizio Bonacini, MD treated as a gastroenterologist in Eureka, CA during 2016 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Maurizio Bonacini, MD for Medicare patients.

diagnostic procedures 70
doctor visit 364
gastrointestinal procedures 100
hospital care 157
inpatient care 157
liver imaging 88
minimally invasive procedures 100
preventive care 15
removal of lesion (e.g. growth) 70
ultrasound (sonogram) 88

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Maurizio Bonacini, MD.

Gender
Male 138
Female 173
Ethnicity
Non-Hispanic White 101
Black 41
Hispanic 129
Asian 0
Other 0
Native American 0
Age
From 65 to 74 148
From 75 to 84 73
85 and over 25
Less than 65 65

Conditions of Medicare patients treated by Dr. Maurizio Bonacini, MD in 2016

Hypertension 72
High Cholesterol 43
Stroke 7
Ischemic Heart Disease 24
Depression 23
Chronic Kidney Disease 39
Asthma 18
Osteoperosis 9
Atrial Fibrilation 10
Heart Failure 20
Chronic Obstructive Pulmonary Disease 13
Diabetes 46
Dementia 13
Cancer 10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Maurizio Bonacini, MD treated as a gastroenterologist in Eureka, CA during 2017 were ultrasound (sonogram), liver imaging, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Maurizio Bonacini, MD for Medicare patients.

diagnostic procedures 55
doctor visit 297
gastrointestinal procedures 73
hospital care 43
inpatient care 43
liver imaging 84
minimally invasive procedures 73
preventive care 18
removal of lesion (e.g. growth) 55
ultrasound (sonogram) 84

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Maurizio Bonacini, MD.

Gender
Male 134
Female 152
Ethnicity
Non-Hispanic White 97
Black 31
Hispanic 127
Asian 0
Other 0
Native American 0
Age
From 65 to 74 134
From 75 to 84 77
85 and over 24
Less than 65 51

Conditions of Medicare patients treated by Dr. Maurizio Bonacini, MD in 2017

Hypertension 71
High Cholesterol 49
Stroke 0
Ischemic Heart Disease 26
Depression 19
Chronic Kidney Disease 36
Asthma 8
Osteoperosis 9
Atrial Fibrilation 12
Heart Failure 17
Chronic Obstructive Pulmonary Disease 11
Diabetes 43
Dementia 10
Cancer 9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Maurizio Bonacini, MD treated as a gastroenterologist in Eureka, CA during 2018 were minimally invasive procedures, gastrointestinal procedures, ultrasound (sonogram) and liver imaging.

Volume of procedures performed by Dr. Maurizio Bonacini, MD for Medicare patients.

diagnostic procedures 54
doctor visit 300
gastrointestinal procedures 77
hospital care 21
inpatient care 21
liver imaging 75
minimally invasive procedures 77
preventive care 23
removal of lesion (e.g. growth) 54
ultrasound (sonogram) 75

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Maurizio Bonacini, MD.

Gender
Male 101
Female 131
Ethnicity
Non-Hispanic White 68
Black 0
Hispanic 115
Asian 26
Other 0
Native American 0
Age
From 65 to 74 129
From 75 to 84 60
85 and over 13
Less than 65 30

Conditions of Medicare patients treated by Dr. Maurizio Bonacini, MD in 2018

Hypertension 71
High Cholesterol 51
Stroke 5
Ischemic Heart Disease 23
Depression 23
Chronic Kidney Disease 36
Asthma 10
Osteoperosis 9
Atrial Fibrilation 8
Heart Failure 13
Chronic Obstructive Pulmonary Disease 12
Diabetes 47
Dementia 13
Cancer 9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Maurizio Bonacini, MD treated as a gastroenterologist in Eureka, CA during 2019 were minimally invasive procedures, gastrointestinal procedures, ultrasound (sonogram) and liver imaging.

Volume of procedures performed by Dr. Maurizio Bonacini, MD for Medicare patients.

diagnostic procedures 34
doctor visit 257
gastrointestinal procedures 62
hospital care 17
inpatient care 17
liver imaging 51
minimally invasive procedures 62
preventive care 15
removal of lesion (e.g. growth) 34
ultrasound (sonogram) 51

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Maurizio Bonacini, MD.

Gender
Male 71
Female 117
Ethnicity
Non-Hispanic White 60
Black 0
Hispanic 89
Asian 20
Other 0
Native American 0
Age
From 65 to 74 88
From 75 to 84 51
85 and over 22
Less than 65 27

Conditions of Medicare patients treated by Dr. Maurizio Bonacini, MD in 2019

Hypertension 73
High Cholesterol 54
Stroke 0
Ischemic Heart Disease 30
Depression 20
Chronic Kidney Disease 32
Asthma 7
Osteoperosis 10
Atrial Fibrilation 12
Heart Failure 20
Chronic Obstructive Pulmonary Disease 12
Diabetes 46
Dementia 15
Cancer 6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Maurizio Bonacini, MD treated as a gastroenterologist in Eureka, CA during 2020 were ultrasound (sonogram) and liver imaging.

Volume of procedures performed by Dr. Maurizio Bonacini, MD for Medicare patients.

doctor visit 159
liver imaging 40
ultrasound (sonogram) 40

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Maurizio Bonacini, MD.

Gender
Male 63
Female 62
Ethnicity
Non-Hispanic White 47
Black 0
Hispanic 50
Asian 12
Other 0
Native American 0
Age
From 65 to 74 47
From 75 to 84 41
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Maurizio Bonacini, MD in 2020

Hypertension 70
High Cholesterol 64
Stroke 0
Ischemic Heart Disease 36
Depression 22
Chronic Kidney Disease 39
Asthma 10
Osteoperosis 10
Atrial Fibrilation 12
Heart Failure 19
Chronic Obstructive Pulmonary Disease 0
Diabetes 46
Dementia 9
Cancer 0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Maurizio Bonacini, MD treated as a gastroenterologist in Eureka, CA during 2021 were ultrasound (sonogram), liver imaging, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Maurizio Bonacini, MD for Medicare patients.

diagnostic procedures 31
doctor visit 132
gastrointestinal procedures 31
hospital care 18
inpatient care 18
liver imaging 46
minimally invasive procedures 31
removal of lesion (e.g. growth) 31
ultrasound (sonogram) 46

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Maurizio Bonacini, MD.

Gender
Male 63
Female 61
Ethnicity
Non-Hispanic White 62
Black 0
Hispanic 35
Asian 15
Other 0
Native American 0
Age
From 65 to 74 59
From 75 to 84 37
85 and over 16
Less than 65 12

Conditions of Medicare patients treated by Dr. Maurizio Bonacini, MD in 2021

Hypertension 75
High Cholesterol 64
Stroke 0
Ischemic Heart Disease 43
Depression 26
Chronic Kidney Disease 48
Asthma 13
Osteoperosis 15
Atrial Fibrilation 13
Heart Failure 23
Chronic Obstructive Pulmonary Disease 13
Diabetes 48
Dementia 15
Cancer 13

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. Maurizio Bonacini, MD in 2022

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

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Maurizio Bonacini, MD for Medicare patients.

The highest averages for the top procedures that Dr. Maurizio Bonacini, MD treated as a gastroenterologist in Eureka, CA were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

anastomosis 15
catheterization 15
diagnostic procedures 59
doctor visit 275
gastrointestinal procedures 86
hospital care 140
inpatient care 140
liver imaging 66
minimally invasive procedures 86
preventive care 21
removal of lesion (e.g. growth) 59
ultrasound (sonogram) 66

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Maurizio Bonacini, MD.

Gender
Female 122
Male 111
Ethnicity
Black / African American 13
Asian / Pacific Islander 13
Non-Hispanic White 84
Hispanic 95
Native American / Alaskan Native 0
Other 0
Age
85 and over 23
75 to 84 58
Less than 65 47
65 to 74 100

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

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

Hypertension 65
High Cholesterol 50
Stroke 3
Ischemic Heart Disease 25
Depression 19
Chronic Kidney Disease 31
Asthma 9
Osteoporosis 8
Heart Failure 16
Chronic Obstructive Pulmonary Disease 9
Diabetes 36
Atrial Fibrillation 9
Dementia 10
Cancer 6

Education & Training

He is certified by the American Board of Internal Medicine, Internal Medicine and has a state license in California.

Board Certification: American Board of Internal Medicine, Internal Medicine

Licensed In: California

Affiliations & Hospitals

Dr. Maurizio Bonacini, MD is associated with these hospitals and organizations:

Providence
St. Joseph Medical Group Gastroenterology & Hepatology - Eureka
Providence Medical Group Humboldt

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. Maurizio Bonacini, MD appears to accept the following insurance providers: Aetna PPO, Aetna HMO, Cigna PPO, Western Health Advantage HMO, Blue Shield of CA PPO, Multiplan PPO, Imperial Health Medicare Advantage, HealthSmart (Interplan) PPO, TriWest - Tricare, Anthem Blue Cross PPO, Health Net PPO, Anthem Blue Cross Medicare PPO, Coventry/First Health PPO, United HealthCare PPO, US Family Health Plan - TriCare, Aetna Medicare Advantage PPO, Partnership Health Plan of California, Interplan PPO and CoventryFirst Health PPO.

Insurance Accepted by Provider includes:

According to our sources, Dr. Maurizio Bonacini, MD accepts the following insurance providers:

Aetna PPO
Aetna HMO
Cigna PPO
Western Health Advantage HMO
Blue Shield of CA PPO
Multiplan PPO
Imperial Health Medicare Advantage
HealthSmart (Interplan) PPO
TriWest - Tricare
Anthem Blue Cross PPO
Health Net PPO
Anthem Blue Cross Medicare PPO
Coventry/First Health PPO
United HealthCare PPO
US Family Health Plan - TriCare
Aetna Medicare Advantage PPO
Partnership Health Plan of California
Interplan PPO
CoventryFirst Health PPO

Ratings & Reviews

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General Payments

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

Payments by Company
Gilead Sciences Inc $175,148 Harvoni
$56,530 		Sovaldi
$27,994 		Epclusa
$15,344 		Vosevi
$3,880 		Vemlidy
$3,684 		Other
$67,716
AbbVie, Inc. $154,800 Viekira
$55,374 		Mavyret
$45,471 		Lupron
$20,841 		Moderiba
$79 		Humira
$54 		Other
$32,982
Gilead Sciences, Inc. $42,295 Epclusa
$36,917
$5,378
E.R. Squibb & Sons, L.L.C. $32,210 DAKLINZA
$24,520 		BARACLUDE
$5,346
$2,344
Janssen Products, LP $31,403 OLYSIO
$26,996
$4,407
Other $85,479 Ocaliva
$28,272 		REZDIFFRA
$21,170 		Mavyret
$10,860 		ZEPATIER
$7,902 		SELZENTRY
$4,237 		Other
$13,039
Types of Payments
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $371,039
Travel and Lodging $52,821
Consulting Fee $47,617
Food and Beverage $21,563
Compensation for serving as faculty or as a speaker for a non-accredited and noncertified continuing education program $20,400
Other $7,896

Research Payments

Dr. Maurizio Bonacini, MD has received 356 research payments totaling $1,418,627.

Biography

Dr. Maurizio Bonacini is a specialist in adult gastroenterology and adult hepatology. He works in San Francisco, CA. Dr. Bonacini is professionally affiliated with Providence Medical Foundation.

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