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Dr. Mariana Isabel Chavez, MD

(Mariana Torrealba)

(No ratings)

Specializes in: Medical Oncology and General Surgery

Central University of Venezuela Faculty of Medicine

Professional interests include: hepatobiliary surgery, pancreas problems, liver cancer, and more.

410 42nd 42nd Ave. Avenue N. Suite 400
Nashville, TN 37209

(615) 329-7887

Dr. Mariana Isabel Chavez, MD is a medical oncologist in Nashville, TN specializing in medical oncology and general surgery. She graduated from Central University of Venezuela Faculty of Medicine. Dr. Mariana Isabel Chavez, MD is affiliated with TriStar Health, Ascension and TriStar Centennial Medical Center Sarah Cannon Cancer Institute.

Office Locations

410 42nd 42nd Ave. Avenue N. Suite 400
Nashville, TN 37209

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356 24th Avenue North Suite 400
Nashville, TN 37203

(615) 329-7887

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Ascension

410 42nd Avenue N Suite 400
Nashville, TN 37209

(615) 329-7887

(615) 340-4537

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660 S Mount Juliet Road Suite 230 Mt Juliet Tn
Mount Juliet, TN 37122

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Some issues Dr. Mariana Isabel Chavez, MD can help you with:

Gallbladder Removal Surgery (Cholecystectomy)

The gallbladder is a small, pear-shaped organ on the right side of the upper abdomen, underneath the liver. Its purpose is to store bile, which is used to digest fat. Occasionally, the gallbladder can develop mineral stones, called gallstones. If they are large enough, gallstones can block the ducts in the gallbladder and cause swelling and infection. Gallstones can be treated with lifestyle changes and medication, but sometimes this is not enough. In these cases, it is best to remove the gallbladder before it can cause more serious problems. The surgical removal of the gallbladder is called a cholecystectomy.

Today, most gallbladder surgeries are done laparoscopically. Four tiny incisions are made in the abdomen, and small tools are inserted through these tiny incisions to perform the surgery. Because the incisions are much smaller, recovery time is much faster with this type of surgery. Patients are usually discharged from the hospital the same day. Sometimes, open surgery is used to remove a gallbladder. In this type of surgery, a cut about six inches long is made in the upper right abdomen. After the gallbladder is removed, it is sutured or stapled closed. With open surgery, patients usually stay in the hospital for two to three days to recover before they are discharged.

Gallbladder removal, like any surgery, carries some risks, such as bleeding, infection, or the development of blood clots. Doctors will tell patients how to minimize their risk for complications. After surgery, patients are advised to avoid strenuous activity for several days. They should not soak in a bath until their sutures or staples have been removed. Patients should wash hands before touching the area around the incision. It will take a couple of days until patients feel like themselves again and a few weeks until their scar has healed and faded.

Laparoscopic Surgery

Laparoscopic surgery is a kind of minimally invasive surgery using a thin, narrow tube called a laparoscope. Usually performed on the abdomen or the pelvic region, the surgeon makes a few very small incisions instead of one large one.

During the procedure, the surgeon inserts the laparoscope, which contains a light and camera that allows the surgeon to see what is happening inside the body. Then tiny tools are placed through the small openings and used to perform the surgery.

The most common laparoscopic surgery is gallbladder removal, but laparoscopic surgery may also be used for the removal of a kidney or appendix, to treat certain cysts and tumors, for bariatric surgery, for some GERD treatments, or for hernia repairs, among others.

Because laparoscopic surgery only uses a few tiny incisions, the scars are minimal and recovery is easier than with open surgery.

Noteworthy Medicare Patient Procedures Performed by Dr. Mariana Isabel Chavez, MD in 2024

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

Top 25%

By Volume:

tunneled central line placement

In 2012, Dr. Mariana Isabel Chavez, MD performed more tunneled central line placement procedures for Medicare patients than 75% of providers in related specialties within Tennessee.

Medicare Procedure and Patient Information

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mariana Isabel Chavez, MD.

**Ethnicity**
Non-Hispanic White	11
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. Mariana Isabel Chavez, MD in 2018

Hypertension	60
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	70
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	75
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mariana Isabel Chavez, MD.

**Gender**
Male	16
Female	15

**Age**
From 65 to 74	12
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mariana Isabel Chavez, MD in 2019

Hypertension	75
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	45
Depression	48
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	42
Chronic Obstructive Pulmonary Disease	35
Diabetes	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mariana Isabel Chavez, MD treated as a medical oncologist in Nashville, TN during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Mariana Isabel Chavez, MD for Medicare patients.

hospital care	90
inpatient care	90

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mariana Isabel Chavez, MD.

**Gender**
Male	45
Female	44

**Ethnicity**
Non-Hispanic White	74
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	39
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mariana Isabel Chavez, MD in 2020

Hypertension	75
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	53
Depression	39
Chronic Kidney Disease	72
Asthma	0
Osteoperosis	0
Atrial Fibrilation	21
Heart Failure	31
Chronic Obstructive Pulmonary Disease	28
Diabetes	44
Dementia	16
Cancer	26

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mariana Isabel Chavez, MD treated as a medical oncologist in Nashville, TN during 2021 were hospital care, inpatient care and catheterization.

Volume of procedures performed by Dr. Mariana Isabel Chavez, MD for Medicare patients.

catheterization	22
doctor visit	88
hospital care	121
inpatient care	121

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mariana Isabel Chavez, MD.

**Gender**
Male	70
Female	69

**Ethnicity**
Non-Hispanic White	126
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	61
From 75 to 84	53
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mariana Isabel Chavez, MD in 2021

Hypertension	75
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	38
Depression	27
Chronic Kidney Disease	60
Asthma	0
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	24
Diabetes	40
Dementia	12
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mariana Isabel Chavez, MD treated as a medical oncologist in Nashville, TN during 2022 were hospital care, inpatient care and catheterization.

Volume of procedures performed by Dr. Mariana Isabel Chavez, MD for Medicare patients.

catheterization	19
doctor visit	131
hospital care	58
inpatient care	58

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mariana Isabel Chavez, MD.

**Gender**
Male	64
Female	94

**Ethnicity**
Non-Hispanic White	136
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	53
85 and over	14
Less than 65	14

Conditions of Medicare patients treated by Dr. Mariana Isabel Chavez, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	30
Depression	29
Chronic Kidney Disease	33
Asthma	12
Osteoperosis	9
Atrial Fibrilation	23
Heart Failure	16
Chronic Obstructive Pulmonary Disease	27
Diabetes	43
Dementia	12
Cancer	27

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mariana Isabel Chavez, MD treated as a medical oncologist in Nashville, TN during 2023 were hospital care, inpatient care and catheterization.

Volume of procedures performed by Dr. Mariana Isabel Chavez, MD for Medicare patients.

catheterization	28
doctor visit	168
hospital care	29
inpatient care	29

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mariana Isabel Chavez, MD.

**Gender**
Male	75
Female	84

**Ethnicity**
Non-Hispanic White	140
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	81
From 75 to 84	52
85 and over	11
Less than 65	15

Conditions of Medicare patients treated by Dr. Mariana Isabel Chavez, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	31
Depression	28
Chronic Kidney Disease	26
Asthma	8
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	18
Chronic Obstructive Pulmonary Disease	23
Diabetes	42
Dementia	0
Cancer	33

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Mariana Isabel Chavez, MD treated as a medical oncologist in Nashville, TN during 2024 were catheterization, hospital care and inpatient care.

Volume of procedures performed by Dr. Mariana Isabel Chavez, MD for Medicare patients.

catheterization	19
doctor visit	174
hospital care	19
inpatient care	19

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Mariana Isabel Chavez, MD.

**Gender**
Male	61
Female	109

**Ethnicity**
Non-Hispanic White	150
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	59
85 and over	11
Less than 65	11

Conditions of Medicare patients treated by Dr. Mariana Isabel Chavez, MD in 2024

Hypertension	75
High Cholesterol	73
Stroke	11
Ischemic Heart Disease	31
Depression	24
Chronic Kidney Disease	28
Asthma	7
Osteoperosis	18
Atrial Fibrilation	19
Heart Failure	19
Chronic Obstructive Pulmonary Disease	17
Diabetes	36
Dementia	7
Cancer	25

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2017 - 2024

Volume of procedures performed by Dr. Mariana Isabel Chavez, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mariana Isabel Chavez, MD treated as a medical oncologist in Nashville, TN were hospital care, inpatient care and catheterization.

catheterization	22
doctor visit	140
hospital care	63
inpatient care	63

Average Medicare Patient Data From 2017 - 2024

Information about Medicare patients treated by Dr. Mariana Isabel Chavez, MD.

**Gender**
Female	51
Male	41

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	79
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	30
85 and over	4
Less than 65	5
65 to 74	44

Average of Total of Conditions of Medicare patients treated by Dr. Mariana Isabel Chavez, MD From 2017 - 2024

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

Hypertension	63
High Cholesterol	60
Stroke	3
Ischemic Heart Disease	28
Depression	24
Chronic Kidney Disease	45
Asthma	3
Osteoporosis	4
Heart Failure	18
Chronic Obstructive Pulmonary Disease	19
Diabetes	40
Atrial Fibrillation	12
Dementia	5
Cancer	15

Education & Training

Dr. Mariana Isabel Chavez, MD graduated from Central University of Venezuela Faculty of Medicine. She completed residency at University of Tennessee Affiliated Hospitals. She is certified by the Certifications: The American Board of Surgery - Surgery and has a state license in Tennessee.

Medical School: Central University of Venezuela Faculty of Medicine

Residency: University of Tennessee Affiliated Hospitals

Board Certification: Certifications: The American Board of Surgery - Surgery

Licensed In: Tennessee

Affiliations & Hospitals

Dr. Mariana Isabel Chavez, MD is associated with these hospitals and organizations:

TriStar Health

Ascension

TriStar Centennial Medical Center Sarah Cannon Cancer Institute

Ratings & Reviews

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General Payments

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

**Payments by Company**
Intuitive Surgical, Inc.	$8,955 Da Vinci Surgical System $8,955
AbbVie Inc.	$316 Creon $316
Ipsen Biopharmaceuticals, Inc	$276 ONIVYDE $151	Somatuline Depot 120mg-.5ml $125
Ethicon US, LLC	$133 Certus 140 $133
Covidien LP	$111 Emprint $111
Other	$295 GORE SYNECOR Biomaterial $93	ENDURANT IIS $37	AirSeal $36	myRisk $25	GRAFIX $21	Other $83

**Types of Payments**
Education	$6,000
Travel and Lodging	$2,089
Food and Beverage	$1,990
Gift	$9

Biography

Dr. Mariana Chavez specializes in general surgery and medical oncology and practices in Nashville, TN. Dr. Chavez's clinical interests include pancreas problems, gallbladder removal surgery (cholecystectomy), and gallbladder problems. Before performing her residency at a hospital affiliated with the University of Texas Health Science Center at Houston and a hospital affiliated with the University of Tennessee, Dr. Chavez attended Central University of Venezuela Faculty of Medicine for medical school. She speaks Spanish. Dr. Chavez's hospital/clinic affiliations include Ascension and TriStar Health.