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Home > TX Providers > Transplant Surgeons

Dr. Nicholas Onaca, MD

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Specializes in: General Surgery and Transplant Surgery

1400 8th Avenue
Fort Worth, TX 76104

(817) 922-4650

Dr. Nicholas Onaca, MD is a general surgeon in Fort Worth, TX specializing in general surgery and transplant surgery.

Office Locations

1400 8th Avenue
Fort Worth, TX 76104

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In The News

“"We are grateful for the selfless act of living kidney donors, who decide to give a kidney to a family member, a friend, or as an altruistic act to a stranger - thus quickly relieving a person from...”—"Bossier woman meets her literal life saver", Bossier Press-Tribune, August 2019

“Dr. Nicholas Onaca is the hospital's director of kidney transplant.”—"Healthy Lifestyle Important After Organ Transplant", CBS News, March 2013

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Nicholas Onaca, MD treated as a general surgeon in Fort Worth, TX during 2013 were hospital care, inpatient care, transplant procedures and abdominal surgery.

Volume of procedures performed by Dr. Nicholas Onaca, MD for Medicare patients.

abdominal surgery	28
diagnostic procedures	16
doctor visit	166
hospital care	557
inpatient care	557
minimally invasive procedures	16
minor procedures	16
transplant procedures	28
urologic procedures	28

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas Onaca, MD.

**Gender**
Male	132
Female	90

**Ethnicity**
Non-Hispanic White	116
Black	41
Hispanic	51
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	155

Conditions of Medicare patients treated by Dr. Nicholas Onaca, MD in 2013

The most common conditions of Medicare patients that Dr. Nicholas Onaca, MD treated during 2013 were chronic kidney disease, hypertension, diabetes and high cholesterol.

Hypertension	75
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	34
Depression	32
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	7
Atrial Fibrilation	6
Heart Failure	31
Chronic Obstructive Pulmonary Disease	13
Diabetes	69
Dementia	9
Cancer	6

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Nicholas Onaca, MD treated as a general surgeon in Fort Worth, TX during 2014 were hospital care, inpatient care, transplant procedures and abdominal surgery.

Volume of procedures performed by Dr. Nicholas Onaca, MD for Medicare patients.

abdominal surgery	22
doctor visit	87
hospital care	337
inpatient care	337
transplant procedures	22
urologic procedures	22

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas Onaca, MD.

**Gender**
Male	135
Female	67

**Ethnicity**
Non-Hispanic White	108
Black	43
Hispanic	38
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	144

Conditions of Medicare patients treated by Dr. Nicholas Onaca, MD in 2014

The most common conditions of Medicare patients that Dr. Nicholas Onaca, MD treated during 2014 were chronic kidney disease, hypertension, diabetes and high cholesterol.

Hypertension	75
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	36
Depression	23
Chronic Kidney Disease	75
Asthma	5
Osteoperosis	6
Atrial Fibrilation	6
Heart Failure	36
Chronic Obstructive Pulmonary Disease	12
Diabetes	70
Dementia	9
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Nicholas Onaca, MD treated as a general surgeon in Fort Worth, TX during 2015 were hospital care, inpatient care, transplant procedures and abdominal surgery.

Volume of procedures performed by Dr. Nicholas Onaca, MD for Medicare patients.

abdominal surgery	37
doctor visit	108
hospital care	241
inpatient care	241
transplant procedures	37
urologic procedures	37

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas Onaca, MD.

**Gender**
Male	240
Female	186

**Ethnicity**
Non-Hispanic White	240
Black	86
Hispanic	72
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	290

Conditions of Medicare patients treated by Dr. Nicholas Onaca, MD in 2015

The most common conditions of Medicare patients that Dr. Nicholas Onaca, MD treated during 2015 were chronic kidney disease, hypertension, diabetes and high cholesterol.

Hypertension	75
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	28
Depression	23
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	11
Atrial Fibrilation	6
Heart Failure	31
Chronic Obstructive Pulmonary Disease	10
Diabetes	57
Dementia	9
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Nicholas Onaca, MD treated as a general surgeon in Fort Worth, TX during 2016 were hospital care, inpatient care, transplant procedures and abdominal surgery.

Volume of procedures performed by Dr. Nicholas Onaca, MD for Medicare patients.

abdominal surgery	26
doctor visit	15
hospital care	183
inpatient care	183
transplant procedures	26
urologic procedures	26

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas Onaca, MD.

**Gender**
Male	87
Female	58

**Ethnicity**
Non-Hispanic White	75
Black	27
Hispanic	31
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	108

Conditions of Medicare patients treated by Dr. Nicholas Onaca, MD in 2016

The most common conditions of Medicare patients that Dr. Nicholas Onaca, MD treated during 2016 were chronic kidney disease, hypertension, diabetes and high cholesterol.

Hypertension	75
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	39
Depression	30
Chronic Kidney Disease	75
Asthma	14
Osteoperosis	10
Atrial Fibrilation	8
Heart Failure	41
Chronic Obstructive Pulmonary Disease	8
Diabetes	74
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Nicholas Onaca, MD treated as a general surgeon in Fort Worth, TX during 2017 were hospital care, inpatient care, transplant procedures and abdominal surgery.

Volume of procedures performed by Dr. Nicholas Onaca, MD for Medicare patients.

abdominal surgery	21
doctor visit	37
hospital care	205
inpatient care	205
transplant procedures	21
urologic procedures	21

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas Onaca, MD.

**Gender**
Male	90
Female	74

**Ethnicity**
Non-Hispanic White	86
Black	34
Hispanic	32
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	100

Conditions of Medicare patients treated by Dr. Nicholas Onaca, MD in 2017

The most common conditions of Medicare patients that Dr. Nicholas Onaca, MD treated during 2017 were chronic kidney disease, hypertension, diabetes and high cholesterol.

Hypertension	75
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	35
Depression	32
Chronic Kidney Disease	75
Asthma	12
Osteoperosis	13
Atrial Fibrilation	9
Heart Failure	33
Chronic Obstructive Pulmonary Disease	13
Diabetes	71
Dementia	10
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Nicholas Onaca, MD treated as a general surgeon in Fort Worth, TX during 2018 were hospital care, inpatient care, transplant procedures and abdominal surgery.

Volume of procedures performed by Dr. Nicholas Onaca, MD for Medicare patients.

abdominal surgery	20
hospital care	173
inpatient care	173
transplant procedures	20
urologic procedures	20

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas Onaca, MD.

**Gender**
Male	59
Female	49

**Ethnicity**
Non-Hispanic White	62
Black	21
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	71

Conditions of Medicare patients treated by Dr. Nicholas Onaca, MD in 2018

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

Hypertension	75
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	40
Depression	29
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	11
Atrial Fibrilation	0
Heart Failure	32
Chronic Obstructive Pulmonary Disease	11
Diabetes	74
Dementia	14
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Nicholas Onaca, MD treated as a general surgeon in Fort Worth, TX during 2019 were hospital care, inpatient care, transplant procedures and abdominal surgery.

Volume of procedures performed by Dr. Nicholas Onaca, MD for Medicare patients.

abdominal surgery	15
doctor visit	13
hospital care	118
inpatient care	118
transplant procedures	15
urologic procedures	15

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas Onaca, MD.

**Gender**
Male	71
Female	44

**Ethnicity**
Non-Hispanic White	54
Black	0
Hispanic	27
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	68

Conditions of Medicare patients treated by Dr. Nicholas Onaca, MD in 2019

The most common conditions of Medicare patients that Dr. Nicholas Onaca, MD treated during 2019 were chronic kidney disease, hypertension, diabetes and high cholesterol.

Hypertension	75
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	38
Depression	24
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	13
Atrial Fibrilation	0
Heart Failure	49
Chronic Obstructive Pulmonary Disease	0
Diabetes	70
Dementia	10
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Nicholas Onaca, MD treated as a general surgeon in Fort Worth, TX during 2020 were hospital care, inpatient care, transplant procedures and abdominal surgery.

Volume of procedures performed by Dr. Nicholas Onaca, MD for Medicare patients.

abdominal surgery	24
hospital care	140
inpatient care	140
transplant procedures	24
urologic procedures	24

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas Onaca, MD.

**Gender**
Male	69
Female	45

**Ethnicity**
Non-Hispanic White	46
Black	24
Hispanic	30
Asian	0
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Nicholas Onaca, MD in 2020

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

Hypertension	75
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	48
Depression	27
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	10
Heart Failure	41
Chronic Obstructive Pulmonary Disease	13
Diabetes	61
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Nicholas Onaca, MD treated as a general surgeon in Fort Worth, TX during 2021 were hospital care, inpatient care, transplant procedures and abdominal surgery.

Volume of procedures performed by Dr. Nicholas Onaca, MD for Medicare patients.

abdominal surgery	15
hospital care	86
inpatient care	86
transplant procedures	15
urologic procedures	15

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas Onaca, MD.

**Gender**
Male	45
Female	24

**Ethnicity**
Non-Hispanic White	32
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	43

Conditions of Medicare patients treated by Dr. Nicholas Onaca, MD in 2021

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

Hypertension	75
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	43
Depression	20
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	19
Atrial Fibrilation	0
Heart Failure	41
Chronic Obstructive Pulmonary Disease	0
Diabetes	61
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. Nicholas Onaca, MD for Medicare patients.

The highest averages for the top procedures that Dr. Nicholas Onaca, MD treated as a general surgeon in Fort Worth, TX were hospital care, inpatient care, transplant procedures and abdominal surgery.

abdominal surgery	23
diagnostic procedures	16
doctor visit	71
hospital care	226
inpatient care	226
minimally invasive procedures	16
minor procedures	16
transplant procedures	23
urologic procedures	23

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Nicholas Onaca, MD.

**Gender**
Male	103
Female	70

**Ethnicity**
Black / African American	32
Asian / Pacific Islander	0
Non-Hispanic White	91
Native American / Alaskan Native	0
Hispanic	31
Other	0

**Age**
75 to 84	0
85 and over	0
Less than 65	117
65 to 74	0

Average of Total of Conditions of Medicare patients treated by Dr. Nicholas Onaca, MD From 2013 - 2021

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

Hypertension	75
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	37
Depression	26
Chronic Kidney Disease	75
Asthma	5
Osteoporosis	10
Heart Failure	37
Chronic Obstructive Pulmonary Disease	8
Diabetes	67
Atrial Fibrillation	5
Cancer	0
Dementia	6

Education & Training

He has a state license in Texas.

Licensed In: Texas

Ratings & Reviews

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General Payments

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

**Payments by Company**
Intuitive Surgical, Inc.	$846 Da Vinci Surgical System $846
Novartis Pharmaceuticals Corporation	$565 ZORTRESS $528	NON BRAND $12	$24
Astellas Pharma US Inc	$314 Prograf $55	Cresemba $27	MYCAMINE $21	Astagraf $11	$199
Veloxis Pharmaceuticals, Inc.	$270 Envarsus $270
AbbVie Inc.	$152 Creon $152
Other	$263 AlloDerm $148	Creon $86	Cellcept $29

**Types of Payments**
Food and Beverage	$1,224
Travel and Lodging	$987
Education	$199

Biography

Dr. Nicholas Onaca specializes in general surgery and transplant surgery and practices in Fort Worth, TX. Dr. Onaca has obtained a license to practice in Texas.