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Dr. Melissa Martinez Diaz, MD

Accepting New Patients

(Melissa Martinez-Diaz, MD)

(2010 Ratings)

Specializes in: Internal Medicine (Adult Medicine)

Universidad Autonoma de Guadalajara (2000)

Professional interests include: physical exams, weight loss, immunization (preventive vaccines)

720 Pleasanton Road
San Antonio, TX 78214

(210) 921-3800

Dr. Melissa Martinez Diaz, MD is an internist in San Antonio, TX specializing in internal medicine (adult medicine). She graduated from Universidad Autonoma de Guadalajara in 2000 and has 26 years of experience. Dr. Melissa Martinez Diaz, MD is affiliated with Gonzaba Medical Group, GMG HEALTH SYSTEMS ASSOCIATES PA and Gonzaba Medical Group.

Office Locations

720 Pleasanton Road
San Antonio, TX 78214

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Noteworthy Medicare Patient Procedures Performed by Dr. Melissa Martinez Diaz, MD in 2023

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

Top 5%

By Affordability:

blood tests

diabetes management

In 2023, Dr. Melissa Martinez Diaz, MD had a list price for blood tests, and diabetes management that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Texas. 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.

Top 10%

By Affordability:

lab tests

In 2023, Dr. Melissa Martinez Diaz, MD had a list price for lab tests that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Texas. 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.

Top 25%

By Affordability:

blood glucose self-monitoring

blood glucose tests

finger stick glucose test

glucose monitoring

glucose tests

In 2013, Dr. Melissa Martinez Diaz, MD had a list price for blood glucose self-monitoring, blood glucose tests, finger stick glucose test, glucose monitoring, and glucose tests that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Texas. 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

2013 Medicare Procedure Volume

The top procedures that Dr. Melissa Martinez Diaz, MD treated as an internist in San Antonio, TX during 2013 were blood draw and lab tests.

Volume of procedures performed by Dr. Melissa Martinez Diaz, MD for Medicare patients.

blood draw	32
doctor visit	82
lab tests	18

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Melissa Martinez Diaz, MD.

**Gender**
Male	11
Female	22

**Age**
From 65 to 74	16
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2013

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

Hypertension	70
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	39
Depression	36
Chronic Kidney Disease	42
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	58
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Melissa Martinez Diaz, MD treated as an internist in San Antonio, TX during 2014 were lab tests, blood draw, vascular procedures and diabetes management.

Volume of procedures performed by Dr. Melissa Martinez Diaz, MD for Medicare patients.

blood draw	40
diabetes management	22
doctor visit	61
lab tests	82
vascular procedures	25

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Melissa Martinez Diaz, MD.

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

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2014

The most common conditions of Medicare patients that Dr. Melissa Martinez Diaz, MD treated during 2014 were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	53
Depression	36
Chronic Kidney Disease	50
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	67
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Melissa Martinez Diaz, MD treated as an internist in San Antonio, TX during 2015 were lab tests, blood draw, vascular procedures and X-rays.

Volume of procedures performed by Dr. Melissa Martinez Diaz, MD for Medicare patients.

blood draw	41
doctor visit	65
lab tests	44
thoracic (chest) imaging	14
vascular procedures	27
X-rays	14

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Melissa Martinez Diaz, MD.

**Gender**
Male	34
Female	78

**Age**
From 65 to 74	50
From 75 to 84	28
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2015

The most common conditions of Medicare patients that Dr. Melissa Martinez Diaz, MD treated during 2015 were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	55
Depression	50
Chronic Kidney Disease	48
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	30
Chronic Obstructive Pulmonary Disease	30
Diabetes	61
Dementia	20
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Melissa Martinez Diaz, MD treated as an internist in San Antonio, TX during 2016 were blood draw.

Volume of procedures performed by Dr. Melissa Martinez Diaz, MD for Medicare patients.

blood draw	50
doctor visit	93

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Melissa Martinez Diaz, MD.

**Gender**
Male	24
Female	35

**Age**
From 65 to 74	24
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2016

The most common conditions of Medicare patients that Dr. Melissa Martinez Diaz, MD treated during 2016 were hypertension, high cholesterol, diabetes and depression.

Hypertension	75
High Cholesterol	73
Stroke	0
Ischemic Heart Disease	51
Depression	56
Chronic Kidney Disease	47
Asthma	24
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	31
Chronic Obstructive Pulmonary Disease	22
Diabetes	61
Dementia	19
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Melissa Martinez Diaz, MD treated as an internist in San Antonio, TX during 2017 were blood draw and vascular procedures.

Volume of procedures performed by Dr. Melissa Martinez Diaz, MD for Medicare patients.

blood draw	49
doctor visit	114
vascular procedures	14

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Melissa Martinez Diaz, MD.

**Gender**
Male	22
Female	42

**Age**
From 65 to 74	31
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2017

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

Hypertension	75
High Cholesterol	70
Stroke	0
Ischemic Heart Disease	44
Depression	44
Chronic Kidney Disease	50
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	19
Chronic Obstructive Pulmonary Disease	22
Diabetes	61
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Melissa Martinez Diaz, MD treated as an internist in San Antonio, TX during 2018 were blood draw and vascular procedures.

Volume of procedures performed by Dr. Melissa Martinez Diaz, MD for Medicare patients.

blood draw	68
doctor visit	91
vascular procedures	16

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Melissa Martinez Diaz, MD.

**Gender**
Male	20
Female	42

**Age**
From 65 to 74	26
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2018

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

Hypertension	74
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	24
Depression	40
Chronic Kidney Disease	42
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	19
Chronic Obstructive Pulmonary Disease	0
Diabetes	50
Dementia	26
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Melissa Martinez Diaz, MD treated as an internist in San Antonio, TX during 2019 were blood draw, lab tests and diabetes management.

Volume of procedures performed by Dr. Melissa Martinez Diaz, MD for Medicare patients.

blood draw	20
diabetes management	15
doctor visit	62
lab tests	15

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Melissa Martinez Diaz, MD.

**Gender**
Male	17
Female	36

**Age**
From 65 to 74	23
From 75 to 84	0
85 and over	0
Less than 65	15

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2019

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

Hypertension	75
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	26
Depression	38
Chronic Kidney Disease	57
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	21
Diabetes	58
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Melissa Martinez Diaz, MD treated as an internist in San Antonio, TX during 2020 were lab tests and diabetes management.

Volume of procedures performed by Dr. Melissa Martinez Diaz, MD for Medicare patients.

diabetes management	22
doctor visit	50
lab tests	22

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Melissa Martinez Diaz, MD.

**Age**
From 65 to 74	16
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2020

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

Hypertension	75
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	0
Depression	35
Chronic Kidney Disease	53
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	59
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Melissa Martinez Diaz, MD treated as an internist in San Antonio, TX during 2021 were lab tests, diabetes management, preventive care and vaccines.

Volume of procedures performed by Dr. Melissa Martinez Diaz, MD for Medicare patients.

diabetes management	33
doctor visit	88
lab tests	33
preventive care	12
vaccines	12

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Melissa Martinez Diaz, MD.

**Gender**
Male	13
Female	42

**Age**
From 65 to 74	29
From 75 to 84	13
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2021

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

Hypertension	75
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	31
Depression	31
Chronic Kidney Disease	62
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	29
Chronic Obstructive Pulmonary Disease	0
Diabetes	60
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Melissa Martinez Diaz, MD treated as an internist in San Antonio, TX during 2022 were lab tests, diabetes management, preventive care and vaccines.

Volume of procedures performed by Dr. Melissa Martinez Diaz, MD for Medicare patients.

diabetes management	31
doctor visit	103
lab tests	31
preventive care	13
vaccines	13

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Melissa Martinez Diaz, MD.

**Gender**
Male	14
Female	44

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	47
Asian	0
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2022

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

Hypertension	75
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	0
Depression	26
Chronic Kidney Disease	40
Asthma	0
Osteoperosis	0
Atrial Fibrilation	19
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	55
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Melissa Martinez Diaz, MD treated as an internist in San Antonio, TX during 2023 were lab tests and diabetes management.

Volume of procedures performed by Dr. Melissa Martinez Diaz, MD for Medicare patients.

diabetes management	37
doctor visit	77
lab tests	37

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Melissa Martinez Diaz, MD.

**Age**
From 65 to 74	0
From 75 to 84	23
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2023

The most common conditions of Medicare patients that Dr. Melissa Martinez Diaz, MD treated during 2023 were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	31
Depression	0
Chronic Kidney Disease	44
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	33
Chronic Obstructive Pulmonary Disease	23
Diabetes	54
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Melissa Martinez Diaz, MD for Medicare patients.

The highest averages for the top procedures that Dr. Melissa Martinez Diaz, MD treated as an internist in San Antonio, TX were blood draw, lab tests, diabetes management and vascular procedures.

blood draw	42
diabetes management	26
doctor visit	80
lab tests	35
preventive care	12
thoracic (chest) imaging	14
vaccines	12
vascular procedures	20
X-rays	14

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Melissa Martinez Diaz, MD.

**Gender**
Male	14
Female	31

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	0
Native American / Alaskan Native	0
Hispanic	4
Other	0

**Age**
85 and over	0
75 to 84	13
Less than 65	1
65 to 74	21

Average of Total of Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD From 2013 - 2023

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

Hypertension	74
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	32
Depression	35
Chronic Kidney Disease	48
Asthma	2
Osteoporosis	0
Heart Failure	14
Chronic Obstructive Pulmonary Disease	10
Diabetes	58
Atrial Fibrillation	1
Dementia	5
Cancer	0

Education & Training

Dr. Melissa Martinez Diaz, MD graduated from Universidad Autonoma de Guadalajara in 2000. She completed residency at Elmhurst Memorial Healthcare. She has a state license in Texas.

Medical School: Universidad Autonoma de Guadalajara (2000)

Residency: Elmhurst Memorial Healthcare (2004)

Licensed In: Texas

Affiliations & Hospitals

Dr. Melissa Martinez Diaz, MD is associated with these hospitals and organizations:

Gonzaba Medical Group

GMG HEALTH SYSTEMS ASSOCIATES PA

Gonzaba Medical Group

Ratings & Reviews

Dr. Melissa Martinez Diaz, MD has an exceptional overall rating with an average of 4.82 out of 5 stars based on 2010 ratings. We collect ratings and reviews of Dr. Melissa Martinez Diaz, MD from all over the web to help you find the right in San Antonio, TX.

4.82

Overall Rating

(2010 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Novo Nordisk Inc	$1,507 RYBELSUS $605	Victoza $226	Ozempic $224	Tresiba $132	NovoLog $51	Other $269
Lilly USA, LLC	$1,175 MOUNJARO $386	TRULICITY $368	JARDIANCE $177	HUMALOG $13	BASAGLAR $12	Other $218
AstraZeneca Pharmaceuticals LP	$460 FARXIGA $460
SANOFI-AVENTIS U.S. LLC	$394 TOUJEO $184	SOLIQUA 100/33 $174	LANTUS $36
Boehringer Ingelheim Pharmaceuticals, Inc.	$221 JARDIANCE $221
Other	$1,128 GEMTESA $245	INVOKANA $148	STEGLATRO $72	AFREZZA $65	Repatha $50	Other $549

**Types of Payments**
Food and Beverage	$4,639
Education	$246

Biography

Patients rated Dr. Melissa Diaz highly, giving her an average of 5.0 stars (out of 5). Her clinical interests include immunization (preventive vaccines), physical exams, and weight loss. She is professionally affiliated with Gonzaba Medical Group. Dr. Diaz's practice in San Antonio, TX is open to new patients as reported by Yext. She studied medicine at Autonomous University of Guadalajara Faculty of Medicine.

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Dr. Melissa Martinez Diaz, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Melissa Martinez Diaz, MD in 2023

By Affordability:

By Affordability:

By Affordability:

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Average Medicare Patient Data From 2013 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Melissa Martinez Diaz, MD From 2013 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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