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Home > TX Providers > Allergists & Immunologists

Dr. Joseph David Diaz, MD

(No ratings)

Specializes in: Allergy & Immunology

University of Texas Medical Branch School of Medicine (1983)

2414 Babcock Road Suite 109
San Antonio, TX 78229

(210) 616-0882

Dr. Joseph David Diaz, MD is an allergist and immunologist in San Antonio, TX specializing in allergy & immunology. He graduated from University of Texas Medical Branch School of Medicine in 1983 and has 43 years of experience. Dr. Joseph David Diaz, MD is affiliated with Allergy, Asthma & Immunology Associates of South Texas and ALLERGY ASTHMA AND IMMUNOLOGY ASSOCIATES OF SOUTH TEXAS, P.A..

Office Locations

2414 Babcock Road Suite 109
San Antonio, TX 78229

(210) 616-0882

(210) 692-7833

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Noteworthy Medicare Patient Procedures Performed by Dr. Joseph David Diaz, MD in 2023

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

Top 5%

By Affordability:

CT scan

maxillofacial CT scan

In 2023, Dr. Joseph David Diaz, MD had a list price for CT scan, and maxillofacial (jaw/face) CT scan 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 25%

By Affordability:

allergen immunotherapy

subcutaneous allergen immunotherapy

In 2012, Dr. Joseph David Diaz, MD had a list price for allergen immunotherapy, allergy skin testing, allergy testing, immunotherapy, skin testing, and subcutaneous allergen immunotherapy (allergy shots) 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

2012 Medicare Procedure Volume

The top procedures that Dr. Joseph David Diaz, MD treated as an allergist and immunologist in San Antonio, TX during 2012 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Joseph David Diaz, MD for Medicare patients.

allergy testing	2504
breathing treatment	48
CT scan	43
doctor visit	413
immunotherapy	703
injections	703
minimally invasive procedures	2504
pulmonary testing	63
skin testing	2504

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Joseph David Diaz, MD treated as an allergist and immunologist in San Antonio, TX during 2013 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Joseph David Diaz, MD for Medicare patients.

allergy testing	833
breathing treatment	13
CT scan	21
doctor visit	246
immunotherapy	751
injections	751
minimally invasive procedures	833
pulmonary testing	125
skin testing	833

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph David Diaz, MD.

**Gender**
Male	63
Female	113

**Ethnicity**
Non-Hispanic White	87
Black	0
Hispanic	74
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	0
85 and over	0
Less than 65	46

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2013

Hypertension	65
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	30
Depression	18
Chronic Kidney Disease	15
Asthma	54
Osteoperosis	7
Atrial Fibrilation	0
Heart Failure	10
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	0
Cancer	6

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Joseph David Diaz, MD treated as an allergist and immunologist in San Antonio, TX during 2014 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Joseph David Diaz, MD for Medicare patients.

allergy testing	768
doctor visit	236
immunotherapy	766
injections	766
minimally invasive procedures	768
pulmonary testing	72
skin testing	768

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph David Diaz, MD.

**Gender**
Male	56
Female	113

**Ethnicity**
Non-Hispanic White	76
Black	0
Hispanic	77
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	85
From 75 to 84	0
85 and over	0
Less than 65	44

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2014

Hypertension	69
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	24
Depression	17
Chronic Kidney Disease	17
Asthma	53
Osteoperosis	7
Atrial Fibrilation	0
Heart Failure	12
Chronic Obstructive Pulmonary Disease	12
Diabetes	31
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Joseph David Diaz, MD treated as an allergist and immunologist in San Antonio, TX during 2015 were immunotherapy, injections and pulmonary testing.

Volume of procedures performed by Dr. Joseph David Diaz, MD for Medicare patients.

doctor visit	90
immunotherapy	929
injections	929
pulmonary testing	39

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph David Diaz, MD.

**Gender**
Male	90
Female	172

**Ethnicity**
Non-Hispanic White	132
Black	0
Hispanic	106
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	138
From 75 to 84	0
85 and over	0
Less than 65	66

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2015

Hypertension	66
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	20
Depression	17
Chronic Kidney Disease	18
Asthma	56
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	8
Chronic Obstructive Pulmonary Disease	16
Diabetes	26
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Joseph David Diaz, MD treated as an allergist and immunologist in San Antonio, TX during 2016 were immunotherapy, injections, skin testing and minimally invasive procedures.

Volume of procedures performed by Dr. Joseph David Diaz, MD for Medicare patients.

allergy testing	778
breathing treatment	40
doctor visit	177
immunotherapy	1081
injections	1081
minimally invasive procedures	778
pulmonary testing	70
skin testing	778

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph David Diaz, MD.

**Gender**
Male	62
Female	106

**Ethnicity**
Non-Hispanic White	80
Black	0
Hispanic	76
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	82
From 75 to 84	42
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2016

Hypertension	61
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	23
Depression	19
Chronic Kidney Disease	32
Asthma	52
Osteoperosis	11
Atrial Fibrilation	0
Heart Failure	7
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Joseph David Diaz, MD treated as an allergist and immunologist in San Antonio, TX during 2017 were immunotherapy, injections and pulmonary testing.

Volume of procedures performed by Dr. Joseph David Diaz, MD for Medicare patients.

doctor visit	165
immunotherapy	958
injections	958
pulmonary testing	66

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph David Diaz, MD.

**Gender**
Male	57
Female	113

**Ethnicity**
Non-Hispanic White	81
Black	0
Hispanic	72
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	39
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2017

Hypertension	68
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	28
Depression	19
Chronic Kidney Disease	31
Asthma	47
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	12
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	0
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Joseph David Diaz, MD treated as an allergist and immunologist in San Antonio, TX during 2018 were immunotherapy, injections, skin testing and minimally invasive procedures.

Volume of procedures performed by Dr. Joseph David Diaz, MD for Medicare patients.

allergy testing	712
breathing treatment	19
doctor visit	184
immunotherapy	907
injections	907
minimally invasive procedures	712
pulmonary testing	90
skin testing	712

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph David Diaz, MD.

**Gender**
Male	55
Female	110

**Ethnicity**
Non-Hispanic White	74
Black	0
Hispanic	76
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	80
From 75 to 84	43
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2018

Hypertension	66
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	33
Depression	24
Chronic Kidney Disease	29
Asthma	47
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	12
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	7
Cancer	7

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Joseph David Diaz, MD treated as an allergist and immunologist in San Antonio, TX during 2019 were immunotherapy, injections, pulmonary testing and breathing treatment.

Volume of procedures performed by Dr. Joseph David Diaz, MD for Medicare patients.

breathing treatment	27
doctor visit	251
immunotherapy	1092
injections	1092
preventive care	16
pulmonary testing	183
vaccines	16

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph David Diaz, MD.

**Gender**
Male	59
Female	136

**Ethnicity**
Non-Hispanic White	86
Black	0
Hispanic	88
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	97
From 75 to 84	54
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2019

Hypertension	68
High Cholesterol	63
Stroke	6
Ischemic Heart Disease	25
Depression	22
Chronic Kidney Disease	32
Asthma	50
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	13
Chronic Obstructive Pulmonary Disease	16
Diabetes	32
Dementia	0
Cancer	7

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Joseph David Diaz, MD treated as an allergist and immunologist in San Antonio, TX during 2020 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Joseph David Diaz, MD for Medicare patients.

allergy testing	1820
doctor visit	533
immunotherapy	918
injections	918
minimally invasive procedures	1478
preventive care	18
pulmonary testing	38
skin testing	1820
vaccines	18

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph David Diaz, MD.

**Gender**
Male	68
Female	138

**Ethnicity**
Non-Hispanic White	102
Black	0
Hispanic	88
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	103
From 75 to 84	64
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2020

Hypertension	67
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	32
Depression	24
Chronic Kidney Disease	33
Asthma	46
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Joseph David Diaz, MD treated as an allergist and immunologist in San Antonio, TX during 2021 were immunotherapy, injections, skin testing and minimally invasive procedures.

Volume of procedures performed by Dr. Joseph David Diaz, MD for Medicare patients.

allergy testing	780
breathing treatment	25
doctor visit	281
immunotherapy	981
injections	981
minimally invasive procedures	780
pulmonary testing	90
skin testing	780

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph David Diaz, MD.

**Gender**
Male	75
Female	147

**Ethnicity**
Non-Hispanic White	114
Black	0
Hispanic	88
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	69
85 and over	11
Less than 65	27

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2021

Hypertension	61
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	29
Depression	23
Chronic Kidney Disease	32
Asthma	45
Osteoperosis	13
Atrial Fibrilation	6
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	28
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Joseph David Diaz, MD treated as an allergist and immunologist in San Antonio, TX during 2022 were immunotherapy, injections, skin testing and minimally invasive procedures.

Volume of procedures performed by Dr. Joseph David Diaz, MD for Medicare patients.

allergy testing	706
doctor visit	233
immunotherapy	998
injections	998
minimally invasive procedures	706
pulmonary testing	80
skin testing	706

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph David Diaz, MD.

**Gender**
Male	66
Female	123

**Ethnicity**
Non-Hispanic White	96
Black	0
Hispanic	78
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	97
From 75 to 84	64
85 and over	12
Less than 65	16

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2022

Hypertension	70
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	25
Depression	17
Chronic Kidney Disease	21
Asthma	53
Osteoperosis	17
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	20
Diabetes	34
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Joseph David Diaz, MD for Medicare patients.

The highest averages for the top procedures that Dr. Joseph David Diaz, MD treated as an allergist and immunologist in San Antonio, TX were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

allergy testing	1112
CT scan	32
doctor visit	255
immunotherapy	916
injections	916
minimally invasive procedures	1069
preventive care	17
pulmonary testing	83
skin testing	1112
vaccines	17

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Joseph David Diaz, MD.

**Gender**
Male	59
Female	115

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	84
Native American / Alaskan Native	0
Hispanic	74
Other	0

**Age**
75 to 84	34
85 and over	2
Less than 65	18
65 to 74	88

Average of Total of Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Joseph David Diaz, MD treated were hypertension, high cholesterol, asthma and diabetes.

Hypertension	60
High Cholesterol	51
Stroke	1
Ischemic Heart Disease	24
Depression	18
Chronic Kidney Disease	23
Asthma	45
Osteoporosis	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Atrial Fibrillation	1
Dementia	1
Cancer	5

Education & Training

Dr. Joseph David Diaz, MD graduated from University of Texas Medical Branch School of Medicine in 1983. He has a state license in Texas.

Medical School: University of Texas Medical Branch School of Medicine (1983)

Licensed In: Texas

Affiliations & Hospitals

Dr. Joseph David Diaz, MD is associated with these hospitals and organizations:

Allergy, Asthma & Immunology Associates of South Texas

ALLERGY ASTHMA AND IMMUNOLOGY ASSOCIATES OF SOUTH TEXAS, P.A.

Ratings & Reviews

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General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$500,989 TEZSPIRE $198,189	FASENRA $176,287	AIRSUPRA $43,688	SYMBICORT $21,756	BREZTRI $460	Other $60,609
Genentech USA, Inc.	$220,531 XOLAIR $215,854	$4,677
Teva Pharmaceuticals USA, Inc.	$74,492 CINQAIR $38,087	ProAir Digihaler $15,140	AirDuo RespiClick $6,365	ArmonAir Digihaler $2,094	PROAIR $221	Other $12,585
Amgen Inc.	$69,078 TEZSPIRE $54,351	Otezla $8	$14,718
Takeda Pharmaceuticals U.S.A., Inc.	$38,126 Cinryze $37,235	TAKHZYRO $616	CUVITRU $260	MOTEGRITY $14
Other	$139,372 Cinryze $26,874	Ruconest $17,569	Orladeyo $16,084	XOLAIR $11,712	NUCALA $9,859	Other $57,274

**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	$716,763
Travel and Lodging	$142,927
Consulting Fee	$112,657
Food and Beverage	$52,106
Honoraria	$16,497
Other	$1,639

Research Payments

Dr. Joseph David Diaz, MD has received 917 research payments totaling $4,003,761.

Ownership and Interest Payments

This table describes ownership payments received by Dr. Joseph David Diaz, MD.

Medico CX Inc	2021	$55,000.00	Physician Covered Recipient	131,894 shares at $0.42 each
Medico CX Inc	2021	$20,000.00	Immediate family member	47,961 shares at $0.42 each
Medico CX Inc	2021	$20,000.00	Immediate family member	47,961 shares at $0.42 each

Biography

Dr. Joseph Diaz specializes in allergy & immunology. He graduated from the University of Texas Medical Branch School of Medicine. Dr. Diaz has received the distinction of Texas Super Doctors.

Select Year:

Dr. Joseph David Diaz, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Joseph David Diaz, MD in 2023

By Affordability:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Joseph David Diaz, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Ownership and Interest Payments

Biography

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