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Home > FL Providers > Allergists & Immunologists

Dr. Patrick J. Demarco III, MD

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Specializes in: Allergy & Immunology

MCP Hahnemann School of Medicine

11701-32 San Jose Boulevard Suite 117
Jacksonville, FL 32223

(904) 730-4870

Dr. Patrick J. Demarco III, MD is an allergist and immunologist in Jacksonville, FL specializing in allergy & immunology. He graduated from MCP Hahnemann School of Medicine. Dr. Patrick J. Demarco III, MD is affiliated with HCA Florida Healthcare, Ascension and Ascension St. Vincent's Riverside Hospital.

Office Locations

11701-32 San Jose Boulevard Suite 117
Jacksonville, FL 32223

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12276 San Jose Boulevard Suite 733
Jacksonville, FL 32223

(904) 730-4870

(904) 730-4873

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1895 Kingsley Avenue Suite 401
Orange Park, FL 32073

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2255 Dunn Avenue Suite 205
Jacksonville, FL 32218

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2804 Saint Johns Bluff Road S Suite 202
Jacksonville, FL 32246

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In The News

“Patrick DeMarco is a board certified allergist and Immunologist with Allergy & Asthma Specialists of North Florida.”—"The burning facts about fire ants", The Florida Times-Union, August 2015

Noteworthy Medicare Patient Procedures Performed by Dr. Patrick J. Demarco III, MD in 2023

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

Top 5%

By Affordability:

intradermal allergy test

In 2023, Dr. Patrick J. Demarco III, MD had a list price for intradermal allergy test that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Florida. 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 Volume:

subcutaneous allergen immunotherapy

By Affordability:

allergen immunotherapy

subcutaneous allergen immunotherapy

In 2023, among providers in related specialties within Florida, Dr. Patrick J. Demarco III, MD performed more subcutaneous allergen immunotherapy (allergy shots) procedures for Medicare patients than 90% of them and he also 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 90% of them. 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:

percutaneous allergy test

In 2012, Dr. Patrick J. Demarco III, MD had a list price for percutaneous allergy test that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Florida. 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. Patrick J. Demarco III, MD treated as an allergist and immunologist in Jacksonville, FL during 2012 were immunotherapy, injections and pulmonary testing.

Volume of procedures performed by Dr. Patrick J. Demarco III, MD for Medicare patients.

doctor visit	175
immunotherapy	736
injections	736
pulmonary testing	55

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Patrick J. Demarco III, MD treated as an allergist and immunologist in Jacksonville, FL during 2013 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Patrick J. Demarco III, MD for Medicare patients.

allergy testing	1370
doctor visit	198
immunotherapy	752
injections	752
minimally invasive procedures	1370
pulmonary testing	63
skin testing	1370

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick J. Demarco III, MD.

**Gender**
Male	36
Female	77

**Ethnicity**
Non-Hispanic White	91
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	67
From 75 to 84	23
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2013

Hypertension	71
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	33
Depression	20
Chronic Kidney Disease	16
Asthma	36
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	18
Diabetes	28
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Patrick J. Demarco III, MD treated as an allergist and immunologist in Jacksonville, FL during 2014 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Patrick J. Demarco III, MD for Medicare patients.

allergy testing	2136
doctor visit	190
immunotherapy	729
injections	729
minimally invasive procedures	1416
pulmonary testing	56
skin testing	2136

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick J. Demarco III, MD.

**Gender**
Male	39
Female	81

**Ethnicity**
Non-Hispanic White	96
Black	13
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	68
From 75 to 84	29
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2014

Hypertension	69
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	28
Depression	23
Chronic Kidney Disease	14
Asthma	33
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Patrick J. Demarco III, MD treated as an allergist and immunologist in Jacksonville, FL during 2015 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Patrick J. Demarco III, MD for Medicare patients.

allergy testing	2911
doctor visit	227
immunotherapy	1034
injections	1034
minimally invasive procedures	2006
pulmonary testing	66
skin testing	2911

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick J. Demarco III, MD.

**Gender**
Male	98
Female	214

**Ethnicity**
Non-Hispanic White	266
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	190
From 75 to 84	72
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2015

Hypertension	73
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	27
Depression	21
Chronic Kidney Disease	19
Asthma	35
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	8
Chronic Obstructive Pulmonary Disease	17
Diabetes	30
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Patrick J. Demarco III, MD treated as an allergist and immunologist in Jacksonville, FL during 2016 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Patrick J. Demarco III, MD for Medicare patients.

allergy testing	3312
doctor visit	274
immunotherapy	1473
injections	1473
minimally invasive procedures	2268
pulmonary testing	95
skin testing	3312

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick J. Demarco III, MD.

**Gender**
Male	48
Female	118

**Ethnicity**
Non-Hispanic White	136
Black	15
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	111
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2016

Hypertension	71
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	28
Depression	21
Chronic Kidney Disease	21
Asthma	42
Osteoperosis	13
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Patrick J. Demarco III, MD treated as an allergist and immunologist in Jacksonville, FL during 2017 were skin testing, allergy testing, immunotherapy and injections.

Volume of procedures performed by Dr. Patrick J. Demarco III, MD for Medicare patients.

allergy testing	2739
doctor visit	331
immunotherapy	1933
injections	1933
minimally invasive procedures	1849
pulmonary testing	128
skin testing	2739

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick J. Demarco III, MD.

**Gender**
Male	88
Female	209

**Ethnicity**
Non-Hispanic White	267
Black	17
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	192
From 75 to 84	70
85 and over	12
Less than 65	23

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2017

Hypertension	69
High Cholesterol	56
Stroke	5
Ischemic Heart Disease	37
Depression	22
Chronic Kidney Disease	22
Asthma	35
Osteoperosis	11
Atrial Fibrilation	7
Heart Failure	9
Chronic Obstructive Pulmonary Disease	15
Diabetes	28
Dementia	5
Cancer	6

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Patrick J. Demarco III, MD treated as an allergist and immunologist in Jacksonville, FL during 2018 were skin testing, allergy testing, immunotherapy and injections.

Volume of procedures performed by Dr. Patrick J. Demarco III, MD for Medicare patients.

allergy testing	3187
doctor visit	411
immunotherapy	3157
injections	3157
minimally invasive procedures	2214
pulmonary testing	154
skin testing	3187

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick J. Demarco III, MD.

**Gender**
Male	90
Female	224

**Ethnicity**
Non-Hispanic White	275
Black	19
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	189
From 75 to 84	87
85 and over	11
Less than 65	27

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2018

Hypertension	68
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	39
Depression	25
Chronic Kidney Disease	26
Asthma	32
Osteoperosis	14
Atrial Fibrilation	7
Heart Failure	9
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	5
Cancer	6

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Patrick J. Demarco III, MD treated as an allergist and immunologist in Jacksonville, FL during 2019 were skin testing, allergy testing, immunotherapy and injections.

Volume of procedures performed by Dr. Patrick J. Demarco III, MD for Medicare patients.

allergy testing	3230
doctor visit	401
immunotherapy	2665
injections	2665
minimally invasive procedures	2228
pulmonary testing	154
skin testing	3230

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick J. Demarco III, MD.

**Gender**
Male	118
Female	263

**Ethnicity**
Non-Hispanic White	318
Black	35
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	239
From 75 to 84	96
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2019

Hypertension	67
High Cholesterol	65
Stroke	6
Ischemic Heart Disease	35
Depression	24
Chronic Kidney Disease	22
Asthma	39
Osteoperosis	12
Atrial Fibrilation	7
Heart Failure	8
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	5
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Patrick J. Demarco III, MD treated as an allergist and immunologist in Jacksonville, FL during 2020 were immunotherapy, injections, skin testing and allergy testing.

Volume of procedures performed by Dr. Patrick J. Demarco III, MD for Medicare patients.

allergy testing	2183
doctor visit	293
immunotherapy	2387
injections	2387
minimally invasive procedures	1449
pulmonary testing	29
skin testing	2183

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick J. Demarco III, MD.

**Gender**
Male	88
Female	180

**Ethnicity**
Non-Hispanic White	219
Black	33
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	150
From 75 to 84	82
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2020

Hypertension	70
High Cholesterol	65
Stroke	5
Ischemic Heart Disease	41
Depression	25
Chronic Kidney Disease	26
Asthma	33
Osteoperosis	11
Atrial Fibrilation	8
Heart Failure	11
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	5
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Patrick J. Demarco III, MD treated as an allergist and immunologist in Jacksonville, FL during 2021 were immunotherapy, injections, skin testing and allergy testing.

Volume of procedures performed by Dr. Patrick J. Demarco III, MD for Medicare patients.

allergy testing	2098
doctor visit	236
immunotherapy	2320
injections	2320
minimally invasive procedures	1488
pulmonary testing	41
skin testing	2098

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick J. Demarco III, MD.

**Gender**
Male	83
Female	171

**Ethnicity**
Non-Hispanic White	206
Black	28
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	152
From 75 to 84	70
85 and over	11
Less than 65	21

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2021

Hypertension	67
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	35
Depression	23
Chronic Kidney Disease	28
Asthma	33
Osteoperosis	12
Atrial Fibrilation	8
Heart Failure	8
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	5
Cancer	7

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Patrick J. Demarco III, MD treated as an allergist and immunologist in Jacksonville, FL during 2022 were skin testing, allergy testing, immunotherapy and injections.

Volume of procedures performed by Dr. Patrick J. Demarco III, MD for Medicare patients.

allergy testing	2685
doctor visit	244
immunotherapy	2248
injections	2248
minimally invasive procedures	1830
pulmonary testing	67
skin testing	2685

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick J. Demarco III, MD.

**Gender**
Male	84
Female	175

**Ethnicity**
Non-Hispanic White	207
Black	32
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	136
From 75 to 84	87
85 and over	11
Less than 65	25

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	25
Depression	22
Chronic Kidney Disease	19
Asthma	42
Osteoperosis	17
Atrial Fibrilation	10
Heart Failure	7
Chronic Obstructive Pulmonary Disease	21
Diabetes	32
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Patrick J. Demarco III, MD for Medicare patients.

The highest averages for the top procedures that Dr. Patrick J. Demarco III, MD treated as an allergist and immunologist in Jacksonville, FL were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

allergy testing	2585
doctor visit	270
immunotherapy	1766
injections	1766
minimally invasive procedures	1811
pulmonary testing	82
skin testing	2585

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Patrick J. Demarco III, MD.

**Gender**
Male	70
Female	155

**Ethnicity**
Black / African American	17
Asian / Pacific Islander	0
Non-Hispanic White	189
Native American / Alaskan Native	0
Hispanic	0
Other	1

**Age**
75 to 84	58
85 and over	4
Less than 65	8
65 to 74	135

Average of Total of Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Patrick J. Demarco III, MD treated were hypertension, high cholesterol, asthma and ischemic heart disease.

Hypertension	63
High Cholesterol	58
Stroke	3
Ischemic Heart Disease	29
Depression	20
Chronic Kidney Disease	19
Asthma	32
Osteoporosis	8
Heart Failure	5
Chronic Obstructive Pulmonary Disease	15
Diabetes	27
Atrial Fibrillation	5
Cancer	7
Dementia	2

Education & Training

Dr. Patrick J. Demarco III, MD graduated from MCP Hahnemann School of Medicine. He completed residency at University of South Florida (USF) Affiliated Hospitals. He is certified by the The American Board of Allergy and Immunology - Allergy and Immunology and has a state license in Florida.

Medical School: MCP Hahnemann School of Medicine

Residency: University of South Florida (USF) Affiliated Hospitals

Board Certification: The American Board of Allergy and Immunology - Allergy and Immunology

Licensed In: Florida

Affiliations & Hospitals

Dr. Patrick J. Demarco III, MD is associated with these hospitals and organizations:

HCA Florida Healthcare

Ascension

Ascension St. Vincent's Riverside Hospital

Ratings & Reviews

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General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$19,890 FASENRA $15,115	SYMBICORT $693	TEZSPIRE $150	BREZTRI $37	PULMICORT FLEXHALER $34	Other $3,860
Meda Pharmaceuticals, Inc.	$13,687 Aerospan $13,597	Dymista $90
Boehringer Ingelheim Pharmaceuticals, Inc.	$13,163 SPIRIVA RESPIMAT $8,945	STIOLTO RESPIMAT $189	STIOLTO $76	Spiriva $12	$3,941
Teva Pharmaceuticals USA, Inc.	$7,111 QVAR $2,457	PROAIR $1,594	RESPICLICK $1,350	QNASL $1,059	PROAIR RESPICLICK $591	Other $59
GlaxoSmithKline, LLC.	$1,811 NUCALA $1,078	BREO $390	TRELEGY ELLIPTA $293	ADVAIR $18	BREO ELLIPTA $17	Other $16
Other	$9,524 XOLAIR $1,710	DUPIXENT $1,334	Hizentra $893	CUVITRU $512	Xhance $483	Other $4,593

**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	$36,500
Food and Beverage	$17,524
Education	$5,387
Travel and Lodging	$2,608
Honoraria	$2,600
Other	$568

Biography

Dr. Patrick Demarco is a specialist in allergy & immunology. Before performing his residency at a hospital affiliated with the University of South Florida (USF), Dr. Demarco attended MCP Hahnemann School of Medicine. His clinical interests encompass asthma and allergies. He is professionally affiliated with Ascension and HCA Florida Healthcare.

Select Year:

Dr. Patrick J. Demarco III, MD

Office Locations

In The News

Noteworthy Medicare Patient Procedures Performed by Dr. Patrick J. Demarco III, MD in 2023

By Affordability:

By Volume:

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. Patrick J. Demarco III, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick J. Demarco III, 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. Patrick J. Demarco III, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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