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Home > IN Providers > Allergists & Immunologists

Dr. Christina O'Relley Barnes, MD

Accepting New Patients

(8 Ratings)

Specializes in: Allergy & Immunology

Georgetown University School of Medicine (2002)

211 N EDDY STREET
SOUTH BEND, IN 46617

(574) 234-8161

Dr. Christina O'Relley Barnes, MD is an allergist and immunologist in SOUTH BEND, IN specializing in allergy & immunology. She graduated from Georgetown University School of Medicine in 2002 and has 24 years of experience. Dr. Christina O'Relley Barnes, MD is affiliated with Saint Joseph Health System.

Office Locations

211 N EDDY STREET
SOUTH BEND, IN 46617

open_in_new

700 East Beardsley Avenue Suite 105
Elkhart, IN 46514

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Noteworthy Medicare Patient Procedures Performed by Dr. Christina O'Relley Barnes, MD in 2023

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

Top 25%

By Affordability:

percutaneous allergy test

In 2012, Dr. Christina O'Relley Barnes, 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 Indiana. 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. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN during 2012 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

allergy testing	2271
doctor visit	242
immunotherapy	102
injections	102
minimally invasive procedures	2086
preventive care	26
skin testing	2271
vaccines	26

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN during 2013 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

allergy testing	1322
doctor visit	221
immunotherapy	96
injections	96
minimally invasive procedures	1290
preventive care	52
pulmonary testing	12
skin testing	1322
vaccines	52

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina O'Relley Barnes, MD.

**Gender**
Male	85
Female	176

**Ethnicity**
Non-Hispanic White	236
Black	13
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	125
From 75 to 84	81
85 and over	20
Less than 65	35

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2013

Hypertension	61
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	31
Depression	21
Chronic Kidney Disease	12
Asthma	33
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	20
Diabetes	25
Dementia	4
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN during 2014 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

allergy testing	2406
doctor visit	251
immunotherapy	69
injections	69
minimally invasive procedures	2334
preventive care	53
skin testing	2406
vaccines	53

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina O'Relley Barnes, MD.

**Gender**
Male	93
Female	191

**Ethnicity**
Non-Hispanic White	262
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	146
From 75 to 84	85
85 and over	18
Less than 65	35

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2014

Hypertension	57
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	25
Depression	18
Chronic Kidney Disease	12
Asthma	28
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	17
Diabetes	23
Dementia	5
Cancer	4

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN during 2015 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

allergy testing	1448
doctor visit	224
immunotherapy	312
injections	312
minimally invasive procedures	1448
preventive care	116
skin testing	1448
vaccines	116

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina O'Relley Barnes, MD.

**Gender**
Male	218
Female	456

**Ethnicity**
Non-Hispanic White	616
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	324
From 75 to 84	178
85 and over	66
Less than 65	106

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2015

Hypertension	59
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	25
Depression	23
Chronic Kidney Disease	15
Asthma	35
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	19
Diabetes	25
Dementia	4
Cancer	7

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN during 2016 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

allergy testing	3004
doctor visit	257
immunotherapy	261
injections	261
minimally invasive procedures	2880
preventive care	174
skin testing	3004
vaccines	174

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina O'Relley Barnes, MD.

**Gender**
Male	146
Female	288

**Ethnicity**
Non-Hispanic White	404
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	222
From 75 to 84	106
85 and over	53
Less than 65	53

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2016

Hypertension	58
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	27
Depression	21
Chronic Kidney Disease	20
Asthma	34
Osteoperosis	10
Atrial Fibrilation	8
Heart Failure	10
Chronic Obstructive Pulmonary Disease	18
Diabetes	24
Dementia	5
Cancer	6

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN during 2017 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

allergy testing	2335
doctor visit	232
immunotherapy	236
injections	236
minimally invasive procedures	2313
preventive care	153
skin testing	2335
vaccines	153

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina O'Relley Barnes, MD.

**Gender**
Male	133
Female	273

**Ethnicity**
Non-Hispanic White	376
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	216
From 75 to 84	107
85 and over	34
Less than 65	49

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2017

Hypertension	61
High Cholesterol	41
Stroke	3
Ischemic Heart Disease	27
Depression	22
Chronic Kidney Disease	23
Asthma	30
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	20
Diabetes	26
Dementia	5
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN during 2018 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

allergy testing	2327
doctor visit	241
immunotherapy	219
injections	219
minimally invasive procedures	2285
preventive care	170
skin testing	2327
vaccines	170

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina O'Relley Barnes, MD.

**Gender**
Male	143
Female	290

**Ethnicity**
Non-Hispanic White	384
Black	22
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	235
From 75 to 84	110
85 and over	40
Less than 65	48

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2018

Hypertension	60
High Cholesterol	53
Stroke	3
Ischemic Heart Disease	26
Depression	23
Chronic Kidney Disease	19
Asthma	25
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	9
Chronic Obstructive Pulmonary Disease	15
Diabetes	23
Dementia	4
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN during 2019 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

allergy testing	2879
doctor visit	285
immunotherapy	302
injections	302
minimally invasive procedures	2634
preventive care	181
skin testing	2879
vaccines	181

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina O'Relley Barnes, MD.

**Gender**
Male	151
Female	294

**Ethnicity**
Non-Hispanic White	402
Black	24
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	242
From 75 to 84	116
85 and over	52
Less than 65	35

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2019

Hypertension	61
High Cholesterol	57
Stroke	3
Ischemic Heart Disease	29
Depression	23
Chronic Kidney Disease	20
Asthma	26
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	13
Chronic Obstructive Pulmonary Disease	15
Diabetes	24
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN during 2020 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

allergy testing	1881
doctor visit	233
immunotherapy	228
injections	228
minimally invasive procedures	1701
preventive care	187
skin testing	1881
vaccines	187

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina O'Relley Barnes, MD.

**Gender**
Male	155
Female	297

**Ethnicity**
Non-Hispanic White	404
Black	0
Hispanic	0
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	269
From 75 to 84	116
85 and over	38
Less than 65	29

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2020

Hypertension	57
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	26
Depression	20
Chronic Kidney Disease	22
Asthma	23
Osteoperosis	12
Atrial Fibrilation	9
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	23
Dementia	4
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN during 2021 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

allergy testing	2281
doctor visit	272
immunotherapy	219
injections	219
minimally invasive procedures	2093
preventive care	211
skin testing	2281
vaccines	211

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina O'Relley Barnes, MD.

**Gender**
Male	269
Female	489

**Ethnicity**
Non-Hispanic White	644
Black	73
Hispanic	0
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	402
From 75 to 84	244
85 and over	64
Less than 65	48

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2021

Hypertension	52
High Cholesterol	48
Stroke	2
Ischemic Heart Disease	19
Depression	20
Chronic Kidney Disease	23
Asthma	16
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	11
Diabetes	21
Dementia	4
Cancer	7

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN during 2022 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

allergy testing	2019
doctor visit	219
immunotherapy	286
injections	286
minimally invasive procedures	1845
skin testing	2019

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina O'Relley Barnes, MD.

**Gender**
Male	162
Female	356

**Ethnicity**
Non-Hispanic White	457
Black	30
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	266
From 75 to 84	182
85 and over	37
Less than 65	33

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2022

Hypertension	72
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	20
Depression	21
Chronic Kidney Disease	14
Asthma	27
Osteoperosis	19
Atrial Fibrilation	14
Heart Failure	10
Chronic Obstructive Pulmonary Disease	12
Diabetes	22
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN during 2023 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

allergy testing	1490
doctor visit	198
immunotherapy	259
injections	259
minimally invasive procedures	1366
skin testing	1490

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina O'Relley Barnes, MD.

**Gender**
Male	126
Female	271

**Ethnicity**
Non-Hispanic White	363
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	213
From 75 to 84	135
85 and over	28
Less than 65	21

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2023

Hypertension	68
High Cholesterol	72
Stroke	4
Ischemic Heart Disease	17
Depression	20
Chronic Kidney Disease	12
Asthma	28
Osteoperosis	22
Atrial Fibrilation	16
Heart Failure	9
Chronic Obstructive Pulmonary Disease	13
Diabetes	22
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Christina O'Relley Barnes, MD for Medicare patients.

The highest averages for the top procedures that Dr. Christina O'Relley Barnes, MD treated as an allergist and immunologist in SOUTH BEND, IN were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

allergy testing	2138
doctor visit	239
immunotherapy	215
injections	215
minimally invasive procedures	2022
preventive care	132
pulmonary testing	12
skin testing	2138
vaccines	132

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Christina O'Relley Barnes, MD.

**Gender**
Female	281
Male	140

**Ethnicity**
Black / African American	17
Asian / Pacific Islander	0
Non-Hispanic White	379
Native American / Alaskan Native	0
Hispanic	0
Other	3

**Age**
85 and over	37
75 to 84	121
Less than 65	41
65 to 74	221

Average of Total of Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Christina O'Relley Barnes, MD treated were hypertension, high cholesterol, asthma and ischemic heart disease.

Hypertension	55
High Cholesterol	50
Stroke	1
Ischemic Heart Disease	22
Depression	19
Chronic Kidney Disease	16
Asthma	25
Osteoporosis	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	14
Diabetes	21
Atrial Fibrillation	9
Dementia	3
Cancer	8

Education & Training

Dr. Christina O'Relley Barnes, MD graduated from Georgetown University School of Medicine in 2002. She completed residency at University of Colorado Denver Affiliated Hospitals. She is certified by the American Board of Allergy and Immunology and has a state license in Indiana.

Medical School: Georgetown University School of Medicine (2002)

Residency: University of Colorado Denver Affiliated Hospitals (2005)

Board Certification: American Board of Allergy and Immunology

Licensed In: Indiana

Affiliations & Hospitals

Dr. Christina O'Relley Barnes, MD is associated with these hospitals and organizations:

Saint Joseph Health System

Ratings & Reviews

Dr. Christina O'Relley Barnes, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 8 ratings. We collect ratings and reviews of Dr. Christina O'Relley Barnes, MD from all over the web to help you find the right in SOUTH BEND, IN.

Overall Rating

(8 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-11-13

Patient verified via Press Ganey

I love Dr Barnes. She really listens and proposes excellent suggestions for care. She makes me a partner in determining my care and health. She has truly made a difference to my health and I am thankful for her care!!

Overall Rating: 5.0 2024-11-12

Patient verified via Press Ganey

Dr. Barnes actively listens to my child's current condition and makes sure we are comfortable with the plan moving forward. Her interactions with my young child makes her more comfortable with each visit.

Overall Rating: 5.0 2025-05-19

Patient verified via Press Ganey

Dr. Barnes was very professional and yet kind. She listened to my concerns and answered my questions. I deem this most important in a physician / patient relationship.

Overall Rating: 5.0 2026-02-05

Patient verified via Press Ganey

Dr. Barnes did a wonderful job listening to our concerns and talking us through the next steps. We were very pleased!

Overall Rating: 5.0 2024-11-16

Patient verified via Press Ganey

Dr Barnes is always so understanding and compassionate. She is truly and expert and we appreciate her care.

Overall Rating: 5.0 2025-05-16

Patient verified via Press Ganey

Dr, Barnes is kind and listens and explains things with out feeling as if you could of done better.

Overall Rating: 5.0 2025-11-20

Patient verified via Press Ganey

Dr Barnes and I had a very good conversation regarding my care

Overall Rating: 5.0 2025-11-19

Patient verified via Press Ganey

Dr Barnes and her assistant were excellent

General Payments

These charts describe general payments received by Dr. Christina O'Relley Barnes, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Genentech USA, Inc.	$347 XOLAIR $347
GlaxoSmithKline, LLC.	$296 NUCALA $188	TRELEGY ELLIPTA $107
Kaleo, Inc.	$144 Auvi-Q $144
AstraZeneca Pharmaceuticals LP	$138 AIRSUPRA $138
Shire North American Group Inc	$113 Cinryze $113
Other	$370 DUPIXENT $75	BRONCHIAL THERMOPLASTY $68	Serpent $44	TEZSPIRE $36	PALFORZIA $30	Other $117

**Types of Payments**
Food and Beverage	$1,284
Education	$124

Biography

Dr. Christina Barnes is a physician who specializes in allergy & immunology. Her areas of expertise include internal medicine. She is professionally affiliated with Saint Joseph Health System. Dr. Barnes graduated from the University of Tennessee Health Science Center College of Medicine and Georgetown University School of Medicine. Her residency was performed at a hospital affiliated with the University of Colorado Denver. She has received a 5.0 out of 5 star rating by her patients. According to Doctor.com, Dr. Barnes is currently accepting new patients at her office in South Bend, IN.

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Dr. Christina O'Relley Barnes, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Christina O'Relley Barnes, MD in 2023

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. Christina O'Relley Barnes, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Christina O'Relley Barnes, MD From 2012 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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