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Home > AZ Providers > Allergists & Immunologists

Dr. Eiza Lyn O Ching, MD

(Dr. Eiza L. Ching, MD)

(1 Rating)

Specializes in: Allergy & Immunology and Internal Medicine (Adult Medicine)

University of Santo Tomas Faculty of Medicine and Surgery

13965 N 75th Avenue
Peoria, AZ 85381

(602) 843-2991

Dr. Eiza Lyn O Ching, MD is an allergist and immunologist in Avondale, AZ specializing in allergy & immunology and internal medicine (adult medicine). She graduated from University of Santo Tomas Faculty of Medicine and Surgery. Dr. Eiza Lyn O Ching, MD is affiliated with Deer Valley Medical Center, Honor Health and ARIZONA ASTHMA ALLERGY LEGACY PLC.

Office Locations

13026 W Rancho Santa Fe Boulevard Suite A100 Avondale Az
Avondale, AZ 85392

open_in_new

13965 N 75th Avenue
Peoria, AZ 85381

(602) 843-2991

(602) 978-1226

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Noteworthy Medicare Patient Procedures Performed by Dr. Eiza Lyn O Ching, MD in 2024

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

Top 5%

By Volume:

flu shot

immunization

In 2024, Dr. Eiza Lyn O Ching, MD performed more flu shot, and immunization (preventive vaccines) procedures for Medicare patients than 95% of providers in related specialties within Arizona.

Top 25%

By Volume:

subcutaneous allergen immunotherapy

In 2012, Dr. Eiza Lyn O Ching, MD performed more subcutaneous allergen immunotherapy (allergy shots) procedures for Medicare patients than 75% of providers in related specialties within Arizona.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2012 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	2575
doctor visit	418
immunotherapy	446
injections	446
minimally invasive procedures	2575
skin testing	2575

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2013 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	3759
doctor visit	600
immunotherapy	560
injections	560
minimally invasive procedures	3759
preventive care	19
skin testing	3759
vaccines	19

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	69
Female	167

**Ethnicity**
Non-Hispanic White	194
Black	14
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	153
From 75 to 84	48
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD in 2013

Hypertension	66
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	27
Depression	14
Chronic Kidney Disease	25
Asthma	49
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	8
Chronic Obstructive Pulmonary Disease	19
Diabetes	19
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2014 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	3946
doctor visit	708
immunotherapy	795
injections	795
minimally invasive procedures	3946
preventive care	36
skin testing	3946
vaccines	36

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	71
Female	212

**Ethnicity**
Non-Hispanic White	227
Black	15
Hispanic	27
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	180
From 75 to 84	59
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD in 2014

Hypertension	59
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	27
Depression	20
Chronic Kidney Disease	27
Asthma	55
Osteoperosis	13
Atrial Fibrilation	10
Heart Failure	8
Chronic Obstructive Pulmonary Disease	19
Diabetes	19
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2015 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	3300
doctor visit	711
immunotherapy	858
injections	858
minimally invasive procedures	3300
preventive care	28
skin testing	3300
vaccines	28

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	172
Female	432

**Ethnicity**
Non-Hispanic White	494
Black	36
Hispanic	48
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	392
From 75 to 84	142
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD in 2015

Hypertension	63
High Cholesterol	59
Stroke	5
Ischemic Heart Disease	28
Depression	20
Chronic Kidney Disease	27
Asthma	53
Osteoperosis	14
Atrial Fibrilation	6
Heart Failure	10
Chronic Obstructive Pulmonary Disease	16
Diabetes	22
Dementia	4
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2016 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	4459
breathing treatment	24
doctor visit	835
immunotherapy	1063
injections	1063
minimally invasive procedures	4459
preventive care	47
skin testing	4459
vaccines	47

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	101
Female	277

**Ethnicity**
Non-Hispanic White	318
Black	19
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	249
From 75 to 84	86
85 and over	14
Less than 65	29

Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD in 2016

Hypertension	62
High Cholesterol	57
Stroke	3
Ischemic Heart Disease	24
Depression	21
Chronic Kidney Disease	28
Asthma	53
Osteoperosis	13
Atrial Fibrilation	7
Heart Failure	8
Chronic Obstructive Pulmonary Disease	17
Diabetes	21
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2017 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	6225
breathing treatment	22
doctor visit	1084
immunotherapy	1299
injections	1299
minimally invasive procedures	6225
preventive care	75
pulmonary testing	28
skin testing	6225
vaccines	75

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	115
Female	320

**Ethnicity**
Non-Hispanic White	372
Black	19
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	277
From 75 to 84	102
85 and over	16
Less than 65	40

Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD in 2017

Hypertension	63
High Cholesterol	50
Stroke	3
Ischemic Heart Disease	24
Depression	23
Chronic Kidney Disease	29
Asthma	50
Osteoperosis	13
Atrial Fibrilation	8
Heart Failure	9
Chronic Obstructive Pulmonary Disease	17
Diabetes	24
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2018 were minimally invasive procedures, skin testing, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	7440
breathing treatment	27
doctor visit	1199
immunotherapy	1467
injections	1467
lab tests	15
minimally invasive procedures	7554
preventive care	73
pulmonary testing	14
skin testing	7440
vaccines	73

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	134
Female	377

**Ethnicity**
Non-Hispanic White	429
Black	26
Hispanic	32
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	325
From 75 to 84	127
85 and over	14
Less than 65	45

Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD in 2018

Hypertension	65
High Cholesterol	63
Stroke	2
Ischemic Heart Disease	28
Depression	20
Chronic Kidney Disease	30
Asthma	50
Osteoperosis	13
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	19
Diabetes	25
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2019 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	6906
breathing treatment	27
doctor visit	1349
immunotherapy	1635
injections	1635
minimally invasive procedures	6906
preventive care	105
pulmonary testing	25
skin testing	6906
vaccines	105

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	172
Female	447

**Ethnicity**
Non-Hispanic White	530
Black	26
Hispanic	41
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	349
From 75 to 84	207
85 and over	24
Less than 65	39

Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD in 2019

Hypertension	65
High Cholesterol	63
Stroke	2
Ischemic Heart Disease	30
Depression	22
Chronic Kidney Disease	33
Asthma	49
Osteoperosis	16
Atrial Fibrilation	7
Heart Failure	12
Chronic Obstructive Pulmonary Disease	19
Diabetes	25
Dementia	5
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2020 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	5931
doctor visit	1212
immunotherapy	1875
injections	1875
minimally invasive procedures	5931
preventive care	88
pulmonary testing	22
skin testing	5931
vaccines	88

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	161
Female	414

**Ethnicity**
Non-Hispanic White	499
Black	22
Hispanic	31
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	329
From 75 to 84	188
85 and over	24
Less than 65	34

Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD in 2020

Hypertension	64
High Cholesterol	63
Stroke	3
Ischemic Heart Disease	27
Depression	23
Chronic Kidney Disease	36
Asthma	44
Osteoperosis	15
Atrial Fibrilation	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	17
Diabetes	25
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2021 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	7187
doctor visit	1244
immunotherapy	2069
injections	2069
minimally invasive procedures	7187
preventive care	78
pulmonary testing	28
skin testing	7187
vaccines	78

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	163
Female	409

**Ethnicity**
Non-Hispanic White	484
Black	22
Hispanic	41
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	325
From 75 to 84	180
85 and over	35
Less than 65	32

Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD in 2021

Hypertension	63
High Cholesterol	66
Stroke	3
Ischemic Heart Disease	30
Depression	24
Chronic Kidney Disease	36
Asthma	46
Osteoperosis	16
Atrial Fibrilation	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	16
Diabetes	24
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2022 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	6188
doctor visit	1128
immunotherapy	2083
injections	2083
minimally invasive procedures	6188
preventive care	52
pulmonary testing	16
skin testing	6188
vaccines	52

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	198
Female	506

**Ethnicity**
Non-Hispanic White	613
Black	23
Hispanic	39
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	401
From 75 to 84	233
85 and over	36
Less than 65	34

Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD in 2022

Hypertension	68
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	23
Depression	22
Chronic Kidney Disease	26
Asthma	50
Osteoperosis	21
Atrial Fibrilation	13
Heart Failure	9
Chronic Obstructive Pulmonary Disease	20
Diabetes	25
Dementia	4
Cancer	14

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2023 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	4830
doctor visit	927
immunotherapy	2187
injections	2187
minimally invasive procedures	4830
preventive care	13
skin testing	4830
vaccines	13

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	212
Female	478

**Ethnicity**
Non-Hispanic White	601
Black	20
Hispanic	39
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	394
From 75 to 84	242
85 and over	27
Less than 65	27

Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD in 2023

Hypertension	67
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	24
Depression	22
Chronic Kidney Disease	28
Asthma	51
Osteoperosis	20
Atrial Fibrilation	12
Heart Failure	11
Chronic Obstructive Pulmonary Disease	21
Diabetes	23
Dementia	5
Cancer	15

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ during 2024 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

allergy testing	4957
doctor visit	966
immunotherapy	2211
injections	2211
minimally invasive procedures	4957
preventive care	49
skin testing	4957
vaccines	49

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	224
Female	473

**Ethnicity**
Non-Hispanic White	605
Black	21
Hispanic	44
Asian	12
Other	15
Native American	0

**Age**
From 65 to 74	372
From 75 to 84	263
85 and over	41
Less than 65	21

Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD in 2024

Hypertension	70
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	25
Depression	21
Chronic Kidney Disease	28
Asthma	51
Osteoperosis	25
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	20
Diabetes	23
Dementia	5
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Eiza Lyn O Ching, MD for Medicare patients.

The highest averages for the top procedures that Dr. Eiza Lyn O Ching, MD treated as an allergist and immunologist in Avondale, AZ were minimally invasive procedures, skin testing, allergy testing and immunotherapy.

allergy testing	5207
doctor visit	952
immunotherapy	1426
injections	1426
lab tests	15
minimally invasive procedures	5216
preventive care	55
pulmonary testing	22
skin testing	5207
vaccines	55

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Eiza Lyn O Ching, MD.

**Gender**
Male	137
Female	347

**Ethnicity**
Black / African American	20
Asian / Pacific Islander	0
Non-Hispanic White	412
Hispanic	31
Native American / Alaskan Native	0
Other	5

**Age**
75 to 84	144
85 and over	17
Less than 65	23
65 to 74	288

Average of Total of Conditions of Medicare patients treated by Dr. Eiza Lyn O Ching, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Eiza Lyn O Ching, MD treated were hypertension, high cholesterol, asthma and chronic kidney disease.

Hypertension	59
High Cholesterol	58
Stroke	3
Ischemic Heart Disease	24
Depression	19
Chronic Kidney Disease	27
Asthma	46
Osteoporosis	14
Heart Failure	9
Chronic Obstructive Pulmonary Disease	16
Diabetes	21
Atrial Fibrillation	8
Cancer	11
Dementia	5

Education & Training

Dr. Eiza Lyn O Ching, MD graduated from University of Santo Tomas Faculty of Medicine and Surgery. She completed residency at Cleveland Clinic. She is certified by the American Board of Allergy and Immunology - Allergy and Immunology and has a state license in Arizona.

Medical School: University of Santo Tomas Faculty of Medicine and Surgery

Residency: Cleveland Clinic

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

Licensed In: Arizona

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Eiza Lyn O Ching, MD appears to accept the following insurance providers: Medicare Advantage, United Healthcare, Aetna Medicare, CIGNA Commercial, Aetna Commercial, Arizona Complete Health, Mercy Care, BlueCross BlueShield Alliance and Banner Aetna.

Insurance Accepted by Provider includes:

According to our sources, Dr. Eiza Lyn O Ching, MD accepts the following insurance providers:

Medicare Advantage

United Healthcare

Aetna Medicare

CIGNA Commercial

Aetna Commercial

Arizona Complete Health

Mercy Care

BlueCross BlueShield Alliance

Banner Aetna

Ratings & Reviews

Dr. Eiza Lyn O Ching, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Eiza Lyn O Ching, MD from all over the web to help you find the right in Avondale, AZ.

Overall Rating

(1 Rating)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2018-06-17

I have been going to Dr. Ching for over two years for allergy shots. During my last yearly check-up, Dr. Ching spent a lot of time talking to me about my outdoor allergies (greatly reduced to almost no symptoms since starting allergy shots in her office), food allergies (not a great concern of mine since I don't have many food allergy reactions), and even about my sleep issues and her concern for me previously taking Benadryl nightly to help me sleep.

General Payments

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

**Payments by Company**
GlaxoSmithKline, LLC.	$2,317 NUCALA $1,607	TRELEGY ELLIPTA $533	AREXVY $43	ARNUITY $42	INCRUSE $24	Other $69
AstraZeneca Pharmaceuticals LP	$2,265 FASENRA $928	SYMBICORT $573	BREZTRI $148	TEZSPIRE $142	FARXIGA $86	Other $388
GENZYME CORPORATION	$1,370 DUPIXENT $1,349	DERMATITIS - DISEASE $21
CSL Behring	$1,314 Hizentra $607	Haegarda $483	Andembry $107	Kcentra $55	Berinert $25	Other $37
Novartis Pharmaceuticals Corporation	$1,045 XOLAIR $765	Rhapsido $124	Ilaris $11	$145
Other	$10,124 XOLAIR $876	DUPIXENT $853	CUVITRU $697	Xembify $600	Xhance $510	Other $6,588

**Types of Payments**
Food and Beverage	$17,832
Education	$431
Consulting Fee	$172

Biography

Dr. Eiza Ching is an allergy & immunology specialist. After attending the University of Santo Tomas Faculty of Medicine and Surgery for medical school, Dr. Ching completed her residency training at Cleveland Clinic. She seems to honor Aetna Medicare, Cigna, and CIGNA Plans, as well as other insurance carriers. She is professionally affiliated with Deer Valley Medical Center.