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Dr. William A. Parker Jr., MD

Accepting New Patients

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Specializes in: Allergy & Immunology

Tulane University School of Medicine (1981)

2121 East High Street
Springfield, OH 45505

1-800-999-1249

Dr. William A. Parker Jr., MD is an allergist and immunologist in Delaware, OH specializing in allergy & immunology. He graduated from Tulane University School of Medicine in 1981 and has 45 years of experience. Dr. William A. Parker Jr., MD is affiliated with Mercy Health, Kettering Health and Mercy Health - Springfield Regional Medical Center.

Office Locations

1816 Columbus Pike
Delaware, OH 43015

open_in_new

Mercy Health - Springfield Regional Medical Center

2121 East High Street
Springfield, OH 45505

1-800-999-1249

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2359 Lakeview Drive
Beavercreek, OH 45431

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6252 Wilmington Pike
Dayton, OH 45459

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8501 Troy Pike
Dayton, OH 45424

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In The News

“Here is an excellent quote by Dr. William Parker, "A synthesis of evolutionary biology, epidemiology, modern medicine, and immunology strongly suggests that biome reconstitution and maintenance...”—"Dr. Magryta: Mission Critical in five parts: 4 - Salisbury Post", Salisbury Post, May 2018

Noteworthy Medicare Patient Procedures Performed by Dr. William A. Parker Jr., MD in 2023

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

Top 25%

By Volume:

exhaled nitric oxide test

In 2012, Dr. William A. Parker Jr., MD performed more exhaled nitric oxide (eNO) test procedures for Medicare patients than 75% of providers in related specialties within Ohio.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William A. Parker Jr., MD treated as an allergist and immunologist in Delaware, OH during 2012 were skin testing, allergy testing, minimally invasive procedures and pulmonary testing.

Volume of procedures performed by Dr. William A. Parker Jr., MD for Medicare patients.

allergy testing	3687
doctor visit	169
minimally invasive procedures	3590
pulmonary testing	35
skin testing	3687

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William A. Parker Jr., MD treated as an allergist and immunologist in Delaware, OH during 2013 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. William A. Parker Jr., MD for Medicare patients.

allergy testing	3587
doctor visit	172
immunotherapy	173
injections	173
minimally invasive procedures	3500
pulmonary testing	48
skin testing	3587

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Parker Jr., MD.

**Gender**
Male	52
Female	80

**Ethnicity**
Non-Hispanic White	113
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	71
From 75 to 84	28
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2013

Hypertension	62
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	31
Depression	20
Chronic Kidney Disease	9
Asthma	33
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	10
Chronic Obstructive Pulmonary Disease	23
Diabetes	25
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William A. Parker Jr., MD treated as an allergist and immunologist in Delaware, OH during 2014 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. William A. Parker Jr., MD for Medicare patients.

allergy testing	4987
doctor visit	253
immunotherapy	710
injections	710
minimally invasive procedures	4824
pulmonary testing	75
skin testing	4987

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Parker Jr., MD.

**Gender**
Male	59
Female	136

**Ethnicity**
Non-Hispanic White	167
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	39
85 and over	18
Less than 65	39

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2014

Hypertension	63
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	28
Depression	22
Chronic Kidney Disease	14
Asthma	42
Osteoperosis	12
Atrial Fibrilation	7
Heart Failure	9
Chronic Obstructive Pulmonary Disease	17
Diabetes	25
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William A. Parker Jr., MD treated as an allergist and immunologist in Delaware, OH during 2015 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. William A. Parker Jr., MD for Medicare patients.

allergy testing	4421
doctor visit	275
immunotherapy	988
injections	988
minimally invasive procedures	4254
pulmonary testing	80
skin testing	4421

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Parker Jr., MD.

**Gender**
Male	160
Female	284

**Ethnicity**
Non-Hispanic White	400
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	256
From 75 to 84	92
85 and over	28
Less than 65	68

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2015

Hypertension	66
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	25
Depression	23
Chronic Kidney Disease	15
Asthma	36
Osteoperosis	10
Atrial Fibrilation	6
Heart Failure	11
Chronic Obstructive Pulmonary Disease	17
Diabetes	27
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William A. Parker Jr., MD treated as an allergist and immunologist in Delaware, OH during 2016 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. William A. Parker Jr., MD for Medicare patients.

allergy testing	6501
doctor visit	360
immunotherapy	1661
injections	1661
minimally invasive procedures	6220
pulmonary testing	108
skin testing	6501

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Parker Jr., MD.

**Gender**
Male	99
Female	166

**Ethnicity**
Non-Hispanic White	229
Black	21
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	145
From 75 to 84	64
85 and over	13
Less than 65	43

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2016

Hypertension	58
High Cholesterol	53
Stroke	4
Ischemic Heart Disease	20
Depression	23
Chronic Kidney Disease	17
Asthma	40
Osteoperosis	9
Atrial Fibrilation	5
Heart Failure	10
Chronic Obstructive Pulmonary Disease	13
Diabetes	26
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William A. Parker Jr., MD treated as an allergist and immunologist in Delaware, OH during 2017 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. William A. Parker Jr., MD for Medicare patients.

allergy testing	6040
doctor visit	406
immunotherapy	1590
injections	1590
minimally invasive procedures	5653
pulmonary testing	121
skin testing	6040

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Parker Jr., MD.

**Gender**
Male	96
Female	172

**Ethnicity**
Non-Hispanic White	234
Black	20
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	155
From 75 to 84	64
85 and over	16
Less than 65	33

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2017

Hypertension	66
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	25
Depression	27
Chronic Kidney Disease	24
Asthma	44
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	20
Diabetes	29
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William A. Parker Jr., MD treated as an allergist and immunologist in Delaware, OH during 2018 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. William A. Parker Jr., MD for Medicare patients.

allergy testing	4355
doctor visit	353
immunotherapy	1397
injections	1397
minimally invasive procedures	4130
pulmonary testing	111
skin testing	4355

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Parker Jr., MD.

**Gender**
Male	85
Female	145

**Ethnicity**
Non-Hispanic White	198
Black	17
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	138
From 75 to 84	51
85 and over	12
Less than 65	29

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2018

Hypertension	63
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	26
Depression	26
Chronic Kidney Disease	20
Asthma	34
Osteoperosis	10
Atrial Fibrilation	6
Heart Failure	13
Chronic Obstructive Pulmonary Disease	13
Diabetes	26
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William A. Parker Jr., MD treated as an allergist and immunologist in Delaware, OH during 2019 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. William A. Parker Jr., MD for Medicare patients.

allergy testing	4691
doctor visit	324
immunotherapy	1124
injections	1124
minimally invasive procedures	4529
pulmonary testing	99
skin testing	4691

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Parker Jr., MD.

**Gender**
Male	90
Female	140

**Ethnicity**
Non-Hispanic White	198
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	55
85 and over	15
Less than 65	30

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2019

Hypertension	60
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	23
Depression	22
Chronic Kidney Disease	20
Asthma	30
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	28
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William A. Parker Jr., MD treated as an allergist and immunologist in Delaware, OH during 2020 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. William A. Parker Jr., MD for Medicare patients.

allergy testing	3187
doctor visit	234
immunotherapy	979
injections	979
minimally invasive procedures	3104
pulmonary testing	37
skin testing	3187

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Parker Jr., MD.

**Gender**
Male	66
Female	122

**Ethnicity**
Non-Hispanic White	158
Black	14
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	116
From 75 to 84	41
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2020

Hypertension	56
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	23
Depression	21
Chronic Kidney Disease	15
Asthma	34
Osteoperosis	13
Atrial Fibrilation	9
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	22
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William A. Parker Jr., MD treated as an allergist and immunologist in Delaware, OH during 2021 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. William A. Parker Jr., MD for Medicare patients.

allergy testing	4859
doctor visit	264
immunotherapy	1118
injections	1118
minimally invasive procedures	4590
pulmonary testing	48
skin testing	4859

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Parker Jr., MD.

**Gender**
Male	81
Female	137

**Ethnicity**
Non-Hispanic White	183
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	61
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2021

Hypertension	59
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	27
Depression	23
Chronic Kidney Disease	21
Asthma	28
Osteoperosis	12
Atrial Fibrilation	8
Heart Failure	12
Chronic Obstructive Pulmonary Disease	16
Diabetes	24
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. William A. Parker Jr., MD treated as an allergist and immunologist in Delaware, OH during 2022 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. William A. Parker Jr., MD for Medicare patients.

allergy testing	1441
doctor visit	129
immunotherapy	932
injections	932
minimally invasive procedures	1335
pulmonary testing	42
skin testing	1441

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Parker Jr., MD.

**Gender**
Male	57
Female	97

**Ethnicity**
Non-Hispanic White	137
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	102
From 75 to 84	36
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2022

Hypertension	59
High Cholesterol	71
Stroke	0
Ischemic Heart Disease	17
Depression	21
Chronic Kidney Disease	12
Asthma	44
Osteoperosis	21
Atrial Fibrilation	9
Heart Failure	8
Chronic Obstructive Pulmonary Disease	18
Diabetes	25
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. William A. Parker Jr., MD for Medicare patients.

The highest averages for the top procedures that Dr. William A. Parker Jr., MD treated as an allergist and immunologist in Delaware, OH were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

allergy testing	4341
doctor visit	267
immunotherapy	1067
injections	1067
minimally invasive procedures	4157
pulmonary testing	73
skin testing	4341

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. William A. Parker Jr., MD.

**Gender**
Male	76
Female	134

**Ethnicity**
Black / African American	9
Asian / Pacific Islander	0
Non-Hispanic White	183
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	48
85 and over	9
Less than 65	22
65 to 74	122

Average of Total of Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. William A. Parker Jr., MD treated were hypertension, high cholesterol, asthma and diabetes.

Hypertension	55
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	22
Depression	20
Chronic Kidney Disease	15
Asthma	33
Osteoporosis	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	14
Diabetes	23
Atrial Fibrillation	6
Dementia	3
Cancer	8

Education & Training

Dr. William A. Parker Jr., MD graduated from Tulane University School of Medicine in 1981. He completed residency at Wilford Hall Medical Center. He is certified by the American Board of Pediatrics (Pediatrics) and has a state license in Ohio.

Medical School: Tulane University School of Medicine (1981)

Residency: Wilford Hall Medical Center (1984)

Board Certification: American Board of Pediatrics (Pediatrics)

Licensed In: Ohio

Affiliations & Hospitals

Dr. William A. Parker Jr., MD is associated with these hospitals and organizations:

Mercy Health

Kettering Health

Mercy Health - Springfield Regional Medical Center

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. William A. Parker Jr., MD appears to accept the following insurance providers: Medicaid, Payer Provider, Medicare OH and CIN-MHS NON-MSSP.

Insurance Accepted by Provider includes:

According to our sources, Dr. William A. Parker Jr., MD accepts the following insurance providers:

Medicaid

Payer Provider

Medicare OH

CIN-MHS NON-MSSP

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. William A. Parker Jr., MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Teva Pharmaceuticals USA, Inc.	$30,025 QNASL $10,990	PROAIR $6,287	QVAR $5,915	RESPICLICK $5,681	PROAIR RESPICLICK $500	Other $651
Boehringer Ingelheim Pharmaceuticals, Inc.	$21,377 SPIRIVA RESPIMAT $14,278	STIOLTO RESPIMAT $121	STIOLTO $34	$6,945
Mylan Specialty L.P.	$8,307 EpiPen $8,296	Perforomist $11
AstraZeneca Pharmaceuticals LP	$5,722 SYMBICORT $4,542	FASENRA $623	TEZSPIRE $369	AIRSUPRA $124	BREZTRI $52	Other $11
Optinose US, Inc.	$2,947 Xhance $2,947
Other	$4,648 DUPIXENT $1,267	NUCALA $648	SDG-IDD-Allergy $570	XOLAIR $478	RAGWITEK $192	Other $1,493

**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	$46,246
Food and Beverage	$8,847
Honoraria	$7,800
Consulting Fee	$5,960
Travel and Lodging	$3,968
Other	$207

Biography

Dr. William Parker works as an allergy & immunology. His areas of expertise include asthma and allergies. Dr. Parker appears to accept Medicaid insurance. He is a graduate of Tulane University School of Medicine and a graduate of Wilford Hall Medical Center's residency program. Dr. Parker is affiliated with Kettering Health and Mercy Health. His practice in Delaware, OH is open to new patients as reported by Mercy Health.

Select Year:

Dr. William A. Parker Jr., MD

Office Locations

In The News

Noteworthy Medicare Patient Procedures Performed by Dr. William A. Parker Jr., MD in 2023

By Volume:

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. William A. Parker Jr., MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Parker Jr., MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Parker Jr., 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. William A. Parker Jr., MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

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