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Dr. Jonathon Brian Posthumus, MD

Accepting New Patients

(Jonathon Posthumus, MD)

(No ratings)

Specializes in: Adult Allergy & Immunology and Otolaryngology (Ear Nose and Throat)

UMDNJ-Robert Wood Johnson Medical School (2007)

511 Park Hill Drive
Fredericksburg, VA 22401

(540) 371-5660

Dr. Jonathon Brian Posthumus, MD is an allergist in Stafford, VA specializing in adult allergy & immunology and otolaryngology (ear nose and throat). He graduated from UMDNJ-Robert Wood Johnson Medical School in 2007 and has 19 years of experience. Dr. Jonathon Brian Posthumus, MD is affiliated with Mary Washington Healthcare, Allergy Partners and Allergy Partners of Fredericksburg.

Office Locations

12 PGA Drive Suite 101
Stafford, VA 22554

open_in_new

Mary Washington Healthcare

511 Park Hill Drive
Fredericksburg, VA 22401

(540) 371-5660

(540) 371-6920

open_in_new

In The News

“Sufferers report a wide range of symptoms and inconsistent reactions to eating meat, according to researcher Dr. Jonathon Posthumus of the University of Virginia.”—"Pork-cat syndrome case recognized in U.S.; allergy appears to be reaction to non-primate animal protein", New York Daily News, November 2011

“Dubbed "pork-cat syndrome," this food-induced allergic reaction can occur after consuming pork in people who are also allergic to cats, says Jonathon Posthumus, MD, a fellow in the division of...”—"Pork-cat syndrome a rare (but real!) allergy", NBC News, November 2011

Noteworthy Medicare Patient Procedures Performed by Dr. Jonathon Brian Posthumus, MD in 2023

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

Top 5%

By Volume:

percutaneous procedures

In 2023, Dr. Jonathon Brian Posthumus, MD performed more percutaneous procedures procedures for Medicare patients than 95% of providers in related specialties within Virginia.

Top 25%

By Volume:

injections

In 2012, Dr. Jonathon Brian Posthumus, MD performed more injections procedures for Medicare patients than 75% of providers in related specialties within Virginia.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Jonathon Brian Posthumus, MD treated as an allergist in Stafford, VA during 2012 were skin testing, minimally invasive procedures and allergy testing.

Volume of procedures performed by Dr. Jonathon Brian Posthumus, MD for Medicare patients.

allergy testing	529
doctor visit	83
minimally invasive procedures	529
skin testing	529

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Jonathon Brian Posthumus, MD treated as an allergist in Stafford, VA during 2013 were skin testing, allergy testing and minimally invasive procedures.

Volume of procedures performed by Dr. Jonathon Brian Posthumus, MD for Medicare patients.

allergy testing	2325
doctor visit	268
minimally invasive procedures	1849
skin testing	2325

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathon Brian Posthumus, MD.

**Gender**
Male	35
Female	97

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

**Age**
From 65 to 74	74
From 75 to 84	32
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2013

Hypertension	73
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	31
Depression	20
Chronic Kidney Disease	16
Asthma	38
Osteoperosis	0
Atrial Fibrilation	8
Heart Failure	10
Chronic Obstructive Pulmonary Disease	20
Diabetes	28
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Jonathon Brian Posthumus, MD treated as an allergist in Stafford, VA during 2014 were skin testing, allergy testing and minimally invasive procedures.

Volume of procedures performed by Dr. Jonathon Brian Posthumus, MD for Medicare patients.

allergy testing	1406
doctor visit	229
minimally invasive procedures	1137
skin testing	1406

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathon Brian Posthumus, MD.

**Gender**
Male	41
Female	98

**Ethnicity**
Non-Hispanic White	122
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	40
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2014

Hypertension	63
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	31
Depression	19
Chronic Kidney Disease	14
Asthma	35
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	24
Diabetes	27
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Jonathon Brian Posthumus, MD treated as an allergist in Stafford, VA during 2015 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Jonathon Brian Posthumus, MD for Medicare patients.

allergy testing	1249
doctor visit	394
immunotherapy	371
injections	371
minimally invasive procedures	990
preventive care	19
skin testing	1249
vaccines	19

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathon Brian Posthumus, MD.

**Gender**
Male	164
Female	284

**Ethnicity**
Non-Hispanic White	396
Black	28
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	256
From 75 to 84	126
85 and over	36
Less than 65	30

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2015

Hypertension	67
High Cholesterol	63
Stroke	6
Ischemic Heart Disease	33
Depression	20
Chronic Kidney Disease	13
Asthma	48
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	13
Chronic Obstructive Pulmonary Disease	18
Diabetes	23
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Jonathon Brian Posthumus, MD treated as an allergist in Stafford, VA during 2016 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Jonathon Brian Posthumus, MD for Medicare patients.

allergy testing	1069
breathing treatment	17
doctor visit	479
immunotherapy	333
injections	333
minimally invasive procedures	873
skin testing	1069

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathon Brian Posthumus, MD.

**Gender**
Male	80
Female	132

**Ethnicity**
Non-Hispanic White	178
Black	21
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	122
From 75 to 84	60
85 and over	17
Less than 65	13

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2016

Hypertension	71
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	32
Depression	18
Chronic Kidney Disease	18
Asthma	57
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	8
Chronic Obstructive Pulmonary Disease	21
Diabetes	26
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Jonathon Brian Posthumus, MD treated as an allergist in Stafford, VA during 2017 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Jonathon Brian Posthumus, MD for Medicare patients.

allergy testing	611
breathing treatment	17
doctor visit	526
immunotherapy	275
injections	275
minimally invasive procedures	611
skin testing	611

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathon Brian Posthumus, MD.

**Gender**
Male	93
Female	173

**Ethnicity**
Non-Hispanic White	226
Black	28
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	68
85 and over	25
Less than 65	19

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2017

Hypertension	67
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	31
Depression	21
Chronic Kidney Disease	20
Asthma	52
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	10
Chronic Obstructive Pulmonary Disease	23
Diabetes	26
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Jonathon Brian Posthumus, MD treated as an allergist in Stafford, VA during 2018 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Jonathon Brian Posthumus, MD for Medicare patients.

allergy testing	2125
breathing treatment	20
doctor visit	544
immunotherapy	479
injections	479
minimally invasive procedures	1534
skin testing	2125

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathon Brian Posthumus, MD.

**Gender**
Male	105
Female	199

**Ethnicity**
Non-Hispanic White	237
Black	49
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	177
From 75 to 84	82
85 and over	19
Less than 65	26

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2018

Hypertension	70
High Cholesterol	65
Stroke	5
Ischemic Heart Disease	30
Depression	20
Chronic Kidney Disease	25
Asthma	48
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	12
Chronic Obstructive Pulmonary Disease	23
Diabetes	30
Dementia	4
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Jonathon Brian Posthumus, MD treated as an allergist in Stafford, VA during 2019 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Jonathon Brian Posthumus, MD for Medicare patients.

allergy testing	3268
breathing treatment	19
doctor visit	673
immunotherapy	415
injections	415
minimally invasive procedures	2583
skin testing	3268

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathon Brian Posthumus, MD.

**Gender**
Male	106
Female	230

**Ethnicity**
Non-Hispanic White	273
Black	42
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	185
From 75 to 84	97
85 and over	21
Less than 65	33

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2019

Hypertension	68
High Cholesterol	64
Stroke	3
Ischemic Heart Disease	35
Depression	21
Chronic Kidney Disease	24
Asthma	51
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	21
Diabetes	26
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Jonathon Brian Posthumus, MD treated as an allergist in Stafford, VA during 2020 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Jonathon Brian Posthumus, MD for Medicare patients.

allergy testing	2027
doctor visit	490
immunotherapy	400
injections	400
minimally invasive procedures	1578
skin testing	2027

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathon Brian Posthumus, MD.

**Gender**
Male	87
Female	197

**Ethnicity**
Non-Hispanic White	232
Black	31
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	85
85 and over	20
Less than 65	25

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2020

Hypertension	65
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	35
Depression	18
Chronic Kidney Disease	21
Asthma	46
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	20
Diabetes	26
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Jonathon Brian Posthumus, MD treated as an allergist in Stafford, VA during 2021 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Jonathon Brian Posthumus, MD for Medicare patients.

allergy testing	1792
doctor visit	480
immunotherapy	467
injections	467
minimally invasive procedures	1471
skin testing	1792

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathon Brian Posthumus, MD.

**Gender**
Male	97
Female	188

**Ethnicity**
Non-Hispanic White	237
Black	28
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	160
From 75 to 84	86
85 and over	20
Less than 65	19

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2021

Hypertension	69
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	32
Depression	15
Chronic Kidney Disease	21
Asthma	46
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	17
Diabetes	26
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Jonathon Brian Posthumus, MD treated as an allergist in Stafford, VA during 2022 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Jonathon Brian Posthumus, MD for Medicare patients.

allergy testing	1773
doctor visit	423
immunotherapy	427
injections	427
minimally invasive procedures	1428
skin testing	1773

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathon Brian Posthumus, MD.

**Gender**
Male	118
Female	225

**Ethnicity**
Non-Hispanic White	281
Black	38
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	203
From 75 to 84	101
85 and over	17
Less than 65	22

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	25
Depression	17
Chronic Kidney Disease	14
Asthma	53
Osteoperosis	11
Atrial Fibrilation	17
Heart Failure	12
Chronic Obstructive Pulmonary Disease	20
Diabetes	29
Dementia	4
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Jonathon Brian Posthumus, MD for Medicare patients.

The highest averages for the top procedures that Dr. Jonathon Brian Posthumus, MD treated as an allergist in Stafford, VA were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

allergy testing	1652
doctor visit	417
immunotherapy	395
injections	395
minimally invasive procedures	1325
preventive care	19
skin testing	1652
vaccines	19

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Jonathon Brian Posthumus, MD.

**Gender**
Male	84
Female	165

**Ethnicity**
Black / African American	24
Asian / Pacific Islander	0
Non-Hispanic White	208
Hispanic	0
Native American / Alaskan Native	0
Other	1

**Age**
75 to 84	70
85 and over	15
Less than 65	17
65 to 74	142

Average of Total of Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Jonathon Brian Posthumus, MD treated were hypertension, high cholesterol, asthma and ischemic heart disease.

Hypertension	62
High Cholesterol	57
Stroke	2
Ischemic Heart Disease	28
Depression	17
Chronic Kidney Disease	16
Asthma	43
Osteoporosis	6
Heart Failure	10
Chronic Obstructive Pulmonary Disease	18
Diabetes	24
Atrial Fibrillation	11
Cancer	7
Dementia	4

Education & Training

Dr. Jonathon Brian Posthumus, MD graduated from UMDNJ-Robert Wood Johnson Medical School in 2007. He completed residency at University of Virginia Affiliated Hospitals. He is certified by the American Board of Internal Medicine American Board of Allergy and Immunology and has a state license in Virginia.

Medical School: UMDNJ-Robert Wood Johnson Medical School (2007)

Residency: University of Virginia Affiliated Hospitals

Board Certification: American Board of Internal Medicine American Board of Allergy and Immunology

Licensed In: Virginia

Affiliations & Hospitals

Dr. Jonathon Brian Posthumus, MD is associated with these hospitals and organizations:

Mary Washington Healthcare

Allergy Partners

Allergy Partners of Fredericksburg

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. Jonathon Brian Posthumus, MD appears to accept the following insurance providers: Most Insurances Accepted.

Insurance Accepted by Provider includes:

According to our sources, Dr. Jonathon Brian Posthumus, MD accepts the following insurance providers:

Most Insurances Accepted

Ratings & Reviews

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General Payments

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

**Payments by Company**
GlaxoSmithKline, LLC.	$1,388 NUCALA $861	TRELEGY ELLIPTA $277	BREO $123	ARNUITY $45	AREXVY $27	Other $55
AstraZeneca Pharmaceuticals LP	$1,379 SYMBICORT $542	FASENRA $373	TEZSPIRE $301	BREZTRI $89	AIRSUPRA $17	Other $57
Kaleo, Inc.	$525 Auvi-Q $525
Pfizer Inc.	$516 EUCRISA $250	CIBINQO $164	CUTAQUIG $102
Regeneron Healthcare Solutions, Inc.	$486 DUPIXENT $429	DUPIXENT DUPILUMAB INJECTION $57
Other	$4,487 XOLAIR $510	DUPIXENT $485	Xhance $264	EpiPen $187	QNASL $179	Other $2,862

**Types of Payments**
Food and Beverage	$8,664
Education	$117

Biography

Dr. Jonathon Posthumus specializes in adult allergy & immunology and otolaryngology (ear, nose, and throat). Dr. Posthumus attended UMDNJ-Robert Wood Johnson Medical School and then went on to complete his residency at a hospital affiliated with the University of Virginia. He has indicated that his clinical interests include asthma and allergies. He appears to accept Most Insurance Plans insurance. He is affiliated with Mary Washington Healthcare and Allergy Partners. He welcomes new patients at his office inStafford, VA as reported by Yext.

Select Year:

Dr. Jonathon Brian Posthumus, MD

Office Locations

In The News

Noteworthy Medicare Patient Procedures Performed by Dr. Jonathon Brian Posthumus, MD in 2023

By Volume:

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. Jonathon Brian Posthumus, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathon Brian Posthumus, 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. Jonathon Brian Posthumus, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

Other Providers in Stafford, VA