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Home > TN Providers > Allergists & Immunologists

Dr. David Hagaman, MD

Accepting New Patients

(10 Ratings)

Specializes in: Allergy & Immunology

782 Old Hickory Boulevard Suite 203
Brentwood, TN 37027

(615) 322-5000

Dr. David Hagaman, MD is an allergist and immunologist in Brentwood, TN specializing in allergy & immunology.

Office Locations

782 Old Hickory Boulevard Suite 203
Brentwood, TN 37027

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Noteworthy Medicare Patient Procedures Performed by Dr. David Hagaman, MD in 2023

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

Top 25%

By Volume:

blood draw

phlebotomy for lab tests

In 2012, Dr. David Hagaman, MD performed more blood draw, and phlebotomy for lab tests procedures for Medicare patients than 75% of providers in related specialties within Tennessee.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. David Hagaman, MD treated as an allergist and immunologist in Brentwood, TN during 2012 were immunotherapy, injections, CT scan and X-rays.

Volume of procedures performed by Dr. David Hagaman, MD for Medicare patients.

CT scan	55
immunotherapy	98
injections	98
pulmonary testing	21
thoracic (chest) imaging	28
X-rays	28

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. David Hagaman, MD treated as an allergist and immunologist in Brentwood, TN during 2014 were minimally invasive procedures, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. David Hagaman, MD for Medicare patients.

biological response modifier (BRM) therapy	114
chemotherapy	114
doctor visit	84
minimally invasive procedures	137

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. David Hagaman, MD.

**Gender**
Male	36
Female	116

**Ethnicity**
Non-Hispanic White	140
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	73
From 75 to 84	43
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David Hagaman, MD in 2014

Hypertension	68
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	29
Depression	21
Chronic Kidney Disease	20
Asthma	14
Osteoperosis	34
Atrial Fibrilation	9
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	30
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. David Hagaman, MD treated as an allergist and immunologist in Brentwood, TN during 2015 were minimally invasive procedures, skin testing, allergy testing and chemotherapy.

Volume of procedures performed by Dr. David Hagaman, MD for Medicare patients.

allergy testing	974
biological response modifier (BRM) therapy	789
chemotherapy	789
doctor visit	1644
minimally invasive procedures	2029
skin testing	974

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. David Hagaman, MD.

**Gender**
Male	194
Female	768

**Ethnicity**
Non-Hispanic White	900
Black	40
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	456
From 75 to 84	252
85 and over	102
Less than 65	152

Conditions of Medicare patients treated by Dr. David Hagaman, MD in 2015

Hypertension	58
High Cholesterol	49
Stroke	4
Ischemic Heart Disease	21
Depression	21
Chronic Kidney Disease	19
Asthma	17
Osteoperosis	48
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	14
Diabetes	24
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. David Hagaman, MD treated as an allergist and immunologist in Brentwood, TN during 2016 were minimally invasive procedures, skin testing, allergy testing and chemotherapy.

Volume of procedures performed by Dr. David Hagaman, MD for Medicare patients.

allergy testing	847
biological response modifier (BRM) therapy	673
blood draw	13
chemotherapy	673
doctor visit	1340
minimally invasive procedures	1706
skin testing	847

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. David Hagaman, MD.

**Gender**
Male	131
Female	423

**Ethnicity**
Non-Hispanic White	507
Black	36
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	298
From 75 to 84	130
85 and over	44
Less than 65	82

Conditions of Medicare patients treated by Dr. David Hagaman, MD in 2016

Hypertension	62
High Cholesterol	51
Stroke	3
Ischemic Heart Disease	27
Depression	22
Chronic Kidney Disease	23
Asthma	27
Osteoperosis	37
Atrial Fibrilation	8
Heart Failure	11
Chronic Obstructive Pulmonary Disease	19
Diabetes	24
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. David Hagaman, MD treated as an allergist and immunologist in Brentwood, TN during 2017 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Hagaman, MD for Medicare patients.

allergy testing	1088
blood draw	16
doctor visit	233
immunotherapy	116
injections	116
minimally invasive procedures	940
skin testing	1088

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. David Hagaman, MD.

**Gender**
Male	59
Female	104

**Ethnicity**
Non-Hispanic White	150
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	106
From 75 to 84	35
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David Hagaman, MD in 2017

Hypertension	63
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	22
Depression	19
Chronic Kidney Disease	19
Asthma	39
Osteoperosis	7
Atrial Fibrilation	7
Heart Failure	0
Chronic Obstructive Pulmonary Disease	20
Diabetes	21
Dementia	0
Cancer	7

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. David Hagaman, MD treated as an allergist and immunologist in Brentwood, TN during 2018 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Hagaman, MD for Medicare patients.

allergy testing	2864
blood draw	30
doctor visit	308
immunotherapy	227
injections	227
minimally invasive procedures	2482
pulmonary testing	26
skin testing	2864

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. David Hagaman, MD.

**Gender**
Male	88
Female	157

**Ethnicity**
Non-Hispanic White	218
Black	14
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	168
From 75 to 84	48
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David Hagaman, MD in 2018

Hypertension	57
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	27
Depression	25
Chronic Kidney Disease	20
Asthma	35
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	9
Chronic Obstructive Pulmonary Disease	22
Diabetes	20
Dementia	0
Cancer	6

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. David Hagaman, MD treated as an allergist and immunologist in Brentwood, TN during 2019 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Hagaman, MD for Medicare patients.

allergy testing	3581
blood draw	51
doctor visit	417
immunotherapy	294
injections	294
minimally invasive procedures	3079
pulmonary testing	65
skin testing	3581

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. David Hagaman, MD.

**Gender**
Male	110
Female	199

**Ethnicity**
Non-Hispanic White	293
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	209
From 75 to 84	63
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David Hagaman, MD in 2019

Hypertension	56
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	28
Depression	22
Chronic Kidney Disease	21
Asthma	40
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	11
Chronic Obstructive Pulmonary Disease	25
Diabetes	20
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. David Hagaman, MD treated as an allergist and immunologist in Brentwood, TN during 2020 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Hagaman, MD for Medicare patients.

allergy testing	3410
blood draw	37
doctor visit	403
immunotherapy	281
injections	281
minimally invasive procedures	2942
pulmonary testing	34
skin testing	3410

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. David Hagaman, MD.

**Gender**
Male	117
Female	202

**Ethnicity**
Non-Hispanic White	297
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	198
From 75 to 84	80
85 and over	12
Less than 65	29

Conditions of Medicare patients treated by Dr. David Hagaman, MD in 2020

Hypertension	59
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	30
Depression	24
Chronic Kidney Disease	23
Asthma	39
Osteoperosis	8
Atrial Fibrilation	8
Heart Failure	11
Chronic Obstructive Pulmonary Disease	25
Diabetes	22
Dementia	4
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. David Hagaman, MD treated as an allergist and immunologist in Brentwood, TN during 2021 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Hagaman, MD for Medicare patients.

allergy testing	5103
blood draw	29
doctor visit	451
immunotherapy	377
injections	377
minimally invasive procedures	4377
pulmonary testing	33
skin testing	5103

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. David Hagaman, MD.

**Gender**
Male	137
Female	228

**Ethnicity**
Non-Hispanic White	330
Black	0
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	211
From 75 to 84	105
85 and over	13
Less than 65	36

Conditions of Medicare patients treated by Dr. David Hagaman, MD in 2021

Hypertension	53
High Cholesterol	46
Stroke	3
Ischemic Heart Disease	35
Depression	18
Chronic Kidney Disease	24
Asthma	33
Osteoperosis	13
Atrial Fibrilation	8
Heart Failure	11
Chronic Obstructive Pulmonary Disease	21
Diabetes	19
Dementia	3
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. David Hagaman, MD treated as an allergist and immunologist in Brentwood, TN during 2022 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Hagaman, MD for Medicare patients.

allergy testing	3975
blood draw	36
doctor visit	448
immunotherapy	342
injections	342
minimally invasive procedures	3447
skin testing	3975

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. David Hagaman, MD.

**Gender**
Male	132
Female	233

**Ethnicity**
Non-Hispanic White	334
Black	0
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	214
From 75 to 84	109
85 and over	11
Less than 65	31

Conditions of Medicare patients treated by Dr. David Hagaman, MD in 2022

Hypertension	66
High Cholesterol	70
Stroke	6
Ischemic Heart Disease	26
Depression	20
Chronic Kidney Disease	17
Asthma	42
Osteoperosis	15
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	25
Diabetes	21
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. David Hagaman, MD for Medicare patients.

The highest averages for the top procedures that Dr. David Hagaman, MD treated as an allergist and immunologist in Brentwood, TN were skin testing, allergy testing, minimally invasive procedures and chemotherapy.

allergy testing	2730
biological response modifier (BRM) therapy	525
blood draw	30
chemotherapy	525
CT scan	55
doctor visit	592
immunotherapy	247
injections	247
minimally invasive procedures	2348
pulmonary testing	35
skin testing	2730
thoracic (chest) imaging	28
X-rays	28

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. David Hagaman, MD.

**Gender**
Male	100
Female	243

**Ethnicity**
Black / African American	10
Asian / Pacific Islander	0
Non-Hispanic White	316
Native American / Alaskan Native	0
Hispanic	0
Other	2

**Age**
75 to 84	86
85 and over	18
Less than 65	33
65 to 74	193

Average of Total of Conditions of Medicare patients treated by Dr. David Hagaman, MD From 2012 - 2022

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

Hypertension	54
High Cholesterol	45
Stroke	1
Ischemic Heart Disease	24
Depression	19
Chronic Kidney Disease	18
Asthma	28
Osteoporosis	17
Heart Failure	8
Chronic Obstructive Pulmonary Disease	18
Diabetes	20
Atrial Fibrillation	8
Dementia	2
Cancer	7

Education & Training

He completed residency at Ohio State University Medical Center. He has a state license in Tennessee.

Residency: Ohio State University Medical Center

Licensed In: Tennessee

Ratings & Reviews

Dr. David Hagaman, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 10 ratings. We collect ratings and reviews of Dr. David Hagaman, MD from all over the web to help you find the right in Brentwood, TN.

Overall Rating

(10 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-02-27

Patient verified via Press Ganey

I feel so lucky to have had an appointment (for my son) with Dr. Hagaman. This was an initial appointment for my son, a young adult profoundly affected by autism. Dr. Hagaman was kind, calm, and easy to talk to. He showed interest in our helping with my son's allergy problem. Dr. Hagaman Is very knowledgeable, and is very good at answering questions. He never seemed rushed. He did a great job of explaining treatment options. He kept me involved in decisions, and his recommendations showed an understanding of factors specific to the patient (my son). Also, I appreciate that he set a follow up plan, and documented it clearly in the after visit summary.

Overall Rating: 5.0 2025-01-17

Patient verified via Press Ganey

Dr. Hagaman was very thorough and easy to talk to. Also the Telehealth appointment kept me from going into the office and being exposed to other sick people and I wasn't Completely over my sickness. Dr. Hagaman is one of my favorite doctors at Vanderbilt because he has such a warm and caring personality. He makes me feel like he really cares about his patients.

Overall Rating: 5.0 2025-06-24

Patient verified via Press Ganey

Dr. Hagaman was able to get a medicine approved to couple along with my normal infusion. His nurse had everything ready by the time we left the office. I have been working with doctor in home town for 6 trying to get the appropriate pre authorization for the medication. Dr. H is amazing & I am grateful he is on my health team.

Overall Rating: 5.0 2024-11-21

Patient verified via Press Ganey

Dr Hagaman was attentive, concerned and knowledgeable. I appreciated that he took the time to discuss my options so I felt good about the meds changes. Many thanks to the whole team.

Overall Rating: 5.0 2025-10-09

Patient verified via Press Ganey

Was extremely impressed. Provided clear explanation for symptoms related to chronic upper respiratory issues and tangible treatments. Very positive, confident and reassuring.

Overall Rating: 5.0 2025-02-14

Patient verified via Press Ganey

Dr. Hagaman and staff are incredible. Glad I chose them as my provider.

Overall Rating: 5.0 2024-12-20

Patient verified via Press Ganey

I would highly recommend Dr. Hagaman. Such. Caring physician!

Overall Rating: 5.0 2025-04-22

Patient verified via Press Ganey

Dr Hagaman is the first Dr to listen to me about my issues.

Overall Rating: 5.0 2025-10-29

Patient verified via Press Ganey

Dr. Hagaman was outstanding in every way.

Overall Rating: 5.0 2024-10-19

Patient verified via Press Ganey

Good

General Payments

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

**Payments by Company**
GENZYME CORPORATION	$174,900 DUPIXENT $174,900
Regeneron Healthcare Solutions, Inc.	$149,160 DUPIXENT $149,160
Merck Sharp & Dohme Corporation	$71,379 GRASTEK $36,927	RAGWITEK $33,694	MK-8237 $697	DULERA $61
GlaxoSmithKline, LLC.	$11,360 NUCALA $11,117	TRELEGY ELLIPTA $132	INCRUSE $72	BREO $22	ANORO ELLIPTA $17
Circassia Pharmaceuticals Inc	$3,153 NIOX VERO DEVICE $3,153
Other	$4,985 SYMBICORT $1,242	BREZTRI AEROSPHERE $875	Xyrem $609	XYWAV $367	Wakix $275	Other $1,618

**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	$313,436
Travel and Lodging	$88,915
Food and Beverage	$12,586

Research Payments

Dr. David Hagaman, MD has received 78 research payments totaling $87,438.

Biography

Dr. David Hagaman's specialty is allergy & immunology. He is affiliated with Vanderbilt University Medical Center (VUMC). Before performing his residency at Ohio State University Medical Center, Dr. Hagaman attended Ohio State University College of Medicine for medical school. Dr. Hagaman's patients gave him an average rating of 5.0 stars (out of 5). Dr. Hagaman's practice in Brentwood, TN is open to new patients as reported by Doctor.com.