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Dr. Robert R. Macdonald III, MD

(Dr. Robert Riordan Mac Donald, M.D.)

(No ratings)

Specializes in: Otolaryngology (Ear, Nose, and Throat)

Washington University in St. Louis School of Medicine

4790 Executive Centre Parkway
Saint Peters, MO 63376

(636) 441-3100

Dr. Robert R. Macdonald III, MD is an otolaryngologist in Saint Peters, MO specializing in otolaryngology (ear, nose, and throat). He graduated from Washington University in St. Louis School of Medicine. Dr. Robert R. Macdonald III, MD is affiliated with BJC HealthCare, SSM Health, SSM Health St. Joseph Hospital - Lake Saint Louis, Mercy Health System and Mercy Hospital St. Louis.

Office Locations

4790 Executive Centre Parkway
Saint Peters, MO 63376

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Noteworthy Medicare Patient Procedures Performed by Dr. Robert R. Macdonald III, MD in 2023

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

Top 5%

By Volume:

minimally invasive procedures

In 2023, Dr. Robert R. Macdonald III, MD performed more minimally invasive procedures procedures for Medicare patients than 95% of providers in related specialties within Missouri.

Top 25%

By Volume:

injections

maxillofacial CT scan

By Affordability:

ear wax removal

hearing evaluation

hearing test

impacted ear wax removal

In 2012, among providers in related specialties within Missouri, Dr. Robert R. Macdonald III, MD performed more injections, and maxillofacial (jaw/face) CT scan procedures for Medicare patients than 75% of them and he also had a list price for ear wax removal, hearing evaluation, hearing test, and impacted ear wax removal that was lower than the list prices billed to Medicare by 75% of them. 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. Robert R. Macdonald III, MD treated as an otolaryngologist in Saint Peters, MO during 2012 were immunotherapy, injections, ear procedures and diagnostic procedures.

Volume of procedures performed by Dr. Robert R. Macdonald III, MD for Medicare patients.

diagnostic procedures	373
doctor visit	670
ear procedures	409
hospital care	11
immunotherapy	524
injections	524
inpatient care	11
laryngeal (voice box) procedures	45
minimally invasive procedures	45
nosebleed treatment	25

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Robert R. Macdonald III, MD treated as an otolaryngologist in Saint Peters, MO during 2013 were skin testing, allergy testing, immunotherapy and injections.

Volume of procedures performed by Dr. Robert R. Macdonald III, MD for Medicare patients.

allergy testing	1006
diagnostic procedures	401
doctor visit	740
ear procedures	422
hospital care	18
immunotherapy	609
injections	609
inpatient care	18
laryngeal (voice box) procedures	59
minimally invasive procedures	578
nosebleed treatment	16
skin testing	1006

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert R. Macdonald III, MD.

**Gender**
Male	223
Female	246

**Ethnicity**
Non-Hispanic White	444
Black	14
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	136
85 and over	69
Less than 65	57

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2013

Hypertension	67
High Cholesterol	57
Stroke	7
Ischemic Heart Disease	37
Depression	23
Chronic Kidney Disease	23
Asthma	10
Osteoperosis	6
Atrial Fibrilation	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	33
Dementia	14
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Robert R. Macdonald III, MD treated as an otolaryngologist in Saint Peters, MO during 2014 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Robert R. Macdonald III, MD for Medicare patients.

allergy testing	1716
diagnostic procedures	343
doctor visit	716
ear procedures	371
hospital care	11
immunotherapy	636
injections	636
inpatient care	11
laryngeal (voice box) procedures	48
minimally invasive procedures	927
nosebleed treatment	22
skin testing	1716

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert R. Macdonald III, MD.

**Gender**
Male	218
Female	241

**Ethnicity**
Non-Hispanic White	437
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	220
From 75 to 84	128
85 and over	55
Less than 65	56

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2014

Hypertension	66
High Cholesterol	57
Stroke	5
Ischemic Heart Disease	30
Depression	24
Chronic Kidney Disease	20
Asthma	9
Osteoperosis	10
Atrial Fibrilation	8
Heart Failure	13
Chronic Obstructive Pulmonary Disease	18
Diabetes	26
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Robert R. Macdonald III, MD treated as an otolaryngologist in Saint Peters, MO during 2015 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Robert R. Macdonald III, MD for Medicare patients.

allergy testing	1633
CT scan	21
diagnostic procedures	386
doctor visit	720
ear procedures	386
hospital care	14
immunotherapy	760
injections	760
inpatient care	14
laryngeal (voice box) procedures	52
minimally invasive procedures	883
nosebleed treatment	15
skin testing	1633

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert R. Macdonald III, MD.

**Gender**
Male	422
Female	468

**Ethnicity**
Non-Hispanic White	846
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	426
From 75 to 84	272
85 and over	120
Less than 65	72

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2015

Hypertension	68
High Cholesterol	55
Stroke	6
Ischemic Heart Disease	32
Depression	24
Chronic Kidney Disease	27
Asthma	15
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	14
Chronic Obstructive Pulmonary Disease	18
Diabetes	27
Dementia	16
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Robert R. Macdonald III, MD treated as an otolaryngologist in Saint Peters, MO during 2016 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Robert R. Macdonald III, MD for Medicare patients.

allergy testing	1087
CT scan	24
diagnostic procedures	435
doctor visit	711
ear procedures	435
hospital care	12
immunotherapy	557
injections	557
inpatient care	12
laryngeal (voice box) procedures	41
minimally invasive procedures	600
skin testing	1087

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert R. Macdonald III, MD.

**Gender**
Male	219
Female	266

**Ethnicity**
Non-Hispanic White	464
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	229
From 75 to 84	141
85 and over	68
Less than 65	47

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2016

Hypertension	69
High Cholesterol	56
Stroke	5
Ischemic Heart Disease	29
Depression	25
Chronic Kidney Disease	31
Asthma	20
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	13
Chronic Obstructive Pulmonary Disease	18
Diabetes	28
Dementia	15
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Robert R. Macdonald III, MD treated as an otolaryngologist in Saint Peters, MO during 2017 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Robert R. Macdonald III, MD for Medicare patients.

allergy testing	1720
CT scan	20
diagnostic procedures	467
doctor visit	778
ear procedures	507
immunotherapy	678
injections	678
laryngeal (voice box) procedures	51
minimally invasive procedures	934
nosebleed treatment	15
skin testing	1720

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert R. Macdonald III, MD.

**Gender**
Male	228
Female	290

**Ethnicity**
Non-Hispanic White	489
Black	13
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	232
From 75 to 84	157
85 and over	66
Less than 65	63

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2017

Hypertension	66
High Cholesterol	48
Stroke	6
Ischemic Heart Disease	29
Depression	28
Chronic Kidney Disease	32
Asthma	9
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	26
Dementia	13
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Robert R. Macdonald III, MD treated as an otolaryngologist in Saint Peters, MO during 2018 were skin testing, allergy testing, immunotherapy and injections.

Volume of procedures performed by Dr. Robert R. Macdonald III, MD for Medicare patients.

allergy testing	1086
CT scan	32
diagnostic procedures	497
doctor visit	808
ear procedures	564
immunotherapy	722
injections	722
laryngeal (voice box) procedures	50
minimally invasive procedures	615
skin testing	1086

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert R. Macdonald III, MD.

**Gender**
Male	255
Female	298

**Ethnicity**
Non-Hispanic White	518
Black	0
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	266
From 75 to 84	178
85 and over	61
Less than 65	48

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2018

Hypertension	65
High Cholesterol	53
Stroke	4
Ischemic Heart Disease	29
Depression	25
Chronic Kidney Disease	29
Asthma	8
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	16
Chronic Obstructive Pulmonary Disease	18
Diabetes	26
Dementia	13
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Robert R. Macdonald III, MD treated as an otolaryngologist in Saint Peters, MO during 2019 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Robert R. Macdonald III, MD for Medicare patients.

allergy testing	1614
CT scan	36
diagnostic procedures	597
doctor visit	919
ear procedures	765
immunotherapy	817
injections	817
laryngeal (voice box) procedures	71
minimally invasive procedures	914
nosebleed treatment	17
skin testing	1614

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert R. Macdonald III, MD.

**Gender**
Male	278
Female	341

**Ethnicity**
Non-Hispanic White	582
Black	0
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	292
From 75 to 84	199
85 and over	77
Less than 65	51

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2019

Hypertension	65
High Cholesterol	58
Stroke	6
Ischemic Heart Disease	31
Depression	24
Chronic Kidney Disease	31
Asthma	10
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	27
Dementia	15
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Robert R. Macdonald III, MD treated as an otolaryngologist in Saint Peters, MO during 2020 were skin testing, allergy testing, ear procedures and diagnostic procedures.

Volume of procedures performed by Dr. Robert R. Macdonald III, MD for Medicare patients.

allergy testing	852
CT scan	33
diagnostic procedures	499
doctor visit	723
ear procedures	593
immunotherapy	324
injections	324
laryngeal (voice box) procedures	55
minimally invasive procedures	495
skin testing	852

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert R. Macdonald III, MD.

**Gender**
Male	238
Female	281

**Ethnicity**
Non-Hispanic White	479
Black	0
Hispanic	0
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	252
From 75 to 84	171
85 and over	70
Less than 65	26

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2020

Hypertension	62
High Cholesterol	55
Stroke	5
Ischemic Heart Disease	29
Depression	21
Chronic Kidney Disease	33
Asthma	7
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	13
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Robert R. Macdonald III, MD treated as an otolaryngologist in Saint Peters, MO during 2021 were skin testing, allergy testing, minimally invasive procedures and ear procedures.

Volume of procedures performed by Dr. Robert R. Macdonald III, MD for Medicare patients.

allergy testing	1481
CT scan	54
diagnostic procedures	555
doctor visit	747
ear procedures	620
immunotherapy	287
injections	287
laryngeal (voice box) procedures	39
minimally invasive procedures	799
nosebleed treatment	14
skin testing	1481

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert R. Macdonald III, MD.

**Gender**
Male	223
Female	290

**Ethnicity**
Non-Hispanic White	487
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	256
From 75 to 84	173
85 and over	50
Less than 65	34

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2021

Hypertension	64
High Cholesterol	57
Stroke	3
Ischemic Heart Disease	24
Depression	24
Chronic Kidney Disease	28
Asthma	7
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	13
Diabetes	23
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Robert R. Macdonald III, MD treated as an otolaryngologist in Saint Peters, MO during 2022 were skin testing, allergy testing, minimally invasive procedures and ear procedures.

Volume of procedures performed by Dr. Robert R. Macdonald III, MD for Medicare patients.

allergy testing	994
CT scan	48
diagnostic procedures	352
doctor visit	839
ear procedures	427
immunotherapy	254
injections	254
laryngeal (voice box) procedures	69
minimally invasive procedures	592
nosebleed treatment	21
skin testing	994

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert R. Macdonald III, MD.

**Gender**
Male	227
Female	329

**Ethnicity**
Non-Hispanic White	519
Black	0
Hispanic	0
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	259
From 75 to 84	205
85 and over	60
Less than 65	32

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2022

Hypertension	71
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	22
Depression	23
Chronic Kidney Disease	23
Asthma	12
Osteoperosis	12
Atrial Fibrilation	18
Heart Failure	14
Chronic Obstructive Pulmonary Disease	18
Diabetes	24
Dementia	4
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Robert R. Macdonald III, MD for Medicare patients.

The highest averages for the top procedures that Dr. Robert R. Macdonald III, MD treated as an otolaryngologist in Saint Peters, MO were allergy testing, skin testing, minimally invasive procedures and immunotherapy.

allergy testing	1318
CT scan	33
diagnostic procedures	445
doctor visit	761
ear procedures	499
hospital care	13
immunotherapy	560
injections	560
inpatient care	13
laryngeal (voice box) procedures	52
minimally invasive procedures	671
nosebleed treatment	18
skin testing	1318

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Robert R. Macdonald III, MD.

**Gender**
Male	230
Female	277

**Ethnicity**
Black / African American	2
Asian / Pacific Islander	0
Non-Hispanic White	478
Native American / Alaskan Native	0
Hispanic	0
Other	5

**Age**
75 to 84	160
85 and over	63
Less than 65	44
65 to 74	239

Average of Total of Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Robert R. Macdonald III, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	60
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	26
Depression	21
Chronic Kidney Disease	25
Asthma	9
Osteoporosis	8
Heart Failure	13
Chronic Obstructive Pulmonary Disease	15
Diabetes	24
Atrial Fibrillation	11
Dementia	11
Cancer	12

Education & Training

Dr. Robert R. Macdonald III, MD graduated from Washington University in St. Louis School of Medicine. He completed residency at Barnes-Jewish Hospital. He is certified by the American Board of Otolaryngology (Head and Neck Surgery) and has a state license in Missouri.

Medical School: Washington University in St. Louis School of Medicine

Residency: Barnes-Jewish Hospital

Board Certification: American Board of Otolaryngology (Head and Neck Surgery)

Licensed In: Missouri

Affiliations & Hospitals

Dr. Robert R. Macdonald III, MD is associated with these hospitals and organizations:

BJC HealthCare

SSM Health

SSM Health St. Joseph Hospital - Lake Saint Louis

Mercy Health System

Mercy Hospital St. Louis

Ratings & Reviews

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General Payments

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

**Payments by Company**
Intersect ENT, Inc.	$1,449 Propel $1,449
Entellus Medical, Inc.	$352 XprESS Multi-Sinus Dilation System $259	XprESS Multi-Sinus Dilation Tool $93
Regeneron Healthcare Solutions, Inc.	$300 DUPIXENT $300
Novartis Pharmaceuticals Corporation	$196 XOLAIR $144	Ciprodex $52
Stryker Corporation	$181 XPRESS ENT DILATION SYSTEM $128	ENTELLUS - XPRESS ENT DILATION SYSTEM $22	Latera $18	SPIROX - LATERA $13
Other	$1,676 OTIPRIO $172	Xhance $165	XOLAIR $145	EpiPen $143	NUCALA $107	Other $944

**Types of Payments**
Food and Beverage	$3,219
Travel and Lodging	$683
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$134
Consulting Fee	$100
Education	$19

Biography

Dr. Robert Macdonald practices otolaryngology (ear, nose, and throat) in Saint Peters, MO. He is professionally affiliated with Mercy Hospital St. Louis, SSM Health St. Joseph Hospital - Lake Saint Louis, and Barnes-Jewish St. Peters Hospital. Dr. Macdonald obtained his medical school training at Washington University in St. Louis School of Medicine and performed his residency at Barnes-Jewish Hospital.

Select Year:

Dr. Robert R. Macdonald III, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Robert R. Macdonald III, MD in 2023

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By Volume:

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. Robert R. Macdonald III, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Robert R. Macdonald III, 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. Robert R. Macdonald III, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

Other Providers in Saint Peters, MO