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Home > MO Providers > Internists & Internal Medicine Doctors

Dr. Gerald Mahon, MD

(1 Rating)

Specializes in: Internal Medicine (Adult Medicine) and Geriatrics (Elderly Care)

1201 S Grand Boulevard
Saint Louis, MO 63104

(314) 977-8462

Dr. Gerald Mahon, MD is an internist in Saint Louis, MO specializing in internal medicine (adult medicine) and geriatrics (elderly care).

Office Locations

1201 S Grand Boulevard
Saint Louis, MO 63104

(314) 977-8462

(314) 977-3370

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13303 Tesson Ferry Road
Saint Louis, MO 63128

(314) 842-4744

(314) 842-3835

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gerald Mahon, MD treated as an internist in Saint Louis, MO during 2012 were nursing home care, hospital care, inpatient care and outpatient care.

Volume of procedures performed by Dr. Gerald Mahon, MD for Medicare patients.

doctor visit	316
hospital care	553
inpatient care	522
nursing home care	607
outpatient care	31

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gerald Mahon, MD treated as an internist in Saint Louis, MO during 2013 were nursing home care, hospital care, inpatient care and outpatient care.

Volume of procedures performed by Dr. Gerald Mahon, MD for Medicare patients.

doctor visit	348
hospital care	372
inpatient care	343
nursing home care	625
outpatient care	29

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Mahon, MD.

**Gender**
Male	99
Female	221

**Ethnicity**
Non-Hispanic White	286
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	44
From 75 to 84	119
85 and over	135
Less than 65	22

Conditions of Medicare patients treated by Dr. Gerald Mahon, MD in 2013

Hypertension	75
High Cholesterol	45
Stroke	10
Ischemic Heart Disease	47
Depression	48
Chronic Kidney Disease	38
Asthma	5
Osteoperosis	31
Atrial Fibrilation	20
Heart Failure	36
Chronic Obstructive Pulmonary Disease	25
Diabetes	32
Dementia	59
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gerald Mahon, MD treated as an internist in Saint Louis, MO during 2014 were nursing home care, hospital care and inpatient care.

Volume of procedures performed by Dr. Gerald Mahon, MD for Medicare patients.

doctor visit	452
hospital care	290
inpatient care	290
nursing home care	651

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Mahon, MD.

**Gender**
Male	116
Female	227

**Ethnicity**
Non-Hispanic White	313
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	59
From 75 to 84	108
85 and over	148
Less than 65	28

Conditions of Medicare patients treated by Dr. Gerald Mahon, MD in 2014

Hypertension	74
High Cholesterol	41
Stroke	12
Ischemic Heart Disease	56
Depression	47
Chronic Kidney Disease	36
Asthma	7
Osteoperosis	27
Atrial Fibrilation	22
Heart Failure	37
Chronic Obstructive Pulmonary Disease	23
Diabetes	30
Dementia	56
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gerald Mahon, MD treated as an internist in Saint Louis, MO during 2015 were nursing home care, hospital care, inpatient care and outpatient care.

Volume of procedures performed by Dr. Gerald Mahon, MD for Medicare patients.

doctor visit	446
hospital care	235
inpatient care	223
nursing home care	766
outpatient care	12

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Mahon, MD.

**Gender**
Male	230
Female	430

**Ethnicity**
Non-Hispanic White	592
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	132
From 75 to 84	198
85 and over	282
Less than 65	48

Conditions of Medicare patients treated by Dr. Gerald Mahon, MD in 2015

Hypertension	75
High Cholesterol	47
Stroke	20
Ischemic Heart Disease	50
Depression	50
Chronic Kidney Disease	38
Asthma	12
Osteoperosis	22
Atrial Fibrilation	20
Heart Failure	36
Chronic Obstructive Pulmonary Disease	21
Diabetes	30
Dementia	55
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gerald Mahon, MD treated as an internist in Saint Louis, MO during 2016 were nursing home care, hospital care, inpatient care and outpatient care.

Volume of procedures performed by Dr. Gerald Mahon, MD for Medicare patients.

doctor visit	513
hospital care	300
inpatient care	289
nursing home care	567
outpatient care	11

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Mahon, MD.

**Gender**
Male	144
Female	274

**Ethnicity**
Non-Hispanic White	350
Black	54
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	97
From 75 to 84	133
85 and over	152
Less than 65	36

Conditions of Medicare patients treated by Dr. Gerald Mahon, MD in 2016

Hypertension	75
High Cholesterol	43
Stroke	9
Ischemic Heart Disease	48
Depression	50
Chronic Kidney Disease	43
Asthma	22
Osteoperosis	19
Atrial Fibrilation	20
Heart Failure	34
Chronic Obstructive Pulmonary Disease	20
Diabetes	32
Dementia	60
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gerald Mahon, MD treated as an internist in Saint Louis, MO during 2017 were nursing home care, hospital care and inpatient care.

Volume of procedures performed by Dr. Gerald Mahon, MD for Medicare patients.

doctor visit	428
hospital care	282
inpatient care	282
nursing home care	316

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Mahon, MD.

**Gender**
Male	159
Female	258

**Ethnicity**
Non-Hispanic White	317
Black	84
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	105
From 75 to 84	140
85 and over	144
Less than 65	28

Conditions of Medicare patients treated by Dr. Gerald Mahon, MD in 2017

Hypertension	75
High Cholesterol	46
Stroke	11
Ischemic Heart Disease	53
Depression	46
Chronic Kidney Disease	47
Asthma	8
Osteoperosis	18
Atrial Fibrilation	21
Heart Failure	41
Chronic Obstructive Pulmonary Disease	25
Diabetes	32
Dementia	56
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gerald Mahon, MD treated as an internist in Saint Louis, MO during 2018 were hospital care, inpatient care, preventive care and vaccines.

Volume of procedures performed by Dr. Gerald Mahon, MD for Medicare patients.

diabetes management	33
doctor visit	265
hospital care	559
inpatient care	559
lab tests	33
preventive care	87
vaccines	54

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Mahon, MD.

**Gender**
Male	170
Female	231

**Ethnicity**
Non-Hispanic White	288
Black	96
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	97
From 75 to 84	162
85 and over	120
Less than 65	22

Conditions of Medicare patients treated by Dr. Gerald Mahon, MD in 2018

Hypertension	75
High Cholesterol	57
Stroke	14
Ischemic Heart Disease	56
Depression	38
Chronic Kidney Disease	55
Asthma	7
Osteoperosis	21
Atrial Fibrilation	20
Heart Failure	47
Chronic Obstructive Pulmonary Disease	31
Diabetes	39
Dementia	52
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gerald Mahon, MD treated as an internist in Saint Louis, MO during 2019 were nursing home care, hospital care, inpatient care and preventive care.

Volume of procedures performed by Dr. Gerald Mahon, MD for Medicare patients.

diabetes management	47
doctor visit	312
hospital care	159
inpatient care	159
lab tests	47
nursing home care	388
preventive care	110
vaccines	63

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Mahon, MD.

**Gender**
Male	185
Female	257

**Ethnicity**
Non-Hispanic White	311
Black	120
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	157
85 and over	137
Less than 65	47

Conditions of Medicare patients treated by Dr. Gerald Mahon, MD in 2019

Hypertension	75
High Cholesterol	56
Stroke	14
Ischemic Heart Disease	55
Depression	46
Chronic Kidney Disease	56
Asthma	8
Osteoperosis	17
Atrial Fibrilation	20
Heart Failure	41
Chronic Obstructive Pulmonary Disease	27
Diabetes	40
Dementia	59
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gerald Mahon, MD treated as an internist in Saint Louis, MO during 2020 were nursing home care, hospital care, inpatient care and preventive care.

Volume of procedures performed by Dr. Gerald Mahon, MD for Medicare patients.

diabetes management	26
doctor visit	163
hospital care	122
inpatient care	122
lab tests	26
nursing home care	460
preventive care	45
vaccines	19

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Mahon, MD.

**Gender**
Male	136
Female	243

**Ethnicity**
Non-Hispanic White	266
Black	96
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	92
From 75 to 84	119
85 and over	130
Less than 65	38

Conditions of Medicare patients treated by Dr. Gerald Mahon, MD in 2020

Hypertension	75
High Cholesterol	55
Stroke	11
Ischemic Heart Disease	48
Depression	42
Chronic Kidney Disease	56
Asthma	9
Osteoperosis	18
Atrial Fibrilation	17
Heart Failure	42
Chronic Obstructive Pulmonary Disease	26
Diabetes	40
Dementia	59
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gerald Mahon, MD treated as an internist in Saint Louis, MO during 2021 were nursing home care, hospital care, inpatient care and preventive care.

Volume of procedures performed by Dr. Gerald Mahon, MD for Medicare patients.

diabetes management	21
doctor visit	243
hospital care	308
inpatient care	308
lab tests	21
nursing home care	399
preventive care	43
vaccines	22

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Mahon, MD.

**Gender**
Male	170
Female	271

**Ethnicity**
Non-Hispanic White	345
Black	77
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	118
From 75 to 84	150
85 and over	151
Less than 65	22

Conditions of Medicare patients treated by Dr. Gerald Mahon, MD in 2021

Hypertension	75
High Cholesterol	59
Stroke	13
Ischemic Heart Disease	51
Depression	46
Chronic Kidney Disease	56
Asthma	7
Osteoperosis	24
Atrial Fibrilation	21
Heart Failure	44
Chronic Obstructive Pulmonary Disease	21
Diabetes	39
Dementia	56
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gerald Mahon, MD treated as an internist in Saint Louis, MO during 2022 were nursing home care, hospital care, inpatient care and lab tests.

Volume of procedures performed by Dr. Gerald Mahon, MD for Medicare patients.

diabetes management	15
doctor visit	161
hospital care	56
inpatient care	56
lab tests	15
nursing home care	134
preventive care	15

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Mahon, MD.

**Gender**
Male	78
Female	175

**Ethnicity**
Non-Hispanic White	216
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Gerald Mahon, MD in 2022

Hypertension	75
High Cholesterol	68
Stroke	13
Ischemic Heart Disease	35
Depression	42
Chronic Kidney Disease	34
Asthma	9
Osteoperosis	31
Atrial Fibrilation	30
Heart Failure	32
Chronic Obstructive Pulmonary Disease	17
Diabetes	31
Dementia	47
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gerald Mahon, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gerald Mahon, MD treated as an internist in Saint Louis, MO were nursing home care, hospital care, inpatient care and preventive care.

diabetes management	28
doctor visit	331
hospital care	294
inpatient care	286
lab tests	28
nursing home care	491
outpatient care	20
preventive care	60
vaccines	39

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gerald Mahon, MD.

**Gender**
Male	135
Female	235

**Ethnicity**
Black / African American	47
Asian / Pacific Islander	0
Non-Hispanic White	298
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	123
85 and over	137
Less than 65	26
65 to 74	76

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

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

Hypertension	68
High Cholesterol	47
Stroke	11
Ischemic Heart Disease	45
Depression	41
Chronic Kidney Disease	41
Asthma	8
Osteoporosis	20
Heart Failure	35
Chronic Obstructive Pulmonary Disease	21
Diabetes	31
Atrial Fibrillation	19
Cancer	12
Dementia	50

Education & Training

He has a state license in Missouri.

Licensed In: Missouri

Ratings & Reviews

Dr. Gerald Mahon, MD has a high overall rating with an average of 4.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Gerald Mahon, MD from all over the web to help you find the right in Saint Louis, MO.

Overall Rating

(1 Rating)

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General Payments

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

**Payments by Company**
Lilly USA, LLC	$11 TRULICITY $11

**Types of Payments**
Food and Beverage	$11

Biography

Dr. Gerald Mahon sees patients in Saint Louis, MO. His medical specialty is geriatrics (elderly care). Dr. Mahon obtained a license to practice in Missouri.