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Dr. Mark Yarwood Johnson, MD

(5 Ratings)

Specializes in: Adult Gastroenterology

480 4th Avenue Suite 506
Chula Vista, CA 91910

(619) 585-0313

Dr. Mark Yarwood Johnson, MD is a gastroenterologist in Carmel, CA specializing in adult gastroenterology.

Office Locations

480 4th Avenue Suite 506 Chula Vista Ca
Carmel, CA 91910

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480 4th Avenue Suite 506
Chula Vista, CA 91910

(619) 585-0313

(619) 585-0037

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Noteworthy Medicare Patient Procedures Performed by Dr. Mark Yarwood Johnson, MD in 2024

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

Top 25%

By Volume:

inpatient hospital care

In 2012, Dr. Mark Yarwood Johnson, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of providers in related specialties within California.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2012 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

anastomosis	91
catheterization	91
diagnostic procedures	241
doctor visit	662
foreign body removal	14
gastrointestinal procedures	460
hospital care	876
inpatient care	876
minimally invasive procedures	460
preventive care	78
removal of lesion (e.g. growth)	241

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2013 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

anastomosis	130
catheterization	130
diagnostic procedures	194
doctor visit	571
gastrointestinal procedures	440
hospital care	933
inpatient care	933
minimally invasive procedures	440
preventive care	69
removal of lesion (e.g. growth)	194

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	204
Female	277

**Ethnicity**
Non-Hispanic White	155
Black	27
Hispanic	246
Asian	34
Other	0
Native American	0

**Age**
From 65 to 74	146
From 75 to 84	141
85 and over	88
Less than 65	106

Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD in 2013

Hypertension	75
High Cholesterol	61
Stroke	9
Ischemic Heart Disease	52
Depression	29
Chronic Kidney Disease	48
Asthma	9
Osteoperosis	12
Atrial Fibrilation	19
Heart Failure	46
Chronic Obstructive Pulmonary Disease	28
Diabetes	52
Dementia	26
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2014 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

anastomosis	120
catheterization	120
diagnostic procedures	213
doctor visit	507
gastrointestinal procedures	412
hospital care	905
inpatient care	905
minimally invasive procedures	412
preventive care	54
removal of lesion (e.g. growth)	213

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	200
Female	252

**Ethnicity**
Non-Hispanic White	141
Black	25
Hispanic	234
Asian	37
Other	15
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	134
85 and over	84
Less than 65	83

Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD in 2014

Hypertension	75
High Cholesterol	59
Stroke	7
Ischemic Heart Disease	46
Depression	33
Chronic Kidney Disease	44
Asthma	8
Osteoperosis	14
Atrial Fibrilation	15
Heart Failure	43
Chronic Obstructive Pulmonary Disease	28
Diabetes	53
Dementia	29
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2015 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

anastomosis	66
catheterization	66
diagnostic procedures	145
doctor visit	402
gastrointestinal procedures	273
hospital care	547
inpatient care	547
minimally invasive procedures	273
preventive care	35
removal of lesion (e.g. growth)	145

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	298
Female	388

**Ethnicity**
Non-Hispanic White	260
Black	54
Hispanic	298
Asian	52
Other	0
Native American	0

**Age**
From 65 to 74	232
From 75 to 84	222
85 and over	106
Less than 65	126

Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD in 2015

Hypertension	75
High Cholesterol	60
Stroke	10
Ischemic Heart Disease	48
Depression	31
Chronic Kidney Disease	48
Asthma	17
Osteoperosis	16
Atrial Fibrilation	17
Heart Failure	39
Chronic Obstructive Pulmonary Disease	29
Diabetes	52
Dementia	24
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2016 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

anastomosis	71
catheterization	71
diagnostic procedures	150
doctor visit	497
gastrointestinal procedures	277
hospital care	742
inpatient care	742
minimally invasive procedures	277
preventive care	56
removal of lesion (e.g. growth)	150

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	174
Female	210

**Ethnicity**
Non-Hispanic White	149
Black	29
Hispanic	161
Asian	33
Other	12
Native American	0

**Age**
From 65 to 74	153
From 75 to 84	120
85 and over	51
Less than 65	60

Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD in 2016

Hypertension	75
High Cholesterol	58
Stroke	7
Ischemic Heart Disease	42
Depression	32
Chronic Kidney Disease	51
Asthma	27
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	39
Chronic Obstructive Pulmonary Disease	26
Diabetes	49
Dementia	24
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2017 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

anastomosis	89
catheterization	89
diagnostic procedures	158
doctor visit	508
gastrointestinal procedures	316
hospital care	619
inpatient care	619
minimally invasive procedures	316
preventive care	56
removal of lesion (e.g. growth)	158

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	187
Female	205

**Ethnicity**
Non-Hispanic White	157
Black	22
Hispanic	164
Asian	34
Other	15
Native American	0

**Age**
From 65 to 74	148
From 75 to 84	110
85 and over	68
Less than 65	66

Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD in 2017

Hypertension	75
High Cholesterol	53
Stroke	7
Ischemic Heart Disease	40
Depression	30
Chronic Kidney Disease	50
Asthma	6
Osteoperosis	9
Atrial Fibrilation	17
Heart Failure	34
Chronic Obstructive Pulmonary Disease	25
Diabetes	48
Dementia	23
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2018 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

anastomosis	78
catheterization	78
diagnostic procedures	159
doctor visit	447
gastrointestinal procedures	328
hospital care	612
inpatient care	612
liver imaging	14
minimally invasive procedures	328
preventive care	68
removal of lesion (e.g. growth)	159
ultrasound (sonogram)	14

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	170
Female	215

**Ethnicity**
Non-Hispanic White	143
Black	17
Hispanic	163
Asian	42
Other	20
Native American	0

**Age**
From 65 to 74	134
From 75 to 84	118
85 and over	67
Less than 65	66

Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD in 2018

Hypertension	75
High Cholesterol	61
Stroke	10
Ischemic Heart Disease	47
Depression	32
Chronic Kidney Disease	55
Asthma	7
Osteoperosis	16
Atrial Fibrilation	16
Heart Failure	42
Chronic Obstructive Pulmonary Disease	28
Diabetes	53
Dementia	24
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2019 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

anastomosis	73
catheterization	73
diagnostic procedures	148
doctor visit	445
gastrointestinal procedures	263
hospital care	551
inpatient care	551
liver imaging	26
minimally invasive procedures	263
preventive care	42
removal of lesion (e.g. growth)	148
ultrasound (sonogram)	26

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	184
Female	194

**Ethnicity**
Non-Hispanic White	131
Black	0
Hispanic	166
Asian	45
Other	19
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	96
85 and over	63
Less than 65	61

Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD in 2019

Hypertension	75
High Cholesterol	61
Stroke	10
Ischemic Heart Disease	45
Depression	28
Chronic Kidney Disease	51
Asthma	9
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	34
Chronic Obstructive Pulmonary Disease	27
Diabetes	50
Dementia	19
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2020 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

anastomosis	61
catheterization	61
diagnostic procedures	87
doctor visit	286
gastrointestinal procedures	221
hospital care	675
inpatient care	675
liver imaging	25
minimally invasive procedures	221
preventive care	38
removal of lesion (e.g. growth)	87
ultrasound (sonogram)	25

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	133
Female	170

**Ethnicity**
Non-Hispanic White	90
Black	0
Hispanic	139
Asian	39
Other	17
Native American	0

**Age**
From 65 to 74	138
From 75 to 84	78
85 and over	52
Less than 65	35

Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD in 2020

Hypertension	75
High Cholesterol	58
Stroke	10
Ischemic Heart Disease	42
Depression	30
Chronic Kidney Disease	55
Asthma	8
Osteoperosis	12
Atrial Fibrilation	16
Heart Failure	39
Chronic Obstructive Pulmonary Disease	25
Diabetes	53
Dementia	21
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2021 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

anastomosis	46
catheterization	46
diagnostic procedures	142
doctor visit	345
gastrointestinal procedures	271
hospital care	667
inpatient care	667
liver imaging	38
minimally invasive procedures	271
preventive care	64
removal of lesion (e.g. growth)	142
ultrasound (sonogram)	38

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	167
Female	184

**Ethnicity**
Non-Hispanic White	134
Black	25
Hispanic	138
Asian	34
Other	0
Native American	0

**Age**
From 65 to 74	136
From 75 to 84	108
85 and over	64
Less than 65	43

Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD in 2021

Hypertension	74
High Cholesterol	61
Stroke	11
Ischemic Heart Disease	46
Depression	28
Chronic Kidney Disease	48
Asthma	7
Osteoperosis	12
Atrial Fibrilation	13
Heart Failure	36
Chronic Obstructive Pulmonary Disease	22
Diabetes	46
Dementia	17
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2022 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

anastomosis	38
catheterization	38
diagnostic procedures	137
doctor visit	328
gastrointestinal procedures	226
hospital care	662
inpatient care	662
liver imaging	62
minimally invasive procedures	226
preventive care	51
removal of lesion (e.g. growth)	137
ultrasound (sonogram)	62

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	178
Female	198

**Ethnicity**
Non-Hispanic White	139
Black	19
Hispanic	163
Asian	34
Other	0
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	109
85 and over	67
Less than 65	49

Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD in 2022

Hypertension	75
High Cholesterol	69
Stroke	15
Ischemic Heart Disease	35
Depression	28
Chronic Kidney Disease	36
Asthma	13
Osteoperosis	16
Atrial Fibrilation	20
Heart Failure	34
Chronic Obstructive Pulmonary Disease	26
Diabetes	45
Dementia	16
Cancer	17

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2023 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

anastomosis	18
catheterization	18
diagnostic procedures	115
doctor visit	266
gastrointestinal procedures	193
hospital care	555
inpatient care	555
liver imaging	40
minimally invasive procedures	193
preventive care	60
removal of lesion (e.g. growth)	115
ultrasound (sonogram)	40

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	150
Female	171

**Ethnicity**
Non-Hispanic White	110
Black	21
Hispanic	131
Asian	40
Other	19
Native American	0

**Age**
From 65 to 74	152
From 75 to 84	78
85 and over	60
Less than 65	31

Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD in 2023

Hypertension	75
High Cholesterol	69
Stroke	12
Ischemic Heart Disease	31
Depression	26
Chronic Kidney Disease	36
Asthma	9
Osteoperosis	17
Atrial Fibrilation	21
Heart Failure	28
Chronic Obstructive Pulmonary Disease	27
Diabetes	47
Dementia	15
Cancer	15

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA during 2024 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

diagnostic procedures	26
doctor visit	12
gastrointestinal procedures	38
hospital care	274
inpatient care	274
minimally invasive procedures	38
preventive care	12
removal of lesion (e.g. growth)	26

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	45
Female	58

**Ethnicity**
Non-Hispanic White	39
Black	0
Hispanic	44
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	50
From 75 to 84	31
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	17
Ischemic Heart Disease	43
Depression	36
Chronic Kidney Disease	41
Asthma	14
Osteoperosis	19
Atrial Fibrilation	31
Heart Failure	40
Chronic Obstructive Pulmonary Disease	24
Diabetes	50
Dementia	25
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Mark Yarwood Johnson, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark Yarwood Johnson, MD treated as a gastroenterologist in Carmel, CA were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

anastomosis	73
catheterization	73
diagnostic procedures	147
doctor visit	405
foreign body removal	14
gastrointestinal procedures	286
hospital care	662
inpatient care	662
liver imaging	34
minimally invasive procedures	286
preventive care	52
removal of lesion (e.g. growth)	147
ultrasound (sonogram)	34

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Mark Yarwood Johnson, MD.

**Gender**
Male	160
Female	194

**Ethnicity**
Black / African American	18
Asian / Pacific Islander	32
Non-Hispanic White	126
Native American / Alaskan Native	0
Hispanic	157
Other	9

**Age**
75 to 84	103
85 and over	59
Less than 65	55
65 to 74	134

Average of Total of Conditions of Medicare patients treated by Dr. Mark Yarwood Johnson, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Mark Yarwood Johnson, MD treated were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	69
High Cholesterol	57
Stroke	9
Ischemic Heart Disease	39
Depression	27
Chronic Kidney Disease	43
Asthma	10
Osteoporosis	12
Heart Failure	34
Chronic Obstructive Pulmonary Disease	24
Diabetes	46
Atrial Fibrillation	16
Dementia	20
Cancer	11

Education & Training

He has a state license in California.

Licensed In: California

Ratings & Reviews

Dr. Mark Yarwood Johnson, MD has a good overall rating with an average of 3.4 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. Mark Yarwood Johnson, MD from all over the web to help you find the right in Carmel, CA.

3.4

Overall Rating

(5 Ratings)

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General Payments

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

**Payments by Company**
Boston Scientific Corporation	$2,803 Biliary Devices $1,153	SPYBITE $980	SPYGLASS $357	SPYGLASS DIRECT VISUALIZATION SYSTEM $119	GENERAL BILIARY DEVICES $112	Other $82
Covidien LP	$1,495 GI Solutions $1,219	Barrx $276
Gilead Sciences Inc	$916 Harvoni $468	Epclusa $341	$107
AbbVie, Inc.	$806 Viekira $351	Mavyret $228	Humira $102	Lupron $97	$28
Gilead Sciences, Inc.	$572 Epclusa $465	Harvoni $73	$35
Other	$5,065 Trulance $405	MOTOFEN $350	ZEPATIER $345	AMITIZA $339	VIBERZI $308	Other $3,318