Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > CA Providers

Dr. Isabelle C B Moonan, MD

(Dr. Isabelle Barnard Moonan, M.D.)

(No ratings)

Specializes in: Adult Gastroenterology

23 Upper Ragsdale Drive Suite 200
Monterey, CA 93940

(831) 375-3577

Dr. Isabelle C B Moonan, MD is a gastroenterologist in Monterey, CA specializing in adult gastroenterology. Dr. Isabelle C B Moonan, MD is affiliated with MONTEREY BAY GI CONSULTANTS MEDICAL GROUP INC.

Office Locations

23 Upper Ragsdale Drive Suite 200
Monterey, CA 93940

(831) 375-3577

(831) 375-1478

open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Isabelle C B Moonan, MD in 2024

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

Top 25%

By Volume:

colonoscopy

preventive care

screening colonoscopy

In 2012, Dr. Isabelle C B Moonan, MD performed more colonoscopy, preventive care, and screening colonoscopy 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. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2012 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

diagnostic procedures	109
doctor visit	283
gastrointestinal procedures	123
minimally invasive procedures	123
preventive care	14
removal of lesion (e.g. growth)	109

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2013 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

diagnostic procedures	151
doctor visit	320
gastrointestinal procedures	198
minimally invasive procedures	198
preventive care	47
removal of lesion (e.g. growth)	151

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	37
Female	233

**Ethnicity**
Non-Hispanic White	213
Black	0
Hispanic	25
Asian	15
Other	0
Native American	0

**Age**
From 65 to 74	159
From 75 to 84	74
85 and over	20
Less than 65	17

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2013

Hypertension	58
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	20
Depression	19
Chronic Kidney Disease	12
Asthma	7
Osteoperosis	13
Atrial Fibrilation	7
Heart Failure	6
Chronic Obstructive Pulmonary Disease	9
Diabetes	21
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2014 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

diagnostic procedures	185
doctor visit	343
gastrointestinal procedures	252
minimally invasive procedures	252
preventive care	67
removal of lesion (e.g. growth)	185

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	29
Female	286

**Ethnicity**
Non-Hispanic White	250
Black	0
Hispanic	28
Asian	14
Other	0
Native American	0

**Age**
From 65 to 74	181
From 75 to 84	82
85 and over	24
Less than 65	28

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2014

Hypertension	55
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	19
Depression	22
Chronic Kidney Disease	11
Asthma	8
Osteoperosis	16
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	8
Diabetes	22
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2015 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

diagnostic procedures	214
doctor visit	323
gastrointestinal procedures	279
minimally invasive procedures	279
preventive care	65
removal of lesion (e.g. growth)	214

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	110
Female	592

**Ethnicity**
Non-Hispanic White	568
Black	0
Hispanic	68
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	414
From 75 to 84	200
85 and over	38
Less than 65	50

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2015

Hypertension	50
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	17
Depression	15
Chronic Kidney Disease	10
Asthma	9
Osteoperosis	14
Atrial Fibrilation	8
Heart Failure	4
Chronic Obstructive Pulmonary Disease	6
Diabetes	15
Dementia	3
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2016 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

diagnostic procedures	215
doctor visit	326
gastrointestinal procedures	272
minimally invasive procedures	261
preventive care	46
removal of lesion (e.g. growth)	215

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	39
Female	313

**Ethnicity**
Non-Hispanic White	272
Black	17
Hispanic	36
Asian	14
Other	13
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	86
85 and over	20
Less than 65	25

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2016

Hypertension	47
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	18
Depression	14
Chronic Kidney Disease	9
Asthma	12
Osteoperosis	11
Atrial Fibrilation	7
Heart Failure	4
Chronic Obstructive Pulmonary Disease	7
Diabetes	19
Dementia	3
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2017 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

balloon dilation	13
diagnostic procedures	241
doctor visit	340
esophageal dilation	13
gastrointestinal procedures	308
injections	11
minimally invasive procedures	308
preventive care	43
removal of lesion (e.g. growth)	241

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	47
Female	290

**Ethnicity**
Non-Hispanic White	271
Black	0
Hispanic	34
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	200
From 75 to 84	107
85 and over	14
Less than 65	16

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2017

Hypertension	51
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	20
Depression	21
Chronic Kidney Disease	13
Asthma	6
Osteoperosis	14
Atrial Fibrilation	7
Heart Failure	5
Chronic Obstructive Pulmonary Disease	6
Diabetes	19
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2018 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

diagnostic procedures	240
doctor visit	366
gastrointestinal procedures	290
injections	17
minimally invasive procedures	290
preventive care	33
removal of lesion (e.g. growth)	240

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	45
Female	284

**Ethnicity**
Non-Hispanic White	256
Black	0
Hispanic	29
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	185
From 75 to 84	106
85 and over	20
Less than 65	18

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2018

Hypertension	56
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	22
Depression	18
Chronic Kidney Disease	19
Asthma	6
Osteoperosis	15
Atrial Fibrilation	9
Heart Failure	6
Chronic Obstructive Pulmonary Disease	9
Diabetes	24
Dementia	7
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2019 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

diagnostic procedures	248
doctor visit	304
gastrointestinal procedures	333
injections	16
manometry	12
minimally invasive procedures	310
preventive care	46
removal of lesion (e.g. growth)	248

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	45
Female	288

**Ethnicity**
Non-Hispanic White	265
Black	0
Hispanic	30
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	199
From 75 to 84	97
85 and over	18
Less than 65	19

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2019

Hypertension	52
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	22
Depression	19
Chronic Kidney Disease	16
Asthma	7
Osteoperosis	15
Atrial Fibrilation	8
Heart Failure	5
Chronic Obstructive Pulmonary Disease	9
Diabetes	21
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

diagnostic procedures	240
doctor visit	321
gastrointestinal procedures	289
injections	11
minimally invasive procedures	289
preventive care	38
removal of lesion (e.g. growth)	240

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	45
Female	290

**Ethnicity**
Non-Hispanic White	266
Black	0
Hispanic	38
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	196
From 75 to 84	100
85 and over	24
Less than 65	15

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2020

Hypertension	51
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	22
Depression	21
Chronic Kidney Disease	10
Asthma	8
Osteoperosis	14
Atrial Fibrilation	7
Heart Failure	6
Chronic Obstructive Pulmonary Disease	7
Diabetes	15
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2021 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

diagnostic procedures	223
doctor visit	283
gastrointestinal procedures	266
injections	14
minimally invasive procedures	266
preventive care	29
removal of lesion (e.g. growth)	223

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	45
Female	269

**Ethnicity**
Non-Hispanic White	244
Black	0
Hispanic	30
Asian	23
Other	0
Native American	0

**Age**
From 65 to 74	187
From 75 to 84	100
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2021

Hypertension	49
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	25
Depression	22
Chronic Kidney Disease	13
Asthma	7
Osteoperosis	19
Atrial Fibrilation	6
Heart Failure	5
Chronic Obstructive Pulmonary Disease	6
Diabetes	19
Dementia	4
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2022 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

diagnostic procedures	234
doctor visit	284
gastrointestinal procedures	336
injections	16
manometry	12
minimally invasive procedures	324
preventive care	74
removal of lesion (e.g. growth)	234

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	40
Female	333

**Ethnicity**
Non-Hispanic White	280
Black	13
Hispanic	40
Asian	22
Other	18
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	133
85 and over	17
Less than 65	16

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2022

Hypertension	56
High Cholesterol	74
Stroke	4
Ischemic Heart Disease	21
Depression	18
Chronic Kidney Disease	10
Asthma	12
Osteoperosis	23
Atrial Fibrilation	11
Heart Failure	4
Chronic Obstructive Pulmonary Disease	13
Diabetes	19
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2023 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

diagnostic procedures	271
doctor visit	221
gastrointestinal procedures	361
injections	19
minimally invasive procedures	361
preventive care	71
removal of lesion (e.g. growth)	271

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	49
Female	326

**Ethnicity**
Non-Hispanic White	296
Black	0
Hispanic	38
Asian	19
Other	0
Native American	0

**Age**
From 65 to 74	202
From 75 to 84	138
85 and over	12
Less than 65	23

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2023

Hypertension	62
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	19
Depression	19
Chronic Kidney Disease	11
Asthma	11
Osteoperosis	22
Atrial Fibrilation	10
Heart Failure	4
Chronic Obstructive Pulmonary Disease	8
Diabetes	20
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA during 2024 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

diagnostic procedures	296
doctor visit	181
gastrointestinal procedures	387
injections	18
minimally invasive procedures	387
preventive care	73
removal of lesion (e.g. growth)	296

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	51
Female	328

**Ethnicity**
Non-Hispanic White	289
Black	11
Hispanic	44
Asian	22
Other	13
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	135
85 and over	12
Less than 65	11

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2024

Hypertension	62
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	22
Depression	19
Chronic Kidney Disease	9
Asthma	13
Osteoperosis	24
Atrial Fibrilation	11
Heart Failure	4
Chronic Obstructive Pulmonary Disease	8
Diabetes	19
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Isabelle C B Moonan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Isabelle C B Moonan, MD treated as a gastroenterologist in Monterey, CA were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

balloon dilation	13
diagnostic procedures	220
doctor visit	299
esophageal dilation	13
gastrointestinal procedures	284
injections	15
manometry	12
minimally invasive procedures	280
preventive care	49
removal of lesion (e.g. growth)	220

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Isabelle C B Moonan, MD.

**Gender**
Male	44
Female	294

**Ethnicity**
Black / African American	3
Asian / Pacific Islander	17
Non-Hispanic White	266
Hispanic	33
Native American / Alaskan Native	0
Other	3

**Age**
75 to 84	104
85 and over	16
Less than 65	18
65 to 74	197

Average of Total of Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Isabelle C B Moonan, MD treated were high cholesterol, hypertension, ischemic heart disease and depression.

Hypertension	49
High Cholesterol	57
Stroke	1
Ischemic Heart Disease	19
Depression	17
Chronic Kidney Disease	11
Asthma	8
Osteoporosis	15
Heart Failure	4
Chronic Obstructive Pulmonary Disease	7
Diabetes	17
Atrial Fibrillation	7
Dementia	2
Cancer	11

Education & Training

She has a state license in California.

Licensed In: California

Ratings & Reviews

Dr. Isabelle C B Moonan, MD does not have any reviews yet, be the first to leave a review of Dr. Isabelle C B Moonan, MD here: Leave a Review

(No ratings)

Leave a Review

General Payments

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

**Payments by Company**
Allergan Inc.	$161 LINZESS $161
Janssen Biotech, Inc.	$121 STELARA $68	SIMPONI $35	REMICADE $17
AbbVie Inc.	$66 Skyrizi $30	Mavyret $23	LINZESS $13
AstraZeneca Pharmaceuticals LP	$60 Nexium $60
Prometheus Laboratories Inc.	$50 Non-Covered-Product $18	$32
Other	$194 Humira $45	SUCRAID $39	LINZESS $28	EVIS EXERA III GASTROINTESTINAL VIDEOSCOPE $22	INFLECTRA $21	Other $40

**Types of Payments**
Food and Beverage	$652

Biography

Dr. Isabelle Moonan sees patients in Monterey, CA. Her medical specialty is adult gastroenterology. Dr. Moonan obtained a license to practice in California.

Select Year:

Dr. Isabelle C B Moonan, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Isabelle C B Moonan, MD in 2024

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. Isabelle C B Moonan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. Isabelle C B Moonan, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Biography

Other Providers in Monterey, CA