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Dr. Gary Hamamoto, MD

(9 Ratings)

Specializes in: General Surgery

23 Crossroads Drive Suite #240
Owings Mills, MD 21117

(410) 581-0700

Dr. Gary Hamamoto, MD is a general surgeon in Owings Mills, MD specializing in general surgery.

Office Locations

23 Crossroads Drive Suite #240
Owings Mills, MD 21117

(410) 581-0700

(410) 581-0705

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Noteworthy Medicare Patient Procedures Performed by Dr. Gary Hamamoto, MD in 2024

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

Top 5%

By Volume:

fecal occult blood test

screening stool guaiac test

In 2024, Dr. Gary Hamamoto, MD performed more fecal occult blood test (FOBT), and screening stool guaiac test (gFOBT) procedures for Medicare patients than 95% of providers in related specialties within Maryland.

Top 25%

By Volume:

colonoscopy

colonoscopy with biopsy

colonoscopy with lesion removal

colorectal cancer screening

gastrointestinal biopsy

gastrointestinal procedures

hernia surgery

laparoscopic inguinal hernia repair

minimally invasive procedures

removal of lesion

By Affordability:

abdominal imaging

abdominal ultrasound

lab tests

In 2012, among providers in related specialties within Maryland, Dr. Gary Hamamoto, MD performed more colonoscopy, colonoscopy with biopsy, colonoscopy with lesion removal, colorectal cancer screening, gastrointestinal biopsy, gastrointestinal procedures, hernia surgery, laparoscopic inguinal hernia repair, minimally invasive procedures, and removal of lesion (e.g. growth) procedures for Medicare patients than 75% of them and he also had a list price for abdominal imaging, abdominal ultrasound, and lab tests 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. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2012 were inpatient care, hospital care, gastrointestinal procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	44
abdominal surgery	16
abscess drainage	13
diagnostic procedures	137
doctor visit	660
gastrointestinal procedures	188
hospital care	191
incision and drainage	13
inpatient care	191
lab tests	67
minimally invasive procedures	172
minor procedures	13
open surgery	16
preventive care	102
removal of lesion (e.g. growth)	137
skin surgery	13
ultrasound (sonogram)	44

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2013 were gastrointestinal procedures, minimally invasive procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	48
abdominal surgery	21
abscess drainage	24
breast procedures	13
diagnostic procedures	131
doctor visit	699
gastrointestinal procedures	172
hospital care	129
incision and drainage	24
inpatient care	129
lab tests	100
minimally invasive procedures	151
minor procedures	24
open surgery	21
preventive care	120
removal of lesion (e.g. growth)	131
skin surgery	24
ultrasound (sonogram)	61
women's imaging	13

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Male	195
Female	370

**Ethnicity**
Non-Hispanic White	347
Black	206
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	279
From 75 to 84	153
85 and over	69
Less than 65	64

Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD in 2013

Hypertension	75
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	31
Depression	17
Chronic Kidney Disease	22
Asthma	9
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	37
Dementia	10
Cancer	22

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2014 were gastrointestinal procedures, minimally invasive procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	48
abdominal surgery	17
abscess drainage	12
diagnostic procedures	94
doctor visit	689
gastrointestinal procedures	134
hospital care	90
incision and drainage	12
inpatient care	90
lab tests	59
minimally invasive procedures	117
minor procedures	12
open surgery	17
preventive care	82
removal of lesion (e.g. growth)	94
skin surgery	12
ultrasound (sonogram)	48

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Male	168
Female	357

**Ethnicity**
Non-Hispanic White	298
Black	208
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	262
From 75 to 84	142
85 and over	63
Less than 65	58

Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD in 2014

Hypertension	75
High Cholesterol	64
Stroke	3
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	23
Asthma	7
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	10
Diabetes	40
Dementia	8
Cancer	27

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2015 were gastrointestinal procedures, minimally invasive procedures, preventive care and diagnostic procedures.

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	53
abdominal surgery	13
abscess drainage	24
diagnostic procedures	81
doctor visit	680
gastrointestinal procedures	121
hospital care	54
incision and drainage	24
inpatient care	54
lab tests	63
minimally invasive procedures	108
minor procedures	24
open surgery	13
preventive care	90
removal of lesion (e.g. growth)	81
skin surgery	24
ultrasound (sonogram)	53

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Male	336
Female	710

**Ethnicity**
Non-Hispanic White	634
Black	376
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	494
From 75 to 84	310
85 and over	136
Less than 65	106

Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD in 2015

Hypertension	75
High Cholesterol	65
Stroke	3
Ischemic Heart Disease	32
Depression	20
Chronic Kidney Disease	25
Asthma	9
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	40
Dementia	10
Cancer	24

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2016 were gastrointestinal procedures, minimally invasive procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	52
abdominal surgery	19
abscess drainage	16
diagnostic procedures	90
doctor visit	717
gastrointestinal procedures	144
hospital care	48
incision and drainage	16
inpatient care	48
lab tests	61
minimally invasive procedures	125
minor procedures	30
open surgery	19
preventive care	83
removal of lesion (e.g. growth)	90
skin surgery	16
ultrasound (sonogram)	52

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Male	160
Female	343

**Ethnicity**
Non-Hispanic White	290
Black	184
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	265
From 75 to 84	141
85 and over	53
Less than 65	44

Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD in 2016

Hypertension	75
High Cholesterol	65
Stroke	3
Ischemic Heart Disease	28
Depression	19
Chronic Kidney Disease	26
Asthma	12
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	14
Chronic Obstructive Pulmonary Disease	9
Diabetes	40
Dementia	8
Cancer	26

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2017 were gastrointestinal procedures, minimally invasive procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	46
abdominal surgery	13
abscess drainage	17
diagnostic procedures	107
doctor visit	673
gastrointestinal procedures	143
hospital care	60
incision and drainage	17
inpatient care	60
lab tests	78
minimally invasive procedures	143
minor procedures	17
preventive care	101
removal of lesion (e.g. growth)	107
skin surgery	17
ultrasound (sonogram)	46

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Male	172
Female	321

**Ethnicity**
Non-Hispanic White	280
Black	191
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	260
From 75 to 84	143
85 and over	55
Less than 65	35

Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD in 2017

Hypertension	75
High Cholesterol	56
Stroke	3
Ischemic Heart Disease	31
Depression	18
Chronic Kidney Disease	25
Asthma	9
Osteoperosis	8
Atrial Fibrilation	7
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	37
Dementia	8
Cancer	24

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2018 were gastrointestinal procedures, minimally invasive procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	45
abdominal surgery	21
abscess drainage	13
diagnostic procedures	95
doctor visit	656
gastrointestinal procedures	156
incision and drainage	13
lab tests	57
minimally invasive procedures	156
minor procedures	13
preventive care	83
removal of lesion (e.g. growth)	95
skin surgery	13
ultrasound (sonogram)	45

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Male	161
Female	298

**Ethnicity**
Non-Hispanic White	251
Black	184
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	239
From 75 to 84	135
85 and over	51
Less than 65	34

Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD in 2018

Hypertension	75
High Cholesterol	60
Stroke	4
Ischemic Heart Disease	29
Depression	22
Chronic Kidney Disease	25
Asthma	9
Osteoperosis	11
Atrial Fibrilation	7
Heart Failure	11
Chronic Obstructive Pulmonary Disease	11
Diabetes	36
Dementia	8
Cancer	23

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2019 were gastrointestinal procedures, minimally invasive procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	45
abdominal surgery	30
abscess drainage	14
diagnostic procedures	102
doctor visit	658
gastrointestinal procedures	164
incision and drainage	14
lab tests	46
minimally invasive procedures	164
minor procedures	14
preventive care	78
removal of lesion (e.g. growth)	102
skin surgery	14
ultrasound (sonogram)	45

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Male	174
Female	308

**Ethnicity**
Non-Hispanic White	269
Black	196
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	259
From 75 to 84	156
85 and over	36
Less than 65	31

Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD in 2019

Hypertension	75
High Cholesterol	66
Stroke	6
Ischemic Heart Disease	30
Depression	21
Chronic Kidney Disease	26
Asthma	8
Osteoperosis	7
Atrial Fibrilation	7
Heart Failure	11
Chronic Obstructive Pulmonary Disease	11
Diabetes	34
Dementia	7
Cancer	22

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2020 were gastrointestinal procedures, minimally invasive procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	35
abdominal surgery	17
abscess drainage	14
diagnostic procedures	68
doctor visit	431
gastrointestinal procedures	97
incision and drainage	14
lab tests	36
minimally invasive procedures	97
minor procedures	14
preventive care	48
removal of lesion (e.g. growth)	68
skin surgery	14
ultrasound (sonogram)	35

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Male	123
Female	218

**Ethnicity**
Non-Hispanic White	174
Black	149
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	170
From 75 to 84	116
85 and over	25
Less than 65	30

Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD in 2020

Hypertension	71
High Cholesterol	64
Stroke	4
Ischemic Heart Disease	30
Depression	20
Chronic Kidney Disease	27
Asthma	5
Osteoperosis	8
Atrial Fibrilation	6
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	38
Dementia	4
Cancer	27

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2021 were gastrointestinal procedures, minimally invasive procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	56
abdominal surgery	21
abscess drainage	23
diagnostic procedures	85
doctor visit	511
gastrointestinal procedures	124
incision and drainage	23
lab tests	43
minimally invasive procedures	124
minor procedures	23
preventive care	61
removal of lesion (e.g. growth)	85
skin surgery	23
ultrasound (sonogram)	56

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Male	126
Female	258

**Ethnicity**
Non-Hispanic White	210
Black	151
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	200
From 75 to 84	117
85 and over	38
Less than 65	29

Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD in 2021

Hypertension	75
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	29
Depression	17
Chronic Kidney Disease	27
Asthma	6
Osteoperosis	11
Atrial Fibrilation	5
Heart Failure	10
Chronic Obstructive Pulmonary Disease	7
Diabetes	36
Dementia	5
Cancer	22

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2022 were gastrointestinal procedures, minimally invasive procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	68
abdominal surgery	35
abscess drainage	18
diagnostic procedures	94
doctor visit	551
gastrointestinal procedures	147
incision and drainage	18
lab tests	35
minimally invasive procedures	147
minor procedures	18
preventive care	53
removal of lesion (e.g. growth)	94
skin surgery	18
ultrasound (sonogram)	68

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Male	151
Female	251

**Ethnicity**
Non-Hispanic White	233
Black	138
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	204
From 75 to 84	134
85 and over	37
Less than 65	27

Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	23
Depression	20
Chronic Kidney Disease	20
Asthma	11
Osteoperosis	14
Atrial Fibrilation	9
Heart Failure	8
Chronic Obstructive Pulmonary Disease	11
Diabetes	36
Dementia	4
Cancer	30

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2023 were gastrointestinal procedures, minimally invasive procedures, ultrasound (sonogram) and abdominal imaging.

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	103
abdominal surgery	33
abscess drainage	13
diagnostic procedures	91
doctor visit	536
gastrointestinal procedures	135
incision and drainage	13
lab tests	36
minimally invasive procedures	135
minor procedures	13
plastic surgery procedures	29
preventive care	47
reconstructive surgery	29
removal of lesion (e.g. growth)	91
skin surgery	13
tissue transfer	29
ultrasound (sonogram)	103

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Male	175
Female	237

**Ethnicity**
Non-Hispanic White	238
Black	144
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	197
From 75 to 84	159
85 and over	34
Less than 65	22

Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	27
Depression	21
Chronic Kidney Disease	17
Asthma	9
Osteoperosis	14
Atrial Fibrilation	12
Heart Failure	9
Chronic Obstructive Pulmonary Disease	10
Diabetes	37
Dementia	6
Cancer	25

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD during 2024 were minimally invasive procedures, gastrointestinal procedures, ultrasound (sonogram) and abdominal imaging.

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

abdominal imaging	117
abdominal surgery	40
diagnostic procedures	82
doctor visit	456
gastrointestinal procedures	146
lab tests	26
minimally invasive procedures	146
preventive care	50
removal of lesion (e.g. growth)	82
ultrasound (sonogram)	117

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Male	180
Female	220

**Ethnicity**
Non-Hispanic White	229
Black	148
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	190
From 75 to 84	157
85 and over	33
Less than 65	20

Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	27
Depression	16
Chronic Kidney Disease	19
Asthma	11
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	10
Chronic Obstructive Pulmonary Disease	14
Diabetes	38
Dementia	5
Cancer	23

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Gary Hamamoto, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gary Hamamoto, MD treated as a general surgeon in Owings Mills, MD were gastrointestinal procedures, minimally invasive procedures, diagnostic procedures and removal of lesion (e.g. growth).

abdominal imaging	58
abdominal surgery	22
abscess drainage	16
breast procedures	13
diagnostic procedures	96
doctor visit	609
gastrointestinal procedures	143
hospital care	95
incision and drainage	16
inpatient care	95
lab tests	54
minimally invasive procedures	137
minor procedures	17
open surgery	17
plastic surgery procedures	29
preventive care	76
reconstructive surgery	29
removal of lesion (e.g. growth)	96
skin surgery	16
tissue transfer	29
ultrasound (sonogram)	59
women's imaging	13

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Gary Hamamoto, MD.

**Gender**
Female	299
Male	163

**Ethnicity**
Black / African American	175
Asian / Pacific Islander	0
Non-Hispanic White	265
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
85 and over	48
75 to 84	143
Less than 65	38
65 to 74	232

Average of Total of Conditions of Medicare patients treated by Dr. Gary Hamamoto, MD From 2012 - 2024

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

Hypertension	68
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	26
Depression	17
Chronic Kidney Disease	21
Asthma	8
Osteoporosis	9
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	34
Atrial Fibrillation	8
Dementia	6
Cancer	22

Education & Training

He has a state license in Maryland.

Licensed In: Maryland

Ratings & Reviews

Dr. Gary Hamamoto, MD has an exceptional overall rating with an average of 4.72 out of 5 stars based on 9 ratings. We collect ratings and reviews of Dr. Gary Hamamoto, MD from all over the web to help you find the right in Owings Mills, MD.

4.72

Overall Rating

(9 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Intuitive Surgical, Inc.	$24,166 Da Vinci Surgical System $24,166
W. L. Gore & Associates, Inc.	$1,420 BIO-A Tissue Reinforcement $977	BIO-A Hernia Plug $226	SYNECOR Biomaterial $217
Davol Inc.	$836 PHASIX $317	Phasix Mesh $228	SURGICAL $185	OPTIFIX $106
Baxter Healthcare	$515 TISSEEL $401	BioSurgery - TISSEEL $114
CONMED Corporation	$339 AirSeal $339
Other	$790 LigaSure $159	Echelon; Endopath $109	SpyGlass Discover $95	Zynrelef $47	STRATAFIX $35	Other $345