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Davis Lok Sim, MD PHD

(Davis L. Sim, MD PHD)

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Specializes in: Adult Gastroenterology

University of Virginia School of Medicine (2009)

3355 Riverbend Dr 500
Springfield, OR 97477

(541) 868-9506

Davis Lok Sim, MD PHD is a gastroenterologist in Springfield, OR specializing in adult gastroenterology. He graduated from University of Virginia School of Medicine in 2009 and has 16 years of experience. Davis Lok Sim, MD PHD is affiliated with EUGENE GASTROENTEROLOGY CONSULTANTS PC.

Office Locations

3355 Riverbend Dr 500
Springfield, OR 97477

(541) 868-9506

(541) 685-5920

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Noteworthy Medicare Patient Procedures Performed by Davis Lok Sim, MD PHD in 2023

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

Top 5%

By Affordability:

special stains

In 2023, Davis Lok Sim, MD PHD had a list price for special stains that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Oregon. 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.

Top 25%

By Volume:

colonoscopy

colonoscopy with biopsy

colonoscopy with lesion removal

EGD with biopsy

EGD with lesion removal

endoscopy

gastrointestinal biopsy

gastrointestinal procedures

removal of lesion

In 2013, Davis Lok Sim, MD PHD performed more colonoscopy, colonoscopy with biopsy, colonoscopy with lesion removal, EGD with biopsy, EGD with lesion removal, endoscopy, gastrointestinal biopsy, gastrointestinal procedures, and removal of lesion (e.g. growth) procedures for Medicare patients than 75% of providers in related specialties within Oregon.

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Davis Lok Sim, MD PHD treated as a gastroenterologist in Springfield, OR during 2015 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Davis Lok Sim, MD PHD for Medicare patients.

diagnostic procedures	40
doctor visit	25
gastrointestinal procedures	40
hospital care	20
inpatient care	20
minimally invasive procedures	40
removal of lesion (e.g. growth)	40

2015 Medicare Patient Data

Information about Medicare patients treated by Davis Lok Sim, MD PHD.

**Gender**
Male	70
Female	102

**Age**
From 65 to 74	92
From 75 to 84	38
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2015

The most common conditions of Medicare patients that Davis Lok Sim, MD PHD treated during 2015 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	59
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	35
Depression	22
Chronic Kidney Disease	34
Asthma	14
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	20
Chronic Obstructive Pulmonary Disease	24
Diabetes	35
Dementia	13
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Davis Lok Sim, MD PHD treated as a gastroenterologist in Springfield, OR during 2016 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Davis Lok Sim, MD PHD for Medicare patients.

diagnostic procedures	206
doctor visit	163
esophageal dilation	13
gastrointestinal procedures	264
hospital care	80
injections	18
inpatient care	80
lab tests	12
minimally invasive procedures	264
preventive care	12
removal of lesion (e.g. growth)	206

2016 Medicare Patient Data

Information about Medicare patients treated by Davis Lok Sim, MD PHD.

**Gender**
Male	138
Female	168

**Ethnicity**
Non-Hispanic White	285
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	150
From 75 to 84	62
85 and over	27
Less than 65	67

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2016

The most common conditions of Medicare patients that Davis Lok Sim, MD PHD treated during 2016 were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	54
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	21
Depression	28
Chronic Kidney Disease	30
Asthma	17
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Davis Lok Sim, MD PHD treated as a gastroenterologist in Springfield, OR during 2017 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Davis Lok Sim, MD PHD for Medicare patients.

diagnostic procedures	266
doctor visit	205
esophageal dilation	15
gastrointestinal procedures	324
hospital care	61
injections	30
inpatient care	61
lab tests	12
minimally invasive procedures	324
removal of lesion (e.g. growth)	266

2017 Medicare Patient Data

Information about Medicare patients treated by Davis Lok Sim, MD PHD.

**Gender**
Male	171
Female	214

**Ethnicity**
Non-Hispanic White	362
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	74
85 and over	20
Less than 65	84

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2017

The most common conditions of Medicare patients that Davis Lok Sim, MD PHD treated during 2017 were hypertension, high cholesterol, depression and chronic kidney disease.

Hypertension	56
High Cholesterol	39
Stroke	4
Ischemic Heart Disease	22
Depression	29
Chronic Kidney Disease	27
Asthma	6
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	26
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Davis Lok Sim, MD PHD treated as a gastroenterologist in Springfield, OR during 2018 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Davis Lok Sim, MD PHD for Medicare patients.

diagnostic procedures	246
doctor visit	196
gastrointestinal procedures	277
hospital care	51
injections	17
inpatient care	51
minimally invasive procedures	277
removal of lesion (e.g. growth)	246

2018 Medicare Patient Data

Information about Medicare patients treated by Davis Lok Sim, MD PHD.

**Gender**
Male	178
Female	191

**Ethnicity**
Non-Hispanic White	339
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	197
From 75 to 84	90
85 and over	16
Less than 65	66

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2018

The most common conditions of Medicare patients that Davis Lok Sim, MD PHD treated during 2018 were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	57
High Cholesterol	43
Stroke	5
Ischemic Heart Disease	21
Depression	29
Chronic Kidney Disease	33
Asthma	9
Osteoperosis	9
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	24
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Davis Lok Sim, MD PHD treated as a gastroenterologist in Springfield, OR during 2019 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Davis Lok Sim, MD PHD for Medicare patients.

diagnostic procedures	284
doctor visit	153
gastrointestinal procedures	332
hospital care	59
inpatient care	59
lab tests	13
manometry	23
minimally invasive procedures	309
preventive care	14
removal of lesion (e.g. growth)	284

2019 Medicare Patient Data

Information about Medicare patients treated by Davis Lok Sim, MD PHD.

**Gender**
Male	169
Female	216

**Ethnicity**
Non-Hispanic White	348
Black	0
Hispanic	13
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	216
From 75 to 84	80
85 and over	19
Less than 65	70

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2019

The most common conditions of Medicare patients that Davis Lok Sim, MD PHD treated during 2019 were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	58
High Cholesterol	48
Stroke	6
Ischemic Heart Disease	24
Depression	30
Chronic Kidney Disease	31
Asthma	9
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	0
Diabetes	23
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Davis Lok Sim, MD PHD treated as a gastroenterologist in Springfield, OR during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Davis Lok Sim, MD PHD for Medicare patients.

diagnostic procedures	233
doctor visit	171
gastrointestinal procedures	244
hospital care	30
inpatient care	30
minimally invasive procedures	244
removal of lesion (e.g. growth)	233

2020 Medicare Patient Data

Information about Medicare patients treated by Davis Lok Sim, MD PHD.

**Gender**
Male	117
Female	178

**Ethnicity**
Non-Hispanic White	270
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	170
From 75 to 84	63
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2020

The most common conditions of Medicare patients that Davis Lok Sim, MD PHD treated during 2020 were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	52
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	24
Depression	28
Chronic Kidney Disease	30
Asthma	7
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	23
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Davis Lok Sim, MD PHD treated as a gastroenterologist in Springfield, OR during 2021 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Davis Lok Sim, MD PHD for Medicare patients.

diagnostic procedures	284
doctor visit	166
gastrointestinal procedures	311
hospital care	33
injections	12
inpatient care	33
manometry	15
minimally invasive procedures	296
removal of lesion (e.g. growth)	284

2021 Medicare Patient Data

Information about Medicare patients treated by Davis Lok Sim, MD PHD.

**Gender**
Male	149
Female	181

**Ethnicity**
Non-Hispanic White	296
Black	0
Hispanic	0
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	185
From 75 to 84	86
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2021

The most common conditions of Medicare patients that Davis Lok Sim, MD PHD treated during 2021 were hypertension, high cholesterol, depression and chronic kidney disease.

Hypertension	56
High Cholesterol	49
Stroke	5
Ischemic Heart Disease	23
Depression	29
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	19
Chronic Obstructive Pulmonary Disease	15
Diabetes	25
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Davis Lok Sim, MD PHD treated as a gastroenterologist in Springfield, OR during 2022 were gastrointestinal procedures, removal of lesion (e.g. growth), minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Davis Lok Sim, MD PHD for Medicare patients.

diagnostic procedures	265
doctor visit	124
gastrointestinal procedures	276
hospital care	18
inpatient care	18
manometry	11
minimally invasive procedures	265
removal of lesion (e.g. growth)	265

2022 Medicare Patient Data

Information about Medicare patients treated by Davis Lok Sim, MD PHD.

**Gender**
Male	126
Female	182

**Ethnicity**
Non-Hispanic White	282
Black	0
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	173
From 75 to 84	89
85 and over	13
Less than 65	33

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2022

The most common conditions of Medicare patients that Davis Lok Sim, MD PHD treated during 2022 were hypertension, high cholesterol, depression and diabetes.

Hypertension	68
High Cholesterol	64
Stroke	7
Ischemic Heart Disease	15
Depression	25
Chronic Kidney Disease	18
Asthma	11
Osteoperosis	17
Atrial Fibrilation	17
Heart Failure	14
Chronic Obstructive Pulmonary Disease	17
Diabetes	24
Dementia	5
Cancer	16

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Davis Lok Sim, MD PHD treated as a gastroenterologist in Springfield, OR during 2023 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Davis Lok Sim, MD PHD for Medicare patients.

diagnostic procedures	249
doctor visit	128
gastrointestinal procedures	249
lab tests	12
minimally invasive procedures	249
removal of lesion (e.g. growth)	249

2023 Medicare Patient Data

Information about Medicare patients treated by Davis Lok Sim, MD PHD.

**Gender**
Male	112
Female	158

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

**Age**
From 65 to 74	151
From 75 to 84	74
85 and over	13
Less than 65	32

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2023

The most common conditions of Medicare patients that Davis Lok Sim, MD PHD treated during 2023 were high cholesterol, hypertension, depression and chronic kidney disease.

Hypertension	59
High Cholesterol	63
Stroke	4
Ischemic Heart Disease	14
Depression	23
Chronic Kidney Disease	20
Asthma	14
Osteoperosis	17
Atrial Fibrilation	14
Heart Failure	11
Chronic Obstructive Pulmonary Disease	17
Diabetes	18
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2015 - 2023

Volume of procedures performed by Davis Lok Sim, MD PHD for Medicare patients.

The highest averages for the top procedures that Davis Lok Sim, MD PHD treated as a gastroenterologist in Springfield, OR were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

diagnostic procedures	230
doctor visit	147
esophageal dilation	14
gastrointestinal procedures	257
hospital care	44
injections	19
inpatient care	44
lab tests	12
manometry	16
minimally invasive procedures	252
preventive care	13
removal of lesion (e.g. growth)	230

Average Medicare Patient Data From 2015 - 2023

Information about Medicare patients treated by Davis Lok Sim, MD PHD.

**Gender**
Male	136
Female	176

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	270
Hispanic	3
Native American / Alaskan Native	0
Other	4

**Age**
75 to 84	72
85 and over	12
Less than 65	39
65 to 74	171

Average of Total of Conditions of Medicare patients treated by Davis Lok Sim, MD PHD From 2015 - 2023

The highest averages of the most common conditions of Medicare patients that Davis Lok Sim, MD PHD treated were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	57
High Cholesterol	49
Stroke	3
Ischemic Heart Disease	22
Depression	27
Chronic Kidney Disease	27
Asthma	10
Osteoporosis	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	25
Atrial Fibrillation	10
Dementia	6
Cancer	12

Education & Training

Davis Lok Sim, MD PHD graduated from University of Virginia School of Medicine in 2009. He has a state license in Oregon.

Medical School: University of Virginia School of Medicine (2009)

Licensed In: Oregon

Affiliations & Hospitals

Davis Lok Sim, MD PHD is associated with these hospitals and organizations:

EUGENE GASTROENTEROLOGY CONSULTANTS PC

Ratings & Reviews

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General Payments

These charts describe general payments received by Davis Lok Sim, MD PHD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
AbbVie Inc.	$138 Skyrizi $111	Rinvoq $27
Boston Scientific Corporation	$127 GENERAL BILIARY DEVICES $104	$23
Janssen Scientific Affairs, LLC	$100 REMICADE $100
Janssen Biotech, Inc.	$95 STELARA $78	SIMPONI $17
Valeant Pharmaceuticals North America LLC	$92 Uceris $92
Other	$91 DUPIXENT $40	ZEPOSIA $20	SUFLAVE $17	XELJANZ $14

**Types of Payments**
Food and Beverage	$641

Biography

Dr. Davis Sim is a specialist in adult gastroenterology. Dr. Sim attended medical school at the University of Virginia School of Medicine.

Select Year:

Davis Lok Sim, MD PHD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Davis Lok Sim, MD PHD in 2023

By Affordability:

By Volume:

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Davis Lok Sim, MD PHD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2015 - 2023

Average Medicare Patient Data From 2015 - 2023

Average of Total of Conditions of Medicare patients treated by Davis Lok Sim, MD PHD From 2015 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

Other Providers in Springfield, OR