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Home > HI Providers > Internists & Internal Medicine Doctors

Dr. Wendy L. Barnes, MD

(Dr. Wendy Lehua Barnes, MD)

(5 Ratings)

Specializes in: Internal Medicine (Adult Medicine)

University of Hawaii at Manoa, John A. Burns School of Medicine (1993)

868 Ululani Street #101
Hilo, HI 96720

(808) 935-3883

Dr. Wendy L. Barnes, MD is an internist in Hilo, HI specializing in internal medicine (adult medicine). She graduated from University of Hawaii at Manoa, John A. Burns School of Medicine in 1993 and has 33 years of experience.

Office Locations

868 Ululani Street #101
Hilo, HI 96720

(808) 935-3883

(808) 969-9224

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Noteworthy Medicare Patient Procedures Performed by Dr. Wendy L. Barnes, MD in 2023

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

Top 5%

By Volume:

By Affordability:

ankle brachial index

ear procedures

vascular physiologic studies

vascular studies

In 2023, among providers in related specialties within Hawaii, Dr. Wendy L. Barnes, MD performed more A1C test, central DEXA, ear procedures, lab tests, and screening test procedures for Medicare patients than 95% of them and she also had a list price for ankle brachial index (ABI), ear procedures, vascular physiologic studies, and vascular studies that was lower than the list prices billed to Medicare by 95% 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.

Top 10%

By Affordability:

In 2023, Dr. Wendy L. Barnes, MD had a list price for flu shot, flu vaccine, immunization (preventive vaccines), and vaccines that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Hawaii. 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:

diagnostic procedures

fasting blood glucose test

lipid profile

By Affordability:

diabetes screening

In 2012, among providers in related specialties within Hawaii, Dr. Wendy L. Barnes, MD performed more diagnostic procedures, fasting blood glucose test, and lipid profile procedures for Medicare patients than 75% of them and she also had a list price for diabetes screening 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. Wendy L. Barnes, MD treated as an internist in Hilo, HI during 2012 were preventive care, lab tests, diabetes management and ultrasound (sonogram).

Volume of procedures performed by Dr. Wendy L. Barnes, MD for Medicare patients.

breast exam	11
cardiac procedures	86
diabetes management	122
diagnostic procedures	15
doctor visit	935
ear procedures	15
gynecologic procedures	11
lab tests	643
musculoskeletal imaging	22
preventive care	690
removal of lesion (e.g. growth)	47
skin procedures	47
stress testing	31
ultrasound (sonogram)	104
vaccines	47
vascular procedures	93
X-rays	22

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Wendy L. Barnes, MD treated as an internist in Hilo, HI during 2013 were preventive care, lab tests, diabetes management and ultrasound (sonogram).

Volume of procedures performed by Dr. Wendy L. Barnes, MD for Medicare patients.

abdominal imaging	21
cardiac procedures	89
diabetes management	156
doctor visit	1062
lab tests	669
musculoskeletal imaging	24
preventive care	721
stress testing	36
ultrasound (sonogram)	125
vaccines	52
vascular procedures	101
X-rays	24

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Wendy L. Barnes, MD.

**Gender**
Male	26
Female	40

**Ethnicity**
Non-Hispanic White	21
Black	0
Hispanic	0
Asian	34
Other	0
Native American	0

**Age**
From 65 to 74	35
From 75 to 84	17
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	0
Chronic Kidney Disease	42
Asthma	39
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	33
Chronic Obstructive Pulmonary Disease	55
Diabetes	38
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Wendy L. Barnes, MD treated as an internist in Hilo, HI during 2014 were preventive care, lab tests, diabetes management and ultrasound (sonogram).

Volume of procedures performed by Dr. Wendy L. Barnes, MD for Medicare patients.

breast exam	13
cardiac procedures	82
debridement (removal of unhealthy tissue)	30
diabetes management	205
diagnostic procedures	15
doctor visit	1065
ear procedures	15
excision	30
gynecologic procedures	13
lab tests	722
musculoskeletal imaging	28
preventive care	771
removal of lesion (e.g. growth)	73
skin procedures	73
stress testing	32
ultrasound (sonogram)	99
vaccines	49
vascular procedures	93
X-rays	28

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Wendy L. Barnes, MD.

**Gender**
Male	26
Female	38

**Ethnicity**
Non-Hispanic White	21
Black	0
Hispanic	0
Asian	30
Other	0
Native American	0

**Age**
From 65 to 74	36
From 75 to 84	12
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	17
Chronic Kidney Disease	45
Asthma	27
Osteoperosis	20
Atrial Fibrilation	0
Heart Failure	39
Chronic Obstructive Pulmonary Disease	67
Diabetes	42
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Wendy L. Barnes, MD treated as an internist in Hilo, HI during 2015 were preventive care, lab tests, diabetes management and ultrasound (sonogram).

Volume of procedures performed by Dr. Wendy L. Barnes, MD for Medicare patients.

cardiac procedures	84
diabetes management	200
diagnostic procedures	14
doctor visit	1013
ear procedures	14
lab tests	684
musculoskeletal imaging	25
preventive care	733
stress testing	33
ultrasound (sonogram)	100
vaccines	49
vascular procedures	93
X-rays	25

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Wendy L. Barnes, MD.

**Gender**
Male	46
Female	74

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	0
Asian	64
Other	0
Native American	0

**Age**
From 65 to 74	76
From 75 to 84	22
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	0
Chronic Kidney Disease	48
Asthma	57
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	37
Chronic Obstructive Pulmonary Disease	62
Diabetes	47
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Wendy L. Barnes, MD treated as an internist in Hilo, HI during 2016 were preventive care, lab tests, diabetes management and ultrasound (sonogram).

Volume of procedures performed by Dr. Wendy L. Barnes, MD for Medicare patients.

breast exam	13
cardiac procedures	94
diabetes management	218
diagnostic procedures	30
doctor visit	1089
ear procedures	30
gynecologic procedures	13
lab tests	746
musculoskeletal imaging	25
preventive care	800
stress testing	35
ultrasound (sonogram)	117
vaccines	54
vascular procedures	103
X-rays	25

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Wendy L. Barnes, MD.

**Gender**
Male	25
Female	41

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	0
Asian	35
Other	0
Native American	0

**Age**
From 65 to 74	34
From 75 to 84	18
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	0
Chronic Kidney Disease	59
Asthma	75
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	44
Chronic Obstructive Pulmonary Disease	75
Diabetes	42
Dementia	0
Cancer	21

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Wendy L. Barnes, MD treated as an internist in Hilo, HI during 2017 were preventive care, lab tests, diabetes management and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Wendy L. Barnes, MD for Medicare patients.

cardiac procedures	86
diabetes management	251
diagnostic procedures	55
doctor visit	1228
ear procedures	55
lab tests	804
musculoskeletal imaging	33
preventive care	861
removal of lesion (e.g. growth)	124
skin procedures	124
stress testing	30
ultrasound (sonogram)	107
vaccines	57
vascular procedures	99
X-rays	33

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Wendy L. Barnes, MD.

**Gender**
Male	25
Female	44

**Ethnicity**
Non-Hispanic White	21
Black	0
Hispanic	0
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	38
From 75 to 84	16
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2017

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	16
Chronic Kidney Disease	52
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	46
Chronic Obstructive Pulmonary Disease	75
Diabetes	52
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Wendy L. Barnes, MD treated as an internist in Hilo, HI during 2018 were preventive care, lab tests, diabetes management and ultrasound (sonogram).

Volume of procedures performed by Dr. Wendy L. Barnes, MD for Medicare patients.

cardiac procedures	79
diabetes management	220
diagnostic procedures	45
doctor visit	1007
ear procedures	45
lab tests	709
musculoskeletal imaging	23
preventive care	759
removal of lesion (e.g. growth)	103
skin procedures	103
stress testing	27
ultrasound (sonogram)	106
vaccines	50
vascular procedures	94
X-rays	23

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Wendy L. Barnes, MD.

**Gender**
Male	20
Female	41

**Ethnicity**
Non-Hispanic White	20
Black	0
Hispanic	0
Asian	30
Other	0
Native American	0

**Age**
From 65 to 74	35
From 75 to 84	14
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	0
Chronic Kidney Disease	46
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	51
Chronic Obstructive Pulmonary Disease	75
Diabetes	49
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Wendy L. Barnes, MD treated as an internist in Hilo, HI during 2019 were preventive care, lab tests, diabetes management and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Wendy L. Barnes, MD for Medicare patients.

cardiac procedures	50
diabetes management	198
diagnostic procedures	45
doctor visit	942
ear procedures	45
lab tests	645
musculoskeletal imaging	27
preventive care	703
removal of lesion (e.g. growth)	138
skin procedures	138
ultrasound (sonogram)	97
vaccines	58
vascular procedures	89
X-rays	27

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Wendy L. Barnes, MD.

**Gender**
Male	18
Female	38

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

**Age**
From 65 to 74	32
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	0
Chronic Kidney Disease	61
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	61
Chronic Obstructive Pulmonary Disease	75
Diabetes	54
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Wendy L. Barnes, MD treated as an internist in Hilo, HI during 2020 were preventive care, lab tests, diabetes management and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Wendy L. Barnes, MD for Medicare patients.

diabetes management	158
diagnostic procedures	13
doctor visit	536
ear procedures	13
lab tests	514
musculoskeletal imaging	17
preventive care	556
removal of lesion (e.g. growth)	52
skin procedures	52
vaccines	42
vascular procedures	32
X-rays	17

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Wendy L. Barnes, MD.

**Gender**
Male	15
Female	30

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

**Age**
From 65 to 74	25
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	24
Chronic Kidney Disease	71
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	60
Chronic Obstructive Pulmonary Disease	40
Diabetes	56
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Wendy L. Barnes, MD treated as an internist in Hilo, HI during 2021 were preventive care, lab tests, diabetes management and vaccines.

Volume of procedures performed by Dr. Wendy L. Barnes, MD for Medicare patients.

diabetes management	193
diagnostic procedures	34
doctor visit	642
ear procedures	34
lab tests	611
musculoskeletal imaging	26
preventive care	675
removal of lesion (e.g. growth)	33
skin procedures	33
vaccines	64
vascular procedures	41
X-rays	26

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Wendy L. Barnes, MD.

**Gender**
Male	16
Female	32

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	0
Asian	24
Other	0
Native American	0

**Age**
From 65 to 74	27
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	40
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	71
Chronic Obstructive Pulmonary Disease	73
Diabetes	52
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Wendy L. Barnes, MD treated as an internist in Hilo, HI during 2022 were preventive care, lab tests, diabetes management and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Wendy L. Barnes, MD for Medicare patients.

diabetes management	206
diagnostic procedures	37
doctor visit	683
ear procedures	37
lab tests	642
musculoskeletal imaging	17
preventive care	686
removal of lesion (e.g. growth)	165
skin procedures	165
vaccines	44
vascular procedures	38
X-rays	17

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Wendy L. Barnes, MD.

**Gender**
Male	16
Female	33

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

**Age**
From 65 to 74	28
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	24
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	69
Chronic Obstructive Pulmonary Disease	75
Diabetes	51
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Wendy L. Barnes, MD for Medicare patients.

The highest averages for the top procedures that Dr. Wendy L. Barnes, MD treated as an internist in Hilo, HI were preventive care, lab tests, diabetes management and ultrasound (sonogram).

abdominal imaging	21
breast exam	12
cardiac procedures	81
debridement (removal of unhealthy tissue)	30
diabetes management	193
diagnostic procedures	30
doctor visit	927
ear procedures	30
excision	30
gynecologic procedures	12
lab tests	671
musculoskeletal imaging	24
preventive care	723
removal of lesion (e.g. growth)	91
skin procedures	91
stress testing	32
ultrasound (sonogram)	106
vaccines	51
vascular procedures	79
X-rays	24

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Wendy L. Barnes, MD.

**Gender**
Male	21
Female	37

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	29
Non-Hispanic White	7
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	9
85 and over	0
Less than 65	0
65 to 74	33

Average of Total of Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Wendy L. Barnes, MD treated were high cholesterol, hypertension, ischemic heart disease and chronic obstructive pulmonary disease.

Hypertension	68
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	68
Depression	11
Chronic Kidney Disease	52
Asthma	18
Osteoporosis	1
Heart Failure	46
Chronic Obstructive Pulmonary Disease	61
Diabetes	43
Atrial Fibrillation	0
Dementia	0
Cancer	4

Education & Training

Dr. Wendy L. Barnes, MD graduated from University of Hawaii at Manoa, John A. Burns School of Medicine in 1993. She has a state license in Hawaii.

Medical School: University of Hawaii at Manoa, John A. Burns School of Medicine (1993)

Licensed In: Hawaii

Ratings & Reviews

Dr. Wendy L. Barnes, MD has an average of 1.8 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. Wendy L. Barnes, MD from all over the web to help you find the right in Hilo, HI.

1.8

Overall Rating

(5 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Janssen Pharmaceuticals, Inc	$89 INVOKANA $88	XARELTO $1
GlaxoSmithKline, LLC.	$17 FLOVENT $17
Boehringer Ingelheim Pharmaceuticals, Inc.	$14 SPIRIVA RESPIMAT $14

**Types of Payments**
Education	$103
Food and Beverage	$17

Biography

Dr. Wendy Barnes studied medicine at the University of Hawaii at Manoa, John A. Burns School of Medicine. The average patient rating for Dr. Barnes is 2.0 stars (out of 5).

Select Year:

Dr. Wendy L. Barnes, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Wendy L. Barnes, MD in 2023

By Volume:

By Affordability:

By Affordability:

By Volume:

By Affordability:

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. Wendy L. Barnes, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Wendy L. Barnes, MD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

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