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Home > WI Providers > Neurologists

Dr. Nihal Herath, MD

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Specializes in: Neurology (Brain & Spinal Cord Disease) and Hospital Medicine (Hospitalist)

University of Colombo Faculty of Medicine

975 Port Washington Road Suite 410
Grafton, WI 53024

(262) 329-8600

Dr. Nihal Herath, MD is a neurologist in Grafton, WI specializing in neurology (brain & spinal cord disease) and hospital medicine (hospitalist). He graduated from University of Colombo Faculty of Medicine. Dr. Nihal Herath, MD is affiliated with Advocate Health Care.

Office Locations

Advocate Health Care

975 Port Washington Road Suite 410
Grafton, WI 53024

(262) 329-8600

(262) 329-8651

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Noteworthy Medicare Patient Procedures Performed by Dr. Nihal Herath, MD in 2023

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

Top 10%

By Volume:

inpatient hospital care

In 2023, Dr. Nihal Herath, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 90% of providers in related specialties within Wisconsin.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Nihal Herath, MD treated as a neurologist in Grafton, WI during 2012 were diagnostic procedures, hospital care, inpatient care and electroencephalography (EEG).

Volume of procedures performed by Dr. Nihal Herath, MD for Medicare patients.

diagnostic procedures	594
doctor visit	483
electroencephalography (EEG)	67
hospital care	75
inpatient care	75

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Nihal Herath, MD treated as a neurologist in Grafton, WI during 2013 were hospital care, inpatient care, electroencephalography (EEG) and diagnostic procedures.

Volume of procedures performed by Dr. Nihal Herath, MD for Medicare patients.

diagnostic procedures	31
doctor visit	499
electroencephalography (EEG)	74
hospital care	100
inpatient care	100

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Nihal Herath, MD.

**Gender**
Male	165
Female	219

**Ethnicity**
Non-Hispanic White	369
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	127
From 75 to 84	99
85 and over	55
Less than 65	103

Conditions of Medicare patients treated by Dr. Nihal Herath, MD in 2013

Hypertension	70
High Cholesterol	56
Stroke	27
Ischemic Heart Disease	36
Depression	35
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	15
Chronic Obstructive Pulmonary Disease	17
Diabetes	31
Dementia	23
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Nihal Herath, MD treated as a neurologist in Grafton, WI during 2014 were hospital care, inpatient care, diagnostic procedures and electroencephalography (EEG).

Volume of procedures performed by Dr. Nihal Herath, MD for Medicare patients.

diagnostic procedures	65
doctor visit	581
electroencephalography (EEG)	64
hospital care	76
inpatient care	76

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Nihal Herath, MD.

**Gender**
Male	151
Female	227

**Ethnicity**
Non-Hispanic White	360
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	124
From 75 to 84	120
85 and over	42
Less than 65	92

Conditions of Medicare patients treated by Dr. Nihal Herath, MD in 2014

Hypertension	70
High Cholesterol	61
Stroke	24
Ischemic Heart Disease	38
Depression	36
Chronic Kidney Disease	33
Asthma	8
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	14
Chronic Obstructive Pulmonary Disease	17
Diabetes	31
Dementia	23
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Nihal Herath, MD treated as a neurologist in Grafton, WI during 2015 were electroencephalography (EEG), hospital care, inpatient care and diagnostic procedures.

Volume of procedures performed by Dr. Nihal Herath, MD for Medicare patients.

diagnostic procedures	53
doctor visit	386
electroencephalography (EEG)	68
hospital care	55
inpatient care	55

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Nihal Herath, MD.

**Gender**
Male	258
Female	380

**Ethnicity**
Non-Hispanic White	606
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	218
From 75 to 84	160
85 and over	96
Less than 65	164

Conditions of Medicare patients treated by Dr. Nihal Herath, MD in 2015

Hypertension	69
High Cholesterol	58
Stroke	17
Ischemic Heart Disease	39
Depression	38
Chronic Kidney Disease	34
Asthma	18
Osteoperosis	16
Atrial Fibrilation	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	20
Diabetes	29
Dementia	22
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Nihal Herath, MD treated as a neurologist in Grafton, WI during 2016 were electroencephalography (EEG), hospital care, inpatient care and diagnostic procedures.

Volume of procedures performed by Dr. Nihal Herath, MD for Medicare patients.

diagnostic procedures	17
doctor visit	521
electroencephalography (EEG)	55
hospital care	26
inpatient care	26

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Nihal Herath, MD.

**Gender**
Male	127
Female	179

**Ethnicity**
Non-Hispanic White	295
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	108
From 75 to 84	69
85 and over	32
Less than 65	97

Conditions of Medicare patients treated by Dr. Nihal Herath, MD in 2016

Hypertension	65
High Cholesterol	55
Stroke	24
Ischemic Heart Disease	32
Depression	35
Chronic Kidney Disease	32
Asthma	24
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	19
Diabetes	26
Dementia	22
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Nihal Herath, MD treated as a neurologist in Grafton, WI during 2017 were electroencephalography (EEG), diagnostic procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Nihal Herath, MD for Medicare patients.

diagnostic procedures	21
doctor visit	462
electroencephalography (EEG)	38
hospital care	15
inpatient care	15
sleep study	12

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Nihal Herath, MD.

**Gender**
Male	120
Female	153

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

**Age**
From 65 to 74	82
From 75 to 84	79
85 and over	33
Less than 65	79

Conditions of Medicare patients treated by Dr. Nihal Herath, MD in 2017

Hypertension	67
High Cholesterol	52
Stroke	23
Ischemic Heart Disease	38
Depression	38
Chronic Kidney Disease	32
Asthma	12
Osteoperosis	12
Atrial Fibrilation	8
Heart Failure	12
Chronic Obstructive Pulmonary Disease	19
Diabetes	27
Dementia	20
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Nihal Herath, MD treated as a neurologist in Grafton, WI during 2018 were hospital care, inpatient care, electroencephalography (EEG) and diagnostic procedures.

Volume of procedures performed by Dr. Nihal Herath, MD for Medicare patients.

diagnostic procedures	23
doctor visit	256
electroencephalography (EEG)	32
hospital care	51
inpatient care	51

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Nihal Herath, MD.

**Gender**
Male	118
Female	123

**Ethnicity**
Non-Hispanic White	227
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	81
85 and over	26
Less than 65	51

Conditions of Medicare patients treated by Dr. Nihal Herath, MD in 2018

Hypertension	73
High Cholesterol	66
Stroke	21
Ischemic Heart Disease	40
Depression	38
Chronic Kidney Disease	37
Asthma	10
Osteoperosis	8
Atrial Fibrilation	17
Heart Failure	20
Chronic Obstructive Pulmonary Disease	16
Diabetes	34
Dementia	21
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Nihal Herath, MD treated as a neurologist in Grafton, WI during 2019 were hospital care, inpatient care and electroencephalography (EEG).

Volume of procedures performed by Dr. Nihal Herath, MD for Medicare patients.

doctor visit	232
electroencephalography (EEG)	43
hospital care	132
inpatient care	132

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Nihal Herath, MD.

**Gender**
Male	127
Female	120

**Ethnicity**
Non-Hispanic White	232
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	92
From 75 to 84	75
85 and over	34
Less than 65	46

Conditions of Medicare patients treated by Dr. Nihal Herath, MD in 2019

Hypertension	73
High Cholesterol	0
Stroke	26
Ischemic Heart Disease	39
Depression	39
Chronic Kidney Disease	40
Asthma	11
Osteoperosis	8
Atrial Fibrilation	18
Heart Failure	20
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	25
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Nihal Herath, MD treated as a neurologist in Grafton, WI during 2020 were hospital care, inpatient care, electroencephalography (EEG) and sleep study.

Volume of procedures performed by Dr. Nihal Herath, MD for Medicare patients.

doctor visit	225
electroencephalography (EEG)	37
hospital care	85
inpatient care	85
sleep study	12

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Nihal Herath, MD.

**Gender**
Male	130
Female	136

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

**Age**
From 65 to 74	100
From 75 to 84	85
85 and over	27
Less than 65	54

Conditions of Medicare patients treated by Dr. Nihal Herath, MD in 2020

Hypertension	70
High Cholesterol	69
Stroke	19
Ischemic Heart Disease	42
Depression	40
Chronic Kidney Disease	42
Asthma	8
Osteoperosis	10
Atrial Fibrilation	19
Heart Failure	26
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	21
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Nihal Herath, MD treated as a neurologist in Grafton, WI during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Nihal Herath, MD for Medicare patients.

doctor visit	61
hospital care	131
inpatient care	131

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Nihal Herath, MD.

**Gender**
Male	84
Female	77

**Age**
From 65 to 74	56
From 75 to 84	48
85 and over	38
Less than 65	19

Conditions of Medicare patients treated by Dr. Nihal Herath, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	42
Ischemic Heart Disease	47
Depression	41
Chronic Kidney Disease	55
Asthma	16
Osteoperosis	12
Atrial Fibrilation	24
Heart Failure	39
Chronic Obstructive Pulmonary Disease	25
Diabetes	29
Dementia	29
Cancer	18

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Nihal Herath, MD treated as a neurologist in Grafton, WI during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Nihal Herath, MD for Medicare patients.

doctor visit	49
hospital care	199
inpatient care	199

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Nihal Herath, MD.

**Gender**
Male	59
Female	71

**Ethnicity**
Non-Hispanic White	119
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	39
From 75 to 84	52
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Nihal Herath, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	64
Ischemic Heart Disease	44
Depression	45
Chronic Kidney Disease	46
Asthma	11
Osteoperosis	20
Atrial Fibrilation	41
Heart Failure	29
Chronic Obstructive Pulmonary Disease	23
Diabetes	34
Dementia	37
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Nihal Herath, MD for Medicare patients.

The highest averages for the top procedures that Dr. Nihal Herath, MD treated as a neurologist in Grafton, WI were diagnostic procedures, hospital care, inpatient care and electroencephalography (EEG).

diagnostic procedures	114
doctor visit	341
electroencephalography (EEG)	53
hospital care	85
inpatient care	85
sleep study	12

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Nihal Herath, MD.

**Gender**
Male	121
Female	153

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	247
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	78
85 and over	34
Less than 65	64
65 to 74	93

Average of Total of Conditions of Medicare patients treated by Dr. Nihal Herath, MD From 2012 - 2022

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

Hypertension	64
High Cholesterol	51
Stroke	26
Ischemic Heart Disease	35
Depression	35
Chronic Kidney Disease	34
Asthma	11
Osteoporosis	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	27
Atrial Fibrillation	16
Dementia	22
Cancer	12

Education & Training

Dr. Nihal Herath, MD graduated from University of Colombo Faculty of Medicine. He completed residency at University of Wisconsin Hospital and Clinics. He is certified by the American Board of Psychiatry & Neurology and has a state license in Wisconsin.

Medical School: University of Colombo Faculty of Medicine

Residency: University of Wisconsin Hospital and Clinics

Board Certification: American Board of Psychiatry & Neurology

Licensed In: Wisconsin

Affiliations & Hospitals

Dr. Nihal Herath, MD is associated with these hospitals and organizations:

Advocate Health Care

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Nihal Herath, MD appears to accept the following insurance providers: HFN, Aetna Medicare, HealthPartners, Blue Cross Blue Shield of Illinois, United Healthcare Medicare, Private Healthcare Systems (PHCS), Prime Health, Three Rivers, Aetna, United Healthcare, Medicare, Network Health, Medicaid, Humana, Cigna, TRICARE, Molina Healthcare, Coventry, Anthem, HealthSmart, Cofinity, Everpointe Network, Independent Care (iCARE) Medicare, FirstHealth, Fond du Lac Area Businesses On Health (FABOH), Managed Health Services (MHS) Medicare, Quartz Medicare, Health Management Network (HMN), Quartz, Common Ground Healthcare, AAH UMR Select - Team Member Plan, Wisconsin Physicians Service (WPS), HealthPartners Medicare, Community Care Inc (CCI), HealthEOS, Arise Health Plan, Health Tradition, Trilogy, Health Payment Systems (HPS), BayCare Clinic Employee Plan, Provider Network of America (PNOA) and AAH UMR Preferred - Team Member Plan.

Insurance Accepted by Provider includes:

According to our sources, Dr. Nihal Herath, MD accepts the following insurance providers:

HFN

Aetna Medicare

HealthPartners

Blue Cross Blue Shield of Illinois

United Healthcare Medicare

Private Healthcare Systems (PHCS)

Prime Health

Three Rivers

Aetna

United Healthcare

Medicare

Network Health

Medicaid

Humana

Cigna

TRICARE

Molina Healthcare

Coventry

Anthem

HealthSmart

Cofinity

Everpointe Network

Independent Care (iCARE) Medicare

FirstHealth

Fond du Lac Area Businesses On Health (FABOH)

Managed Health Services (MHS) Medicare

Quartz Medicare

Health Management Network (HMN)

Quartz

Common Ground Healthcare

AAH UMR Select - Team Member Plan

Wisconsin Physicians Service (WPS)

HealthPartners Medicare

Community Care Inc (CCI)

HealthEOS

Arise Health Plan

Health Tradition

Trilogy

Health Payment Systems (HPS)

BayCare Clinic Employee Plan

Provider Network of America (PNOA)

AAH UMR Preferred - Team Member Plan

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General Payments

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

**Payments by Company**
Promius Pharma LLC	$619 Zembrace $619
Cyberonics, Inc.	$442 VNS Therapy $442
Novartis Pharmaceuticals Corporation	$388 Gilenya $331	NON BRAND $33	EXELON PATCH $24
Acorda Therapeutics, Inc	$300 INBRIJA $286	AMPYRA $13
Allergan Inc.	$231 BOTOX CHRONIC MIGRAINE $150	BOTOX $43	$37
Other	$1,226 Xyrem $167	TROKENDI XR $142	DISEASE STATE $125	VNS Therapy $117	TYSABRI $90	Other $585

**Types of Payments**
Food and Beverage	$2,128
Consulting Fee	$500
Travel and Lodging	$287
Education	$207
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$85

Biography

Dr. Nihal Herath is a specialist in hospital medicine (hospitalist) and neurology (brain & spinal cord disease). He works in Grafton, WI. He studied medicine at the University of Colombo Faculty of Medicine. Dr. Herath completed his residency training at the University of Wisconsin Hospital and Clinics. He appears to be in-network for Anthem, Cofinity, Blue California, and more. He is conversant in Sinhala. Dr. Herath is professionally affiliated with Advocate Health Care.