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Dr. Alfredo Diaz, MD

(Dr. Alfredo Diaz, MD)

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Specializes in: Internal Medicine (Adult Medicine)

University of Nebraska College of Medicine

5300 Memorial Drive
Two Rivers, WI 54241

(920) 793-7400

Dr. Alfredo Diaz, MD is an internist in Two Rivers, WI specializing in internal medicine (adult medicine). He graduated from University of Nebraska College of Medicine. Dr. Alfredo Diaz, MD is affiliated with Advocate Health Care.

Office Locations

2219 Garfield Street
Two Rivers, WI 54241

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Advocate Health Care

5300 Memorial Drive
Two Rivers, WI 54241

(920) 793-7400

(920) 793-7403

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Noteworthy Medicare Patient Procedures Performed by Dr. Alfredo Diaz, MD in 2023

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

Top 5%

By Volume:

flu shot

In 2023, Dr. Alfredo Diaz, MD performed more flu shot procedures for Medicare patients than 95% of providers in related specialties within Wisconsin.

Top 10%

By Volume:

Welcome to Medicare visit

In 2023, Dr. Alfredo Diaz, MD performed more Welcome to Medicare visit (initial preventive physical exam) procedures for Medicare patients than 90% of providers in related specialties within Wisconsin.

Top 25%

By Volume:

preventive care

By Affordability:

prothrombin time test

vaccines

In 2012, among providers in related specialties within Wisconsin, Dr. Alfredo Diaz, MD performed more preventive care procedures for Medicare patients than 75% of them and he also had a list price for blood tests, coagulation (blood clotting) tests, electrocardiogram (EKG), flu shot, flu vaccine, immunization (preventive vaccines), lab tests, liver function tests (LFTs), prothrombin time (PT) test, and vaccines 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. Alfredo Diaz, MD treated as an internist in Two Rivers, WI during 2012 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Alfredo Diaz, MD for Medicare patients.

blood draw	1006
cardiac procedures	29
doctor visit	1095
hospital care	113
inpatient care	113
lab tests	1647
nursing home care	83
preventive care	230
pulmonary testing	54
stress testing	29
vaccines	184

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Alfredo Diaz, MD treated as an internist in Two Rivers, WI during 2013 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Alfredo Diaz, MD for Medicare patients.

blood draw	933
cardiac procedures	41
doctor visit	1229
hospital care	138
inpatient care	138
lab tests	1517
nursing home care	64
preventive care	251
pulmonary testing	26
stress testing	41
vaccines	181

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfredo Diaz, MD.

**Gender**
Male	392
Female	349

**Ethnicity**
Non-Hispanic White	707
Black	0
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	294
From 75 to 84	192
85 and over	146
Less than 65	109

Conditions of Medicare patients treated by Dr. Alfredo Diaz, MD in 2013

Hypertension	72
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	41
Depression	22
Chronic Kidney Disease	33
Asthma	6
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	21
Chronic Obstructive Pulmonary Disease	16
Diabetes	35
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Alfredo Diaz, MD treated as an internist in Two Rivers, WI during 2014 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Alfredo Diaz, MD for Medicare patients.

blood draw	756
cardiac procedures	30
doctor visit	1271
hospital care	88
inpatient care	88
lab tests	1489
nursing home care	43
preventive care	251
pulmonary testing	50
stress testing	30
vaccines	182

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfredo Diaz, MD.

**Gender**
Male	366
Female	278

**Ethnicity**
Non-Hispanic White	612
Black	0
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	266
From 75 to 84	183
85 and over	101
Less than 65	94

Conditions of Medicare patients treated by Dr. Alfredo Diaz, MD in 2014

Hypertension	72
High Cholesterol	71
Stroke	6
Ischemic Heart Disease	41
Depression	21
Chronic Kidney Disease	34
Asthma	8
Osteoperosis	7
Atrial Fibrilation	15
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	36
Dementia	9
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Alfredo Diaz, MD treated as an internist in Two Rivers, WI during 2015 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Alfredo Diaz, MD for Medicare patients.

blood draw	857
cardiac procedures	49
doctor visit	1500
hospital care	71
inpatient care	71
lab tests	1845
nursing home care	33
preventive care	463
pulmonary testing	40
stress testing	36
vaccines	400

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfredo Diaz, MD.

**Gender**
Male	782
Female	636

**Ethnicity**
Non-Hispanic White	1342
Black	0
Hispanic	0
Asian	0
Other	34
Native American	0

**Age**
From 65 to 74	604
From 75 to 84	358
85 and over	258
Less than 65	198

Conditions of Medicare patients treated by Dr. Alfredo Diaz, MD in 2015

Hypertension	73
High Cholesterol	73
Stroke	6
Ischemic Heart Disease	41
Depression	24
Chronic Kidney Disease	40
Asthma	14
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	16
Diabetes	36
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Alfredo Diaz, MD treated as an internist in Two Rivers, WI during 2016 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Alfredo Diaz, MD for Medicare patients.

blood draw	960
cardiac procedures	46
doctor visit	1688
hospital care	49
inpatient care	35
lab tests	1945
nursing home care	26
outpatient care	14
preventive care	369
pulmonary testing	27
stress testing	29
vaccines	300

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfredo Diaz, MD.

**Gender**
Male	416
Female	295

**Ethnicity**
Non-Hispanic White	673
Black	0
Hispanic	0
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	299
From 75 to 84	193
85 and over	120
Less than 65	99

Conditions of Medicare patients treated by Dr. Alfredo Diaz, MD in 2016

Hypertension	74
High Cholesterol	74
Stroke	6
Ischemic Heart Disease	41
Depression	24
Chronic Kidney Disease	46
Asthma	21
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	20
Chronic Obstructive Pulmonary Disease	16
Diabetes	39
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Alfredo Diaz, MD treated as an internist in Two Rivers, WI during 2017 were lab tests, preventive care, vaccines and cardiac procedures.

Volume of procedures performed by Dr. Alfredo Diaz, MD for Medicare patients.

blood draw	13
cardiac procedures	42
doctor visit	1418
hospital care	12
lab tests	413
nursing home care	33
outpatient care	12
preventive care	282
pulmonary testing	11
stress testing	29
vaccines	233

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfredo Diaz, MD.

**Gender**
Male	367
Female	252

**Ethnicity**
Non-Hispanic White	584
Black	0
Hispanic	0
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	278
From 75 to 84	168
85 and over	105
Less than 65	68

Conditions of Medicare patients treated by Dr. Alfredo Diaz, MD in 2017

Hypertension	71
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	42
Depression	24
Chronic Kidney Disease	42
Asthma	7
Osteoperosis	8
Atrial Fibrilation	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	14
Diabetes	35
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Alfredo Diaz, MD treated as an internist in Two Rivers, WI during 2018 were lab tests, preventive care, vaccines and nursing home care.

Volume of procedures performed by Dr. Alfredo Diaz, MD for Medicare patients.

cardiac procedures	20
doctor visit	1024
hospital care	14
lab tests	303
nursing home care	36
outpatient care	14
preventive care	240
stress testing	20
vaccines	222

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfredo Diaz, MD.

**Gender**
Male	382
Female	258

**Ethnicity**
Non-Hispanic White	605
Black	0
Hispanic	0
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	297
From 75 to 84	163
85 and over	113
Less than 65	67

Conditions of Medicare patients treated by Dr. Alfredo Diaz, MD in 2018

Hypertension	72
High Cholesterol	73
Stroke	6
Ischemic Heart Disease	45
Depression	23
Chronic Kidney Disease	44
Asthma	7
Osteoperosis	7
Atrial Fibrilation	21
Heart Failure	23
Chronic Obstructive Pulmonary Disease	17
Diabetes	35
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Alfredo Diaz, MD treated as an internist in Two Rivers, WI during 2019 were preventive care, vaccines, lab tests and pulmonary testing.

Volume of procedures performed by Dr. Alfredo Diaz, MD for Medicare patients.

cardiac procedures	37
doctor visit	960
lab tests	151
nursing home care	46
preventive care	258
pulmonary testing	49
stress testing	20
vaccines	216

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfredo Diaz, MD.

**Gender**
Male	363
Female	242

**Ethnicity**
Non-Hispanic White	570
Black	0
Hispanic	0
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	289
From 75 to 84	159
85 and over	103
Less than 65	54

Conditions of Medicare patients treated by Dr. Alfredo Diaz, MD in 2019

Hypertension	73
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	45
Depression	25
Chronic Kidney Disease	45
Asthma	7
Osteoperosis	9
Atrial Fibrilation	21
Heart Failure	21
Chronic Obstructive Pulmonary Disease	16
Diabetes	35
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Alfredo Diaz, MD treated as an internist in Two Rivers, WI during 2020 were preventive care, vaccines, lab tests and nursing home care.

Volume of procedures performed by Dr. Alfredo Diaz, MD for Medicare patients.

cardiac procedures	21
doctor visit	849
lab tests	100
nursing home care	57
preventive care	258
vaccines	209

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfredo Diaz, MD.

**Gender**
Male	397
Female	278

**Ethnicity**
Non-Hispanic White	636
Black	0
Hispanic	0
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	292
From 75 to 84	197
85 and over	123
Less than 65	63

Conditions of Medicare patients treated by Dr. Alfredo Diaz, MD in 2020

Hypertension	72
High Cholesterol	73
Stroke	4
Ischemic Heart Disease	46
Depression	23
Chronic Kidney Disease	46
Asthma	8
Osteoperosis	9
Atrial Fibrilation	23
Heart Failure	22
Chronic Obstructive Pulmonary Disease	13
Diabetes	36
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Alfredo Diaz, MD treated as an internist in Two Rivers, WI during 2021 were preventive care, vaccines, nursing home care and cardiac procedures.

Volume of procedures performed by Dr. Alfredo Diaz, MD for Medicare patients.

cardiac procedures	23
doctor visit	931
lab tests	21
nursing home care	32
preventive care	208
vaccines	157

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfredo Diaz, MD.

**Gender**
Male	340
Female	205

**Ethnicity**
Non-Hispanic White	504
Black	0
Hispanic	0
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	281
From 75 to 84	139
85 and over	73
Less than 65	52

Conditions of Medicare patients treated by Dr. Alfredo Diaz, MD in 2021

Hypertension	69
High Cholesterol	74
Stroke	2
Ischemic Heart Disease	44
Depression	24
Chronic Kidney Disease	45
Asthma	7
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	20
Chronic Obstructive Pulmonary Disease	14
Diabetes	36
Dementia	10
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Alfredo Diaz, MD treated as an internist in Two Rivers, WI during 2022 were preventive care, lab tests and vaccines.

Volume of procedures performed by Dr. Alfredo Diaz, MD for Medicare patients.

doctor visit	829
lab tests	171
preventive care	179
vaccines	165

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfredo Diaz, MD.

**Gender**
Male	320
Female	206

**Ethnicity**
Non-Hispanic White	483
Black	0
Hispanic	0
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	266
From 75 to 84	144
85 and over	71
Less than 65	45

Conditions of Medicare patients treated by Dr. Alfredo Diaz, MD in 2022

Hypertension	72
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	33
Depression	20
Chronic Kidney Disease	37
Asthma	9
Osteoperosis	12
Atrial Fibrilation	21
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	6
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Alfredo Diaz, MD for Medicare patients.

The highest averages for the top procedures that Dr. Alfredo Diaz, MD treated as an internist in Two Rivers, WI were lab tests, blood draw, preventive care and vaccines.

blood draw	754
cardiac procedures	33
doctor visit	1163
hospital care	69
inpatient care	89
lab tests	872
nursing home care	45
outpatient care	13
preventive care	271
pulmonary testing	36
stress testing	29
vaccines	222

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Alfredo Diaz, MD.

**Gender**
Male	375
Female	272

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	610
Hispanic	0
Native American / Alaskan Native	0
Other	18

**Age**
75 to 84	172
85 and over	110
Less than 65	77
65 to 74	287

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

The highest averages of the most common conditions of Medicare patients that Dr. Alfredo Diaz, MD treated were high cholesterol, hypertension, chronic kidney disease and ischemic heart disease.

Hypertension	65
High Cholesterol	65
Stroke	4
Ischemic Heart Disease	38
Depression	20
Chronic Kidney Disease	37
Asthma	8
Osteoporosis	8
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	32
Atrial Fibrillation	16
Cancer	10
Dementia	7

Education & Training

Dr. Alfredo Diaz, MD graduated from University of Nebraska College of Medicine. He completed residency at University of Nebraska Medical Center. He is certified by the American Board of Internal Medicine and has a state license in Nebraska.

Medical School: University of Nebraska College of Medicine

Residency: University of Nebraska Medical Center

Board Certification: American Board of Internal Medicine

Licensed In: Nebraska

Affiliations & Hospitals

Dr. Alfredo Diaz, 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. Alfredo Diaz, MD appears to accept the following insurance providers: HFN, Aetna Medicare, HealthPartners, Blue Cross Blue Shield of Illinois, Private Healthcare Systems (PHCS), United Healthcare Medicare, Prime Health, Aetna, Three Rivers, United Healthcare, Medicare, Network Health, Medicaid, Humana, Cigna, Molina Healthcare, TRICARE, 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. Alfredo Diaz, MD accepts the following insurance providers:

HFN

Aetna Medicare

HealthPartners

Blue Cross Blue Shield of Illinois

Private Healthcare Systems (PHCS)

United Healthcare Medicare

Prime Health

Aetna

Three Rivers

United Healthcare

Medicare

Network Health

Medicaid

Humana

Cigna

Molina Healthcare

TRICARE

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

Ratings & Reviews

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Biography

Dr. Alfredo Diaz is affiliated with Aurora Medical Group and Advocate Health Care. He can take several insurance carriers, including Anthem, Cofinity, and Blue California. Dr. Diaz attended the University of Nebraska College of Medicine for medical school and subsequently trained at the University of Nebraska Medical Center for residency. He is conversant in Spanish.