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Home > IL Providers > Family Physicians & Family Medicine Specialists

Mary A. Merlo, APRN, CNP

(100 Ratings)

Specializes in: Family Medicine and Urgent Care

15300 West Avenue Suite 224
Orland Park, IL 60462

(708) 923-7874

Mary A. Merlo, APRN, CNP is a nurse in Orland Park, IL specializing in family medicine and urgent care. Mary A. Merlo, APRN, CNP is affiliated with Northwestern Medicine, Northwestern Medical Group (NMG) and CENTRAL DUPAGE PHYSICIAN GROUP.

Office Locations

Northwestern Medicine

15300 West Avenue Suite 224
Orland Park, IL 60462

(708) 923-7874

(708) 923-8596

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Noteworthy Medicare Patient Procedures Performed by Mary A. Merlo, APRN, CNP in 2023

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

Top 10%

By Affordability:

flu shot

flu vaccine

In 2023, Mary A. Merlo, APRN, CNP had a list price for flu shot, and flu vaccine that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Illinois. 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 Affordability:

immunization

lab tests

vaccines

In 2013, Mary A. Merlo, APRN, CNP had a list price for immunization (preventive vaccines), lab tests, and vaccines that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Illinois. 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

2015 Medicare Procedure Volume

The top procedures that Mary A. Merlo, APRN, CNP treated as a nurse in Orland Park, IL during 2015 were hospital care and inpatient care.

Volume of procedures performed by Mary A. Merlo, APRN, CNP for Medicare patients.

hospital care	35
inpatient care	35

Conditions of Medicare patients treated by Mary A. Merlo, APRN, CNP in 2015

The most common conditions of Medicare patients that Mary A. Merlo, APRN, CNP treated during 2015 were depression, hypertension and high cholesterol.

Hypertension	75
High Cholesterol	70
Stroke	0
Ischemic Heart Disease	0
Depression	75
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Mary A. Merlo, APRN, CNP treated as a nurse in Orland Park, IL during 2016 were hospital care and inpatient care.

Volume of procedures performed by Mary A. Merlo, APRN, CNP for Medicare patients.

hospital care	85
inpatient care	85

2016 Medicare Patient Data

Information about Medicare patients treated by Mary A. Merlo, APRN, CNP.

**Gender**
Male	24
Female	35

**Age**
From 65 to 74	0
From 75 to 84	13
85 and over	0
Less than 65	31

Conditions of Medicare patients treated by Mary A. Merlo, APRN, CNP in 2016

The most common conditions of Medicare patients that Mary A. Merlo, APRN, CNP treated during 2016 were depression, hypertension, high cholesterol and chronic kidney disease.

Hypertension	66
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	32
Depression	75
Chronic Kidney Disease	37
Asthma	27
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	25
Chronic Obstructive Pulmonary Disease	20
Diabetes	31
Dementia	34
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Mary A. Merlo, APRN, CNP treated as a nurse in Orland Park, IL during 2017 were blood draw and lab tests.

Volume of procedures performed by Mary A. Merlo, APRN, CNP for Medicare patients.

blood draw	24
doctor visit	195
lab tests	20

2017 Medicare Patient Data

Information about Medicare patients treated by Mary A. Merlo, APRN, CNP.

**Gender**
Male	46
Female	132

**Ethnicity**
Non-Hispanic White	163
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	55
85 and over	21
Less than 65	16

Conditions of Medicare patients treated by Mary A. Merlo, APRN, CNP in 2017

The most common conditions of Medicare patients that Mary A. Merlo, APRN, CNP treated during 2017 were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	63
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	30
Depression	19
Chronic Kidney Disease	15
Asthma	0
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	15
Chronic Obstructive Pulmonary Disease	12
Diabetes	20
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Mary A. Merlo, APRN, CNP treated as a nurse in Orland Park, IL during 2018 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Mary A. Merlo, APRN, CNP for Medicare patients.

blood draw	35
doctor visit	425
lab tests	44
preventive care	12
vaccines	12

2018 Medicare Patient Data

Information about Medicare patients treated by Mary A. Merlo, APRN, CNP.

**Gender**
Male	99
Female	274

**Ethnicity**
Non-Hispanic White	348
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	173
From 75 to 84	107
85 and over	71
Less than 65	22

Conditions of Medicare patients treated by Mary A. Merlo, APRN, CNP in 2018

The most common conditions of Medicare patients that Mary A. Merlo, APRN, CNP treated during 2018 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	70
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	35
Depression	22
Chronic Kidney Disease	27
Asthma	5
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	16
Diabetes	25
Dementia	12
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Mary A. Merlo, APRN, CNP treated as a nurse in Orland Park, IL during 2019 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Mary A. Merlo, APRN, CNP for Medicare patients.

blood draw	37
doctor visit	558
lab tests	50
preventive care	21
vaccines	21

2019 Medicare Patient Data

Information about Medicare patients treated by Mary A. Merlo, APRN, CNP.

**Gender**
Male	134
Female	329

**Ethnicity**
Non-Hispanic White	434
Black	0
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	144
85 and over	65
Less than 65	49

Conditions of Medicare patients treated by Mary A. Merlo, APRN, CNP in 2019

The most common conditions of Medicare patients that Mary A. Merlo, APRN, CNP treated during 2019 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	69
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	30
Depression	18
Chronic Kidney Disease	26
Asthma	6
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	26
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Mary A. Merlo, APRN, CNP treated as a nurse in Orland Park, IL during 2020 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Mary A. Merlo, APRN, CNP for Medicare patients.

blood draw	42
diabetes management	12
doctor visit	591
lab tests	69
preventive care	31
vaccines	19

2020 Medicare Patient Data

Information about Medicare patients treated by Mary A. Merlo, APRN, CNP.

**Gender**
Male	166
Female	361

**Ethnicity**
Non-Hispanic White	493
Black	0
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	229
From 75 to 84	161
85 and over	87
Less than 65	50

Conditions of Medicare patients treated by Mary A. Merlo, APRN, CNP in 2020

The most common conditions of Medicare patients that Mary A. Merlo, APRN, CNP treated during 2020 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	65
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	32
Depression	18
Chronic Kidney Disease	29
Asthma	8
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Dementia	8
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Mary A. Merlo, APRN, CNP treated as a nurse in Orland Park, IL during 2021 were blood draw, lab tests, preventive care and diabetes management.

Volume of procedures performed by Mary A. Merlo, APRN, CNP for Medicare patients.

blood draw	96
diabetes management	24
doctor visit	597
lab tests	79
preventive care	46
vaccines	22

2021 Medicare Patient Data

Information about Medicare patients treated by Mary A. Merlo, APRN, CNP.

**Gender**
Male	141
Female	400

**Ethnicity**
Non-Hispanic White	507
Black	0
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	229
From 75 to 84	164
85 and over	64
Less than 65	84

Conditions of Medicare patients treated by Mary A. Merlo, APRN, CNP in 2021

The most common conditions of Medicare patients that Mary A. Merlo, APRN, CNP treated during 2021 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	61
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	31
Depression	20
Chronic Kidney Disease	27
Asthma	7
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	19
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Mary A. Merlo, APRN, CNP treated as a nurse in Orland Park, IL during 2022 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Mary A. Merlo, APRN, CNP for Medicare patients.

blood draw	31
doctor visit	598
lab tests	45
preventive care	26
vaccines	26

2022 Medicare Patient Data

Information about Medicare patients treated by Mary A. Merlo, APRN, CNP.

**Gender**
Male	160
Female	386

**Ethnicity**
Non-Hispanic White	502
Black	14
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	233
From 75 to 84	162
85 and over	69
Less than 65	82

Conditions of Medicare patients treated by Mary A. Merlo, APRN, CNP in 2022

The most common conditions of Medicare patients that Mary A. Merlo, APRN, CNP treated during 2022 were high cholesterol, hypertension, ischemic heart disease and diabetes.

Hypertension	66
High Cholesterol	68
Stroke	7
Ischemic Heart Disease	25
Depression	18
Chronic Kidney Disease	16
Asthma	8
Osteoperosis	15
Atrial Fibrilation	16
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	19
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Mary A. Merlo, APRN, CNP treated as a nurse in Orland Park, IL during 2023 were lab tests, preventive care and vaccines.

Volume of procedures performed by Mary A. Merlo, APRN, CNP for Medicare patients.

doctor visit	402
lab tests	21
preventive care	21
vaccines	21

2023 Medicare Patient Data

Information about Medicare patients treated by Mary A. Merlo, APRN, CNP.

**Gender**
Male	109
Female	275

**Ethnicity**
Non-Hispanic White	350
Black	18
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	178
From 75 to 84	105
85 and over	33
Less than 65	68

Conditions of Medicare patients treated by Mary A. Merlo, APRN, CNP in 2023

The most common conditions of Medicare patients that Mary A. Merlo, APRN, CNP treated during 2023 were high cholesterol, hypertension, depression and ischemic heart disease.

Hypertension	64
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	20
Depression	20
Chronic Kidney Disease	15
Asthma	9
Osteoperosis	14
Atrial Fibrilation	13
Heart Failure	10
Chronic Obstructive Pulmonary Disease	13
Diabetes	18
Dementia	3
Cancer	11

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2015 - 2023

Volume of procedures performed by Mary A. Merlo, APRN, CNP for Medicare patients.

The highest averages for the top procedures that Mary A. Merlo, APRN, CNP treated as a nurse in Orland Park, IL were hospital care, inpatient care, lab tests and blood draw.

blood draw	44
diabetes management	18
doctor visit	480
hospital care	60
inpatient care	60
lab tests	46
preventive care	26
vaccines	20

Average Medicare Patient Data From 2015 - 2023

Information about Medicare patients treated by Mary A. Merlo, APRN, CNP.

**Gender**
Male	97
Female	243

**Ethnicity**
Black / African American	3
Asian / Pacific Islander	0
Non-Hispanic White	310
Native American / Alaskan Native	0
Hispanic	7
Other	0

**Age**
75 to 84	101
85 and over	45
Less than 65	44
65 to 74	148

Average of Total of Conditions of Medicare patients treated by Mary A. Merlo, APRN, CNP From 2015 - 2023

The highest averages of the most common conditions of Medicare patients that Mary A. Merlo, APRN, CNP treated were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension	66
High Cholesterol	58
Stroke	2
Ischemic Heart Disease	26
Depression	31
Chronic Kidney Disease	21
Asthma	7
Osteoporosis	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	12
Diabetes	20
Atrial Fibrillation	10
Cancer	8
Dementia	9

Education & Training

She has a state license in Illinois.

Licensed In: Illinois

Affiliations & Hospitals

Mary A. Merlo, APRN, CNP is associated with these hospitals and organizations:

Northwestern Medicine

Northwestern Medical Group (NMG)

CENTRAL DUPAGE PHYSICIAN GROUP

Ratings & Reviews

Mary A. Merlo, APRN, CNP has an exceptional overall rating with an average of 4.96 out of 5 stars based on 100 ratings. We collect ratings and reviews of Mary A. Merlo, APRN, CNP from all over the web to help you find the right in Orland Park, IL.

4.96

Overall Rating

(100 Ratings)

Leave a Review

General Payments

These charts describe general payments received by Mary A. Merlo, APRN, CNP. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Boston Scientific Corporation	$14 SOLYX SIS SYSTEM $14

**Types of Payments**
Food and Beverage	$14

Biography

Ms. Mary Merlo specializes in family medicine and urgent care and practices in Orland Park, IL. Her average rating from her patients is 5.0 stars (out of 5). Ms. Merlo is affiliated with Northwestern Medical Group (NMG).