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Home > MI Providers > Internists & Internal Medicine Doctors

Mrs. Mary Chao, DO

(50 Ratings)

Specializes in: Internal Medicine (Adult Medicine)

Michigan State University College of Osteopathic Medicine

1540 Lake Lansing Road Suite 102
Lansing, MI 48912

(517) 913-3810

Mrs. Mary Chao, DO is an internist in Lansing, MI specializing in internal medicine (adult medicine). She graduated from Michigan State University College of Osteopathic Medicine. Mrs. Mary Chao, DO is affiliated with McLaren Health Care and McLaren Greater Lansing.

Office Locations

McLaren Health Care

1540 Lake Lansing Road Suite 102
Lansing, MI 48912

(517) 913-3810

(517) 913-3811

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Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Mrs. Mary Chao, DO treated as an internist in Lansing, MI during 2013 were hospital care, inpatient care, lab tests and preventive care.

Volume of procedures performed by Mrs. Mary Chao, DO for Medicare patients.

doctor visit	832
hospital care	929
inpatient care	893
lab tests	182
outpatient care	36
preventive care	72
vaccines	72

2013 Medicare Patient Data

Information about Medicare patients treated by Mrs. Mary Chao, DO.

**Gender**
Male	190
Female	401

**Ethnicity**
Non-Hispanic White	507
Black	56
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	226
From 75 to 84	169
85 and over	123
Less than 65	73

Conditions of Medicare patients treated by Mrs. Mary Chao, DO in 2013

The most common conditions of Medicare patients that Mrs. Mary Chao, DO treated during 2013 were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	71
Stroke	8
Ischemic Heart Disease	43
Depression	33
Chronic Kidney Disease	37
Asthma	14
Osteoperosis	12
Atrial Fibrilation	21
Heart Failure	35
Chronic Obstructive Pulmonary Disease	28
Diabetes	39
Dementia	22
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Mrs. Mary Chao, DO treated as an internist in Lansing, MI during 2014 were hospital care, inpatient care, lab tests and preventive care.

Volume of procedures performed by Mrs. Mary Chao, DO for Medicare patients.

doctor visit	803
hospital care	884
inpatient care	833
lab tests	145
outpatient care	51
preventive care	56
vaccines	56

2014 Medicare Patient Data

Information about Medicare patients treated by Mrs. Mary Chao, DO.

**Gender**
Male	184
Female	397

**Ethnicity**
Non-Hispanic White	491
Black	54
Hispanic	0
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	235
From 75 to 84	168
85 and over	117
Less than 65	61

Conditions of Medicare patients treated by Mrs. Mary Chao, DO in 2014

The most common conditions of Medicare patients that Mrs. Mary Chao, DO treated during 2014 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	75
High Cholesterol	74
Stroke	9
Ischemic Heart Disease	40
Depression	36
Chronic Kidney Disease	40
Asthma	13
Osteoperosis	15
Atrial Fibrilation	20
Heart Failure	30
Chronic Obstructive Pulmonary Disease	24
Diabetes	35
Dementia	24
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Mrs. Mary Chao, DO treated as an internist in Lansing, MI during 2015 were hospital care, inpatient care and outpatient care.

Volume of procedures performed by Mrs. Mary Chao, DO for Medicare patients.

doctor visit	989
hospital care	744
inpatient care	723
outpatient care	21

2015 Medicare Patient Data

Information about Medicare patients treated by Mrs. Mary Chao, DO.

**Gender**
Male	338
Female	868

**Ethnicity**
Non-Hispanic White	1016
Black	132
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	498
From 75 to 84	356
85 and over	202
Less than 65	150

Conditions of Medicare patients treated by Mrs. Mary Chao, DO in 2015

The most common conditions of Medicare patients that Mrs. Mary Chao, DO treated during 2015 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	69
Stroke	8
Ischemic Heart Disease	38
Depression	36
Chronic Kidney Disease	37
Asthma	17
Osteoperosis	12
Atrial Fibrilation	20
Heart Failure	30
Chronic Obstructive Pulmonary Disease	23
Diabetes	34
Dementia	22
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Mrs. Mary Chao, DO for Medicare patients.

doctor visit	1252

2016 Medicare Patient Data

Information about Medicare patients treated by Mrs. Mary Chao, DO.

**Gender**
Male	119
Female	401

**Ethnicity**
Non-Hispanic White	446
Black	39
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	249
From 75 to 84	138
85 and over	61
Less than 65	72

Conditions of Medicare patients treated by Mrs. Mary Chao, DO in 2016

The most common conditions of Medicare patients that Mrs. Mary Chao, DO treated during 2016 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	71
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	27
Depression	26
Chronic Kidney Disease	25
Asthma	22
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	29
Dementia	11
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Mrs. Mary Chao, DO for Medicare patients.

doctor visit	1127

2017 Medicare Patient Data

Information about Medicare patients treated by Mrs. Mary Chao, DO.

**Gender**
Male	93
Female	375

**Ethnicity**
Non-Hispanic White	387
Black	47
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	232
From 75 to 84	124
85 and over	42
Less than 65	70

Conditions of Medicare patients treated by Mrs. Mary Chao, DO in 2017

The most common conditions of Medicare patients that Mrs. Mary Chao, DO treated during 2017 were hypertension, high cholesterol, diabetes and depression.

Hypertension	69
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	23
Depression	25
Chronic Kidney Disease	23
Asthma	11
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Dementia	9
Cancer	7

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Mrs. Mary Chao, DO for Medicare patients.

doctor visit	1044

2018 Medicare Patient Data

Information about Medicare patients treated by Mrs. Mary Chao, DO.

**Gender**
Male	76
Female	368

**Ethnicity**
Non-Hispanic White	363
Black	42
Hispanic	0
Asian	17
Other	0
Native American	0

**Age**
From 65 to 74	223
From 75 to 84	121
85 and over	39
Less than 65	61

Conditions of Medicare patients treated by Mrs. Mary Chao, DO in 2018

The most common conditions of Medicare patients that Mrs. Mary Chao, DO treated during 2018 were hypertension, high cholesterol, diabetes and depression.

Hypertension	66
High Cholesterol	61
Stroke	3
Ischemic Heart Disease	22
Depression	24
Chronic Kidney Disease	21
Asthma	9
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	29
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Mrs. Mary Chao, DO for Medicare patients.

doctor visit	964

2019 Medicare Patient Data

Information about Medicare patients treated by Mrs. Mary Chao, DO.

**Gender**
Male	74
Female	330

**Ethnicity**
Non-Hispanic White	325
Black	36
Hispanic	16
Asian	15
Other	12
Native American	0

**Age**
From 65 to 74	216
From 75 to 84	99
85 and over	35
Less than 65	54

Conditions of Medicare patients treated by Mrs. Mary Chao, DO in 2019

The most common conditions of Medicare patients that Mrs. Mary Chao, DO treated during 2019 were hypertension, high cholesterol, diabetes and depression.

Hypertension	65
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	19
Depression	24
Chronic Kidney Disease	18
Asthma	8
Osteoperosis	10
Atrial Fibrilation	6
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	31
Dementia	8
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Mrs. Mary Chao, DO for Medicare patients.

doctor visit	504

2020 Medicare Patient Data

Information about Medicare patients treated by Mrs. Mary Chao, DO.

**Gender**
Male	45
Female	222

**Ethnicity**
Non-Hispanic White	222
Black	24
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	132
From 75 to 84	69
85 and over	21
Less than 65	45

Conditions of Medicare patients treated by Mrs. Mary Chao, DO in 2020

The most common conditions of Medicare patients that Mrs. Mary Chao, DO treated during 2020 were hypertension, high cholesterol, diabetes and depression.

Hypertension	66
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	19
Depression	23
Chronic Kidney Disease	17
Asthma	7
Osteoperosis	9
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	30
Dementia	9
Cancer	4

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Mrs. Mary Chao, DO for Medicare patients.

doctor visit	512

2021 Medicare Patient Data

Information about Medicare patients treated by Mrs. Mary Chao, DO.

**Gender**
Male	39
Female	166

**Ethnicity**
Non-Hispanic White	168
Black	20
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	98
From 75 to 84	53
85 and over	18
Less than 65	36

Conditions of Medicare patients treated by Mrs. Mary Chao, DO in 2021

The most common conditions of Medicare patients that Mrs. Mary Chao, DO treated during 2021 were hypertension, high cholesterol, diabetes and depression.

Hypertension	69
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	20
Depression	26
Chronic Kidney Disease	25
Asthma	8
Osteoperosis	10
Atrial Fibrilation	7
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	33
Dementia	5
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Mrs. Mary Chao, DO for Medicare patients.

doctor visit	501

2022 Medicare Patient Data

Information about Medicare patients treated by Mrs. Mary Chao, DO.

**Gender**
Male	48
Female	182

**Ethnicity**
Non-Hispanic White	190
Black	19
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	62
85 and over	25
Less than 65	42

Conditions of Medicare patients treated by Mrs. Mary Chao, DO in 2022

The most common conditions of Medicare patients that Mrs. Mary Chao, DO treated during 2022 were hypertension, high cholesterol, diabetes and depression.

Hypertension	73
High Cholesterol	67
Stroke	6
Ischemic Heart Disease	16
Depression	22
Chronic Kidney Disease	18
Asthma	12
Osteoperosis	15
Atrial Fibrilation	10
Heart Failure	9
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	5
Cancer	10

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

Volume of procedures performed by Mrs. Mary Chao, DO for Medicare patients.

doctor visit	481

2023 Medicare Patient Data

Information about Medicare patients treated by Mrs. Mary Chao, DO.

**Gender**
Male	55
Female	182

**Ethnicity**
Non-Hispanic White	198
Black	15
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	109
From 75 to 84	64
85 and over	24
Less than 65	40

Conditions of Medicare patients treated by Mrs. Mary Chao, DO in 2023

The most common conditions of Medicare patients that Mrs. Mary Chao, DO treated during 2023 were hypertension, high cholesterol, diabetes and depression.

Hypertension	68
High Cholesterol	59
Stroke	7
Ischemic Heart Disease	13
Depression	24
Chronic Kidney Disease	16
Asthma	11
Osteoperosis	18
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	11
Diabetes	27
Dementia	5
Cancer	8

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Mrs. Mary Chao, DO for Medicare patients.

The highest averages for the top procedures that Mrs. Mary Chao, DO treated as an internist in Lansing, MI were hospital care, inpatient care, lab tests and preventive care.

doctor visit	819
hospital care	852
inpatient care	816
lab tests	163
outpatient care	36
preventive care	64
vaccines	64

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Mrs. Mary Chao, DO.

**Gender**
Male	114
Female	353

**Ethnicity**
Black / African American	44
Asian / Pacific Islander	4
Non-Hispanic White	392
Native American / Alaskan Native	0
Hispanic	9
Other	1

**Age**
75 to 84	129
85 and over	64
Less than 65	64
65 to 74	210

Average of Total of Conditions of Medicare patients treated by Mrs. Mary Chao, DO From 2013 - 2023

The highest averages of the most common conditions of Medicare patients that Mrs. Mary Chao, DO treated were hypertension, high cholesterol, diabetes and depression.

Hypertension	70
High Cholesterol	62
Stroke	3
Ischemic Heart Disease	25
Depression	27
Chronic Kidney Disease	25
Asthma	12
Osteoporosis	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Atrial Fibrillation	12
Cancer	9
Dementia	11

Education & Training

Mrs. Mary Chao, DO graduated from Michigan State University College of Osteopathic Medicine. She completed residency at Ingham Regional Medical Center. She is certified by the American Osteopathic Board of Internal Medicine and has a state license in Michigan.

Medical School: Michigan State University College of Osteopathic Medicine

Residency: Ingham Regional Medical Center

Board Certification: American Osteopathic Board of Internal Medicine

Licensed In: Michigan

Affiliations & Hospitals

Mrs. Mary Chao, DO is associated with these hospitals and organizations:

McLaren Health Care

McLaren Greater Lansing

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.

Mrs. Mary Chao, DO appears to accept the following insurance providers: Aetna Medicare, Blue Cross and Blue Shield of Michigan, WellCare Medicare Advantage, Priority Health PPO, Priority Health, WellCare, Medicare Advantage, McLaren Health Advantage PPO, McLaren Health Plan, HAP PPO, HAP HMO, First Health PPO, United Healthcare, Medicare, Medicaid, Humana, Cigna, Molina Healthcare, TRICARE, Blue Care Network HMO, Aetna PPO, HMA) - PPO, HAP - D-SNP, Meridian - Ambetter - MarketPlace, Provider Networks of America LLC - PPO, BCCCP - County Health Plan (CHP), VACCN - Military, MediLodge (PNOA - PPO, Cofinity - PPO, Employee Benefit Logistics - PPO, HAP CareSource - MI Health Link, U of M Health Plan (PHP) - HMO, Aetna - D-SNP, VitalCore Physicians Group of Michigan - Special Arrangements, U of M Health Plan (PHP) - PPO, Michigan Amish - Special Arrangements, U of M Health Plan (PHP) - Marketplace and HAP CareSource - Marketplace.

Insurance Accepted by Provider includes:

According to our sources, Mrs. Mary Chao, DO accepts the following insurance providers:

Aetna Medicare

Blue Cross and Blue Shield of Michigan

WellCare Medicare Advantage

Priority Health PPO

Priority Health

WellCare

Medicare Advantage

McLaren Health Advantage PPO

McLaren Health Plan

HAP PPO

HAP HMO

First Health PPO

United Healthcare

Medicare

Medicaid

Humana

Cigna

Molina Healthcare

TRICARE

Blue Care Network HMO

Aetna PPO

HMA) - PPO

HAP - D-SNP

Meridian - Ambetter - MarketPlace

Provider Networks of America LLC - PPO

BCCCP - County Health Plan (CHP)

VACCN - Military

MediLodge (PNOA - PPO

Cofinity - PPO

Employee Benefit Logistics - PPO

HAP CareSource - MI Health Link

U of M Health Plan (PHP) - HMO

Aetna - D-SNP

VitalCore Physicians Group of Michigan - Special Arrangements

U of M Health Plan (PHP) - PPO

Michigan Amish - Special Arrangements

U of M Health Plan (PHP) - Marketplace

HAP CareSource - Marketplace

Ratings & Reviews

Mrs. Mary Chao, DO has an exceptional overall rating with an average of 4.88 out of 5 stars based on 50 ratings. We collect ratings and reviews of Mrs. Mary Chao, DO from all over the web to help you find the right in Lansing, MI.

4.88

Overall Rating

(50 Ratings)

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General Payments

These charts describe general payments received by Mrs. Mary Chao, DO. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Novo Nordisk Inc	$1,426 Ozempic $308	Tresiba $306	Saxenda $213	RYBELSUS $166	Victoza $150	Other $283
Lilly USA, LLC	$1,184 BASAGLAR $252	JARDIANCE $209	TRULICITY $190	GLYXAMBI $153	MOUNJARO $126	Other $254
AstraZeneca Pharmaceuticals LP	$710 FARXIGA $165	BYDUREON PEN $116	BYDUREON $112	SYMBICORT $93	AIRSUPRA $14	Other $208
Novartis Pharmaceuticals Corporation	$705 ENTRESTO $478	LEQVIO $119	Aimovig $101	$7
SANOFI-AVENTIS U.S. LLC	$682 TOUJEO $398	PRALUENT $124	LANTUS $77	SOLIQUA 100/33 $42	SOLIQUA $41
Other	$5,774 Vesicare $388	NURTEC ODT $339	TRELEGY ELLIPTA $267	ELIQUIS $238	INVOKANA $229	Other $4,314

**Types of Payments**
Food and Beverage	$10,400
Education	$80

Biography

Dr. Mary Chao specializes in general practice. She is affiliated with McLaren Greater Lansing. Before performing her residency at Ingham Regional Medical Center, Dr. Chao attended Michigan State University College of Osteopathic Medicine for medical school. Her average rating from her patients is 5.0 stars (out of 5). Blue California, Coventry, and TRICARE appears to be the insurance carriers that Dr. Chao takes.