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Home > CA Providers > Family Physicians & Family Medicine Specialists

Dr. Mary M. Koumas, DO

(3 Ratings)

Specializes in: Family Medicine

A.T. Still University, Kirksville College of Osteopathic Medicine (1978)

24401 Muirlands Boulevard
Lake Forest, CA

(949) 770-1950

Dr. Mary M. Koumas, DO is a family medicine practitioner in Lake Forest, CA specializing in family medicine. She graduated from A.T. Still University, Kirksville College of Osteopathic Medicine in 1978 and has 48 years of experience. Dr. Mary M. Koumas, DO is affiliated with Saddleback Medical Center and MemorialCare.

Office Locations

24401 Muirlands Boulevard
Lake Forest, CA

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24401 Muirlands Boulevard Suite #a
Lake Forest, CA 92630

(949) 770-1950

(949) 770-8599

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24401 Muirlands Boulevard Suite A, Lake
Forest, CA 92630

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mary M. Koumas, DO treated as a family medicine practitioner in Lake Forest, CA during 2012 were hospital care, inpatient care and lab tests.

Volume of procedures performed by Dr. Mary M. Koumas, DO for Medicare patients.

doctor visit	564
hospital care	101
inpatient care	101
lab tests	83

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mary M. Koumas, DO treated as a family medicine practitioner in Lake Forest, CA during 2013 were hospital care, inpatient care and lab tests.

Volume of procedures performed by Dr. Mary M. Koumas, DO for Medicare patients.

doctor visit	572
hospital care	141
inpatient care	141
lab tests	100

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. Koumas, DO.

**Gender**
Male	31
Female	100

**Ethnicity**
Non-Hispanic White	101
Black	0
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	48
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. Koumas, DO in 2013

Hypertension	60
High Cholesterol	69
Stroke	8
Ischemic Heart Disease	34
Depression	18
Chronic Kidney Disease	16
Asthma	10
Osteoperosis	19
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	16
Diabetes	37
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mary M. Koumas, DO treated as a family medicine practitioner in Lake Forest, CA during 2014 were hospital care, inpatient care and lab tests.

Volume of procedures performed by Dr. Mary M. Koumas, DO for Medicare patients.

doctor visit	460
hospital care	72
inpatient care	72
lab tests	58

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. Koumas, DO.

**Gender**
Male	29
Female	94

**Ethnicity**
Non-Hispanic White	97
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	54
From 75 to 84	48
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. Koumas, DO in 2014

Hypertension	64
High Cholesterol	72
Stroke	10
Ischemic Heart Disease	35
Depression	24
Chronic Kidney Disease	22
Asthma	9
Osteoperosis	20
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	36
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mary M. Koumas, DO treated as a family medicine practitioner in Lake Forest, CA during 2015 were hospital care, inpatient care, lab tests and preventive care.

Volume of procedures performed by Dr. Mary M. Koumas, DO for Medicare patients.

doctor visit	554
hospital care	149
inpatient care	149
lab tests	75
preventive care	12
vaccines	12

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. Koumas, DO.

**Gender**
Male	76
Female	194

**Ethnicity**
Non-Hispanic White	208
Black	0
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	144
From 75 to 84	92
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. Koumas, DO in 2015

Hypertension	62
High Cholesterol	72
Stroke	0
Ischemic Heart Disease	28
Depression	23
Chronic Kidney Disease	18
Asthma	16
Osteoperosis	14
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	37
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mary M. Koumas, DO treated as a family medicine practitioner in Lake Forest, CA during 2016 were hospital care, inpatient care, lab tests and preventive care.

Volume of procedures performed by Dr. Mary M. Koumas, DO for Medicare patients.

doctor visit	567
hospital care	229
inpatient care	229
lab tests	40
preventive care	19
vaccines	19

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. Koumas, DO.

**Gender**
Male	40
Female	105

**Ethnicity**
Non-Hispanic White	113
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	71
From 75 to 84	51
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. Koumas, DO in 2016

Hypertension	66
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	35
Depression	19
Chronic Kidney Disease	26
Asthma	18
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	35
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mary M. Koumas, DO treated as a family medicine practitioner in Lake Forest, CA during 2017 were hospital care, inpatient care, lab tests and preventive care.

Volume of procedures performed by Dr. Mary M. Koumas, DO for Medicare patients.

doctor visit	503
hospital care	120
inpatient care	120
lab tests	52
preventive care	15
vaccines	15

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. Koumas, DO.

**Gender**
Male	33
Female	98

**Ethnicity**
Non-Hispanic White	104
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	52
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. Koumas, DO in 2017

Hypertension	66
High Cholesterol	66
Stroke	8
Ischemic Heart Disease	37
Depression	22
Chronic Kidney Disease	32
Asthma	10
Osteoperosis	17
Atrial Fibrilation	11
Heart Failure	19
Chronic Obstructive Pulmonary Disease	15
Diabetes	33
Dementia	13
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mary M. Koumas, DO treated as a family medicine practitioner in Lake Forest, CA during 2018 were lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Mary M. Koumas, DO for Medicare patients.

doctor visit	481
lab tests	46
preventive care	22
vaccines	22

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. Koumas, DO.

**Gender**
Male	30
Female	84

**Ethnicity**
Non-Hispanic White	88
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	49
From 75 to 84	46
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. Koumas, DO in 2018

Hypertension	70
High Cholesterol	71
Stroke	0
Ischemic Heart Disease	30
Depression	18
Chronic Kidney Disease	25
Asthma	0
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	18
Chronic Obstructive Pulmonary Disease	14
Diabetes	36
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mary M. Koumas, DO treated as a family medicine practitioner in Lake Forest, CA during 2019 were lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Mary M. Koumas, DO for Medicare patients.

doctor visit	446
lab tests	38
preventive care	19
vaccines	19

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. Koumas, DO.

**Gender**
Male	30
Female	91

**Ethnicity**
Non-Hispanic White	90
Black	0
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	57
From 75 to 84	45
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. Koumas, DO in 2019

Hypertension	64
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	29
Depression	19
Chronic Kidney Disease	22
Asthma	11
Osteoperosis	13
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	13
Diabetes	35
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Mary M. Koumas, DO for Medicare patients.

doctor visit	363

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. Koumas, DO.

**Gender**
Male	25
Female	83

**Ethnicity**
Non-Hispanic White	79
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	50
From 75 to 84	43
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. Koumas, DO in 2020

Hypertension	58
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	28
Depression	14
Chronic Kidney Disease	19
Asthma	0
Osteoperosis	14
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	37
Dementia	15
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Mary M. Koumas, DO for Medicare patients.

doctor visit	390

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. Koumas, DO.

**Gender**
Male	33
Female	71

**Ethnicity**
Non-Hispanic White	74
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	41
From 75 to 84	43
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. Koumas, DO in 2021

Hypertension	56
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	25
Depression	19
Chronic Kidney Disease	22
Asthma	0
Osteoperosis	11
Atrial Fibrilation	0
Heart Failure	12
Chronic Obstructive Pulmonary Disease	0
Diabetes	35
Dementia	15
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mary M. Koumas, DO treated as a family medicine practitioner in Lake Forest, CA during 2022 were lab tests.

Volume of procedures performed by Dr. Mary M. Koumas, DO for Medicare patients.

doctor visit	376
lab tests	18

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. Koumas, DO.

**Gender**
Male	32
Female	73

**Ethnicity**
Non-Hispanic White	78
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	41
From 75 to 84	44
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. Koumas, DO in 2022

Hypertension	69
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	24
Depression	15
Chronic Kidney Disease	16
Asthma	0
Osteoperosis	15
Atrial Fibrilation	16
Heart Failure	11
Chronic Obstructive Pulmonary Disease	11
Diabetes	38
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mary M. Koumas, DO for Medicare patients.

The highest averages for the top procedures that Dr. Mary M. Koumas, DO treated as a family medicine practitioner in Lake Forest, CA were hospital care, inpatient care, lab tests and preventive care.

doctor visit	479
hospital care	135
inpatient care	135
lab tests	56
preventive care	17
vaccines	17

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mary M. Koumas, DO.

**Gender**
Male	32
Female	90

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	93
Native American / Alaskan Native	0
Hispanic	12
Other	0

**Age**
75 to 84	46
85 and over	0
Less than 65	0
65 to 74	57

Average of Total of Conditions of Medicare patients treated by Dr. Mary M. Koumas, DO From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Mary M. Koumas, DO treated were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	57
High Cholesterol	64
Stroke	3
Ischemic Heart Disease	27
Depression	17
Chronic Kidney Disease	19
Asthma	6
Osteoporosis	13
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	32
Atrial Fibrillation	9
Cancer	9
Dementia	10

Education & Training

Dr. Mary M. Koumas, DO graduated from A.T. Still University, Kirksville College of Osteopathic Medicine in 1978. She is certified by the Board Certification: American Osteopathic Association - Family Medicine and Osteopathic Manipulative Treatment-Family Medicine and has a state license in California.

Medical School: A.T. Still University, Kirksville College of Osteopathic Medicine (1978)

Board Certification: Board Certification: American Osteopathic Association - Family Medicine and Osteopathic Manipulative Treatment-Family Medicine

Licensed In: California

Affiliations & Hospitals

Dr. Mary M. Koumas, DO is associated with these hospitals and organizations:

Saddleback Medical Center

MemorialCare

Ratings & Reviews

Dr. Mary M. Koumas, DO has an average of 2.33 out of 5 stars based on 3 ratings. We collect ratings and reviews of Dr. Mary M. Koumas, DO from all over the web to help you find the right in Lake Forest, CA.

2.33

Overall Rating

(3 Ratings)

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General Payments

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

**Payments by Company**
Janssen Pharmaceuticals, Inc	$44 XARELTO $44
Aptalis Pharma US, Inc	$30 CANASA $30
AstraZeneca Pharmaceuticals LP	$28 BYDUREON PEN $28
Novo Nordisk Inc	$22 Victoza $22

**Types of Payments**
Food and Beverage	$94
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$30

Biography

Dr. Mary Koumas' area of specialization is family medicine. Dr. Koumas has received a 2.5 out of 5 star rating by her patients. She studied medicine at A.T. Still University, Kirksville College of Osteopathic Medicine. She is affiliated with Saddleback Medical Center.