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Dr. Mary R. Kwaan, MPH, MD

Accepting New Patients

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Specializes in: Colon & Rectal Surgery

Professional interests include: kidney problems, inflammatory bowel disease, colorectal surgery procedures, and more.

200 Ucla Medical Plaza Suite 214
Los Angeles, CA 90095

(310) 794-7788

Dr. Mary R. Kwaan, MPH, MD is a colon and rectal surgeon in Los Angeles, CA specializing in colon & rectal surgery. Dr. Mary R. Kwaan, MPH, MD is affiliated with UCLA Health, Ronald Reagan UCLA Medical Center and UCLA Santa Monica Medical Center.

Office Locations

100 Medical Plaza Suite 345
Los Angeles, CA 90024

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100 Medical Plaza Suite 345
Los Angeles, CA 90095

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1223 16th Street Suite 3400
Santa Monica, CA 90404

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Unable to locate address.

200 Ucla Medical Plaza Suite 214
Los Angeles, CA 90095

(310) 794-7788

(310) 794-4337

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Noteworthy Medicare Patient Procedures Performed by Dr. Mary R. Kwaan, MPH, MD in 2024

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

Top 25%

By Volume:

standard anoscopy

By Affordability:

gastrointestinal procedures

minimally invasive procedures

In 2012, among providers in related specialties within California, Dr. Mary R. Kwaan, MPH, MD performed more standard anoscopy procedures for Medicare patients than 75% of them and she also had a list price for gastrointestinal procedures, and minimally invasive procedures 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

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

doctor visit	38

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mary R. Kwaan, MPH, MD treated as a colon and rectal surgeon in Los Angeles, CA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

doctor visit	54
hospital care	28
inpatient care	28

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	33
Female	44

**Age**
From 65 to 74	32
From 75 to 84	0
85 and over	0
Less than 65	29

Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD in 2013

Hypertension	56
High Cholesterol	38
Stroke	0
Ischemic Heart Disease	26
Depression	35
Chronic Kidney Disease	45
Asthma	17
Osteoperosis	0
Atrial Fibrilation	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	18
Diabetes	23
Dementia	0
Cancer	36

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mary R. Kwaan, MPH, MD treated as a colon and rectal surgeon in Los Angeles, CA during 2014 were hospital care, inpatient care, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

diagnostic procedures	11
doctor visit	42
gastrointestinal procedures	11
hospital care	37
inpatient care	37
minimally invasive procedures	11
removal of lesion (e.g. growth)	11

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	37
Female	53

**Ethnicity**
Non-Hispanic White	69
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	39
From 75 to 84	0
85 and over	0
Less than 65	40

Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD in 2014

Hypertension	63
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	27
Depression	41
Chronic Kidney Disease	52
Asthma	13
Osteoperosis	0
Atrial Fibrilation	14
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	26
Dementia	0
Cancer	36

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

doctor visit	44

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	64
Female	98

**Ethnicity**
Non-Hispanic White	136
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	36
From 75 to 84	0
85 and over	0
Less than 65	96

Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD in 2015

Hypertension	52
High Cholesterol	33
Stroke	0
Ischemic Heart Disease	21
Depression	48
Chronic Kidney Disease	54
Asthma	20
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	19
Chronic Obstructive Pulmonary Disease	14
Diabetes	26
Dementia	0
Cancer	30

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mary R. Kwaan, MPH, MD treated as a colon and rectal surgeon in Los Angeles, CA during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

doctor visit	54
hospital care	17
inpatient care	17

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	38
Female	70

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

**Age**
From 65 to 74	32
From 75 to 84	0
85 and over	0
Less than 65	48

Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD in 2016

Hypertension	58
High Cholesterol	37
Stroke	0
Ischemic Heart Disease	38
Depression	44
Chronic Kidney Disease	48
Asthma	20
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	19
Chronic Obstructive Pulmonary Disease	17
Diabetes	31
Dementia	11
Cancer	32

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mary R. Kwaan, MPH, MD treated as a colon and rectal surgeon in Los Angeles, CA during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

doctor visit	54
hospital care	29
inpatient care	29

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	35
Female	56

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

**Age**
From 65 to 74	25
From 75 to 84	0
85 and over	0
Less than 65	37

Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD in 2017

Hypertension	65
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	31
Depression	41
Chronic Kidney Disease	55
Asthma	18
Osteoperosis	13
Atrial Fibrilation	18
Heart Failure	23
Chronic Obstructive Pulmonary Disease	13
Diabetes	22
Dementia	12
Cancer	38

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mary R. Kwaan, MPH, MD treated as a colon and rectal surgeon in Los Angeles, CA during 2018 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

doctor visit	63
gastrointestinal procedures	26
minimally invasive procedures	26

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	35
Female	46

**Ethnicity**
Non-Hispanic White	45
Black	11
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	31
From 75 to 84	26
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD in 2018

Hypertension	57
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	37
Depression	38
Chronic Kidney Disease	44
Asthma	0
Osteoperosis	20
Atrial Fibrilation	0
Heart Failure	21
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	20
Cancer	23

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mary R. Kwaan, MPH, MD treated as a colon and rectal surgeon in Los Angeles, CA during 2019 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

doctor visit	93
gastrointestinal procedures	28
minimally invasive procedures	28

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	47
Female	62

**Ethnicity**
Non-Hispanic White	61
Black	14
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	42
From 75 to 84	28
85 and over	13
Less than 65	26

Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD in 2019

Hypertension	59
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	37
Depression	36
Chronic Kidney Disease	44
Asthma	12
Osteoperosis	17
Atrial Fibrilation	0
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	30
Dementia	12
Cancer	30

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mary R. Kwaan, MPH, MD treated as a colon and rectal surgeon in Los Angeles, CA during 2020 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

doctor visit	82
gastrointestinal procedures	30
minimally invasive procedures	30

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	52
Female	67

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

**Age**
From 65 to 74	64
From 75 to 84	30
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD in 2020

Hypertension	60
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	30
Depression	28
Chronic Kidney Disease	47
Asthma	11
Osteoperosis	13
Atrial Fibrilation	0
Heart Failure	16
Chronic Obstructive Pulmonary Disease	0
Diabetes	29
Dementia	0
Cancer	21

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mary R. Kwaan, MPH, MD treated as a colon and rectal surgeon in Los Angeles, CA during 2021 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

doctor visit	128
gastrointestinal procedures	54
hospital care	28
inpatient care	28
minimally invasive procedures	54

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	55
Female	94

**Ethnicity**
Non-Hispanic White	101
Black	15
Hispanic	0
Asian	13
Other	0
Native American	0

**Age**
From 65 to 74	82
From 75 to 84	35
85 and over	15
Less than 65	17

Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD in 2021

Hypertension	58
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	34
Depression	31
Chronic Kidney Disease	37
Asthma	11
Osteoperosis	23
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	8
Cancer	29

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mary R. Kwaan, MPH, MD treated as a colon and rectal surgeon in Los Angeles, CA during 2022 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

doctor visit	153
gastrointestinal procedures	55
minimally invasive procedures	55

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	59
Female	104

**Ethnicity**
Non-Hispanic White	109
Black	16
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	57
85 and over	20
Less than 65	22

Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD in 2022

Hypertension	64
High Cholesterol	70
Stroke	9
Ischemic Heart Disease	25
Depression	28
Chronic Kidney Disease	25
Asthma	12
Osteoperosis	30
Atrial Fibrilation	20
Heart Failure	18
Chronic Obstructive Pulmonary Disease	17
Diabetes	28
Dementia	9
Cancer	34

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mary R. Kwaan, MPH, MD treated as a colon and rectal surgeon in Los Angeles, CA during 2023 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

doctor visit	170
gastrointestinal procedures	69
minimally invasive procedures	69

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	68
Female	98

**Ethnicity**
Non-Hispanic White	107
Black	0
Hispanic	21
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	78
From 75 to 84	50
85 and over	11
Less than 65	27

Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD in 2023

Hypertension	67
High Cholesterol	73
Stroke	9
Ischemic Heart Disease	28
Depression	34
Chronic Kidney Disease	25
Asthma	14
Osteoperosis	29
Atrial Fibrilation	15
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	0
Cancer	37

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Mary R. Kwaan, MPH, MD treated as a colon and rectal surgeon in Los Angeles, CA during 2024 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

doctor visit	175
gastrointestinal procedures	67
minimally invasive procedures	67

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	62
Female	96

**Ethnicity**
Non-Hispanic White	117
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	69
From 75 to 84	53
85 and over	22
Less than 65	14

Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD in 2024

Hypertension	68
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	34
Depression	30
Chronic Kidney Disease	23
Asthma	14
Osteoperosis	30
Atrial Fibrilation	15
Heart Failure	20
Chronic Obstructive Pulmonary Disease	18
Diabetes	25
Dementia	0
Cancer	36

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Mary R. Kwaan, MPH, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mary R. Kwaan, MPH, MD treated as a colon and rectal surgeon in Los Angeles, CA were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

diagnostic procedures	11
doctor visit	88
gastrointestinal procedures	42
hospital care	27
inpatient care	27
minimally invasive procedures	42
removal of lesion (e.g. growth)	11

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD.

**Gender**
Male	45
Female	68

**Ethnicity**
Black / African American	4
Asian / Pacific Islander	3
Non-Hispanic White	75
Native American / Alaskan Native	0
Hispanic	7
Other	0

**Age**
75 to 84	21
85 and over	6
Less than 65	27
65 to 74	45

Average of Total of Conditions of Medicare patients treated by Dr. Mary R. Kwaan, MPH, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Mary R. Kwaan, MPH, MD treated were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	55
High Cholesterol	47
Stroke	2
Ischemic Heart Disease	28
Depression	33
Chronic Kidney Disease	38
Asthma	12
Osteoporosis	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	25
Atrial Fibrillation	9
Dementia	5
Cancer	29

Education & Training

She completed residency at Brigham and Women's Hospital. She is certified by the Surgery, American Board of Surgery and has a state license in California.

Residency: Brigham and Women's Hospital (2008)

Board Certification: Surgery, American Board of Surgery (2009)

Licensed In: California

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. Mary R. Kwaan, MPH, MD appears to accept the following insurance providers: Private Healthcare Systems (PHCS), Cigna, TRICARE, Aetna, Blue Shield of California, MultiPlan, Anthem, UnitedHealthcare, Medicare Advantage, Prime Health, First Health, HealthSmart, Centivo, Health Net of California and UFCM Health System.

Insurance Accepted by Provider includes:

According to our sources, Dr. Mary R. Kwaan, MPH, MD accepts the following insurance providers:

Private Healthcare Systems (PHCS)

Cigna

TRICARE

Aetna

Blue Shield of California

MultiPlan

Anthem

UnitedHealthcare

Medicare Advantage

Prime Health

First Health

HealthSmart

Centivo

Health Net of California

UFCM Health System

Ratings & Reviews

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General Payments

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

**Payments by Company**
PRESCIENT SURGICAL	$274 CleanCision $274
Biom'Up France SAS	$28 HEMOBLAST Bellows $28
CooperSurgical, Inc.	$20 WALLACH Cryosurgical Equipment $20

**Types of Payments**
Food and Beverage	$323

Biography

Dr. Mary Kwaan is a colon & rectal surgery specialist in Los Angeles, CA and Santa Monica, CA. Her areas of expertise include colorectal surgery procedures, inflammatory bowel disease, and kidney problems. She is professionally affiliated with Ronald Reagan UCLA Medical Center. Dr. Kwaan seems to be an in-network provider for Anthem, UnitedHealthcare, and Blue Cross/Blue Shield, as well as other insurance carriers. UCLA Health reports that Dr. Kwaan is accepting new patients at her office in Los Angeles, CA. Her training includes a residency program at Brigham and Women's Hospital. Her distinctions include: Top Doctors, Los Angeles Magazine; Southern California Super Doctors; and Mpls.St.Paul Magazine Top Doctors Rising Stars 2016 Edition.