Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > CA Providers

Dr. Mary M. O Neill, MD

(Dr. Mary Margaret Oneill, MD)

(5 Ratings)

Specializes in: Gynecology and Obstetrics

Creighton University School of Medicine (1985)

200 West Campbell Avenue
Campbell, CA 95008

(408) 583-0522

Dr. Mary M. O Neill, MD is a gynecologist in Campbell, CA specializing in gynecology and obstetrics. She graduated from Creighton University School of Medicine in 1985 and has 41 years of experience. Dr. Mary M. O Neill, MD is affiliated with Good Samaritan Hospital.

Office Locations

Good Samaritan Hospital

200 West Campbell Avenue
Campbell, CA 95008

(408) 583-0522

open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Mary M. O Neill, MD in 2023

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

Top 25%

By Volume:

breast exam

pelvic exam

In 2013, Dr. Mary M. O Neill, MD performed more breast exam, and pelvic exam procedures for Medicare patients than 75% of providers in related specialties within California.

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mary M. O Neill, MD treated as a gynecologist in Campbell, CA during 2013 were breast exam, gynecologic procedures, ultrasound (sonogram) and pelvic imaging.

Volume of procedures performed by Dr. Mary M. O Neill, MD for Medicare patients.

breast exam	99
doctor visit	77
gynecologic procedures	99
pelvic imaging	13
ultrasound (sonogram)	13
women's imaging	13

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. O Neill, MD.

**Gender**
Male	0
Female	149

**Ethnicity**
Non-Hispanic White	107
Black	0
Hispanic	22
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	41
85 and over	15
Less than 65	16

Conditions of Medicare patients treated by Dr. Mary M. O Neill, MD in 2013

The most common conditions of Medicare patients that Dr. Mary M. O Neill, MD treated during 2013 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	64
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	20
Depression	17
Chronic Kidney Disease	14
Asthma	9
Osteoperosis	15
Atrial Fibrilation	0
Heart Failure	10
Chronic Obstructive Pulmonary Disease	7
Diabetes	30
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mary M. O Neill, MD treated as a gynecologist in Campbell, CA during 2014 were breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Mary M. O Neill, MD for Medicare patients.

breast exam	81
doctor visit	67
gynecologic procedures	81

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. O Neill, MD.

**Gender**
Male	0
Female	116

**Ethnicity**
Non-Hispanic White	89
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	62
From 75 to 84	30
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. O Neill, MD in 2014

The most common conditions of Medicare patients that Dr. Mary M. O Neill, MD treated during 2014 were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	57
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	18
Depression	14
Chronic Kidney Disease	11
Asthma	9
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	9
Chronic Obstructive Pulmonary Disease	0
Diabetes	24
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mary M. O Neill, MD treated as a gynecologist in Campbell, CA during 2015 were breast exam, gynecologic procedures, preventive care and cytology.

Volume of procedures performed by Dr. Mary M. O Neill, MD for Medicare patients.

breast exam	92
cytology	18
doctor visit	131
gynecologic pathology	18
gynecologic procedures	92
preventive care	18

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. O Neill, MD.

**Gender**
Male	0
Female	280

**Ethnicity**
Non-Hispanic White	202
Black	0
Hispanic	36
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	152
From 75 to 84	94
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. O Neill, MD in 2015

The most common conditions of Medicare patients that Dr. Mary M. O Neill, MD treated during 2015 were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	56
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	21
Depression	15
Chronic Kidney Disease	20
Asthma	9
Osteoperosis	17
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	32
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mary M. O Neill, MD treated as a gynecologist in Campbell, CA during 2016 were breast exam, gynecologic procedures, preventive care and cytology.

Volume of procedures performed by Dr. Mary M. O Neill, MD for Medicare patients.

breast exam	76
cytology	19
doctor visit	161
gynecologic pathology	19
gynecologic procedures	76
pelvic imaging	11
preventive care	19
ultrasound (sonogram)	11
women's imaging	11

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. O Neill, MD.

**Gender**
Male	0
Female	127

**Ethnicity**
Non-Hispanic White	84
Black	0
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	68
From 75 to 84	41
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. O Neill, MD in 2016

The most common conditions of Medicare patients that Dr. Mary M. O Neill, MD treated during 2016 were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension	53
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	17
Depression	16
Chronic Kidney Disease	21
Asthma	10
Osteoperosis	17
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	29
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mary M. O Neill, MD treated as a gynecologist in Campbell, CA during 2017 were breast exam, gynecologic procedures, preventive care and cytology.

Volume of procedures performed by Dr. Mary M. O Neill, MD for Medicare patients.

breast exam	86
cytology	16
doctor visit	173
gynecologic pathology	16
gynecologic procedures	86
preventive care	16

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. O Neill, MD.

**Gender**
Male	0
Female	140

**Ethnicity**
Non-Hispanic White	104
Black	0
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	72
From 75 to 84	52
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. O Neill, MD in 2017

The most common conditions of Medicare patients that Dr. Mary M. O Neill, MD treated during 2017 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	58
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	23
Depression	16
Chronic Kidney Disease	22
Asthma	0
Osteoperosis	17
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	29
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mary M. O Neill, MD treated as a gynecologist in Campbell, CA during 2018 were breast exam, gynecologic procedures, preventive care and cytology.

Volume of procedures performed by Dr. Mary M. O Neill, MD for Medicare patients.

breast exam	75
cytology	12
doctor visit	176
gynecologic pathology	12
gynecologic procedures	75
preventive care	12

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. O Neill, MD.

**Gender**
Male	0
Female	133

**Ethnicity**
Non-Hispanic White	90
Black	0
Hispanic	24
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. O Neill, MD in 2018

The most common conditions of Medicare patients that Dr. Mary M. O Neill, MD treated during 2018 were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension	59
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	23
Depression	18
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	14
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	29
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mary M. O Neill, MD treated as a gynecologist in Campbell, CA during 2019 were breast exam, gynecologic procedures, preventive care and cytology.

Volume of procedures performed by Dr. Mary M. O Neill, MD for Medicare patients.

breast exam	94
cytology	14
doctor visit	157
gynecologic pathology	14
gynecologic procedures	94
preventive care	14

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. O Neill, MD.

**Gender**
Male	0
Female	150

**Ethnicity**
Non-Hispanic White	108
Black	0
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	46
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. O Neill, MD in 2019

The most common conditions of Medicare patients that Dr. Mary M. O Neill, MD treated during 2019 were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension	57
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	21
Depression	13
Chronic Kidney Disease	22
Asthma	11
Osteoperosis	21
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	0
Cancer	20

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mary M. O Neill, MD treated as a gynecologist in Campbell, CA during 2020 were breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Mary M. O Neill, MD for Medicare patients.

breast exam	46
doctor visit	116
gynecologic procedures	46

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. O Neill, MD.

**Gender**
Male	0
Female	93

**Ethnicity**
Non-Hispanic White	63
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	46
From 75 to 84	32
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. O Neill, MD in 2020

The most common conditions of Medicare patients that Dr. Mary M. O Neill, MD treated during 2020 were high cholesterol, hypertension, ischemic heart disease and diabetes.

Hypertension	55
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	32
Depression	20
Chronic Kidney Disease	25
Asthma	12
Osteoperosis	18
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	31
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mary M. O Neill, MD treated as a gynecologist in Campbell, CA during 2021 were breast exam, gynecologic procedures, preventive care and cytology.

Volume of procedures performed by Dr. Mary M. O Neill, MD for Medicare patients.

breast exam	76
cytology	15
doctor visit	152
gynecologic pathology	15
gynecologic procedures	76
preventive care	15

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. O Neill, MD.

**Gender**
Male	0
Female	124

**Ethnicity**
Non-Hispanic White	79
Black	0
Hispanic	15
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	67
From 75 to 84	38
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. O Neill, MD in 2021

The most common conditions of Medicare patients that Dr. Mary M. O Neill, MD treated during 2021 were high cholesterol, hypertension, diabetes and osteoperosis.

Hypertension	60
High Cholesterol	72
Stroke	0
Ischemic Heart Disease	21
Depression	19
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	25
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	27
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mary M. O Neill, MD treated as a gynecologist in Campbell, CA during 2022 were breast exam, gynecologic procedures, preventive care and cytology.

Volume of procedures performed by Dr. Mary M. O Neill, MD for Medicare patients.

breast exam	44
cytology	13
doctor visit	96
gynecologic pathology	13
gynecologic procedures	44
preventive care	13

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. O Neill, MD.

**Gender**
Male	0
Female	116

**Ethnicity**
Non-Hispanic White	79
Black	0
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	66
From 75 to 84	38
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. O Neill, MD in 2022

The most common conditions of Medicare patients that Dr. Mary M. O Neill, MD treated during 2022 were high cholesterol, hypertension, osteoperosis and cancer.

Hypertension	64
High Cholesterol	73
Stroke	0
Ischemic Heart Disease	13
Depression	10
Chronic Kidney Disease	11
Asthma	13
Osteoperosis	26
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	22
Dementia	0
Cancer	24

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mary M. O Neill, MD treated as a gynecologist in Campbell, CA during 2023 were breast exam, gynecologic procedures, preventive care and cytology.

Volume of procedures performed by Dr. Mary M. O Neill, MD for Medicare patients.

breast exam	72
cytology	14
doctor visit	99
gynecologic pathology	14
gynecologic procedures	72
preventive care	14

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary M. O Neill, MD.

**Gender**
Male	0
Female	110

**Ethnicity**
Non-Hispanic White	69
Black	0
Hispanic	0
Asian	21
Other	0
Native American	0

**Age**
From 65 to 74	67
From 75 to 84	28
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary M. O Neill, MD in 2023

The most common conditions of Medicare patients that Dr. Mary M. O Neill, MD treated during 2023 were high cholesterol, hypertension, osteoperosis and cancer.

Hypertension	59
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	20
Depression	18
Chronic Kidney Disease	11
Asthma	15
Osteoperosis	30
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	19
Dementia	0
Cancer	25

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Mary M. O Neill, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mary M. O Neill, MD treated as a gynecologist in Campbell, CA were breast exam, gynecologic procedures, preventive care and cytology.

breast exam	76
cytology	15
doctor visit	127
gynecologic pathology	15
gynecologic procedures	76
pelvic imaging	12
preventive care	15
ultrasound (sonogram)	12
women's imaging	12

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Mary M. O Neill, MD.

**Gender**
Male	0
Female	139

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	1
Non-Hispanic White	97
Hispanic	17
Native American / Alaskan Native	0
Other	1

**Age**
75 to 84	44
85 and over	1
Less than 65	1
65 to 74	75

Average of Total of Conditions of Medicare patients treated by Dr. Mary M. O Neill, MD From 2013 - 2023

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

Hypertension	58
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	20
Depression	16
Chronic Kidney Disease	18
Asthma	8
Osteoporosis	19
Heart Failure	1
Chronic Obstructive Pulmonary Disease	0
Diabetes	27
Atrial Fibrillation	0
Dementia	0
Cancer	16

Education & Training

Dr. Mary M. O Neill, MD graduated from Creighton University School of Medicine in 1985. She completed residency at Metropolitan Hospital. She has a state license in California.

Medical School: Creighton University School of Medicine (1985)

Residency: Metropolitan Hospital (1990)

Licensed In: California

Affiliations & Hospitals

Dr. Mary M. O Neill, MD is associated with these hospitals and organizations:

Good Samaritan Hospital

Ratings & Reviews

Dr. Mary M. O Neill, MD has a high overall rating with an average of 4.0 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. Mary M. O Neill, MD from all over the web to help you find the right in Campbell, CA.

Overall Rating

(5 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
AbbVie, Inc.	$125 Orilissa $125
Actavis Pharma Inc	$19 ESTRACE CREAM $19
MAYNE PHARMA COMMERCIAL LLC	$11 $11

**Types of Payments**
Food and Beverage	$155

Biography

Dr. Mary Oneill works as an obstetrics and gynecology. Patients rated her highly, giving her an average of 4.0 stars (out of 5). Dr. Oneill is affiliated with Good Samaritan Health System and Good Samaritan Hospital. After completing medical school at Creighton University School of Medicine, she performed her residency at Metropolitan Hospital. She speaks Spanish.