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Home > IA Providers > Family Physicians & Family Medicine Specialists

Dr. Tammy A. O'Brien, MD

Accepting New Patients

(4 Ratings)

Specializes in: Family Medicine

University of Iowa, Carver College of Medicine

500 8th Avenue
Southeast Cedar Rapids, IA 52401

(319) 364-8704

Dr. Tammy A. O'Brien, MD is a family medicine practitioner in Cedar Rapids, IA specializing in family medicine. She graduated from University of Iowa, Carver College of Medicine. Dr. Tammy A. O'Brien, MD is affiliated with Mercy Hospital, UnityPoint Health and St. Luke's Hospital.

Office Locations

500 8th Avenue Se
Cedar Rapids, IA 52401

(319) 364-8704

(319) 365-7747

open_in_new

500 8th Avenue
Southeast Cedar Rapids, IA 52401

(319) 364-8704

open_in_new

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

doctor visit	137

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Tammy A. O'Brien, MD treated as a family medicine practitioner in Cedar Rapids, IA during 2013 were lab tests.

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

doctor visit	152
lab tests	12

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	19
Female	79

**Age**
From 65 to 74	65
From 75 to 84	17
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tammy A. O'Brien, MD in 2013

Hypertension	38
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	0
Depression	13
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	30
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

doctor visit	120

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	18
Female	66

**Age**
From 65 to 74	51
From 75 to 84	21
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tammy A. O'Brien, MD in 2014

Hypertension	37
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	17
Depression	17
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	35
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Tammy A. O'Brien, MD treated as a family medicine practitioner in Cedar Rapids, IA during 2015 were preventive care and vaccines.

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

doctor visit	120
preventive care	29
vaccines	29

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	34
Female	162

**Age**
From 65 to 74	126
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tammy A. O'Brien, MD in 2015

Hypertension	45
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	24
Depression	16
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	31
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Tammy A. O'Brien, MD treated as a family medicine practitioner in Cedar Rapids, IA during 2016 were breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

breast exam	26
doctor visit	120
gynecologic procedures	26

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	21
Female	84

**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. Tammy A. O'Brien, MD in 2016

Hypertension	45
High Cholesterol	29
Stroke	0
Ischemic Heart Disease	12
Depression	14
Chronic Kidney Disease	10
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	32
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Tammy A. O'Brien, MD treated as a family medicine practitioner in Cedar Rapids, IA during 2017 were breast exam, gynecologic procedures, preventive care and vaccines.

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

breast exam	13
doctor visit	149
gynecologic procedures	13
preventive care	12
vaccines	12

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	26
Female	96

**Age**
From 65 to 74	71
From 75 to 84	36
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tammy A. O'Brien, MD in 2017

Hypertension	47
High Cholesterol	20
Stroke	0
Ischemic Heart Disease	19
Depression	20
Chronic Kidney Disease	17
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	9
Chronic Obstructive Pulmonary Disease	10
Diabetes	30
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

doctor visit	171

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	30
Female	106

**Age**
From 65 to 74	80
From 75 to 84	42
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tammy A. O'Brien, MD in 2018

Hypertension	43
High Cholesterol	37
Stroke	0
Ischemic Heart Disease	18
Depression	19
Chronic Kidney Disease	17
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	32
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Tammy A. O'Brien, MD treated as a family medicine practitioner in Cedar Rapids, IA during 2019 were lab tests, preventive care and diabetes management.

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

diabetes management	18
doctor visit	168
lab tests	30
preventive care	18

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	28
Female	114

**Age**
From 65 to 74	86
From 75 to 84	42
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tammy A. O'Brien, MD in 2019

Hypertension	49
High Cholesterol	37
Stroke	0
Ischemic Heart Disease	18
Depression	15
Chronic Kidney Disease	20
Asthma	8
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	33
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Tammy A. O'Brien, MD treated as a family medicine practitioner in Cedar Rapids, IA during 2020 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

diabetes management	16
doctor visit	163
lab tests	16
preventive care	45
vaccines	29

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	33
Female	118

**Age**
From 65 to 74	89
From 75 to 84	43
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tammy A. O'Brien, MD in 2020

Hypertension	43
High Cholesterol	38
Stroke	0
Ischemic Heart Disease	19
Depression	15
Chronic Kidney Disease	18
Asthma	0
Osteoperosis	9
Atrial Fibrilation	9
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	30
Dementia	0
Cancer	7

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Tammy A. O'Brien, MD treated as a family medicine practitioner in Cedar Rapids, IA during 2021 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

diabetes management	13
doctor visit	203
lab tests	13
preventive care	42
vaccines	29

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	82
Female	223

**Ethnicity**
Non-Hispanic White	292
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	167
From 75 to 84	93
85 and over	30
Less than 65	15

Conditions of Medicare patients treated by Dr. Tammy A. O'Brien, MD in 2021

Hypertension	38
High Cholesterol	31
Stroke	0
Ischemic Heart Disease	14
Depression	14
Chronic Kidney Disease	14
Asthma	5
Osteoperosis	8
Atrial Fibrilation	5
Heart Failure	9
Chronic Obstructive Pulmonary Disease	4
Diabetes	23
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Tammy A. O'Brien, MD treated as a family medicine practitioner in Cedar Rapids, IA during 2022 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

diabetes management	13
doctor visit	184
lab tests	13
preventive care	34
vaccines	21

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	44
Female	138

**Age**
From 65 to 74	108
From 75 to 84	54
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tammy A. O'Brien, MD in 2022

Hypertension	56
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	15
Depression	12
Chronic Kidney Disease	10
Asthma	7
Osteoperosis	16
Atrial Fibrilation	12
Heart Failure	10
Chronic Obstructive Pulmonary Disease	0
Diabetes	26
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Tammy A. O'Brien, MD treated as a family medicine practitioner in Cedar Rapids, IA during 2023 were preventive care, lab tests, diabetes management and vaccines.

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

diabetes management	19
doctor visit	186
lab tests	19
preventive care	32
vaccines	13

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	30
Female	117

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

Conditions of Medicare patients treated by Dr. Tammy A. O'Brien, MD in 2023

Hypertension	54
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	14
Depression	12
Chronic Kidney Disease	7
Asthma	0
Osteoperosis	18
Atrial Fibrilation	13
Heart Failure	10
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Tammy A. O'Brien, MD treated as a family medicine practitioner in Cedar Rapids, IA during 2024 were preventive care, lab tests, diabetes management and vaccines.

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

diabetes management	17
doctor visit	217
lab tests	17
preventive care	29
vaccines	12

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	35
Female	114

**Age**
From 65 to 74	91
From 75 to 84	40
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tammy A. O'Brien, MD in 2024

Hypertension	54
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	15
Depression	15
Chronic Kidney Disease	9
Asthma	0
Osteoperosis	16
Atrial Fibrilation	12
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	23
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Tammy A. O'Brien, MD for Medicare patients.

The highest averages for the top procedures that Dr. Tammy A. O'Brien, MD treated as a family medicine practitioner in Cedar Rapids, IA were preventive care, vaccines, breast exam and gynecologic procedures.

breast exam	19
diabetes management	16
doctor visit	160
gynecologic procedures	19
lab tests	17
preventive care	30
vaccines	20

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Tammy A. O'Brien, MD.

**Gender**
Male	30
Female	109

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	22
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	35
85 and over	2
Less than 65	1
65 to 74	83

Average of Total of Conditions of Medicare patients treated by Dr. Tammy A. O'Brien, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Tammy A. O'Brien, MD treated were hypertension, high cholesterol, diabetes and depression.

Hypertension	42
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	14
Depression	14
Chronic Kidney Disease	9
Asthma	1
Osteoporosis	5
Heart Failure	4
Chronic Obstructive Pulmonary Disease	1
Diabetes	26
Atrial Fibrillation	3
Cancer	6
Dementia	0

Education & Training

Dr. Tammy A. O'Brien, MD graduated from University of Iowa, Carver College of Medicine. She completed residency at Mercy Hospital. She is certified by the American Board of Family Practice and has a state license in Iowa.

Medical School: University of Iowa, Carver College of Medicine

Residency: Mercy Hospital

Board Certification: American Board of Family Practice

Licensed In: Iowa

Affiliations & Hospitals

Dr. Tammy A. O'Brien, MD is associated with these hospitals and organizations:

Mercy Hospital

UnityPoint Health

St. Luke's Hospital

Ratings & Reviews

Dr. Tammy A. O'Brien, MD has an exceptional overall rating with an average of 4.63 out of 5 stars based on 4 ratings. We collect ratings and reviews of Dr. Tammy A. O'Brien, MD from all over the web to help you find the right in Cedar Rapids, IA.

4.63

Overall Rating

(4 Ratings)

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Biography

Dr. Tammy O'Brien specializes in family medicine. She is professionally affiliated with UnityPoint Health, St. Luke's Hospital, and Mercy Hospital. Dr. O'Brien is a graduate of the University of Iowa, Carver College of Medicine. Her training includes a residency program at Mercy Hospital. Her practice in Southeast Cedar Rapids, IA is open to new patients as reported by UnityPoint Health.