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Home > TN Providers > Pathologists

Dr. Thomas F. O'Brien JR., MD

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Specializes in: Pathology

University of Tennessee Health Science Center College of Medicine

1211 Union Avenue Suite 300
Memphis, TN 38104

(901) 725-7551

Dr. Thomas F. O'Brien JR., MD is a pathologist in Memphis, TN specializing in pathology. He graduated from University of Tennessee Health Science Center College of Medicine. Dr. Thomas F. O'Brien JR., MD is affiliated with AmeriPath.

Office Locations

1211 Union Avenue Suite 300
Memphis, TN 38104

(901) 725-7551

(901) 725-9721

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3495 Hacks Cross Road
Memphis, TN 38125

(901) 526-7444

(901) 526-0791

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Noteworthy Medicare Patient Procedures Performed by Dr. Thomas F. O'Brien JR., MD in 2023

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

Top 25%

By Volume:

lab tests

In 2012, Dr. Thomas F. O'Brien JR., MD performed more lab tests procedures for Medicare patients than 75% of providers in related specialties within Tennessee.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Thomas F. O'Brien JR., MD treated as a pathologist in Memphis, TN during 2012 were lab tests, consultation and second opinions.

Volume of procedures performed by Dr. Thomas F. O'Brien JR., MD for Medicare patients.

consultation	118
lab tests	1015
second opinions	13

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Thomas F. O'Brien JR., MD treated as a pathologist in Memphis, TN during 2013 were lab tests, consultation and second opinions.

Volume of procedures performed by Dr. Thomas F. O'Brien JR., MD for Medicare patients.

consultation	405
lab tests	2827
second opinions	37

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. O'Brien JR., MD.

**Gender**
Male	1008
Female	1453

**Ethnicity**
Non-Hispanic White	1543
Black	877
Hispanic	0
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	975
From 75 to 84	653
85 and over	210
Less than 65	623

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2013

Hypertension	75
High Cholesterol	60
Stroke	8
Ischemic Heart Disease	45
Depression	25
Chronic Kidney Disease	42
Asthma	11
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	33
Chronic Obstructive Pulmonary Disease	25
Diabetes	43
Dementia	14
Cancer	26

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Thomas F. O'Brien JR., MD treated as a pathologist in Memphis, TN during 2014 were lab tests, consultation, cytology and second opinions.

Volume of procedures performed by Dr. Thomas F. O'Brien JR., MD for Medicare patients.

consultation	163
cytology	23
lab tests	1096
second opinions	17

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. O'Brien JR., MD.

**Gender**
Male	646
Female	991

**Ethnicity**
Non-Hispanic White	908
Black	692
Hispanic	0
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	672
From 75 to 84	378
85 and over	112
Less than 65	475

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2014

Hypertension	75
High Cholesterol	60
Stroke	9
Ischemic Heart Disease	44
Depression	26
Chronic Kidney Disease	46
Asthma	12
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	33
Chronic Obstructive Pulmonary Disease	24
Diabetes	45
Dementia	13
Cancer	25

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Thomas F. O'Brien JR., MD treated as a pathologist in Memphis, TN during 2015 were lab tests and consultation.

Volume of procedures performed by Dr. Thomas F. O'Brien JR., MD for Medicare patients.

consultation	132
lab tests	1214

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. O'Brien JR., MD.

**Gender**
Male	1216
Female	1668

**Ethnicity**
Non-Hispanic White	1582
Black	1242
Hispanic	0
Asian	0
Other	32
Native American	0

**Age**
From 65 to 74	1208
From 75 to 84	672
85 and over	216
Less than 65	788

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2015

Hypertension	75
High Cholesterol	58
Stroke	12
Ischemic Heart Disease	45
Depression	26
Chronic Kidney Disease	49
Asthma	18
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	33
Chronic Obstructive Pulmonary Disease	24
Diabetes	44
Dementia	14
Cancer	29

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Thomas F. O'Brien JR., MD treated as a pathologist in Memphis, TN during 2016 were lab tests, consultation and second opinions.

Volume of procedures performed by Dr. Thomas F. O'Brien JR., MD for Medicare patients.

consultation	239
lab tests	2250
second opinions	24

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. O'Brien JR., MD.

**Gender**
Male	741
Female	1130

**Ethnicity**
Non-Hispanic White	1068
Black	766
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	826
From 75 to 84	453
85 and over	139
Less than 65	453

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2016

Hypertension	75
High Cholesterol	57
Stroke	9
Ischemic Heart Disease	44
Depression	25
Chronic Kidney Disease	52
Asthma	25
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	31
Chronic Obstructive Pulmonary Disease	24
Diabetes	42
Dementia	13
Cancer	31

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Thomas F. O'Brien JR., MD treated as a pathologist in Memphis, TN during 2017 were lab tests, consultation and second opinions.

Volume of procedures performed by Dr. Thomas F. O'Brien JR., MD for Medicare patients.

consultation	202
lab tests	1840
second opinions	53

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. O'Brien JR., MD.

**Gender**
Male	767
Female	1032

**Ethnicity**
Non-Hispanic White	990
Black	775
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	811
From 75 to 84	438
85 and over	119
Less than 65	431

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2017

Hypertension	75
High Cholesterol	60
Stroke	11
Ischemic Heart Disease	47
Depression	26
Chronic Kidney Disease	54
Asthma	9
Osteoperosis	5
Atrial Fibrilation	14
Heart Failure	33
Chronic Obstructive Pulmonary Disease	25
Diabetes	45
Dementia	15
Cancer	27

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Thomas F. O'Brien JR., MD treated as a pathologist in Memphis, TN during 2018 were lab tests and consultation.

Volume of procedures performed by Dr. Thomas F. O'Brien JR., MD for Medicare patients.

consultation	105
lab tests	352

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. O'Brien JR., MD.

**Gender**
Male	261
Female	371

**Ethnicity**
Non-Hispanic White	380
Black	235
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	293
From 75 to 84	164
85 and over	48
Less than 65	127

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2018

Hypertension	75
High Cholesterol	64
Stroke	8
Ischemic Heart Disease	46
Depression	28
Chronic Kidney Disease	50
Asthma	8
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	32
Chronic Obstructive Pulmonary Disease	22
Diabetes	42
Dementia	15
Cancer	25

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Thomas F. O'Brien JR., MD treated as a pathologist in Memphis, TN during 2019 were lab tests.

Volume of procedures performed by Dr. Thomas F. O'Brien JR., MD for Medicare patients.

lab tests	822

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. O'Brien JR., MD.

**Gender**
Male	585
Female	784

**Ethnicity**
Non-Hispanic White	1124
Black	201
Hispanic	0
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	764
From 75 to 84	312
85 and over	37
Less than 65	256

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2019

Hypertension	74
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	37
Depression	23
Chronic Kidney Disease	25
Asthma	8
Osteoperosis	7
Atrial Fibrilation	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	5
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Thomas F. O'Brien JR., MD treated as a pathologist in Memphis, TN during 2020 were lab tests.

Volume of procedures performed by Dr. Thomas F. O'Brien JR., MD for Medicare patients.

lab tests	952

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. O'Brien JR., MD.

**Gender**
Male	757
Female	1044

**Ethnicity**
Non-Hispanic White	1448
Black	324
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	954
From 75 to 84	402
85 and over	44
Less than 65	401

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2020

Hypertension	75
High Cholesterol	61
Stroke	3
Ischemic Heart Disease	40
Depression	27
Chronic Kidney Disease	31
Asthma	7
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	14
Chronic Obstructive Pulmonary Disease	20
Diabetes	35
Dementia	6
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Thomas F. O'Brien JR., MD treated as a pathologist in Memphis, TN during 2021 were lab tests.

Volume of procedures performed by Dr. Thomas F. O'Brien JR., MD for Medicare patients.

lab tests	1338

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. O'Brien JR., MD.

**Gender**
Male	994
Female	1302

**Ethnicity**
Non-Hispanic White	1960
Black	298
Hispanic	0
Asian	0
Other	26
Native American	0

**Age**
From 65 to 74	1208
From 75 to 84	571
85 and over	56
Less than 65	461

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2021

Hypertension	75
High Cholesterol	65
Stroke	4
Ischemic Heart Disease	41
Depression	27
Chronic Kidney Disease	31
Asthma	6
Osteoperosis	8
Atrial Fibrilation	8
Heart Failure	13
Chronic Obstructive Pulmonary Disease	18
Diabetes	34
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Thomas F. O'Brien JR., MD treated as a pathologist in Memphis, TN during 2022 were lab tests.

Volume of procedures performed by Dr. Thomas F. O'Brien JR., MD for Medicare patients.

lab tests	871

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. O'Brien JR., MD.

**Gender**
Male	630
Female	719

**Ethnicity**
Non-Hispanic White	1162
Black	148
Hispanic	0
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	702
From 75 to 84	401
85 and over	41
Less than 65	205

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	31
Depression	22
Chronic Kidney Disease	16
Asthma	8
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	12
Chronic Obstructive Pulmonary Disease	21
Diabetes	33
Dementia	4
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Thomas F. O'Brien JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. Thomas F. O'Brien JR., MD treated as a pathologist in Memphis, TN were lab tests, consultation, second opinions and cytology.

consultation	194
cytology	23
lab tests	1325
second opinions	28

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Thomas F. O'Brien JR., MD.

**Gender**
Male	691
Female	954

**Ethnicity**
Black / African American	505
Asian / Pacific Islander	0
Non-Hispanic White	1105
Native American / Alaskan Native	0
Hispanic	1
Other	14

**Age**
75 to 84	404
85 and over	92
Less than 65	383
65 to 74	764

Average of Total of Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Thomas F. O'Brien JR., MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	68
High Cholesterol	56
Stroke	6
Ischemic Heart Disease	38
Depression	23
Chronic Kidney Disease	36
Asthma	10
Osteoporosis	6
Heart Failure	22
Chronic Obstructive Pulmonary Disease	19
Diabetes	35
Atrial Fibrillation	10
Dementia	9
Cancer	19

Education & Training

Dr. Thomas F. O'Brien JR., MD graduated from University of Tennessee Health Science Center College of Medicine. He completed residency at University of Tennessee Affiliated Hospitals. He is certified by the Board Certification: Anatomic Pathology and Clinical Pathology and has a state license in Tennessee.

Medical School: University of Tennessee Health Science Center College of Medicine

Residency: University of Tennessee Affiliated Hospitals

Board Certification: Board Certification: Anatomic Pathology and Clinical Pathology

Licensed In: Tennessee

Affiliations & Hospitals

Dr. Thomas F. O'Brien JR., MD is associated with these hospitals and organizations:

AmeriPath

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Thomas F. O'Brien JR., MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$125 FARXIGA $125
Genentech USA, Inc.	$120 $120
Genentech, Inc.	$116 $116
Alexion Pharmaceuticals, Inc.	$110 Kanuma $110
Roche Diagnostics Corporation	$52 RTD Digital Pathology and Workflow $29	TD VENTANA Workflow Solutions $24
Other	$19 $19

**Types of Payments**
Food and Beverage	$542

Research Payments

Dr. Thomas F. O'Brien JR., MD has received 1 research payments totaling $378.

Biography

Dr. Thomas O'Brien practices pathology. Dr. O'Brien is professionally affiliated with AmeriPath. His education and training includes medical school at the University of Tennessee Health Science Center College of Medicine and residency at a hospital affiliated with the University of Tennessee.

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Dr. Thomas F. O'Brien JR., MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Thomas F. O'Brien JR., MD in 2023

By Volume:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Thomas F. O'Brien JR., MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Biography

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