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Dr. Rex Monroe McCallum, FACR, MD

Accepting New Patients

(Dr. Rex McCallum, MD)

(496 Ratings)

Specializes in: Adult Rheumatology

Vanderbilt University School of Medicine (1980)

2351 Erwin Road
Durham, NC 27705

(919) 681-3937

Dr. Rex Monroe McCallum, FACR, MD is a rheumatologist in Durham, NC specializing in adult rheumatology. He graduated from Vanderbilt University School of Medicine in 1980 and has 46 years of experience. Dr. Rex Monroe McCallum, FACR, MD is affiliated with Duke Health and DUKE HEALTH INTEGRATED PRACTICE INC.

Office Locations

Duke Health

2351 Erwin Road
Durham, NC 27705

(919) 681-3937

open_in_new

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. Rex Monroe McCallum, FACR, MD for Medicare patients.

doctor visit	33

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD.

**Gender**
Male	13
Female	30

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

**Age**
From 65 to 74	19
From 75 to 84	11
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2013

The most common conditions of Medicare patients that Dr. Rex Monroe McCallum, FACR, MD treated during 2013 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	74
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	26
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. Rex Monroe McCallum, FACR, MD for Medicare patients.

doctor visit	69

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD.

**Gender**
Male	18
Female	34

**Ethnicity**
Non-Hispanic White	31
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	24
From 75 to 84	0
85 and over	0
Less than 65	16

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2014

The most common conditions of Medicare patients that Dr. Rex Monroe McCallum, FACR, MD treated during 2014 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	75
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	31
Depression	29
Chronic Kidney Disease	29
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	27
Chronic Obstructive Pulmonary Disease	0
Diabetes	38
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Rex Monroe McCallum, FACR, MD for Medicare patients.

doctor visit	74

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD.

**Gender**
Male	24
Female	72

**Ethnicity**
Non-Hispanic White	62
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2015

The most common conditions of Medicare patients that Dr. Rex Monroe McCallum, FACR, MD treated during 2015 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	75
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	33
Depression	25
Chronic Kidney Disease	33
Asthma	0
Osteoperosis	23
Atrial Fibrilation	0
Heart Failure	29
Chronic Obstructive Pulmonary Disease	0
Diabetes	29
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Dr. Rex Monroe McCallum, FACR, MD for Medicare patients.

doctor visit	70

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD.

**Gender**
Male	11
Female	30

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

**Age**
From 65 to 74	22
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2016

The most common conditions of Medicare patients that Dr. Rex Monroe McCallum, FACR, MD treated during 2016 were hypertension, depression, high cholesterol and chronic kidney disease.

Hypertension	71
High Cholesterol	37
Stroke	0
Ischemic Heart Disease	27
Depression	39
Chronic Kidney Disease	34
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. Rex Monroe McCallum, FACR, MD for Medicare patients.

doctor visit	74

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD.

**Gender**
Male	11
Female	28

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

**Age**
From 65 to 74	22
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2017

The most common conditions of Medicare patients that Dr. Rex Monroe McCallum, FACR, MD treated during 2017 were hypertension, chronic kidney disease, depression and high cholesterol.

Hypertension	64
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	0
Depression	36
Chronic Kidney Disease	36
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	28
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Rex Monroe McCallum, FACR, MD for Medicare patients.

doctor visit	37

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD.

**Gender**
Male	11
Female	21

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

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2018

The most common conditions of Medicare patients that Dr. Rex Monroe McCallum, FACR, MD treated during 2018 were hypertension, depression, high cholesterol and ischemic heart disease.

Hypertension	63
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	41
Depression	44
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	34
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Rex Monroe McCallum, FACR, MD for Medicare patients.

doctor visit	57

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD.

**Ethnicity**
Non-Hispanic White	23
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	18
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2019

The most common conditions of Medicare patients that Dr. Rex Monroe McCallum, FACR, MD treated during 2019 were hypertension, high cholesterol, ischemic heart disease and depression.

Hypertension	74
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	34
Depression	31
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

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Rex Monroe McCallum, FACR, MD for Medicare patients.

doctor visit	51

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD.

**Gender**
Male	16
Female	33

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

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2020

The most common conditions of Medicare patients that Dr. Rex Monroe McCallum, FACR, MD treated during 2020 were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension	69
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	29
Depression	35
Chronic Kidney Disease	22
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	24
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Rex Monroe McCallum, FACR, MD for Medicare patients.

doctor visit	148

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD.

**Gender**
Male	429
Female	600

**Ethnicity**
Non-Hispanic White	706
Black	159
Hispanic	121
Asian	18
Other	25
Native American	0

**Age**
From 65 to 74	532
From 75 to 84	249
85 and over	138
Less than 65	110

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2021

The most common conditions of Medicare patients that Dr. Rex Monroe McCallum, FACR, MD treated during 2021 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	50
High Cholesterol	39
Stroke	3
Ischemic Heart Disease	23
Depression	16
Chronic Kidney Disease	22
Asthma	4
Osteoperosis	7
Atrial Fibrilation	7
Heart Failure	15
Chronic Obstructive Pulmonary Disease	7
Diabetes	24
Dementia	11
Cancer	6

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Rex Monroe McCallum, FACR, MD for Medicare patients.

doctor visit	388

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD.

**Gender**
Male	86
Female	163

**Ethnicity**
Non-Hispanic White	185
Black	51
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	69
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2022

The most common conditions of Medicare patients that Dr. Rex Monroe McCallum, FACR, MD treated during 2022 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	75
High Cholesterol	68
Stroke	7
Ischemic Heart Disease	21
Depression	20
Chronic Kidney Disease	25
Asthma	16
Osteoperosis	21
Atrial Fibrilation	17
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Rex Monroe McCallum, FACR, MD treated as a rheumatologist in Durham, NC during 2023 were blood draw.

Volume of procedures performed by Dr. Rex Monroe McCallum, FACR, MD for Medicare patients.

blood draw	25
doctor visit	449

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD.

**Gender**
Male	77
Female	182

**Ethnicity**
Non-Hispanic White	187
Black	59
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	125
From 75 to 84	72
85 and over	17
Less than 65	45

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2023

The most common conditions of Medicare patients that Dr. Rex Monroe McCallum, FACR, MD treated during 2023 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	75
High Cholesterol	72
Stroke	5
Ischemic Heart Disease	20
Depression	18
Chronic Kidney Disease	23
Asthma	15
Osteoperosis	17
Atrial Fibrilation	15
Heart Failure	14
Chronic Obstructive Pulmonary Disease	16
Diabetes	26
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Rex Monroe McCallum, FACR, MD for Medicare patients.

The highest averages for the top procedures that Dr. Rex Monroe McCallum, FACR, MD treated as a rheumatologist in Durham, NC were blood draw.

blood draw	25
doctor visit	131

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD.

**Gender**
Male	63
Female	108

**Ethnicity**
Black / African American	24
Asian / Pacific Islander	1
Non-Hispanic White	115
Hispanic	11
Native American / Alaskan Native	0
Other	2

**Age**
85 and over	14
75 to 84	36
Less than 65	15
65 to 74	89

Average of Total of Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD From 2013 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Rex Monroe McCallum, FACR, MD treated were hypertension, high cholesterol, diabetes and depression.

Hypertension	69
High Cholesterol	50
Stroke	1
Ischemic Heart Disease	25
Depression	26
Chronic Kidney Disease	20
Asthma	3
Osteoporosis	6
Heart Failure	8
Chronic Obstructive Pulmonary Disease	3
Diabetes	27
Atrial Fibrillation	3
Cancer	2
Dementia	1

Education & Training

Dr. Rex Monroe McCallum, FACR, MD graduated from Vanderbilt University School of Medicine in 1980. He completed residency at Duke University Medical Center. He is certified by the American Board of Internal Med, Internal Medicine and has a state license in North Carolina.

Medical School: Vanderbilt University School of Medicine (1980)

Residency: Duke University Medical Center (1983)

Board Certification: American Board of Internal Med, Internal Medicine

Licensed In: North Carolina

Affiliations & Hospitals

Dr. Rex Monroe McCallum, FACR, MD is associated with these hospitals and organizations:

Duke Health

DUKE HEALTH INTEGRATED PRACTICE INC

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. Rex Monroe McCallum, FACR, MD appears to accept the following insurance providers: MedCost, Aetna Traditional Choice, Aetna Medicare PPO, BlueCross BlueShield of North Carolina, CIGNA Open Access Plus, WellCare, AmeriHealth, Medicare Part B, Medicare Advantage, AARP, CIGNA Open Access, United Healthcare PPO, United Healthcare POS, United Healthcare HMO, Aetna, Aetna Workers' Compensation, TRICARE Prime, United Healthcare, Aetna Open Choice PPO, TRICARE Prime Remote, Medicare, Medicaid, Humana, Cigna, TRICARE, Harvard Pilgrim Health Care, Aetna Managed Choice POS, Gateway Health Alliance, Aetna HMO, Alliance Health (*Beginning January 2026), *Duke HomeCare and Hospice does not participate in the plan., Duke Employee Plans, Blue Options (123, PPO, HSA), *Duke HomeCare and Hospice and mental health providers do not participate with the plan., Aetna Quality Point of Service (QPOS), Aetna Choice POS, Aetna Choice POS II, Duke Advantage (*Beginning January 2026), Aetna Medicare Value Plan (HMO), Blue Advantage (*Available in select counties only), Duke Options (*Beginning January 2026), Duke Basic, Duke USA (*Beginning January 2026), Ambetter, Experience Health, Aetna Select HMO, Aetna PCP Coordinated POS Plan, Blue Select, Blue Medicare (HMO, PPO)*, Aetna Limited Benefit Insurance PPO, Vaya Health (*Beginning January 2026), Healthy Blue, Trillium (*Beginning January 2026), Aetna Health Network Only, Aetna Health Network Option, All Savers Fully Insured, Blue Value (*Duke Health Lake Norman and Kernodle Clinics only), First Medicare Direct, Carolina Complete Health, Healthgram, All Savers Alternate Funding, Aetna Medicare Assure Plan (HMO D-SNP), Aetna/CVS Health, Aetna Elect Choice HMO, Aetna Open Access Elect Choice, Partners (*Beginning January 2026), Aetna Voluntary Indemnity Group Plan, Duke Select, Aetna Open Access HMO, Open Access Aetna Select, Aetna Open Access Managed Choice, NC State Employees Health Plan, Ambetter of North Carolina and United Medical Resources (UMR).

Insurance Accepted by Provider includes:

According to our sources, Dr. Rex Monroe McCallum, FACR, MD accepts the following insurance providers:

MedCost

Aetna Traditional Choice

Aetna Medicare PPO

BlueCross BlueShield of North Carolina

CIGNA Open Access Plus

WellCare

AmeriHealth

Medicare Part B

Medicare Advantage

AARP

CIGNA Open Access

United Healthcare PPO

United Healthcare POS

United Healthcare HMO

Aetna

Aetna Workers' Compensation

TRICARE Prime

United Healthcare

Aetna Open Choice PPO

TRICARE Prime Remote

Medicare

Medicaid

Humana

Cigna

TRICARE

Harvard Pilgrim Health Care

Aetna Managed Choice POS

Gateway Health Alliance

Aetna HMO

Alliance Health (*Beginning January 2026)

*Duke HomeCare and Hospice does not participate in the plan.

Duke Employee Plans

Blue Options (123, PPO, HSA)

*Duke HomeCare and Hospice and mental health providers do not participate with the plan.

Aetna Quality Point of Service (QPOS)

Aetna Choice POS, Aetna Choice POS II

Duke Advantage (*Beginning January 2026)

Aetna Medicare Value Plan (HMO)

Blue Advantage (*Available in select counties only)

Duke Options (*Beginning January 2026)

Duke Basic

Duke USA (*Beginning January 2026)

Ambetter

Experience Health

Aetna Select HMO

Aetna PCP Coordinated POS Plan

Blue Select

Blue Medicare (HMO, PPO)*

Aetna Limited Benefit Insurance PPO

Vaya Health (*Beginning January 2026)

Healthy Blue

Trillium (*Beginning January 2026)

Aetna Health Network Only, Aetna Health Network Option

All Savers Fully Insured

Blue Value (*Duke Health Lake Norman and Kernodle Clinics only)

First Medicare Direct

Carolina Complete Health

Healthgram

All Savers Alternate Funding

Aetna Medicare Assure Plan (HMO D-SNP)

Aetna/CVS Health

Aetna Elect Choice HMO, Aetna Open Access Elect Choice

Partners (*Beginning January 2026)

Aetna Voluntary Indemnity Group Plan

Duke Select

Aetna Open Access HMO, Open Access Aetna Select, Aetna Open Access Managed Choice

NC State Employees Health Plan

Ambetter of North Carolina

United Medical Resources (UMR)

Ratings & Reviews

Dr. Rex Monroe McCallum, FACR, MD has an exceptional overall rating with an average of 4.85 out of 5 stars based on 496 ratings. We collect ratings and reviews of Dr. Rex Monroe McCallum, FACR, MD from all over the web to help you find the right in Durham, NC.

4.85

Overall Rating

(496 Ratings)

Leave a Review

General Payments

These charts describe general payments received by Dr. Rex Monroe McCallum, FACR, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
GENZYME CORPORATION	$122 $122
AbbVie, Inc.	$25 Humira $25
Amgen Inc.	$23 $23
AbbVie Inc.	$23 Humira $23

**Types of Payments**
Food and Beverage	$194

Biography

Dr. Rex McCallum is an adult rheumatology specialist in Durham, NC. Patient reviews placed him at an average of 5.0 stars (out of 5). Dr. McCallum appears to be an in-network provider for Blue California, CIGNA Plans, TRICARE, and more. He attended medical school at Vanderbilt University School of Medicine. For his professional training, Dr. McCallum completed a residency program at Duke University Medical Center. He is professionally affiliated with Duke Health. According to Duke Health, Dr. McCallum is currently accepting new patients at his office in Durham, NC.

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Dr. Rex Monroe McCallum, FACR, MD

Office Locations

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Average Medicare Patient Data From 2013 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Rex Monroe McCallum, FACR, MD From 2013 - 2023

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

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