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Home > NC Providers > Obstetricians & Gynecologists: OB-GYNs

Dr. Efrain Perez-Rivera, MD

Accepting New Patients

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Specializes in: Obstetrics & Gynecology

Central University of the Caribbean School of Medicine (1980)

Professional interests include: pregnancy, anxiety, stress urinary incontinence, and more.

520 North Street
Smithfield, NC 27577

(919) 934-3015

Dr. Efrain Perez-Rivera, MD is an obstetrician and gynecologist in Smithfield, NC specializing in obstetrics & gynecology. He graduated from Central University of the Caribbean School of Medicine in 1980 and has 46 years of experience. Dr. Efrain Perez-Rivera, MD is affiliated with UNC Health, WakeMed Health & Hospitals and UNC Health Alliance UNC Health Johnston.

Office Locations

520 North Street
Smithfield, NC 27577

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2076 Highway 42 West Suite 110
Clayton, NC 27520

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UNC Health Alliance UNC Health Johnston

2076 Veterans Parkway Suite 110
Clayton, NC 27520

(919) 359-3050

(919) 359-1077

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Some issues Dr. Efrain Perez-Rivera, MD can help you with:

Anemia

Anemia is the most common blood disorder. It occurs when the body does not have enough red blood cells to carry oxygen to the tissues. Blood loss, insufficient red blood cell production, and red blood cell destruction are the three main causes of anemia. These issues may arise from such conditions as iron deficiency, heavy periods, ulcers, kidney disease, as well as some forms of cancer.

An individual with anemia will have the following symptoms: shortness of breath, weakness, dizziness, cold hands or feet, paleness, and irritability. Anemia is diagnosed when blood tests show low counts for hemoglobin, which is the protein responsible for carrying oxygen to different tissues throughout the body.

Treatments for anemia are dependent on the kind of anemia an individual has. For example, iron supplementation may correct iron deficiency anemia. For anemia caused by chronic kidney failure, chemotherapy treatments, and HIV/AIDS, a group of medications called erythropoiesis-stimulating agents may be prescribed.

Anxiety

Anxiety is a generic name given to a variety of conditions characterized by unusual amounts of fear and worry, especially unrealistic fears and tension. People who suffer from anxiety often are aware that their fears are irrational, but that knowledge does not make the feeling of being scared and anxious go away. To qualify as anxiety, symptoms must last for 6 months or more and interfere with the way a person lives their daily life. Some cases may be mild, where, for example, a person simply avoids certain situations. Other cases can be severe enough to be disabling.

Some of the specific conditions covered under the general label of anxiety include:

Generalized anxiety disorder
Obsessive-compulsive disorder
Phobias
Post-traumatic stress disorder
Social phobia
Panic disorder

Collectively, anxiety disorders are the most common mental health issues diagnosed in the United States -- even more common than depression. Women are more likely than men to be diagnosed with anxiety, and it is extremely common for a person with anxiety to have another illness at the same time, such as depression, a physical illness, or substance abuse.

Treatment for anxiety usually involves medication and psychotherapy together. Medications used may include antidepressants (which also work for anxiety), anti-anxiety medications, or beta blockers (which can be used to control the physical symptoms of anxiety). Psychotherapy can be useful to teach patients new ways of thinking and reacting so that they can manage their feelings of worry and fear. Support groups can also be very effective for anxiety, and they can be a form of treatment themselves for social phobias. Stress management, relaxation techniques, and meditation all help reduce feelings of anxiety or of being out of control. Finally, having a strong support network of family and friends is an excellent way to help manage the difficulties of life with anxiety.

Stress Urinary Incontinence

Stress urinary incontinence is a disorder in which the bladder leaks urine during activities that require exertion, such as lifting, laughing, coughing, and sneezing. Leakage occurs because the muscles responsible for holding urine have become weak. This type of incontinence will affect about one in three women at some point in their lives. It is particularly prevalent in women who have given birth vaginally, have been pregnant, are extremely overweight, or are in menopause. Although more women than men suffer from stress incontinence, men who have had prostate surgery are also at risk of developing this condition.

Treatments vary based on the severity of the incontinence. Mild to moderate leakage may be controlled by doing pelvic floor exercises, avoiding foods that can irritate the bladder, or taking medication. For severe incontinence, however, surgery may be necessary. The most common procedures for stress urinary incontinence are bladder suspension, artificial urinary sphincter surgery, and sling surgery.

Each of these procedures takes about an hour to an hour and a half. Patients will likely wake up with a catheter, a tube that drains urine, as swelling after surgery makes it difficult to urinate. Taking slow, short walks to keep the blood flow moving is usually encouraged within hours of the surgery. Although patients may return to work within seven to ten days after certain procedures, strenuous activities such as running and working out are not recommended for at least four to six weeks. In addition, patients should avoid lifting objects over 15 pounds for three months after any of these operations.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Efrain Perez-Rivera, MD treated as an obstetrician and gynecologist in Smithfield, NC during 2012 were ultrasound (sonogram), pelvic imaging, lab tests and women's imaging.

Volume of procedures performed by Dr. Efrain Perez-Rivera, MD for Medicare patients.

breast exam	20
cytology	17
doctor visit	124
gynecologic pathology	17
gynecologic procedures	20
lab tests	41
pelvic imaging	59
preventive care	17
ultrasound (sonogram)	59
women's imaging	35

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Efrain Perez-Rivera, MD treated as an obstetrician and gynecologist in Smithfield, NC during 2013 were lab tests, ultrasound (sonogram), pelvic imaging and women's imaging.

Volume of procedures performed by Dr. Efrain Perez-Rivera, MD for Medicare patients.

doctor visit	108
lab tests	34
pelvic imaging	24
ultrasound (sonogram)	24
women's imaging	24

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Efrain Perez-Rivera, MD.

**Gender**
Male	0
Female	59

**Ethnicity**
Non-Hispanic White	36
Black	12
Hispanic	11
Asian	0
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Efrain Perez-Rivera, MD in 2013

Hypertension	53
High Cholesterol	41
Stroke	0
Ischemic Heart Disease	27
Depression	37
Chronic Kidney Disease	20
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	24
Diabetes	44
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Efrain Perez-Rivera, MD treated as an obstetrician and gynecologist in Smithfield, NC during 2014 were ultrasound (sonogram), pelvic imaging, women's imaging and lab tests.

Volume of procedures performed by Dr. Efrain Perez-Rivera, MD for Medicare patients.

breast exam	12
doctor visit	135
gynecologic procedures	12
lab tests	27
pelvic imaging	65
ultrasound (sonogram)	65
women's imaging	35

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Efrain Perez-Rivera, MD.

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

**Age**
From 65 to 74	21
From 75 to 84	0
85 and over	0
Less than 65	31

Conditions of Medicare patients treated by Dr. Efrain Perez-Rivera, MD in 2014

Hypertension	66
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	28
Depression	33
Chronic Kidney Disease	20
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	23
Diabetes	36
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Efrain Perez-Rivera, MD treated as an obstetrician and gynecologist in Smithfield, NC during 2015 were ultrasound (sonogram), pelvic imaging, women's imaging and lab tests.

Volume of procedures performed by Dr. Efrain Perez-Rivera, MD for Medicare patients.

breast exam	13
cytology	12
doctor visit	155
gynecologic pathology	12
gynecologic procedures	13
lab tests	36
pelvic imaging	80
preventive care	12
ultrasound (sonogram)	80
women's imaging	42

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Efrain Perez-Rivera, MD.

**Gender**
Male	0
Female	160

**Ethnicity**
Non-Hispanic White	90
Black	44
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	50
From 75 to 84	0
85 and over	0
Less than 65	80

Conditions of Medicare patients treated by Dr. Efrain Perez-Rivera, MD in 2015

Hypertension	64
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	38
Depression	38
Chronic Kidney Disease	23
Asthma	21
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	16
Chronic Obstructive Pulmonary Disease	19
Diabetes	39
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Efrain Perez-Rivera, MD treated as an obstetrician and gynecologist in Smithfield, NC during 2016 were lab tests, ultrasound (sonogram), pelvic imaging and preventive care.

Volume of procedures performed by Dr. Efrain Perez-Rivera, MD for Medicare patients.

breast exam	17
cytology	16
doctor visit	153
gynecologic pathology	16
gynecologic procedures	17
lab tests	51
pelvic imaging	35
preventive care	29
ultrasound (sonogram)	35
women's imaging	20

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Efrain Perez-Rivera, MD.

**Gender**
Male	0
Female	71

**Ethnicity**
Non-Hispanic White	37
Black	14
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	27
From 75 to 84	0
85 and over	0
Less than 65	31

Conditions of Medicare patients treated by Dr. Efrain Perez-Rivera, MD in 2016

Hypertension	61
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	27
Depression	54
Chronic Kidney Disease	27
Asthma	28
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	20
Chronic Obstructive Pulmonary Disease	21
Diabetes	39
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Efrain Perez-Rivera, MD treated as an obstetrician and gynecologist in Smithfield, NC during 2017 were lab tests, ultrasound (sonogram), pelvic imaging and women's imaging.

Volume of procedures performed by Dr. Efrain Perez-Rivera, MD for Medicare patients.

doctor visit	136
lab tests	60
pelvic imaging	16
ultrasound (sonogram)	16
women's imaging	16

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Efrain Perez-Rivera, MD.

**Gender**
Male	0
Female	63

**Ethnicity**
Non-Hispanic White	34
Black	12
Hispanic	17
Asian	0
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Efrain Perez-Rivera, MD in 2017

Hypertension	67
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	29
Depression	44
Chronic Kidney Disease	24
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	40
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Efrain Perez-Rivera, MD treated as an obstetrician and gynecologist in Smithfield, NC during 2018 were lab tests.

Volume of procedures performed by Dr. Efrain Perez-Rivera, MD for Medicare patients.

doctor visit	106
lab tests	40

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Efrain Perez-Rivera, MD.

**Gender**
Male	0
Female	55

**Ethnicity**
Non-Hispanic White	23
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Efrain Perez-Rivera, MD in 2018

Hypertension	64
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	35
Depression	47
Chronic Kidney Disease	20
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

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Efrain Perez-Rivera, MD for Medicare patients.

doctor visit	66

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Efrain Perez-Rivera, MD.

**Gender**
Male	0
Female	31

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

**Age**
From 65 to 74	14
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Efrain Perez-Rivera, MD in 2019

Hypertension	48
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	39
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Efrain Perez-Rivera, MD for Medicare patients.

doctor visit	36

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Efrain Perez-Rivera, MD.

**Gender**
Male	0
Female	28

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

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	13

Conditions of Medicare patients treated by Dr. Efrain Perez-Rivera, MD in 2020

Hypertension	61
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	0
Depression	39
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	43
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Efrain Perez-Rivera, MD.

**Gender**
Male	0
Female	16

Conditions of Medicare patients treated by Dr. Efrain Perez-Rivera, MD in 2021

Hypertension	69
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
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

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Efrain Perez-Rivera, MD for Medicare patients.

doctor visit	26

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Efrain Perez-Rivera, MD.

**Gender**
Male	0
Female	25

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

**Age**
From 65 to 74	12
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Efrain Perez-Rivera, MD in 2022

Hypertension	60
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	44
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Efrain Perez-Rivera, MD for Medicare patients.

The highest averages for the top procedures that Dr. Efrain Perez-Rivera, MD treated as an obstetrician and gynecologist in Smithfield, NC were ultrasound (sonogram), pelvic imaging, lab tests and women's imaging.

breast exam	15
cytology	15
doctor visit	104
gynecologic pathology	15
gynecologic procedures	15
lab tests	41
pelvic imaging	46
preventive care	19
ultrasound (sonogram)	46
women's imaging	28

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Efrain Perez-Rivera, MD.

**Gender**
Male	0
Female	46

**Ethnicity**
Black / African American	7
Asian / Pacific Islander	0
Non-Hispanic White	25
Native American / Alaskan Native	0
Hispanic	7
Other	0

**Age**
75 to 84	0
85 and over	0
Less than 65	22
65 to 74	11

Average of Total of Conditions of Medicare patients treated by Dr. Efrain Perez-Rivera, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Efrain Perez-Rivera, MD treated were hypertension, high cholesterol, diabetes and depression.

Hypertension	55
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	16
Depression	26
Chronic Kidney Disease	12
Asthma	4
Osteoporosis	0
Heart Failure	3
Chronic Obstructive Pulmonary Disease	7
Diabetes	33
Atrial Fibrillation	0
Dementia	0
Cancer	0

Education & Training

Dr. Efrain Perez-Rivera, MD graduated from Central University of the Caribbean School of Medicine in 1980. He completed residency at San Juan Bautista Medical Center. He is certified by the American Board of Obstetrics and Gynecology and has a state license in North Carolina.

Medical School: Central University of the Caribbean School of Medicine (1980)

Residency: San Juan Bautista Medical Center

Board Certification: American Board of Obstetrics and Gynecology

Licensed In: North Carolina

Affiliations & Hospitals

Dr. Efrain Perez-Rivera, MD is associated with these hospitals and organizations:

UNC Health

WakeMed Health & Hospitals

UNC Health Alliance UNC Health Johnston

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Efrain Perez-Rivera, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Medical Device Business Services, Inc.	$1,077 ENSEAL $1,077
LSI SOLUTIONS INC	$990 FORNISEE $990
Coloplast Corp	$916 ALTIS $916
AbbVie Inc.	$627 LO LOESTRIN FE $166	Liletta $131	UBRELVY $114	ORIAHNN $109	Orilissa $97	Other $10
AbbVie, Inc.	$516 Orilissa $273	Lupron $176	Lupaneta $22	Humira $17	$29
Other	$4,737 Injectafer $391	Saxenda $259	Trintellix $234	Osphena $191	MD-Harmony Prenatal $160	Other $3,501

**Types of Payments**
Food and Beverage	$6,281
Travel and Lodging	$2,440
Education	$143

Biography

Dr. Efrain Perez's specialty is obstetrics & gynecology. These areas are among Dr. Perez's clinical interests: obesity, pain, and anemia. He is a graduate of Central University of Ecuador, Central University of the Caribbean School of Medicine, and the University of Puerto Rico School of Medicine and a graduate of San Juan Bautista Medical Center's residency program. He speaks Spanish. He is professionally affiliated with UNC Health and WakeMed Health & Hospitals. He welcomes new patients at his office inSmithfield, NC as reported by UNC Health.