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

Dr. Samuel M. Riddle III, MD

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Specializes in: Obstetrics & Gynecology

Medical University of South Carolina College of Medicine (1978)

115 N Sumter Street Suite 200
Sumter, SC 29150

(803) 775-8351

Dr. Samuel M. Riddle III, MD is an obstetrician and gynecologist in Sumter, SC specializing in obstetrics & gynecology. He graduated from Medical University of South Carolina College of Medicine in 1978 and has 48 years of experience. Dr. Samuel M. Riddle III, MD is affiliated with PRISMA HEALTH MEDICAL GROUP-MIDLANDS.

Office Locations

115 N Sumter Street Suite 200
Sumter, SC 29150

(803) 775-8351

(803) 774-1512

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Noteworthy Medicare Patient Procedures Performed by Dr. Samuel M. Riddle III, MD in 2023

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

Top 5%

By Affordability:

blood count tests

In 2023, Dr. Samuel M. Riddle III, MD had a list price for blood count tests that was lower than the list prices billed to Medicare by 95% of providers in related specialties within South Carolina. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 10%

By Affordability:

blood tests

hemoglobin test

In 2023, Dr. Samuel M. Riddle III, MD had a list price for blood tests, and hemoglobin test that was lower than the list prices billed to Medicare by 90% of providers in related specialties within South Carolina. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 25%

By Affordability:

In 2012, Dr. Samuel M. Riddle III, MD had a list price for breast exam, gynecologic exams, lab tests, and pelvic exam that was lower than the list prices billed to Medicare by 75% of providers in related specialties within South Carolina. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Samuel M. Riddle III, MD treated as an obstetrician and gynecologist in Sumter, SC during 2012 were lab tests, breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Samuel M. Riddle III, MD for Medicare patients.

breast exam	15
doctor visit	74
gynecologic procedures	15
lab tests	47

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Samuel M. Riddle III, MD treated as an obstetrician and gynecologist in Sumter, SC during 2013 were lab tests, breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Samuel M. Riddle III, MD for Medicare patients.

breast exam	20
doctor visit	39
gynecologic procedures	20
lab tests	54

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Samuel M. Riddle III, MD.

**Gender**
Male	0
Female	69

**Ethnicity**
Non-Hispanic White	42
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	39
From 75 to 84	0
85 and over	0
Less than 65	17

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2013

Hypertension	61
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	16
Depression	17
Chronic Kidney Disease	0
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

2014 Medicare Procedure Volume

The top procedures that Dr. Samuel M. Riddle III, MD treated as an obstetrician and gynecologist in Sumter, SC during 2014 were lab tests, breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Samuel M. Riddle III, MD for Medicare patients.

breast exam	12
doctor visit	97
gynecologic procedures	12
lab tests	62

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Samuel M. Riddle III, MD.

**Gender**
Male	0
Female	76

**Ethnicity**
Non-Hispanic White	48
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	35
From 75 to 84	25
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2014

Hypertension	75
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	18
Depression	22
Chronic Kidney Disease	14
Asthma	18
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	17
Diabetes	33
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Samuel M. Riddle III, MD treated as an obstetrician and gynecologist in Sumter, SC during 2015 were lab tests, breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Samuel M. Riddle III, MD for Medicare patients.

breast exam	15
doctor visit	97
gynecologic procedures	15
lab tests	30

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Samuel M. Riddle III, MD.

**Gender**
Male	0
Female	144

**Ethnicity**
Non-Hispanic White	102
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	28
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2015

Hypertension	65
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	15
Depression	0
Chronic Kidney Disease	0
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

2016 Medicare Procedure Volume

The top procedures that Dr. Samuel M. Riddle III, MD treated as an obstetrician and gynecologist in Sumter, SC during 2016 were lab tests, breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Samuel M. Riddle III, MD for Medicare patients.

breast exam	16
doctor visit	118
gynecologic procedures	16
lab tests	81

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Samuel M. Riddle III, MD.

**Gender**
Male	0
Female	96

**Ethnicity**
Non-Hispanic White	55
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	45
From 75 to 84	28
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2016

Hypertension	71
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	21
Depression	24
Chronic Kidney Disease	27
Asthma	22
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	15
Chronic Obstructive Pulmonary Disease	16
Diabetes	38
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Samuel M. Riddle III, MD treated as an obstetrician and gynecologist in Sumter, SC during 2017 were lab tests, ultrasound (sonogram), pelvic imaging and women's imaging.

Volume of procedures performed by Dr. Samuel M. Riddle III, MD for Medicare patients.

doctor visit	151
lab tests	53
pelvic imaging	24
ultrasound (sonogram)	24
women's imaging	13

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Samuel M. Riddle III, MD.

**Gender**
Male	0
Female	92

**Ethnicity**
Non-Hispanic White	53
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	43
From 75 to 84	22
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2017

Hypertension	74
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	16
Depression	26
Chronic Kidney Disease	30
Asthma	15
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Samuel M. Riddle III, MD treated as an obstetrician and gynecologist in Sumter, SC during 2018 were lab tests, ultrasound (sonogram), pelvic imaging and women's imaging.

Volume of procedures performed by Dr. Samuel M. Riddle III, MD for Medicare patients.

doctor visit	111
lab tests	27
pelvic imaging	15
ultrasound (sonogram)	15
women's imaging	15

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Samuel M. Riddle III, MD.

**Gender**
Male	0
Female	92

**Ethnicity**
Non-Hispanic White	50
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	40
From 75 to 84	0
85 and over	0
Less than 65	28

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2018

Hypertension	75
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	17
Depression	25
Chronic Kidney Disease	34
Asthma	15
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	12
Diabetes	34
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Samuel M. Riddle III, MD treated as an obstetrician and gynecologist in Sumter, SC during 2019 were lab tests.

Volume of procedures performed by Dr. Samuel M. Riddle III, MD for Medicare patients.

doctor visit	111
lab tests	27

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Samuel M. Riddle III, MD.

**Gender**
Male	0
Female	90

**Ethnicity**
Non-Hispanic White	54
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	40
From 75 to 84	25
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2019

Hypertension	75
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	22
Depression	33
Chronic Kidney Disease	34
Asthma	14
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	19
Chronic Obstructive Pulmonary Disease	18
Diabetes	29
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Samuel M. Riddle III, MD treated as an obstetrician and gynecologist in Sumter, SC during 2020 were lab tests.

Volume of procedures performed by Dr. Samuel M. Riddle III, MD for Medicare patients.

doctor visit	47
lab tests	20

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Samuel M. Riddle III, MD.

**Gender**
Male	0
Female	57

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

**Age**
From 65 to 74	28
From 75 to 84	0
85 and over	0
Less than 65	14

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2020

Hypertension	75
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	19
Depression	23
Chronic Kidney Disease	32
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

2021 Medicare Procedure Volume

The top procedures that Dr. Samuel M. Riddle III, MD treated as an obstetrician and gynecologist in Sumter, SC during 2021 were lab tests, ultrasound (sonogram), pelvic imaging and women's imaging.

Volume of procedures performed by Dr. Samuel M. Riddle III, MD for Medicare patients.

doctor visit	73
lab tests	19
pelvic imaging	14
ultrasound (sonogram)	14
women's imaging	14

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Samuel M. Riddle III, MD.

**Gender**
Male	0
Female	72

**Ethnicity**
Non-Hispanic White	39
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	35
From 75 to 84	20
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2021

Hypertension	75
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	25
Depression	26
Chronic Kidney Disease	32
Asthma	15
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	22
Chronic Obstructive Pulmonary Disease	26
Diabetes	35
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Samuel M. Riddle III, MD treated as an obstetrician and gynecologist in Sumter, SC during 2022 were lab tests.

Volume of procedures performed by Dr. Samuel M. Riddle III, MD for Medicare patients.

doctor visit	55
lab tests	18

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Samuel M. Riddle III, MD.

**Gender**
Male	0
Female	51

**Ethnicity**
Non-Hispanic White	32
Black	19
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	27
From 75 to 84	11
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	0
Depression	25
Chronic Kidney Disease	41
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	22
Chronic Obstructive Pulmonary Disease	24
Diabetes	43
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Samuel M. Riddle III, MD for Medicare patients.

The highest averages for the top procedures that Dr. Samuel M. Riddle III, MD treated as an obstetrician and gynecologist in Sumter, SC were lab tests, ultrasound (sonogram), pelvic imaging and breast exam.

breast exam	15
doctor visit	88
gynecologic procedures	15
lab tests	39
pelvic imaging	17
ultrasound (sonogram)	17
women's imaging	14

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Samuel M. Riddle III, MD.

**Gender**
Male	0
Female	76

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	0
Non-Hispanic White	46
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	14
85 and over	0
Less than 65	5
65 to 74	38

Average of Total of Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Samuel M. Riddle III, MD treated were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	65
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	15
Depression	20
Chronic Kidney Disease	22
Asthma	9
Osteoporosis	0
Heart Failure	8
Chronic Obstructive Pulmonary Disease	11
Diabetes	30
Atrial Fibrillation	0
Dementia	0
Cancer	2

Education & Training

Dr. Samuel M. Riddle III, MD graduated from Medical University of South Carolina College of Medicine in 1978. He has a state license in South Carolina.

Medical School: Medical University of South Carolina College of Medicine (1978)

Licensed In: South Carolina

Affiliations & Hospitals

Dr. Samuel M. Riddle III, MD is associated with these hospitals and organizations:

PRISMA HEALTH MEDICAL GROUP-MIDLANDS

Ratings & Reviews

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General Payments

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

**Payments by Company**
Covidien Sales LLC	$721 Vessel Sealing $721
AbbVie, Inc.	$340 Orilissa $179	Lupron $117	Humira $18	$26
Duchesnay USA Incorporated	$165 Osphena $118	Diclegis $47
Abbott Laboratories	$115 Healon Viscoelastics $115
Bayer HealthCare Pharmaceuticals Inc.	$109 Mirena $33	Essure $27	Kyleena $24	Skyla $24
Other	$923 THINPREP $75	MYFEMBREE $75	OFIRMEV $69	Vesicare $52	RS Harmony Test Related Products $52	Other $600

**Types of Payments**
Food and Beverage	$1,968
Travel and Lodging	$370
Education	$34

Biography

Dr. Samuel Riddle's specialty is obstetrics & gynecology. Dr. Riddle studied medicine at Medical University of South Carolina College of Medicine.

Select Year:

Dr. Samuel M. Riddle III, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Samuel M. Riddle III, MD in 2023

By Affordability:

By Affordability:

By Affordability:

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. Samuel M. Riddle III, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Samuel M. Riddle III, 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. Samuel M. Riddle III, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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