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Home > SC Providers > Family Physicians & Family Medicine Specialists

Dr. Terence O. Lillis, MD

Accepting New Patients

(19 Ratings)

Specializes in: Family Medicine

West Virginia University School of Medicine (2004)

1338 Highway 14
Simpsonville, SC 29681

(864) 297-7091

Dr. Terence O. Lillis, MD is a family medicine practitioner in Simpsonville, SC specializing in family medicine. He graduated from West Virginia University School of Medicine in 2004 and has 22 years of experience. Dr. Terence O. Lillis, MD is affiliated with Bon Secours and Bon Secours - St. Francis Hospital.

Office Locations

1338 Highway 14
Simpsonville, SC 29681

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC during 2012 were preventive care and vaccines.

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

doctor visit	295
preventive care	11
vaccines	11

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC during 2013 were preventive care and vaccines.

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

doctor visit	300
preventive care	22
vaccines	22

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Terence O. Lillis, MD.

**Gender**
Male	49
Female	71

**Ethnicity**
Non-Hispanic White	103
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	46
From 75 to 84	24
85 and over	16
Less than 65	34

Conditions of Medicare patients treated by Dr. Terence O. Lillis, MD in 2013

Hypertension	58
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	33
Depression	24
Chronic Kidney Disease	13
Asthma	0
Osteoperosis	0
Atrial Fibrilation	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	18
Diabetes	29
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC during 2014 were preventive care and vaccines.

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

doctor visit	309
preventive care	23
vaccines	23

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Terence O. Lillis, MD.

**Gender**
Male	62
Female	70

**Ethnicity**
Non-Hispanic White	112
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	49
From 75 to 84	0
85 and over	0
Less than 65	49

Conditions of Medicare patients treated by Dr. Terence O. Lillis, MD in 2014

Hypertension	55
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	30
Depression	26
Chronic Kidney Disease	17
Asthma	0
Osteoperosis	0
Atrial Fibrilation	11
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	32
Dementia	10
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC during 2015 were preventive care and vaccines.

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

doctor visit	435
preventive care	56
vaccines	56

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Terence O. Lillis, MD.

**Gender**
Male	180
Female	228

**Ethnicity**
Non-Hispanic White	344
Black	0
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	78
85 and over	26
Less than 65	150

Conditions of Medicare patients treated by Dr. Terence O. Lillis, MD in 2015

Hypertension	57
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	23
Depression	29
Chronic Kidney Disease	18
Asthma	10
Osteoperosis	0
Atrial Fibrilation	6
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	23
Dementia	7
Cancer	7

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC during 2016 were preventive care and vaccines.

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

doctor visit	453
preventive care	67
vaccines	67

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Terence O. Lillis, MD.

**Gender**
Male	88
Female	125

**Ethnicity**
Non-Hispanic White	177
Black	0
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	37
85 and over	16
Less than 65	61

Conditions of Medicare patients treated by Dr. Terence O. Lillis, MD in 2016

Hypertension	64
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	27
Depression	22
Chronic Kidney Disease	23
Asthma	14
Osteoperosis	7
Atrial Fibrilation	7
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	34
Dementia	8
Cancer	7

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC during 2017 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

doctor visit	474
lab tests	14
preventive care	64
vaccines	64

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Terence O. Lillis, MD.

**Gender**
Male	99
Female	132

**Ethnicity**
Non-Hispanic White	199
Black	14
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	105
From 75 to 84	54
85 and over	14
Less than 65	58

Conditions of Medicare patients treated by Dr. Terence O. Lillis, MD in 2017

Hypertension	68
High Cholesterol	55
Stroke	5
Ischemic Heart Disease	31
Depression	23
Chronic Kidney Disease	26
Asthma	7
Osteoperosis	7
Atrial Fibrilation	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	16
Diabetes	35
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC during 2018 were preventive care and vaccines.

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

doctor visit	409
preventive care	72
vaccines	72

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Terence O. Lillis, MD.

**Gender**
Male	99
Female	100

**Ethnicity**
Non-Hispanic White	161
Black	17
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	104
From 75 to 84	0
85 and over	0
Less than 65	45

Conditions of Medicare patients treated by Dr. Terence O. Lillis, MD in 2018

Hypertension	65
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	25
Depression	20
Chronic Kidney Disease	23
Asthma	6
Osteoperosis	6
Atrial Fibrilation	8
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	8
Cancer	7

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC during 2019 were preventive care and vaccines.

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

doctor visit	365
preventive care	73
vaccines	73

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Terence O. Lillis, MD.

**Gender**
Male	98
Female	94

**Ethnicity**
Non-Hispanic White	157
Black	15
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	0
85 and over	0
Less than 65	49

Conditions of Medicare patients treated by Dr. Terence O. Lillis, MD in 2019

Hypertension	64
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	21
Depression	21
Chronic Kidney Disease	24
Asthma	0
Osteoperosis	6
Atrial Fibrilation	7
Heart Failure	15
Chronic Obstructive Pulmonary Disease	18
Diabetes	26
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC during 2020 were preventive care and vaccines.

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

doctor visit	275
preventive care	97
vaccines	84

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Terence O. Lillis, MD.

**Gender**
Male	100
Female	104

**Ethnicity**
Non-Hispanic White	173
Black	12
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	43
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Terence O. Lillis, MD in 2020

Hypertension	65
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	23
Depression	15
Chronic Kidney Disease	21
Asthma	0
Osteoperosis	8
Atrial Fibrilation	5
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	28
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC during 2021 were preventive care, vaccines, aspiration and injections.

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

aspiration	15
doctor visit	335
injections	15
preventive care	68
vaccines	68

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Terence O. Lillis, MD.

**Gender**
Male	118
Female	120

**Ethnicity**
Non-Hispanic White	206
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	125
From 75 to 84	59
85 and over	11
Less than 65	43

Conditions of Medicare patients treated by Dr. Terence O. Lillis, MD in 2021

Hypertension	53
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	24
Depression	14
Chronic Kidney Disease	18
Asthma	0
Osteoperosis	7
Atrial Fibrilation	6
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	21
Dementia	8
Cancer	7

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC during 2022 were blood draw.

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

blood draw	16
doctor visit	197

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Terence O. Lillis, MD.

**Gender**
Male	84
Female	82

**Ethnicity**
Non-Hispanic White	136
Black	19
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	84
From 75 to 84	40
85 and over	15
Less than 65	27

Conditions of Medicare patients treated by Dr. Terence O. Lillis, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	24
Depression	19
Chronic Kidney Disease	19
Asthma	7
Osteoperosis	13
Atrial Fibrilation	17
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	31
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC during 2023 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

blood draw	47
doctor visit	257
preventive care	24
vaccines	24

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Terence O. Lillis, MD.

**Gender**
Male	84
Female	81

**Ethnicity**
Non-Hispanic White	145
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	70
From 75 to 84	64
85 and over	17
Less than 65	14

Conditions of Medicare patients treated by Dr. Terence O. Lillis, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	18
Depression	24
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	16
Atrial Fibrilation	21
Heart Failure	13
Chronic Obstructive Pulmonary Disease	10
Diabetes	26
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Terence O. Lillis, MD for Medicare patients.

The highest averages for the top procedures that Dr. Terence O. Lillis, MD treated as a family medicine practitioner in Simpsonville, SC were preventive care, vaccines, blood draw and aspiration.

aspiration	15
blood draw	31
doctor visit	342
injections	15
lab tests	14
preventive care	52
vaccines	51

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Terence O. Lillis, MD.

**Gender**
Male	88
Female	100

**Ethnicity**
Black / African American	6
Asian / Pacific Islander	0
Non-Hispanic White	159
Hispanic	3
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	33
85 and over	9
Less than 65	44
65 to 74	87

Average of Total of Conditions of Medicare patients treated by Dr. Terence O. Lillis, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Terence O. Lillis, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	58
High Cholesterol	54
Stroke	1
Ischemic Heart Disease	23
Depression	19
Chronic Kidney Disease	19
Asthma	3
Osteoporosis	5
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	26
Atrial Fibrillation	8
Cancer	7
Dementia	4

Education & Training

Dr. Terence O. Lillis, MD graduated from West Virginia University School of Medicine in 2004. He completed residency at Altoona Regional Health System. He is certified by the American Board of Family Medicine and has a state license in South Carolina.

Medical School: West Virginia University School of Medicine (2004)

Residency: Altoona Regional Health System (2007)

Board Certification: American Board of Family Medicine

Licensed In: South Carolina

Affiliations & Hospitals

Dr. Terence O. Lillis, MD is associated with these hospitals and organizations:

Bon Secours

Bon Secours - St. Francis Hospital

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. Terence O. Lillis, MD appears to accept the following insurance providers: CorVel, WellCare, Medicare Advantage, MultiPlan, United Healthcare, Medicaid, Humana, Coventry, Cigna, Anthem, WellPoint, Molina Healthcare, Payer Provider, Sedgwick/Careworks KY OH SC VA, America's 1st Choice SC, Absolute Total Care SC, Medicare SC, Aetna Health Insurance Company SC, CIN-Greenville, Medcost SC, Select Health Network SC, Blue Cross Blue Shield SC and Employer Health Network SC.

Insurance Accepted by Provider includes:

According to our sources, Dr. Terence O. Lillis, MD accepts the following insurance providers:

CorVel

WellCare

Medicare Advantage

MultiPlan

United Healthcare

Medicaid

Humana

Coventry

Cigna

Anthem

WellPoint

Molina Healthcare

Payer Provider

Sedgwick/Careworks KY OH SC VA

America's 1st Choice SC

Absolute Total Care SC

Medicare SC

Aetna Health Insurance Company SC

CIN-Greenville

Medcost SC

Select Health Network SC

Blue Cross Blue Shield SC

Employer Health Network SC

Ratings & Reviews

Dr. Terence O. Lillis, MD has an exceptional overall rating with an average of 4.95 out of 5 stars based on 19 ratings. We collect ratings and reviews of Dr. Terence O. Lillis, MD from all over the web to help you find the right in Simpsonville, SC.

4.95

Overall Rating

(19 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-08-19

Patient verified via Press Ganey

The doctor was patient enough to explain concerns my son had to him directly and keep us both involved in the conversation.

Overall Rating: 5.0 2025-09-06

Patient verified via Press Ganey

As always, Dr Lillis was thorough and kind. He always makes me feel comfortable and listens carefully

Overall Rating: 5.0 2025-11-25

Patient verified via Press Ganey

Dr. Lillis was very attentive about my concerns and answered my questions thoroughly.

General Payments

These charts describe general payments received by Dr. Terence O. Lillis, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Janssen Pharmaceuticals, Inc	$2,688 XARELTO $1,335	INVOKANA $1,326	INVOKAMET $27
Pfizer Inc.	$1,998 ELIQUIS $649	LYRICA $563	EUCRISA $305	CHANTIX $185	ABRYSVO $124	Other $172
Novo Nordisk Inc	$1,538 Victoza $787	Tresiba $298	NovoLog $123	Levemir $100	Ozempic $92	Other $138
AstraZeneca Pharmaceuticals LP	$1,380 SYMBICORT $567	FARXIGA $350	BYDUREON PEN $118	CRESTOR $97	BYDUREON WEEKLY $95	Other $152
GlaxoSmithKline, LLC.	$1,057 BREO $341	ANORO $180	TANZEUM $111	BREO ELLIPTA $99	INCRUSE $89	Other $238
Other	$6,535 ELIQUIS $894	Repatha $383	VRAYLAR $348	ENTRESTO $340	JANUMET XR $330	Other $4,241

**Types of Payments**
Food and Beverage	$15,102
Education	$93

Biography

Dr. Terence Lillis' medical specialty is family medicine. He obtained his medical school training at West Virginia University School of Medicine and performed his residency at Altoona Regional Health System. His average rating from his patients is 5.0 stars (out of 5). Dr. Lillis most likely takes Anthem, Blue California, and Coventry, as well as other insurance carriers. Dr. Lillis is professionally affiliated with Bon Secours. Bon Secours reports that he is accepting new patients at his office in Simpsonville, SC.