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Home > NV Providers > Colorectal Surgeons

Dr. Calvin D. Lyons JR., MD

Accepting New Patients

(Dr. Calvin Darnell Lyons Jr., M.D.)

(No ratings)

Specializes in: Colon & Rectal Surgery

University of Texas Southwestern Medical School

Professional interests include: robotic surgery

2121 E Flamingo Road Suite 200
Las Vegas, NV 89119

(702) 685-5668

Dr. Calvin D. Lyons JR., MD is a colon and rectal surgeon in Las Vegas, NV specializing in colon & rectal surgery. He graduated from University of Texas Southwestern Medical School. Dr. Calvin D. Lyons JR., MD is affiliated with Dignity Health, ROGER W HSIUNG MD PLLC and St Rose Dominican - San Martin St Rose Dominican - Siena Campus.

Office Locations

St Rose Dominican - San Martin St Rose Dominican - Siena Campus

1330 E. Pebble Road Suite 115
Las Vegas, NV 89123

(702) 685-5668

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2121 E Flamingo Road Suite 200
Las Vegas, NV 89119

(702) 685-5668

(702) 685-0599

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St Rose Dominican - San Martin St Rose Dominican - Siena Campus

2310 Corporate Circle Suite 200
Henderson, AZ 89074

(702) 735-8000

(702) 563-2937

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2310 Corporate Circle Suite 200
Henderson, NV 89074

(702) 735-8000

(702) 563-2937

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Some issues Dr. Calvin D. Lyons JR., MD can help you with:

Robotic Surgery

Robotic surgery is a type of minimally invasive surgery, using a tiny opening to get inside the body instead of making a large cut. It uses small tools attached to a thin robotic arm, which is controlled by the surgeon. Robotic surgery may be referred to by the specific kind of robot that is used. The most advanced robot currently in use is called the da Vinci, and surgery using it is sometimes called da Vinci surgery.

There are many benefits to robotic surgery, both for the patient and the surgeon. Robotic surgery allows for more precise movements and increased control during very delicate surgical procedures. This makes performing surgery accurately much easier for surgeons and reduces fatigue. The smaller 'hand' of the robot can enter the body via a much smaller opening, which reduces the risk of infection and scarring and leads to a faster recovery. The robotic hands also contain tiny moveable cameras among their tools, giving surgeons a much closer view of the procedure than would be possible with traditional surgery.

Noteworthy Medicare Patient Procedures Performed by Dr. Calvin D. Lyons JR., MD in 2023

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

Top 5%

By Volume:

diagnostic rigid proctosigmoidoscopy

By Affordability:

diagnostic proctosigmoidoscopy

diagnostic rigid proctosigmoidoscopy

proctosigmoidoscopy

rigid proctosigmoidoscopy

In 2023, among providers in related specialties within Nevada, Dr. Calvin D. Lyons JR., MD performed more diagnostic rigid proctosigmoidoscopy procedures for Medicare patients than 95% of them and he also had a list price for diagnostic proctosigmoidoscopy, diagnostic rigid proctosigmoidoscopy, proctosigmoidoscopy, and rigid proctosigmoidoscopy that was lower than the list prices billed to Medicare by 95% of them. 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 Volume:

lower endoscopy

In 2023, Dr. Calvin D. Lyons JR., MD performed more lower endoscopy procedures for Medicare patients than 90% of providers in related specialties within Nevada.

Top 25%

By Volume:

endoscopy

standard anoscopy

By Affordability:

anoscopy

diagnostic anoscopy

standard anoscopy

In 2013, among providers in related specialties within Nevada, Dr. Calvin D. Lyons JR., MD performed more endoscopy, and standard anoscopy procedures for Medicare patients than 75% of them and he also had a list price for anoscopy, diagnostic anoscopy, and standard anoscopy that was lower than the list prices billed to Medicare by 75% of them. 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

2017 Medicare Procedure Volume

The top procedures that Dr. Calvin D. Lyons JR., MD treated as a colon and rectal surgeon in Las Vegas, NV during 2017 were anorectal procedures, diagnostic procedures, manometry and gastrointestinal procedures.

Volume of procedures performed by Dr. Calvin D. Lyons JR., MD for Medicare patients.

anorectal procedures	34
diagnostic procedures	17
gastrointestinal procedures	17
manometry	17
urologic procedures	17

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Calvin D. Lyons JR., MD.

**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. Calvin D. Lyons JR., MD in 2017

The most common conditions of Medicare patients that Dr. Calvin D. Lyons JR., MD treated during 2017 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	43
Depression	0
Chronic Kidney Disease	40
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

2018 Medicare Procedure Volume

The top procedures that Dr. Calvin D. Lyons JR., MD treated as a colon and rectal surgeon in Las Vegas, NV during 2018 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Calvin D. Lyons JR., MD for Medicare patients.

doctor visit	42
gastrointestinal procedures	19
minimally invasive procedures	19

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Calvin D. Lyons JR., MD.

**Gender**
Male	26
Female	17

**Ethnicity**
Non-Hispanic White	24
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Calvin D. Lyons JR., MD in 2018

The most common conditions of Medicare patients that Dr. Calvin D. Lyons JR., MD treated during 2018 were high cholesterol, hypertension, chronic kidney disease and ischemic heart disease.

Hypertension	70
High Cholesterol	70
Stroke	0
Ischemic Heart Disease	51
Depression	26
Chronic Kidney Disease	56
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	26
Diabetes	47
Dementia	0
Cancer	37

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Calvin D. Lyons JR., MD treated as a colon and rectal surgeon in Las Vegas, NV during 2019 were hospital care, inpatient care, gastrointestinal procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Calvin D. Lyons JR., MD for Medicare patients.

doctor visit	139
gastrointestinal procedures	100
hospital care	146
inpatient care	146
minimally invasive procedures	68

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Calvin D. Lyons JR., MD.

**Gender**
Male	64
Female	66

**Ethnicity**
Non-Hispanic White	68
Black	0
Hispanic	34
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	52
From 75 to 84	44
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Calvin D. Lyons JR., MD in 2019

The most common conditions of Medicare patients that Dr. Calvin D. Lyons JR., MD treated during 2019 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	75
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	45
Depression	25
Chronic Kidney Disease	39
Asthma	12
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	25
Chronic Obstructive Pulmonary Disease	18
Diabetes	46
Dementia	12
Cancer	26

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Calvin D. Lyons JR., MD treated as a colon and rectal surgeon in Las Vegas, NV during 2020 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Calvin D. Lyons JR., MD for Medicare patients.

doctor visit	111
gastrointestinal procedures	70
hospital care	60
inpatient care	60
minimally invasive procedures	70

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Calvin D. Lyons JR., MD.

**Gender**
Male	55
Female	61

**Ethnicity**
Non-Hispanic White	68
Black	26
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	43
From 75 to 84	35
85 and over	11
Less than 65	27

Conditions of Medicare patients treated by Dr. Calvin D. Lyons JR., MD in 2020

The most common conditions of Medicare patients that Dr. Calvin D. Lyons JR., MD treated during 2020 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	72
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	46
Depression	26
Chronic Kidney Disease	47
Asthma	14
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	22
Chronic Obstructive Pulmonary Disease	19
Diabetes	46
Dementia	17
Cancer	31

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Calvin D. Lyons JR., MD treated as a colon and rectal surgeon in Las Vegas, NV during 2021 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Calvin D. Lyons JR., MD for Medicare patients.

diagnostic procedures	11
doctor visit	177
gastrointestinal procedures	160
minimally invasive procedures	129
removal of lesion (e.g. growth)	11

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Calvin D. Lyons JR., MD.

**Gender**
Male	72
Female	84

**Ethnicity**
Non-Hispanic White	103
Black	22
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	68
From 75 to 84	49
85 and over	11
Less than 65	28

Conditions of Medicare patients treated by Dr. Calvin D. Lyons JR., MD in 2021

The most common conditions of Medicare patients that Dr. Calvin D. Lyons JR., MD treated during 2021 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	66
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	40
Depression	26
Chronic Kidney Disease	42
Asthma	0
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	35
Dementia	19
Cancer	25

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Calvin D. Lyons JR., MD treated as a colon and rectal surgeon in Las Vegas, NV during 2022 were gastrointestinal procedures, minimally invasive procedures and abdominal surgery.

Volume of procedures performed by Dr. Calvin D. Lyons JR., MD for Medicare patients.

abdominal surgery	11
doctor visit	177
gastrointestinal procedures	141
minimally invasive procedures	106

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Calvin D. Lyons JR., MD.

**Gender**
Male	70
Female	74

**Ethnicity**
Non-Hispanic White	101
Black	12
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	37
85 and over	11
Less than 65	13

Conditions of Medicare patients treated by Dr. Calvin D. Lyons JR., MD in 2022

The most common conditions of Medicare patients that Dr. Calvin D. Lyons JR., MD treated during 2022 were high cholesterol, hypertension, cancer and diabetes.

Hypertension	74
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	28
Depression	21
Chronic Kidney Disease	25
Asthma	9
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	13
Chronic Obstructive Pulmonary Disease	17
Diabetes	35
Dementia	0
Cancer	35

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Calvin D. Lyons JR., MD treated as a colon and rectal surgeon in Las Vegas, NV during 2023 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Calvin D. Lyons JR., MD for Medicare patients.

doctor visit	244
gastrointestinal procedures	138
minimally invasive procedures	138

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Calvin D. Lyons JR., MD.

**Gender**
Male	92
Female	93

**Ethnicity**
Non-Hispanic White	116
Black	18
Hispanic	30
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	87
From 75 to 84	55
85 and over	20
Less than 65	23

Conditions of Medicare patients treated by Dr. Calvin D. Lyons JR., MD in 2023

The most common conditions of Medicare patients that Dr. Calvin D. Lyons JR., MD treated during 2023 were high cholesterol, hypertension, cancer and diabetes.

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	34
Depression	23
Chronic Kidney Disease	24
Asthma	8
Osteoperosis	14
Atrial Fibrilation	17
Heart Failure	13
Chronic Obstructive Pulmonary Disease	19
Diabetes	41
Dementia	9
Cancer	44

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2017 - 2023

Volume of procedures performed by Dr. Calvin D. Lyons JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. Calvin D. Lyons JR., MD treated as a colon and rectal surgeon in Las Vegas, NV were hospital care, inpatient care, gastrointestinal procedures and minimally invasive procedures.

abdominal surgery	11
anorectal procedures	34
diagnostic procedures	14
doctor visit	148
gastrointestinal procedures	92
hospital care	103
inpatient care	103
manometry	17
minimally invasive procedures	88
removal of lesion (e.g. growth)	11
urologic procedures	17

Average Medicare Patient Data From 2017 - 2023

Information about Medicare patients treated by Dr. Calvin D. Lyons JR., MD.

**Gender**
Male	54
Female	56

**Ethnicity**
Black / African American	11
Asian / Pacific Islander	0
Non-Hispanic White	68
Native American / Alaskan Native	0
Hispanic	11
Other	0

**Age**
75 to 84	31
85 and over	7
Less than 65	13
65 to 74	53

Average of Total of Conditions of Medicare patients treated by Dr. Calvin D. Lyons JR., MD From 2017 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Calvin D. Lyons JR., MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	72
High Cholesterol	66
Stroke	1
Ischemic Heart Disease	41
Depression	21
Chronic Kidney Disease	39
Asthma	6
Osteoporosis	8
Heart Failure	12
Chronic Obstructive Pulmonary Disease	16
Diabetes	40
Atrial Fibrillation	9
Cancer	28
Dementia	8

Education & Training

Dr. Calvin D. Lyons JR., MD graduated from University of Texas Southwestern Medical School. He has a state license in Nevada.

Medical School: University of Texas Southwestern Medical School

Licensed In: Nevada

Affiliations & Hospitals

Dr. Calvin D. Lyons JR., MD is associated with these hospitals and organizations:

Dignity Health

ROGER W HSIUNG MD PLLC

St Rose Dominican - San Martin St Rose Dominican - Siena Campus

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Calvin D. Lyons JR., MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Intuitive Surgical, Inc.	$6,671 Da Vinci Surgical System $5,671	DAVINCI XI $1,000
Medtronic, Inc.	$665 Signia $15	$650
Covidien LP	$325 $325
Merck Sharp & Dohme Corporation	$318 ENTEREG $169	BRIDION $149
Takeda Pharmaceuticals U.S.A., Inc.	$305 GATTEX $305
Other	$1,864 BEXSERO $201	Restrata Wound Matrix $166	FOUNDATIONONE LIQUID CDX $148	Oasis $130	Skyrizi $125	Other $1,094

**Types of Payments**
Education	$3,500
Food and Beverage	$2,777
Travel and Lodging	$2,337
Consulting Fee	$975
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$275
Other	$284

Biography

Dr. Calvin Lyons sees patients in Las Vegas, NV and Henderson, NV. His medical specialty is colon & rectal surgery. His clinical interests include colorectal surgery procedures. Dr. Lyons graduated from the University of Texas Southwestern Medical School.