In 2024, among providers in related specialties within Nevada, Dr. Calvin Darnell Lyons JR., MD performed more diagnostic rigid proctosigmoidoscopy, gastrointestinal procedures, and lower endoscopy procedures for Medicare patients than 95% of them and he also had a list price for endoscopy, gastrointestinal (GI) endoscopy, lower endoscopy, and minimally invasive procedures 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 Affordability:

gastrointestinal procedures

In 2024, Dr. Calvin Darnell Lyons JR., MD had a list price for gastrointestinal procedures that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Nevada. 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 Volume:

endoscopy

hemorrhoid banding

standard anoscopy

By Affordability:

In 2012, among providers in related specialties within Nevada, Dr. Calvin Darnell Lyons JR., MD performed more endoscopy, hemorrhoid banding, and standard anoscopy procedures for Medicare patients than 75% of them and he also had a list price for anoscopy, diagnostic anoscopy, diagnostic endoscopy, 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 Darnell 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 Darnell 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 Darnell 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 Darnell Lyons JR., MD in 2017

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 Darnell 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 Darnell 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 Darnell 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 Darnell Lyons JR., MD in 2018

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 Darnell 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 Darnell 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 Darnell 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 Darnell Lyons JR., MD in 2019

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 Darnell 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 Darnell 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 Darnell 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 Darnell Lyons JR., MD in 2020

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 Darnell 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 Darnell 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 Darnell 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 Darnell Lyons JR., MD in 2021

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 Darnell 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 Darnell 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 Darnell 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 Darnell Lyons JR., MD in 2022

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 Darnell 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 Darnell 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 Darnell 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 Darnell Lyons JR., MD in 2023

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

2024 Medicare Procedure Volume

The top procedures that Dr. Calvin Darnell Lyons JR., MD treated as a colon and rectal surgeon in Las Vegas, NV during 2024 were gastrointestinal procedures and minimally invasive procedures.

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

doctor visit	273
gastrointestinal procedures	177
minimally invasive procedures	131

2024 Medicare Patient Data

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

**Gender**
Male	81
Female	112

**Ethnicity**
Non-Hispanic White	121
Black	21
Hispanic	32
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	92
From 75 to 84	56
85 and over	17
Less than 65	28

Conditions of Medicare patients treated by Dr. Calvin Darnell Lyons JR., MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	26
Depression	22
Chronic Kidney Disease	23
Asthma	13
Osteoperosis	17
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	18
Diabetes	28
Dementia	9
Cancer	38

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2017 - 2024

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

The highest averages for the top procedures that Dr. Calvin Darnell 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	166
gastrointestinal procedures	102
hospital care	103
inpatient care	103
manometry	17
minimally invasive procedures	94
removal of lesion (e.g. growth)	11
urologic procedures	17

Average Medicare Patient Data From 2017 - 2024

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

**Gender**
Male	57
Female	63

**Ethnicity**
Black / African American	12
Asian / Pacific Islander	0
Non-Hispanic White	75
Hispanic	14
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	34
85 and over	8
Less than 65	14
65 to 74	58

Average of Total of Conditions of Medicare patients treated by Dr. Calvin Darnell Lyons JR., MD From 2017 - 2024

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

Hypertension	72
High Cholesterol	67
Stroke	2
Ischemic Heart Disease	39
Depression	21
Chronic Kidney Disease	37
Asthma	7
Osteoporosis	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	16
Diabetes	39
Atrial Fibrillation	10
Cancer	29
Dementia	8

Education & Training

He has a state license in Nevada.

Licensed In: Nevada

Ratings & Reviews

Dr. Calvin Darnell Lyons JR., MD does not have any reviews yet, be the first to leave a review of Dr. Calvin Darnell Lyons JR., MD here: Leave a Review

(No ratings)

Leave a Review

General Payments

These charts describe general payments received by Dr. Calvin Darnell 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 is a specialist in colon & rectal surgery. Dr. Lyons's areas of expertise include the following: colorectal surgery procedures and robotic surgery. He graduated from the University of Texas Southwestern Medical School. He is professionally affiliated with Dignity Health. According to Dignity Health, he is currently accepting new patients at his office in Las Vegas, NV.