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Dr. John C. Kefer, MD PHD

(John Christopher Kefer, MD PHD)

(No ratings)

Specializes in: Urology (Urinary Tract Disease)

Loyola University Chicago, Stritch School of Medicine (2003)

3 Superior Drive Suite 301
Superior, CO 80027

(720) 544-6140

Dr. John C. Kefer, MD PHD is an urologist in Superior, CO specializing in urology (urinary tract disease). He graduated from Loyola University Chicago, Stritch School of Medicine in 2003 and has 23 years of experience. Dr. John C. Kefer, MD PHD is affiliated with Boulder Community Health, CommonSpirit Health - Mountain Region and ADVANCED UROLOGY PLLC.

Office Locations

CommonSpirit Health - Mountain Region

3 Superior Drive Suite 301
Superior, CO 80027

(720) 544-6140

(303) 625-9867

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CommonSpirit Health - Mountain Region

4743 Arapahoe Avenue Suite 104
Boulder, CO 80303

(303) 444-9000

(303) 444-9073

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CommonSpirit Health - Mountain Region

500 W 144th Avenue Building 2 Suite 220
Westminster, CO 80023

(720) 227-0977

(303) 607-3473

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Noteworthy Medicare Patient Procedures Performed by Dr. John C. Kefer, MD PHD in 2023

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

Top 5%

By Volume:

anal sphincter electromyography

diagnostic procedures

electromyography

minimally invasive procedures

urologic procedures

By Affordability:

lab tests

urinalysis

urine tests

In 2023, among providers in related specialties within Colorado, Dr. John C. Kefer, MD PHD performed more anal sphincter electromyography, diagnostic procedures, electromyography (EMG), minimally invasive procedures, and urologic procedures procedures for Medicare patients than 95% of them and he also had a list price for lab tests, urinalysis, and urine tests 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:

core needle prostate biopsy

cystoscopy

diagnostic cystoscopy

prostate punch biopsy

In 2023, Dr. John C. Kefer, MD PHD performed more core needle prostate biopsy, cystoscopy, diagnostic cystoscopy, and prostate punch biopsy procedures for Medicare patients than 90% of providers in related specialties within Colorado.

Top 25%

By Affordability:

diagnostic cystoscopy

In 2012, Dr. John C. Kefer, MD PHD had a list price for diagnostic cystoscopy that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Colorado. 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. John C. Kefer, MD PHD treated as an urologist in Superior, CO during 2012 were urologic procedures, lab tests, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John C. Kefer, MD PHD for Medicare patients.

anorectal procedures	49
catheterization	21
diagnostic procedures	69
doctor visit	1033
foreign body removal	22
hormone therapy	39
hospital care	24
inpatient care	24
lab tests	927
laser treatment	15
lithotripsy (stone fragmentation)	15
minimally invasive procedures	246
minor procedures	20
potassium test	43
stent placement (stenting)	42
urologic procedures	1116

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John C. Kefer, MD PHD treated as an urologist in Superior, CO during 2013 were urologic procedures, lab tests, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John C. Kefer, MD PHD for Medicare patients.

anorectal procedures	46
catheterization	41
diagnostic procedures	63
doctor visit	1067
foreign body removal	16
hormone therapy	27
hospital care	39
inpatient care	39
lab tests	888
minimally invasive procedures	212
minor procedures	17
potassium test	36
stent placement (stenting)	34
urologic procedures	1152

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John C. Kefer, MD PHD.

**Gender**
Male	273
Female	111

**Ethnicity**
Non-Hispanic White	351
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	176
From 75 to 84	119
85 and over	64
Less than 65	25

Conditions of Medicare patients treated by Dr. John C. Kefer, MD PHD in 2013

Hypertension	56
High Cholesterol	49
Stroke	5
Ischemic Heart Disease	39
Depression	21
Chronic Kidney Disease	31
Asthma	5
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	21
Dementia	10
Cancer	28

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John C. Kefer, MD PHD treated as an urologist in Superior, CO during 2014 were urologic procedures, lab tests, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John C. Kefer, MD PHD for Medicare patients.

anorectal procedures	39
catheterization	22
diagnostic procedures	54
doctor visit	969
foreign body removal	23
hospital care	40
inpatient care	40
lab tests	633
minimally invasive procedures	198
minor procedures	15
potassium test	51
stent placement (stenting)	52
urologic procedures	866

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John C. Kefer, MD PHD.

**Gender**
Male	230
Female	89

**Ethnicity**
Non-Hispanic White	296
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	166
From 75 to 84	92
85 and over	45
Less than 65	16

Conditions of Medicare patients treated by Dr. John C. Kefer, MD PHD in 2014

Hypertension	58
High Cholesterol	49
Stroke	5
Ischemic Heart Disease	37
Depression	21
Chronic Kidney Disease	41
Asthma	5
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	20
Dementia	16
Cancer	26

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John C. Kefer, MD PHD treated as an urologist in Superior, CO during 2015 were urologic procedures, lab tests, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John C. Kefer, MD PHD for Medicare patients.

ablation	16
anorectal procedures	51
diagnostic procedures	63
doctor visit	961
foreign body removal	14
hospital care	61
inpatient care	61
lab tests	789
laser treatment	16
minimally invasive procedures	180
minor procedures	12
potassium test	27
stent placement (stenting)	25
urologic procedures	791

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John C. Kefer, MD PHD.

**Gender**
Male	534
Female	190

**Ethnicity**
Non-Hispanic White	656
Black	0
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	352
From 75 to 84	224
85 and over	84
Less than 65	64

Conditions of Medicare patients treated by Dr. John C. Kefer, MD PHD in 2015

Hypertension	62
High Cholesterol	54
Stroke	6
Ischemic Heart Disease	37
Depression	21
Chronic Kidney Disease	42
Asthma	10
Osteoperosis	5
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	26
Dementia	14
Cancer	26

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John C. Kefer, MD PHD treated as an urologist in Superior, CO during 2016 were lab tests, urologic procedures, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John C. Kefer, MD PHD for Medicare patients.

ablation	23
anorectal procedures	68
diagnostic procedures	89
doctor visit	1210
foreign body removal	17
hospital care	58
inpatient care	58
lab tests	900
laser treatment	23
minimally invasive procedures	236
minor procedures	21
potassium test	33
urologic procedures	900

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John C. Kefer, MD PHD.

**Gender**
Male	306
Female	121

**Ethnicity**
Non-Hispanic White	385
Black	0
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	236
From 75 to 84	123
85 and over	42
Less than 65	26

Conditions of Medicare patients treated by Dr. John C. Kefer, MD PHD in 2016

Hypertension	59
High Cholesterol	47
Stroke	3
Ischemic Heart Disease	35
Depression	18
Chronic Kidney Disease	41
Asthma	12
Osteoperosis	5
Atrial Fibrilation	16
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	25
Dementia	14
Cancer	20

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John C. Kefer, MD PHD treated as an urologist in Superior, CO during 2017 were lab tests, urologic procedures, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John C. Kefer, MD PHD for Medicare patients.

ablation	19
anorectal procedures	66
diagnostic procedures	82
doctor visit	1257
foreign body removal	14
hospital care	54
inpatient care	54
lab tests	863
laser treatment	30
lithotripsy (stone fragmentation)	11
minimally invasive procedures	235
minor procedures	16
potassium test	22
stent placement (stenting)	32
urologic procedures	857

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John C. Kefer, MD PHD.

**Gender**
Male	346
Female	130

**Ethnicity**
Non-Hispanic White	423
Black	0
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	240
From 75 to 84	159
85 and over	39
Less than 65	38

Conditions of Medicare patients treated by Dr. John C. Kefer, MD PHD in 2017

Hypertension	59
High Cholesterol	45
Stroke	4
Ischemic Heart Disease	36
Depression	18
Chronic Kidney Disease	43
Asthma	7
Osteoperosis	5
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	12
Diabetes	27
Dementia	14
Cancer	19

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John C. Kefer, MD PHD treated as an urologist in Superior, CO during 2018 were lab tests, urologic procedures, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John C. Kefer, MD PHD for Medicare patients.

ablation	15
anorectal procedures	69
diagnostic procedures	101
doctor visit	1300
foreign body removal	14
hospital care	37
inpatient care	37
lab tests	983
laser treatment	15
minimally invasive procedures	244
minor procedures	32
potassium test	24
urologic procedures	867

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John C. Kefer, MD PHD.

**Gender**
Male	348
Female	124

**Ethnicity**
Non-Hispanic White	410
Black	0
Hispanic	32
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	246
From 75 to 84	155
85 and over	42
Less than 65	29

Conditions of Medicare patients treated by Dr. John C. Kefer, MD PHD in 2018

Hypertension	60
High Cholesterol	48
Stroke	5
Ischemic Heart Disease	35
Depression	17
Chronic Kidney Disease	40
Asthma	5
Osteoperosis	6
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	24
Dementia	11
Cancer	22

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John C. Kefer, MD PHD treated as an urologist in Superior, CO during 2019 were urologic procedures, lab tests, minimally invasive procedures and potassium test.

Volume of procedures performed by Dr. John C. Kefer, MD PHD for Medicare patients.

anorectal procedures	63
cancer surgery	13
catheterization	16
diagnostic procedures	92
dissection	13
doctor visit	1241
excision	13
foreign body removal	12
hospital care	22
inpatient care	22
lab tests	914
laser treatment	11
lithotripsy (stone fragmentation)	11
lymph node procedures	13
minimally invasive procedures	301
minor procedures	29
pelvic surgery	13
potassium test	120
stent placement (stenting)	11
urologic procedures	1045

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John C. Kefer, MD PHD.

**Gender**
Male	381
Female	119

**Ethnicity**
Non-Hispanic White	433
Black	0
Hispanic	33
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	281
From 75 to 84	146
85 and over	40
Less than 65	33

Conditions of Medicare patients treated by Dr. John C. Kefer, MD PHD in 2019

Hypertension	58
High Cholesterol	52
Stroke	5
Ischemic Heart Disease	34
Depression	20
Chronic Kidney Disease	36
Asthma	8
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	23
Dementia	12
Cancer	21

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John C. Kefer, MD PHD treated as an urologist in Superior, CO during 2020 were urologic procedures, lab tests, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John C. Kefer, MD PHD for Medicare patients.

abdominal imaging	20
anorectal procedures	50
cancer surgery	18
diagnostic procedures	95
dissection	16
doctor visit	908
excision	16
foreign body removal	15
hospital care	43
inpatient care	43
lab tests	626
lymph node procedures	16
minimally invasive procedures	276
minor procedures	45
pelvic surgery	16
potassium test	62
ultrasound (sonogram)	20
urologic procedures	730

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John C. Kefer, MD PHD.

**Gender**
Male	364
Female	99

**Ethnicity**
Non-Hispanic White	393
Black	0
Hispanic	33
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	260
From 75 to 84	132
85 and over	39
Less than 65	32

Conditions of Medicare patients treated by Dr. John C. Kefer, MD PHD in 2020

Hypertension	54
High Cholesterol	50
Stroke	4
Ischemic Heart Disease	31
Depression	16
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	4
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	8
Diabetes	21
Dementia	9
Cancer	25

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John C. Kefer, MD PHD treated as an urologist in Superior, CO during 2021 were urologic procedures, lab tests, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John C. Kefer, MD PHD for Medicare patients.

abdominal imaging	19
anorectal procedures	44
cancer surgery	14
diagnostic procedures	110
dissection	14
doctor visit	719
excision	14
hormone therapy	54
lab tests	443
lymph node procedures	14
minimally invasive procedures	267
minor procedures	66
pelvic surgery	14
potassium test	18
ultrasound (sonogram)	19
urologic procedures	731

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John C. Kefer, MD PHD.

**Gender**
Male	363
Female	86

**Ethnicity**
Non-Hispanic White	379
Black	0
Hispanic	28
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	262
From 75 to 84	130
85 and over	35
Less than 65	22

Conditions of Medicare patients treated by Dr. John C. Kefer, MD PHD in 2021

Hypertension	58
High Cholesterol	53
Stroke	4
Ischemic Heart Disease	29
Depression	17
Chronic Kidney Disease	33
Asthma	8
Osteoperosis	5
Atrial Fibrilation	12
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	21
Dementia	8
Cancer	28

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John C. Kefer, MD PHD treated as an urologist in Superior, CO during 2022 were urologic procedures, lab tests, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John C. Kefer, MD PHD for Medicare patients.

abdominal imaging	17
anorectal procedures	63
diagnostic procedures	111
doctor visit	718
hormone therapy	55
lab tests	365
minimally invasive procedures	218
minor procedures	48
ultrasound (sonogram)	17
urologic procedures	661

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John C. Kefer, MD PHD.

**Gender**
Male	327
Female	58

**Ethnicity**
Non-Hispanic White	334
Black	0
Hispanic	0
Asian	0
Other	30
Native American	0

**Age**
From 65 to 74	228
From 75 to 84	117
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John C. Kefer, MD PHD in 2022

Hypertension	63
High Cholesterol	70
Stroke	6
Ischemic Heart Disease	27
Depression	17
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	19
Dementia	6
Cancer	37

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John C. Kefer, MD PHD for Medicare patients.

The highest averages for the top procedures that Dr. John C. Kefer, MD PHD treated as an urologist in Superior, CO were urologic procedures, lab tests, minimally invasive procedures and diagnostic procedures.

abdominal imaging	18
ablation	18
anorectal procedures	55
cancer surgery	15
catheterization	25
diagnostic procedures	84
dissection	14
doctor visit	1034
excision	14
foreign body removal	16
hormone therapy	43
hospital care	42
inpatient care	42
lab tests	757
laser treatment	18
lithotripsy (stone fragmentation)	12
lymph node procedures	14
minimally invasive procedures	237
minor procedures	29
pelvic surgery	14
potassium test	43
stent placement (stenting)	32
ultrasound (sonogram)	18
urologic procedures	883

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John C. Kefer, MD PHD.

**Gender**
Male	315
Female	102

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	369
Hispanic	19
Native American / Alaskan Native	0
Other	9

**Age**
75 to 84	127
85 and over	39
Less than 65	25
65 to 74	222

Average of Total of Conditions of Medicare patients treated by Dr. John C. Kefer, MD PHD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. John C. Kefer, MD PHD treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	53
High Cholesterol	47
Stroke	4
Ischemic Heart Disease	30
Depression	16
Chronic Kidney Disease	33
Asthma	7
Osteoporosis	5
Heart Failure	13
Chronic Obstructive Pulmonary Disease	10
Diabetes	20
Atrial Fibrillation	11
Cancer	22
Dementia	10

Education & Training

Dr. John C. Kefer, MD PHD graduated from Loyola University Chicago, Stritch School of Medicine in 2003. He completed residency at Cleveland Clinic. He is certified by the American Board of Urology (ABU) Urology and has a state license in Colorado.

Medical School: Loyola University Chicago, Stritch School of Medicine (2003)

Residency: Cleveland Clinic

Board Certification: American Board of Urology (ABU) Urology

Licensed In: Colorado

Affiliations & Hospitals

Dr. John C. Kefer, MD PHD is associated with these hospitals and organizations:

Boulder Community Health

CommonSpirit Health - Mountain Region

ADVANCED UROLOGY PLLC

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. John C. Kefer, MD PHD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Teleflex LLC	$31,857 Urolift $31,689	Urolift System $168
Medtronic, Inc.	$11,087 Valleylab FT10 $10,083	LigaSure $1,000	INTERSTIM $4
AngioDynamics, Inc.	$2,961 Nanoknife $2,961
NeoTract Inc.	$2,770 Urolift $2,770
Janssen Biotech, Inc.	$604 Erleada $578	ZYTIGA $26
Other	$3,612 ORGOVYX $492	BOTOX $328	XTANDI $150	General - BPH $143	Vesicare $127	Other $2,372

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$29,838
Consulting Fee	$10,158
Food and Beverage	$8,032
Travel and Lodging	$4,723
Education	$140

Biography

Dr. John Kefer, who practices in Boulder, CO, Westminster, CO, and Superior, CO, is a medical specialist in urology (urinary tract disease). Dr. Kefer is professionally affiliated with CommonSpirit Health - Mountain Region and Boulder Community Health. After completing medical school at Loyola University Chicago, Stritch School of Medicine, he performed his residency at Cleveland Clinic.