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Dr. Daniel Zainfeld, MD

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Specializes in: Urology (Urinary Tract Disease)

University of Texas Medical School at Houston (2011)

Professional interests include: kidney problems, cystoscopy, gout, and more.

7909 Fredricksburg Road Suite 130
San Antonio, TX 78229

(210) 614-4544

Dr. Daniel Zainfeld, MD is an urologist in San Antonio, TX specializing in urology (urinary tract disease). He graduated from University of Texas Medical School at Houston in 2011 and has 13 years of experience. Dr. Daniel Zainfeld, MD is affiliated with Baptist Health System, Urology San Antonio, Baptist Hospital and UROLOGY SAN ANTONIO PA.

Office Locations

Address:

7909 Fredricksburg Road Suite 130
San Antonio, TX 78229

Some issues Dr. Daniel Zainfeld, MD can help you with:

Kidney Stones

Kidney stones are hard deposits that form in the kidneys, made up of minerals that are normally present in urine. They can vary in size, from as small as a grain of sand to as large as a nickel, occasionally even larger. Sometimes they lodge in the kidney, and sometimes they break free and make their way out through the urinary tract, which can be extremely painful.

Kidney stones can be smooth or jagged and are yellow to brown in color. They are mostly comprised of the minerals calcium, oxalate, and phosphorus. Examining the stones to see what they are made of can show what caused the stone to be formed in the first place. For example, a stone made of mostly calcium, which is the most common type, can happen any time the urine becomes too concentrated due to dehydration or a blockage in the kidney. A uric acid stone forms when acid levels in the urine get too high, usually due to excessive consumption of animal protein such as meat and fish. A struvite stone is a sign of certain infections, and a cystine stone can be due to a genetic disorder that raises the risk of kidney stones.

The most common symptom of kidney stones is pain, either in the back or lower abdomen, or severe pain when urinating. There may also be blood in the urine. Treatment for kidney stones depends on how large the stone is. Very small stones can pass out of the body on their own, and they do not require treatment other than drinking adequate water and taking pain killers. Larger stones need to be broken apart and removed. The main treatment options are:

Shock wave lithotripsy, which uses sound wave vibrations to break apart the stone
Percutaneous nephrolithotomy, or the use of a very tiny tool (like a wire inserted through the back) to break apart and remove the stone
Ureteroscopy, a thin tube inserted through the urethra and bladder to the stone, where tiny tools can grasp the stone and remove

People who have had one kidney stone are at risk of developing another. To reduce this risk, patients are given instructions specific to the type of stone they developed. Generally the instructions will include drinking more water to dilute the urine, but it may also involve lowering sodium intake or eating less meat.

blood draw	23
doctor visit	125
lab tests	117
minimally invasive procedures	14
potassium test	11
urologic procedures	56

**Gender**
Male	100
Female	44

**Ethnicity**
Non-Hispanic White	86
Black	0
Hispanic	42
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	66
From 75 to 84	38
85 and over	22
Less than 65	18

Hypertension	75
High Cholesterol	69
Stroke	9
Ischemic Heart Disease	42
Depression	35
Chronic Kidney Disease	53
Asthma	10
Osteoperosis	10
Atrial Fibrilation	19
Heart Failure	24
Chronic Obstructive Pulmonary Disease	14
Diabetes	40
Dementia	22
Cancer	19

abdominal imaging	58
ablation	11
blood draw	114
chronic care	70
cryotherapy	11
CT scan	54
cytology	21
diagnostic procedures	12
doctor visit	571
hospital care	32
inpatient care	32
lab tests	631
laser treatment	11
minimally invasive procedures	90
minor procedures	12
pelvic imaging	39
potassium test	18
stent placement (stenting)	20
thoracic (chest) imaging	15
ultrasound (sonogram)	19
urologic procedures	232

**Gender**
Male	254
Female	131

**Ethnicity**
Non-Hispanic White	230
Black	0
Hispanic	124
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	181
From 75 to 84	124
85 and over	49
Less than 65	31

Hypertension	75
High Cholesterol	73
Stroke	9
Ischemic Heart Disease	50
Depression	24
Chronic Kidney Disease	59
Asthma	6
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	25
Chronic Obstructive Pulmonary Disease	15
Diabetes	46
Dementia	21
Cancer	19

abdominal imaging	97
ablation	21
biological response modifier (BRM) therapy	40
blood draw	134
catheterization	26
chemotherapy	40
chronic care	68
cryotherapy	21
CT scan	78
cytology	38
doctor visit	526
hospital care	40
inpatient care	40
lab tests	631
laser treatment	21
minimally invasive procedures	105
pelvic imaging	57
potassium test	22
stent placement (stenting)	19
thoracic (chest) imaging	21
ultrasound (sonogram)	40
urologic procedures	272

**Gender**
Male	296
Female	118

**Ethnicity**
Non-Hispanic White	248
Black	25
Hispanic	128
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	190
From 75 to 84	142
85 and over	46
Less than 65	36

Hypertension	75
High Cholesterol	72
Stroke	6
Ischemic Heart Disease	49
Depression	27
Chronic Kidney Disease	59
Asthma	7
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	24
Chronic Obstructive Pulmonary Disease	13
Diabetes	44
Dementia	17
Cancer	29

abdominal imaging	219
ablation	61
biological response modifier (BRM) therapy	174
blood draw	433
catheterization	29
chemotherapy	174
chronic care	487
cryotherapy	61
CT scan	252
cytology	151
doctor visit	1347
hospital care	165
inpatient care	165
lab tests	1902
laser treatment	61
marker placement for prostate radiation therapy	25
minimally invasive procedures	379
pelvic imaging	168
potassium test	10
stent placement (stenting)	43
thoracic (chest) imaging	84
ultrasound (sonogram)	51
urologic procedures	834

Average Medicare Procedure Volume From 2018 - 2021

Volume of procedures performed by Dr. Daniel Zainfeld, MD for Medicare patients.

The highest averages for the top procedures that Dr. Daniel Zainfeld, MD treated as an urologist in San Antonio, TX were lab tests, urologic procedures, chronic care and blood draw.

abdominal imaging	125
ablation	31
biological response modifier (BRM) therapy	107
blood draw	176
catheterization	27
chemotherapy	107
chronic care	208
cryotherapy	31
CT scan	128
cytology	70
diagnostic procedures	12
doctor visit	643
hospital care	79
inpatient care	79
lab tests	822
laser treatment	31
minimally invasive procedures	148
minor procedures	12
pelvic imaging	88
potassium test	15
stent placement (stenting)	27
thoracic (chest) imaging	40
ultrasound (sonogram)	36
urologic procedures	350

Average Medicare Patient Data From 2018 - 2021

Information about Medicare patients treated by Dr. Daniel Zainfeld, MD.

**Gender**
Male	65
Female	29

**Ethnicity**
Black / African American	2
Asian / Pacific Islander	0
Non-Hispanic White	56
Native American / Alaskan Native	0
Hispanic	29
Other	0

**Age**
75 to 84	30
85 and over	11
Less than 65	8
65 to 74	43

Average of Total of Conditions of Medicare patients treated by Dr. Daniel Zainfeld, MD From 2018 - 2021

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

Hypertension	22
High Cholesterol	21
Stroke	2
Ischemic Heart Disease	14
Depression	8
Chronic Kidney Disease	17
Asthma	2
Osteoporosis	2
Heart Failure	7
Chronic Obstructive Pulmonary Disease	4
Diabetes	13
Atrial Fibrillation	4
Cancer	6
Dementia	6

Education & Training

Dr. Daniel Zainfeld, MD graduated from University of Texas Medical School at Houston in 2011. He completed residency at University of Kansas Affiliated Hospitals. He has a state license in Kansas.

Medical School: University of Texas Medical School at Houston (2011)

Residency: University of Kansas Affiliated Hospitals

Licensed In: Kansas

Affiliations & Hospitals

Dr. Daniel Zainfeld, MD is associated with these hospitals and organizations:

Baptist Health System

Urology San Antonio

Baptist Hospital

UROLOGY SAN ANTONIO PA

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General Payments

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

**Payments by Company**
UROGEN PHARMA, INC.	$2,495 JELMYTO $213	$2,282
Janssen Scientific Affairs, LLC	$1,989 $1,989
AstraZeneca Pharmaceuticals LP	$1,683 IMFINZI $78	$1,605
E.R. Squibb & Sons, L.L.C.	$840 $840
Boston Scientific Corporation	$724 ERECTILE DYSFUNCTION $184	BPH $167	KIDNEY STONE DISEASE $67	PROSTATE HEALTH $43	STRESS URINARY INCONTINENCE $7	Other $256
Other	$2,835 Da Vinci Surgical System $541	Erleada $375	GreenLight Laser Therapy $258	Urology $228	PROVENGE $190	Other $1,242

**Types of Payments**
Consulting Fee	$4,370
Food and Beverage	$3,444
Honoraria	$2,040
Travel and Lodging	$520
Education	$192

Research Payments

Dr. Daniel Zainfeld, MD has received 69 research payments totaling $2,652,800.

Biography

Dr. Daniel Zainfeld is a specialist in urology (urinary tract disease) in San Antonio, TX. In his practice, he is particularly interested in kidney stones, cystoscopy, and gout. Dr. Zainfeld attended medical school at the University of Texas Medical School at Houston. He is professionally affiliated with Urology San Antonio, CHRISTUS Health, and Baptist Health System.