Medicare Enrolled
Dr. Daniel Zainfeld, M.D.
Urology Physician · San Antonio, TX
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Consulting-driven
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Zainfeld from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Zainfeld
Dr. Daniel Zainfeld is an urology physician in San Antonio, TX, with 14 years of NPI registration. Based on federal Medicare data, Dr. Zainfeld performed 4,041 Medicare services across 2,159 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zainfeld received a total of $17,867 from 16 pharmaceutical and/or device companies across 59 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in urology physician. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Zainfeld is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 14 years in practice
▲ Top 30% volume in TX
$17,867 industry payments
Medicare Practice Summary
Medicare Utilization ↗4,041
Medicare services
Top 30% in TX for urology physician
2,159
Unique beneficiaries
$57
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~289 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Infectious disease DNA/RNA test A laboratory test that uses a specific technique to detect the genetic material of an organism. This method amplifies the target DNA or RNA to identify the presence of the organism. |
941 | $34 | $78 |
| Urinalysis with microscopic exam A urine test performed manually that includes examining the sample under a microscope to check for abnormalities. |
538 | $3 | $15 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
327 | $60 | $150 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
258 | $90 | $215 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
232 | $8 | $10 |
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
222 | $43 | $82 |
| Cystourethroscopy A diagnostic exam of the bladder and urethra using an endoscope to visually inspect the urinary tract. |
135 | $175 | $490 |
| Bladder ultrasound after voiding An ultrasound scan performed after urination to measure the amount of urine remaining in the bladder. |
131 | $7 | $95 |
| PSA test (prostate cancer screening) | 118 | $18 | $110 |
| Cell examination with selective cellular enhancement A laboratory test that examines cells from a specimen using a technique to selectively enhance specific cellular features for detailed analysis. |
109 | $26 | $210 |
| Yeast/candida DNA test A laboratory test that uses an amplified probe technique to detect the presence of Candida species, a type of yeast, in a patient sample. |
78 | $34 | $78 |
| Staphylococcus aureus DNA test A laboratory test that uses DNA amplification to detect the presence of Staphylococcus aureus bacteria in a sample. |
78 | $34 | $78 |
| Group B Strep DNA test A laboratory test that uses DNA amplification to detect the presence of Group B Streptococcus bacteria. |
78 | $34 | $78 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
75 | $8 | $45 |
| Total testosterone level test A blood test that measures the total amount of testosterone in your body. This hormone is important for various bodily functions in both men and women. |
59 | $25 | $150 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
58 | $105 | $313 |
| Hexaminolevulinate hydrochloride instillation, 100 mg Instillation of hexaminolevulinate hydrochloride, 100 mg. |
58 | $972 | $2,410 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
50 | $8 | $25 |
| Complete blood count (CBC), automated An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood. |
47 | $6 | $25 |
| Bladder instillation of anti-cancer drug A procedure where an anti-cancer medication is introduced directly into the bladder. This method delivers the treatment locally to the bladder tissue. |
44 | $65 | $270 |
| Blood creatinine level test A blood test that measures the amount of creatinine, a waste product from muscle wear and tear, to help assess kidney function. |
40 | $5 | $20 |
| Blood urea nitrogen test A blood test that measures the amount of urea nitrogen to assess kidney function. |
39 | $4 | $20 |
| CT scan of abdomen and pelvis with contrast A CT scan of the abdomen and pelvis using contrast dye before and after administration to visualize internal structures. |
32 | $255 | $700 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
30 | $76 | $345 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
26 | $76 | $210 |
| Hospital follow-up visit, low complexity Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service. |
26 | $38 | $90 |
| Prostate needle biopsy pathology exam Laboratory examination of prostate tissue samples obtained via needle biopsy. The pathologist inspects the tissue both visually and under a microscope to identify any abnormalities. |
25 | $128 | $751 |
| Prostate gland biopsy A procedure to remove small samples of tissue from the prostate gland for laboratory examination. |
24 | $87 | $350 |
| Transrectal ultrasound of the pelvis An ultrasound imaging procedure where a probe is inserted into the rectum to visualize pelvic structures. |
24 | $24 | $285 |
| Moderately high complexity pathology tissue examination A laboratory test where a pathologist examines tissue samples under a microscope to analyze cellular details. This specific level of complexity involves a moderate to high degree of technical skill and interpretation. |
23 | $158 | $575 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
20 | $77 | $600 |
| Tissue pathology examination, moderate complexity A laboratory test where a pathologist examines tissue samples under a microscope to analyze cellular details. This intermediate complexity procedure involves specialized techniques to identify abnormalities in the tissue. |
17 | $26 | $65 |
| Ureteral stent insertion via endoscope A flexible tube is inserted into the ureter using an endoscope to keep the passage open and allow urine to flow from the kidney to the bladder. |
16 | $105 | $1,350 |
| Bladder tumor removal via endoscope This procedure involves using an endoscope to destroy or remove a large growth from the bladder. |
14 | $294 | $2,350 |
| Bladder/urethra growth removal via endoscope, 0.5-2.0 cm This procedure uses an endoscope to destroy or remove a growth from the bladder or urethra that measures between 0.5 and 2.0 centimeters. |
13 | $175 | $1,150 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
13 | $100 | $275 |
| Initial hospital admission, low complexity Initial hospital inpatient or observation care for a new patient involving straightforward or low-level medical decision making, with at least 40 minutes total time on the date of the encounter. |
12 | $63 | $165 |
| Manual microscopic genetic analysis of tumor A laboratory test that uses a microscope to manually examine tumor tissue for genetic changes. |
11 | $58 | $250 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
0.4% high complexity
7.1% medium
92.5% routine
Industry Payment Transparency
Open Payments through 2024 ↗$17,867
Total received (2018-2024)
Avg $2,552/year across 7 years
Top 13% in TX for urology physician
16
Companies
59
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$8,931 (50.0%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$7,251 (40.6%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$1,685 (9.4%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$9,649
2023
$6,041
2022
$1,117
2021
$188
2020
$104
2019
$654
2018
$114
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Janssen Biotech, Inc.
$4,937
INTUITIVE SURGICAL, INC.
$4,859
UroGen Pharma, Inc.
$2,419
Janssen Scientific Affairs, LLC
$1,989
AstraZeneca Pharmaceuticals LP
$1,683
E.R. Squibb & Sons, L.L.C.
$840
Intuitive Surgical, Inc.
$541
UROGEN PHARMA, INC.
$243
Astellas Pharma US Inc
$106
Photocure Inc
$105
Merck Sharp & Dohme Corporation
$44
Merck Sharp & Dohme LLC
$29
Sumitomo Pharma America, Inc.
$22
Ferring Pharmaceuticals Inc.
$22
Endo Pharmaceuticals Inc.
$17
KARL STORZ Endoscopy-America
$12
Top 3 companies account for 68.4% of total payments
Associated products mentioned in payments ›
ADSTILADRIN · Cysview · DA VINCI SP · Da Vinci Surgical System · ERLEADA · GEMTESA · IMFINZI · JELMYTO · KEYTRUDA · Veozah · XIAFLEX · n.a.
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
The majority of payments (50%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers.
Equivalent to $442 per 100 Medicare services performed
Geographic Context
Urology physicians within 10 mi
99
Per 100K population
4.9
County median income
$70,571
Nearest hospital
UNIVERSITY HEALTH SYSTEM
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Zainfeld is a clinical cardiology specialist, with above-average Medicare volume (top 30% in TX), with consulting-driven industry engagement in the top 13% of TX peers.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Zainfeld experienced with infectious disease dna/rna test?
Based on Medicare claims data, Dr. Zainfeld performed 941 infectious disease dna/rna test services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Zainfeld receive payments from pharmaceutical companies?
Yes. Dr. Zainfeld received a total of $17,867 from 16 companies across 59 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Zainfeld's costs compare to other urology physicians in San Antonio?
Dr. Zainfeld's average Medicare payment per service is $57. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Zainfeld) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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