Dr. Michael Gazzaniga, MD
What this data tells you about Dr. Gazzaniga
Dr. Michael Gazzaniga is an urology physician in Fullerton, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Gazzaniga performed 1,758 Medicare services across 1,390 unique beneficiaries.
Between the years covered by Open Payments, Dr. Gazzaniga received a total of $23,049 from 13 pharmaceutical and/or device companies across 107 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in urology physician. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Gazzaniga is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗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 |
|---|---|---|---|
| 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. |
509 | $101 | $352 |
| 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. |
221 | $73 | $250 |
| 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. |
112 | $126 | $455 |
| Cystourethroscopy A diagnostic exam of the bladder and urethra using an endoscope to visually inspect the urinary tract. |
107 | $220 | $698 |
| Bladder ultrasound after voiding An ultrasound scan performed after urination to measure the amount of urine remaining in the bladder. |
92 | $10 | $32 |
| Manual urinalysis with microscopic examination A urine test performed manually without automated equipment. The sample is examined under a microscope to check for abnormalities. |
79 | $4 | $13 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
70 | $47 | $158 |
| Ultrasound of abdomen and pelvis blood flow An ultrasound exam that uses sound waves to visualize and assess blood flow through the arteries and veins in the abdomen and pelvis. |
69 | $124 | $464 |
| Limited retroperitoneal ultrasound A focused ultrasound exam of the area behind the abdominal cavity to evaluate specific structures. |
54 | $54 | $168 |
| Implantable tissue marker, each A small marker is implanted into tissue to serve as a reference point for future medical imaging or procedures. |
44 | $86 | $426 |
| Electronic assessment of bladder emptying A test that uses electronic monitoring to evaluate how well the bladder empties urine. |
41 | $6 | $49 |
| Complete pelvic ultrasound An imaging test using sound waves to create pictures of the organs and structures within the pelvis. |
40 | $94 | $308 |
| Complex urodynamic pressure flow study A test that measures the pressure of urine flow in the bladder during voiding to evaluate how well the bladder and urethra are functioning. |
36 | $334 | $1,064 |
| Non-needle muscle activity measurement of bladder and bowel openings This procedure measures and records the electrical activity of muscles at the bladder and bowel openings without using needles. |
35 | $29 | $179 |
| Abdominal device insertion with pressure and urine flow study A procedure involving the placement of a device into the abdomen, accompanied by a study to measure pressure and urine flow rate. |
35 | $182 | $567 |
| Transrectal ultrasound of the pelvis An ultrasound imaging procedure where a probe is inserted into the rectum to visualize pelvic structures. |
32 | $129 | $596 |
| 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. |
32 | $87 | $309 |
| Limited ultrasound of pelvis A focused ultrasound exam of the pelvic area to evaluate specific structures. This procedure provides images of the pelvis to assist in medical assessment. |
30 | $39 | $139 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
27 | $53 | $165 |
| Bladder cancer protein test A laboratory test that measures specific proteins to help diagnose and monitor bladder cancer. |
24 | $21 | $60 |
| Prostate gland biopsy A procedure to remove small samples of tissue from the prostate gland for laboratory examination. |
18 | $219 | $682 |
| Urethral dilation using endoscope A procedure to widen the urethra using a thin, lighted tube called an endoscope. This helps to open a narrowed urethral passage. |
17 | $301 | $936 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
12 | $149 | $461 |
| Injection of biodegradable material next to prostate A procedure involving the injection of a biodegradable substance into the tissue surrounding the prostate gland. |
11 | $2,789 | $8,692 |
| Prostate radiation therapy device placement A device is placed in the prostate to facilitate radiation therapy. This procedure involves positioning the device to aid in the delivery of radiation treatment. |
11 | $137 | $426 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
The majority of payments (94%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in urology physician and does not inherently indicate bias, but patients may wish to be aware.
Geographic Context
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 reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Gazzaniga is a clinical cardiology specialist, with moderate Medicare volume, with speaking/promotional industry engagement in the top 11% of CA peers, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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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. Data Coverage reflects 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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