Dr. John Williams, MD
What this data tells you about Dr. Williams
Dr. John Williams is an urology physician in Jacksonville, FL, with 19 years of NPI registration. Based on federal Medicare data, Dr. Williams performed 5,165 Medicare services across 2,876 unique beneficiaries.
Between the years covered by Open Payments, Dr. Williams received a total of $513 from 14 pharmaceutical and/or device companies across 25 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in urology physician. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Williams 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.
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 |
|---|---|---|---|
| Automated urinalysis An automated laboratory test performed on a urine sample to analyze its chemical and physical properties. The procedure uses machinery to detect various substances and cells within the urine. |
1,759 | $2 | $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. |
1,281 | $65 | $287 |
| 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. |
403 | $96 | $406 |
| Leuprolide acetate (for depot suspension), 7.5 mg | 231 | $133 | $572 |
| Injection, garamycin, gentamicin, up to 80 mg | 188 | $2 | $10 |
| 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. |
171 | $39 | $120 |
| 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. |
154 | $102 | $426 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
152 | $61 | $225 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
140 | $11 | $44 |
| 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. |
110 | $80 | $355 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
92 | $74 | $350 |
| Cystourethroscopy A diagnostic exam of the bladder and urethra using an endoscope to visually inspect the urinary tract. |
85 | $179 | $739 |
| Subcutaneous or intramuscular chemotherapy injection This procedure involves administering anti-cancer hormonal medication through an injection into the tissue under the skin or into a muscle. |
60 | $26 | $101 |
| Bladder ultrasound after voiding An ultrasound scan performed after urination to measure the amount of urine remaining in the bladder. |
57 | $8 | $60 |
| Simple insertion of temporary bladder tube A procedure to place a temporary tube into the bladder. This allows for the drainage of urine from the bladder. |
48 | $47 | $200 |
| 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. |
38 | $129 | $1,401 |
| Ureteral stent insertion via cystoscopy A tube is placed into the ureter using an endoscope inserted through the bladder. |
26 | $77 | $978 |
| 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. |
26 | $37 | $175 |
| Imaging of urinary tract with contrast An imaging test of the urinary tract performed after a contrast agent is injected to enhance visibility of the structures. |
23 | $19 | $237 |
| 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. |
20 | $116 | $530 |
| Ceftriaxone antibiotic injection This code represents the administration of ceftriaxone sodium, an antibiotic medication. The charge is calculated for every 250 mg of the drug administered. |
18 | $0 | $12 |
| Laser vaporization of prostate A procedure that uses a laser to remove excess prostate tissue through an endoscope. The process includes controlling any bleeding that occurs during the treatment. |
17 | $550 | $5,397 |
| Ureteral stone crushing with stent insertion An endoscope is used to break up a stone in the ureter, followed by the placement of a stent to keep the ureter open. |
15 | $328 | $1,344 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
14 | $15 | $70 |
| 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. |
13 | $18 | $282 |
| Prostate needle biopsy with image guidance A procedure to remove small tissue samples from the prostate gland using a needle. Image guidance is used to help the doctor accurately locate the area for sampling. |
12 | $293 | $1,208 |
| Transrectal ultrasound of the pelvis An ultrasound imaging procedure where a probe is inserted into the rectum to visualize pelvic structures. |
12 | $25 | $430 |
Industry Payment Transparency
Open Payments through 2023 ↗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 (2023)
Associated products mentioned in payments ›
Most payments (79%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
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 2023 |
| 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. Williams is a clinical cardiology specialist, with above-average Medicare volume (top 24% in FL), with low-engagement industry engagement, with 19 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. 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. 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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