Dr. William Demarchi, MD
What this data tells you about Dr. Demarchi
Dr. William Demarchi is a family medicine - adult in Boca Raton, FL, with 20 years in practice. Based on federal Medicare data, Dr. Demarchi performed 1,167 Medicare services across 752 unique beneficiaries.
Between the years covered by Open Payments, Dr. Demarchi received a total of $7,895 from 37 pharmaceutical and/or device companies across 479 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in family medicine - adult. 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. Demarchi 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 |
|---|---|---|---|
| Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 596 | $116 | $308 |
| Office visit, established patient (30-39 min) | 283 | $92 | $292 |
| Annual wellness visit, follow-up | 86 | $131 | $324 |
| Annual depression screening | 78 | $19 | $46 |
| Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 60 | $138 | $365 |
| Advance care planning consultation, first 30 min | 34 | $63 | $166 |
| Electrocardiogram (EKG), 12-lead | 30 | $11 | $73 |
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)
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 8% for family medicine - adult in FL.
Geographic Context
3.7 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. Demarchi is a clinical cardiology specialist, with above-average Medicare volume (top 19% in FL), and high industry engagement (low-engagement, top 8%), with 20 years of practice experience.
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. Demarchi experienced with subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes?
Does Dr. Demarchi receive payments from pharmaceutical companies?
How do Dr. Demarchi's costs compare to other family medicine - adults in Boca Raton?
What does Data Coverage mean?
Is this data up to date?
Explore related providers
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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