Dr. Santiago Chahwan, M.D.
What this data tells you about Dr. Chahwan
Dr. Santiago Chahwan is a vascular surgery physician in Naples, FL, with 18 years in practice. Based on federal Medicare data, Dr. Chahwan performed 2,478 Medicare services across 1,047 unique beneficiaries.
Between the years covered by Open Payments, Dr. Chahwan received a total of $12,200 from 35 pharmaceutical and/or device companies across 236 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in vascular surgery 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. Chahwan 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 |
|---|---|---|---|
| Contrast dye for imaging (iodine-based) | 1,252 | $0 | $2 |
| Office visit, established patient (20-29 min) | 336 | $68 | $192 |
| Office visit, established patient (30-39 min) | 162 | $105 | $209 |
| New patient office visit (30-44 min) | 147 | $87 | $292 |
| New patient office visit (45-59 min) | 113 | $139 | $328 |
| Removal of skin and tissue, 20.0 sq cm or less | 87 | $43 | $259 |
| Ultrasound of both sides of head and neck blood flow | 32 | $138 | $642 |
| Ultrasound of leg arteries or artery grafts | 32 | $177 | $822 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | 30 | $79 | $380 |
| Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts | 27 | $130 | $607 |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 25 | $71 | $207 |
| Ultrasound study of arm or leg veins with compression and maneuvers | 23 | $28 | $75 |
| Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 22 | $41 | $159 |
| Removal of blood clot and portion of chest, neck, or brain artery | 20 | $1,013 | $3,205 |
| Injection, protamine sulfate, per 10 mg | 17 | $1 | $4 |
| Ultrasonic guidance for blood vessel access | 15 | $33 | $99 |
| Ultrasound of one side of head and neck blood flow | 15 | $84 | $413 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 15 | $42 | $162 |
| Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes | 15 | $9 | $35 |
| Injection, midazolam hydrochloride, per 1 mg | 15 | $0 | $4 |
| Injection, fentanyl citrate, 0.1 mg | 15 | $1 | $4 |
| Ultrasound of one leg arteries or artery grafts | 14 | $83 | $428 |
| Infusion, normal saline solution, sterile (500 ml = 1 unit) | 14 | $1 | $2 |
| Removal of tunneled central venous tube | 13 | $139 | $458 |
| Removal of plaque in arteries of leg | 11 | $404 | $23,162 |
| Measurement of brain wave activity (eeg) outside the brain during surgery | 11 | $43 | $292 |
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 (79%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
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. Chahwan is a clinical cardiology specialist, with above-average Medicare volume (top 12% in FL), and low-engagement industry engagement, with 18 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. Chahwan experienced with contrast dye for imaging (iodine-based)?
Does Dr. Chahwan receive payments from pharmaceutical companies?
How do Dr. Chahwan's costs compare to other vascular surgery physicians in Naples?
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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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