Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Marcelo Silveira Guimaraes, MD

Individual provider Vascular & Interventional Radiology Physician · NPI 1790963684

Marcelo Silveira Guimaraes, MD practises Interventional Radiology in Charleston, South Carolina. Qualified in 1998, 28 years ago. Practices with University Medical Associates of the Medical University of South Carol, a 1,640-clinician group, accepts Medicare assignment and offers telehealth. Licensed in South Carolina.

Years since qualifying
28
Licensed in
SC
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

171 Ashley Ave
Charleston, SC 29425-8908 Not confirmed with CMS for 18 years — call before visiting
Phone: (843) 792-1414
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Vascular & Interventional Radiology Physician (primary) Taxonomy 2085R0204X · Licence AL24517 (SC)

Record details

NPI number1790963684
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 4, 2008
Last updated in NPPESFebruary 4, 2008

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERVENTIONAL RADIOLOGY
Also practisesDIAGNOSTIC RADIOLOGY
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice University Medical Associates Of The Medical University Of South Carol — 1640 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations7 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Varicose vein removal 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients520
Services billed 2,073 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Tidelands Georgetown Memorial Hospital Hospital · Georgetown, SC · listed as Georgetown Memorial Hospital
  • Tidelands Waccamaw Community Hospital Hospital · Murrells Inlet, SC · listed as Waccamaw Community Hospital
  • Musc Health Columbia Medical Center Downtown Hospital · Columbia, SC
  • Musc Health Florence Medical Center Hospital · Florence, SC
  • Musc Medical Center Hospital · Charleston, SC

Colleagues at University Medical Associates of the Medical University of South Carol

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1640 clinicians in the practice; 12 are shown here.

Other providers in Charleston