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Dr. Frederick W. Dreyer III, MD

Radiology (Diagnostic Radiology Physician)

  • Medicare participating

At a glance

Years since graduation
35
In the NPI registry since
2005
Medicare patients seen, 2024
2,748

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1991Medical school: University of Miami, Lm Miller School of Medicine
  • 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Diagnostic Radiology Physician primary
    SC license 28431

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Radiology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
2,748
Services billed
4,501
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
X-ray of chest, 1 view1,265996
Ct scan head or brain without contrast566494
X-ray of abdomen, 1 view266220
Ct scan of abdomen and pelvis with contrast237231
Ct scan of blood vessels of chest with contrast154153
X-ray of chest, 2 views9595
Ct scan of blood vessels of head with contrast9492
Ct scan of blood vessels of neck with contrast9391
Ct scan of upper spine without contrast8886
Ct scan of chest with contrast8281

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Other Radiology clinicians in Greenville

Sources

NPI registry (CMS NPPES, November 2026; record last updated May 18, 2021), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1639161128. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.