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Dr. Thomas B. Arnau, M.D.

Family Medicine (Family Medicine Physician)

  • Medicare participating

At a glance

In the NPI registry since
2006
Medicare patients seen, 2024
17,208

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

  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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

  • Family Medicine Physician primary
    SC license 11169

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

Map: Family Medicine per capita by county →

Medicare patients and services

Medicare patients, 2024
17,208
Services billed
181,901
Patients’ average age
74
Most frequent Medicare services, 2023
ServiceTimesPatients
Blood test, comprehensive group of blood chemicals30,49615,847
Blood test, lipids (cholesterol and triglycerides)26,51415,334
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count24,31413,595
Hemoglobin a1c level22,70911,707
Blood test, thyroid stimulating hormone (tsh)16,87410,286
Vitamin d-3 level6,6594,965
Thyroxine (thyroid chemical), free6,0893,674
Creatinine level to test for kidney function or muscle injury5,8724,308
Urine microalbumin (protein) level5,8704,307
Insertion of needle into vein for collection of blood sample5,5893,157

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.

Medicare prescriptions

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Other Family Medicine clinicians in Charleston

Sources

NPI registry (CMS NPPES, November 2026; record last updated July 6, 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 1477510022. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.