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Dr. David O. Williams, MD

Cardiology (Cardiovascular Disease Physician)

2 Dudley St, Suite 360
Providence, RI 02905

Who else practices at this address →

Providence County includes mental health (6% of residents) shortage areas. About shortage areas

Call (401) 444-4581

At a glance

In the NPI registry since
2006

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

  • Cardiovascular Disease Physician primary
    MA license 150891
  • Internal Medicine Physician
    MA license 150891
  • Interventional Cardiology Physician
    MA license 150891 · RI license MD05000

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

Map: Cardiology per capita by county →

Medicare patients and services

Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 30-39 minutes314286
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only6965
New patient office or other outpatient visit, 45-59 minutes4141
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician3232
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician3232
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional2522

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 Cardiology clinicians in Providence

Sources

NPI registry (CMS NPPES, November 2026; record last updated January 17, 2019), 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 1487676938. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.