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Dr. Eileen J. Cloonan, MD

Hospitalist (Hospitalist Physician)

  • Medicare participating

At a glance

Years since graduation
20
In the NPI registry since
2007
Medicare patients seen, 2024
12

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

  • 2007Registered 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

  • Hospitalist Physician primary
    NV license 24680
  • Family Medicine Physician
    FL license ME158143 · ME license MD19122 · NV license 24680

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

Map: Hospitalist 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
12
Services billed
13
Patients’ average age
81
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes16265
Hospital discharge day management, 30 minutes or less6255
Established patient office or other outpatient visit, 20-29 minutes5751
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes5246
Established patient office or other outpatient visit, 30-39 minutes1614
Annual depression screening, 5 to 15 minutes1111

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 Hospitalist clinicians in Las Vegas

Sources

NPI registry (CMS NPPES, November 2026; record last updated April 29, 2024), 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 1447448311. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.