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Dr. Robert J. Glennon, MD

Critical Care Medicine (Critical Care Medicine (Internal Medicine) Physician)

  • Medicare participating

At a glance

Years since graduation
39
In the NPI registry since
2006
Medicare patients seen, 2024
75

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

  • 1987Medical school: Icahn School of Medicine at Mount Sinai
  • 2006Registered 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

  • Critical Care Medicine (Internal Medicine) Physician primary
    NY license 180503
  • Pulmonary Disease Physician
    NY license 180503

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

Map: Critical Care Medicine 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
75
Services billed
159
Patients’ average age
80
Most frequent Medicare services, 2023
ServiceTimesPatients
Critical care, first 30-74 minutes10157
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes2321
Insertion of non-tunneled central venous tube for infusion (5 years or older)1917

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 Critical Care Medicine clinicians in New York

Sources

NPI registry (CMS NPPES, November 2026; record last updated August 1, 2023), 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 1336167519. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.