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Dr. Leo I. Stemp, MD

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

  • Medicare participating

At a glance

Medical school
Harvard Medical School (1983)
Years since graduation
43
In the NPI registry since
2006
Medicare patients seen, 2024
201

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

  • 1983Medical school: Harvard Medical School
  • 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
    MA license 78458
  • Anesthesiology Physician
    MA license 78458

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
201
Services billed
224
Patients’ average age
71
Most frequent Medicare services, 2023
ServiceTimesPatients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope2726
Anesthesia for other procedure on large bowel using an endoscope2121
Anesthesia for other procedure on urinary system through urethra1917
Anesthesia for procedure on small and large bowel using an endoscope1818
Anesthesia for exam of colon using an endoscope1313

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 Springfield

Sources

NPI registry (CMS NPPES, November 2026; record last updated January 10, 2008), 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 1528020278. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.