Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Leo I Stemp, MD

Individual provider Anesthesiology Physician · NPI 1528020278

Leo I Stemp, MD is an Anesthesiology in Springfield, Massachusetts. Graduated from Harvard Medical School in 1983, 43 years ago. Practices with Adfinitas Health at the Mercy Hospital PLLC, an 8-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
43
Trained at
Harvard Medical School
Licensed in
MA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 Stafford St Ste 300
Springfield, MA 01104-3581
Phone: (413) 748-9860
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 78458 (MA)
Anesthesiology Physician Taxonomy 207L00000X · Licence 78458 (MA)

Record details

NPI number1528020278
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 6, 2006
Last updated in NPPESJanuary 10, 2008
Mailing address157 Newgate Rd, East Granby, CT 06026-9545

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1983 (43 years in practice)
Group practice Adfinitas Health At The Mercy Hospital Pllc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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