Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Michael Joseph Alfonzo, MD

Individual provider Emergency Medicine Physician · NPI 1932337326

Dr. Michael Joseph Alfonzo, MD is an Emergency Medicine Physician in New York, New York. Practices as a sole proprietor and works from 2 locations. Licensed in Connecticut and New York.

Licensed in
CT, NY
In the registry since
2009
Specialties on file
4
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

525 E 68th St Nyp-Weill Cornell Emergency Dept
New York, NY 10065-4870
Phone: (212) 746-3300
Fax: (212) 746-3556
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5 Perryridge Rd, Greenwich, CT 06830-4608 — (203) 863-3000

Specialties & licences

Pediatric Emergency Medicine (Pediatrics) Physician (primary) Taxonomy 2080P0204X · Licence 280310 (NY)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 51156 (CT)
Pediatrics Physician Taxonomy 208000000X · Licence 051156 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1932337326
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 24, 2009
Last updated in NPPESMarch 9, 2020
Certification dateMarch 9, 2020

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