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

Dr. Leo Treysman, MD

Individual provider Emergency Medicine Physician · NPI 1184838575

Dr. Leo Treysman, MD is an Emergency Medicine Physician in Hartford, Wisconsin. Works from 4 locations. Licensed in Illinois and Wisconsin.

Licensed in
IL, WI
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1032 E Sumner St
Hartford, WI 53027-1608
Phone: (262) 673-2300
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 1740 W Taylor St, Chicago, IL 60612-7232 — (866) 600-2273
  • 2661 County Highway I, Chippewa Falls, WI 54729-5407 — (715) 723-1811
  • 900 W Clairemont Ave, Eau Claire, WI 54701-6122 — (715) 717-4121

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 2022 (WI)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 036-124362 (IL)

Record details

NPI number1184838575
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 9, 2007
Last updated in NPPESMay 31, 2024
Certification dateMay 31, 2024
Mailing addressPo Box 735044, Chicago, IL 60673-5044

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