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

Individual provider Medical Toxicology (Emergency Medicine) Physician · NPI 1699064857

Katherine Louise Welker, MD is a Medical Toxicology (Emergency Medicine) Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2011.

Licensed in
IL
In the registry since
2011
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

1917 W Evergreen Ave Apt 3R
Chicago, IL 60622-4793
Phone: (619) 201-3982
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036135583 (IL)
Medical Toxicology (Emergency Medicine) Physician Taxonomy 207PT0002X · Licence 036135583 (IL)

Record details

NPI number1699064857
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 28, 2011
Last updated in NPPESDecember 1, 2021

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients15
Services billed 15 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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