Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

William Walsh, MD

Individual provider Emergency Medicine Physician · NPI 1659355972

William Walsh, MD practises Emergency Medicine in Evergreen Park, Illinois. Qualified in 1998, 28 years ago. Practices with Cook County, a 787-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
28
Licensed in
IL
In the registry since
2005
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

2800 W 95th St
Evergreen Park, IL 60805-2746
Phone: (708) 422-4221
Fax: (708) 422-4415
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medical Services (Emergency Medicine) Physician (primary) Taxonomy 207PE0004X · Licence 036103168 (IL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 036103168 (IL)

Record details

NPI number1659355972
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 30, 2005
Last updated in NPPESFebruary 12, 2018

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Cook County — 787 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients66
Services billed 71 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Cook County

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 787 clinicians in the practice; 12 are shown here.

Other providers in Evergreen Park