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

Dr. Timothy Alan Williams Jr., MD

Individual provider Family Medicine Physician · NPI 1124645700

Dr. Timothy Alan Williams Jr., MD is a Hospitalist in Chicago, Illinois. Qualified in 2019, 7 years ago. Practices with University of Chicago, a 1,681-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
7
Licensed in
IL
In the registry since
2020
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

1625 E 75th St Fl 1
Chicago, IL 60649-3603
Phone: (773) 947-7310
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5841 S Maryland Ave, Chicago, IL 60637-1443 — (888) 824-0200

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 036163881 (IL)
Family Medicine Physician Taxonomy 207Q00000X · Licence 125.077201 (IL)

Record details

NPI number1124645700
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2020
Last updated in NPPESJanuary 23, 2025
Certification dateJanuary 23, 2025

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesFAMILY PRACTICE
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice University Of Chicago — 1681 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 patients176
Services billed 491 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 University of Chicago

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1681 clinicians in the practice; 12 are shown here.

Other providers in Chicago