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

Dr. John Thomas Downing, DO

Individual provider Emergency Medicine Physician · NPI 1073889242

Dr. John Thomas Downing, DO practises Emergency Medicine in Chicago, Illinois. Qualified in 2012, 14 years ago. Practices with Clarksville Emergency Group PC, a 152-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois and Indiana.

Years since qualifying
14
Licensed in
IL, IN
In the registry since
2012
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

836 W Wellington Ave
Chicago, IL 60657-5147
Phone: (773) 975-1600
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 5454 Hohman Ave, Hammond, IN 46320 — (219) 932-2300

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036.140717 (IL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 02004823A (IN)

Record details

NPI number1073889242
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 1, 2012
Last updated in NPPESDecember 21, 2023
Certification dateDecember 21, 2023

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Clarksville Emergency Group Pc — 152 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 patients544
Services billed 611 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 Clarksville Emergency Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 152 clinicians in the practice; 12 are shown here.

Other providers in Chicago