DR. JOHN THOMAS DOWNING DO
NPI 1073889242
Emergency Medicine in Chicago, IL
About Dr. John Thomas Downing Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN THOMAS DOWNING DO (NPI 1073889242) is an individual emergency medicine provider in Chicago, Illinois, licensed in Illinois (036.140717) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Franciscan Health Dyer, and maintains a secondary practice location in Hammond.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. John Thomas Downing Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show John Downing reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60657
- Reassigned Medicare billing, Illinois enrollment
- 4,870 clinicians in this Medicare group
Lafayette, IN 47905
- Reassigned Medicare billing, Indiana enrollment
- Medicare enrollment name: Lafayette Emergency Care PC
- 57 clinicians in this Medicare group
Corydon, IN 47112
- Reassigned Medicare billing, Indiana enrollment
- 214 clinicians in this Medicare group
- Reassigned Medicare billing, Illinois enrollment
- 55 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Franciscan Health Dyer
Acute Care Hospitals · Dyer, INFranciscan Health Munster
Acute Care Hospitals · Munster, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60657 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60657
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Downing's NPI number?
The NPI number for John Downing is 1073889242. It was assigned to this individual provider in the NPPES registry on April 1, 2012.
Where is John Downing located?
John Downing practices at 836 W Wellington Ave, Chicago, IL 60657. The listed phone number is (773) 975-1600.
What is John Downing's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Downing enrolled in Medicare?
Yes. John Downing is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Downing's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Downing reassigns Medicare benefits to 4 organizations: Advocate Health And Hospitals Corp. (Chicago, IL), Lafayette Emergency Care, P.C. (Lafayette, IN), Clarksville Emergency Group, PC (Corydon, IN) and Valley Emergency Care Management Inc (IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Downing's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Downing affiliated with any hospitals?
According to CMS data, John Downing is affiliated with Franciscan Health Dyer and Franciscan Health Munster.
When was this NPI record last updated?
The NPPES record for John Downing was last updated on December 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. John Thomas Downing, DO · NPI 1073889242
Emergency Medicine physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since April 1, 2012.
## Identity
- **NPI:** 1073889242 (Entity type: Individual)
- **Enumerated:** April 1, 2012
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 036.140717 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 836 W WELLINGTON AVE, Chicago, IL 60657-5147
- **Phone:** (773) 975-1600
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Advocate Health And Hospitals Corp. (NPI 1487951711, Chicago, IL); Lafayette Emergency Care, P.C. (NPI 1861447211, Lafayette, IN); Clarksville Emergency Group, PC (NPI 1023487154, Corydon, IN); Valley Emergency Care Management Inc (IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** December 21, 2023
- **Other identifiers:** Medicaid 201370550 (IN)
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Source: [NPI Profile](https://npiprofile.com/npi/1073889242) · Data from the CMS NPPES public registry.