DR. MICHAEL GEORGE MADAY MD
NPI 1902859341
Orthopaedic Surgery in Chicago, IL
About Dr. Michael George Maday Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL GEORGE MADAY MD (NPI 1902859341) is an individual orthopaedic surgery provider in Chicago, Illinois and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Advocate Trinity Hospital, and is a graduate of Columbia University College Of Physicians And Surgeons (1986).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
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. Michael George Maday Md 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
3Medicare enrollment records show Michael Maday reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60616
- Reassigned Medicare billing, Illinois enrollment
- 16 clinicians in this Medicare group
Chicago, IL 60616
- Reassigned Medicare billing, Illinois enrollment
- 354 clinicians in this Medicare group
Chicago, IL 60616
- Reassigned Medicare billing, Illinois enrollment
- 646 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 8
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Trinity Hospital
Acute Care Hospitals · Chicago, ILAdventist La Grange Memorial Hospital
Acute Care Hospitals · La Grange, ILAdvocate Christ Hospital & Medical Center
Acute Care Hospitals · Oak Lawn, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60616 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 60616
CHICAGO, IL 60616
CHICAGO, IL 60616
CHICAGO, IL 60616
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 Michael Maday's NPI number?
The NPI number for Michael Maday is 1902859341. It was assigned to this individual provider in the NPPES registry on May 18, 2006.
Where is Michael Maday located?
Michael Maday practices at 2850 S Wabash Ave Suite 100, Chicago, IL 60616. The listed phone number is (312) 842-4600.
What is Michael Maday's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Michael Maday enrolled in Medicare?
Yes. Michael Maday 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 Michael Maday's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Maday reassigns Medicare benefits to 3 organizations: Midland Orthopedic Associates PLLC (Chicago, IL), Insight Chicago, Inc. (Chicago, IL) and Mount Sinai Community Foundation (Chicago, 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 Michael Maday's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Maday accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Michael Maday as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Michael Maday affiliated with any hospitals?
According to CMS data, Michael Maday is affiliated with Advocate Trinity Hospital, Adventist La Grange Memorial Hospital and Advocate Christ Hospital & Medical Center.
When was this NPI record last updated?
The NPPES record for Michael Maday was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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. Michael George Maday, MD · NPI 1902859341
Orthopaedic Surgery physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since May 18, 2006.
## Identity
- **NPI:** 1902859341 (Entity type: Individual)
- **Enumerated:** May 18, 2006
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **Sole proprietor:** No
## Practice location
- **Address:** 2850 S WABASH AVE, SUITE 100, Chicago, IL 60616-2955
- **Phone:** (312) 842-4600 · **Fax:** (312) 842-8694
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Midland Orthopedic Associates PLLC (NPI 1104863638, Chicago, IL); Insight Chicago, Inc. (NPI 1881261006, Chicago, IL); Mount Sinai Community Foundation (NPI 1851454698, Chicago, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Columbia University College Of Physicians And Surgeons, class of 1986
## Record status
- **NPPES last updated:** July 9, 2007
- **Other identifiers:** Medicare PIN L22463 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1902859341) · Data from the CMS NPPES public registry.