DR. CHANG YANG M.D.
NPI 1902219611
Hospitalist in Elmhurst, IL
About Dr. Chang Yang M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHANG YANG M.D. (NPI 1902219611) is an individual hospitalist provider in Elmhurst, Illinois, licensed in Illinois (036.143268) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with Ingalls Memorial Hospital, and maintains 5 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 5
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. Chang Yang M.d. 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
6Medicare enrollment records show Chang Yang reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Elmhurst, IL 60126
- Reassigned Medicare billing, Illinois enrollment
- 240 clinicians in this Medicare group
Chicago, IL 60637
- Reassigned Medicare billing, Illinois enrollment
- 1,905 clinicians in this Medicare group
Chicago, IL 60637
- Reassigned Medicare billing, Illinois enrollment
- 2,237 clinicians in this Medicare group
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 clinicians in this Medicare group
Lima, OH 45804
- Reassigned Medicare billing, Missouri enrollment
- 57 clinicians in this Medicare group
Greenwood Village, CO 80111
- Reassigned Medicare billing, Missouri, Ohio and Wisconsin enrollments
- 13 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 5
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ingalls Memorial Hospital
Acute Care Hospitals · Harvey, ILElmhurst Memorial Hospital
Acute Care Hospitals · Elmhurst, ILGundersen Lutheran Medical Center
Acute Care Hospitals · La Crosse, WICrossing Rivers Health Medical Center
Critical Access Hospitals · Prairie Du Chien, WIRichland Hospital
Critical Access Hospitals · Richland Center, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60126 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
ELMHURST, IL 60126
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 Chang Yang's NPI number?
The NPI number for Chang Yang is 1902219611. It was assigned to this individual provider in the NPPES registry on June 10, 2014.
Where is Chang Yang located?
Chang Yang practices at 155 E Brush Hill Rd, Elmhurst, IL 60126. The listed phone number is (331) 221-8952.
What is Chang Yang's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Chang Yang enrolled in Medicare?
Yes. Chang Yang 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 Chang Yang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chang Yang reassigns Medicare benefits to 6 organizations: Elmhurst Memorial Healthcare (Elmhurst, IL), The University Of Chicago Medical Center (Chicago, IL), University Of Chicago (Chicago, IL), Endeavor Health Medical Group (Evanston, IL), Midwest Hospitalist Physicians LLP (Lima, OH) and 1 more organization, listed in the Medicare section above. 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 Chang Yang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Chang Yang accept?
Health plans from CareSource list Chang Yang 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 Chang Yang affiliated with any hospitals?
According to CMS data, Chang Yang is affiliated with Ingalls Memorial Hospital, Elmhurst Memorial Hospital, Gundersen Lutheran Medical Center, Crossing Rivers Health Medical Center and Richland Hospital.
When was this NPI record last updated?
The NPPES record for Chang Yang was last updated on August 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 days 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. Chang Yang, M.D. · NPI 1902219611
Hospitalist physician in Elmhurst, Illinois. Individual provider, active in the CMS NPPES registry since June 10, 2014.
## Identity
- **NPI:** 1902219611 (Entity type: Individual)
- **Enumerated:** June 10, 2014
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036.143268 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 155 E BRUSH HILL RD, Elmhurst, IL 60126-5658
- **Phone:** (331) 221-8952
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Elmhurst Memorial Healthcare (NPI 1457493454, Elmhurst, IL); The University Of Chicago Medical Center (NPI 1033218128, Chicago, IL); University Of Chicago (NPI 1821048786, Chicago, IL); Endeavor Health Medical Group (NPI 1497701882, Evanston, IL); Midwest Hospitalist Physicians LLP (NPI 1891242319, Lima, OH); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** August 26, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1902219611) · Data from the CMS NPPES public registry.