CHRISTOPHER M MASI MD
NPI 1487716932
Internal Medicine in Burr Ridge, IL
About Christopher M Masi Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTOPHER M MASI MD (NPI 1487716932) is an individual internal medicine provider in Burr Ridge, Illinois, licensed in Georgia (79185) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Emory University Hospital, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (1989).
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
Christopher M Masi 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
2Medicare enrollment records show Christopher Masi reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Atlanta, GA 30322
- Reassigned Medicare billing, Georgia enrollment
- 4,840 clinicians in this Medicare group
Lagrange, GA 30240
- Reassigned Medicare billing, Georgia enrollment
- 1,506 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 10
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.
Emory University Hospital
Acute Care Hospitals · Atlanta, GAEmory Decatur Hospital
Acute Care Hospitals · Decatur, GASaint Joseph's Hospital Of Atlanta, Inc
Acute Care Hospitals · Atlanta, GAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60527 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.
BURR RIDGE, IL 60527
BURR RIDGE, IL 60527
BURR RIDGE, IL 60527
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 Christopher Masi's NPI number?
The NPI number for Christopher Masi is 1487716932. It was assigned to this individual provider in the NPPES registry on December 14, 2006.
Where is Christopher Masi located?
Christopher Masi practices at 180 Harvester Dr Ste 110, Burr Ridge, IL 60527. The listed phone number is (773) 834-4064.
What is Christopher Masi's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Christopher Masi enrolled in Medicare?
Yes. Christopher Masi 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 Christopher Masi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Masi reassigns Medicare benefits to 2 organizations: The Emory Clinic Inc (Atlanta, GA) and Emory Specialty Associates, LLC (Lagrange, GA). 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 Christopher Masi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Christopher Masi accept?
Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list Christopher Masi 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 Christopher Masi affiliated with any hospitals?
According to CMS data, Christopher Masi is affiliated with Emory University Hospital, Emory Decatur Hospital and Saint Joseph's Hospital Of Atlanta, Inc.
When was this NPI record last updated?
The NPPES record for Christopher Masi was last updated on March 23, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.