MICHAEL N FORTSAS MD
NPI 1497764518
Internal Medicine - Interventional Cardiology in Barrington, IL
About Michael N Fortsas Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL N FORTSAS MD (NPI 1497764518) is an individual interventional cardiology provider in Barrington, Illinois, licensed in Illinois (036090812) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and is a graduate of Other (1989).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
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
Michael N Fortsas 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 Michael Fortsas reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Park Ridge, IL 60068
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Advocate Health And Hospitals Corporation
- 4,870 clinicians in this Medicare group
West Allis, WI 53227
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 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 24
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.
Advocate Sherman Hospital
Acute Care Hospitals · Elgin, ILNorthwestern Medicine Mchenry
Acute Care Hospitals · Mchenry, ILAdvocate Condell Medical Center
Acute Care Hospitals · Libertyville, ILAdvocate Good Shepherd Hospital
Acute Care Hospitals · Barrington, ILAurora Medical Ctr Oshkosh
Acute Care Hospitals · Oshkosh, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60010 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BARRINGTON, IL 60010
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 Fortsas's NPI number?
The NPI number for Michael Fortsas is 1497764518. It was assigned to this individual provider in the NPPES registry on August 7, 2006.
Where is Michael Fortsas located?
Michael Fortsas practices at 27750 W Highway 22 Ste 220, Barrington, IL 60010. The listed phone number is (815) 206-5700.
What is Michael Fortsas's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Michael Fortsas enrolled in Medicare?
Yes. Michael Fortsas 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 Fortsas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Fortsas reassigns Medicare benefits to 2 organizations: Lutheran General Hospital (Park Ridge, IL) and Aurora Medical Group, Inc. (West Allis, WI). 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 Fortsas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Fortsas accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, CareSource (Common Ground Healthcare) and Oscar Health list Michael Fortsas 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 Fortsas affiliated with any hospitals?
According to CMS data, Michael Fortsas is affiliated with Advocate Sherman Hospital, Northwestern Medicine Mchenry, Advocate Condell Medical Center, Advocate Good Shepherd Hospital and Aurora Medical Ctr Oshkosh.
When was this NPI record last updated?
The NPPES record for Michael Fortsas was last updated on August 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.