MICHAEL O'MARA D.O.
NPI 1366426710
Emergency Medicine in Evergreen Park, IL
About Michael O'mara D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL O'MARA D.O. (NPI 1366426710) is an individual emergency medicine provider in Evergreen Park, Illinois, licensed in Illinois (036-057007) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Ingalls Memorial Hospital, and is a graduate of Midwestern University, Chicago College Of Osteopathic Med (1977).
NPPES Registry Identity
Specialties & Licenses
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
Michael O'mara D.o. 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 Reassignment
Medicare enrollment records show Michael O'mara reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Calumet City, IL 60409
- Reassigned Medicare billing, Illinois enrollment
- 84 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ingalls Memorial Hospital
Acute Care Hospitals · Harvey, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60805 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.
EVERGREEN PARK, IL 60805
EVERGREEN PARK, IL 60805
EVERGREEN PARK, IL 60805
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 O'mara's NPI number?
The NPI number for Michael O'mara is 1366426710. It was assigned to this individual provider in the NPPES registry on November 30, 2005.
Where is Michael O'mara located?
Michael O'mara practices at 2800 W 95th St, Evergreen Park, IL 60805. The listed phone number is (708) 422-4221.
What is Michael O'mara's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Michael O'mara enrolled in Medicare?
Yes. Michael O'mara 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 organization bills Medicare for Michael O'mara's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael O'mara reassigns Medicare benefits to Harvey Emergency Physicians, PLLC (Calumet City, IL). The 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 O'mara's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Michael O'mara affiliated with any hospitals?
According to CMS data, Michael O'mara is affiliated with Ingalls Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Michael O'mara was last updated on March 14, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.