DR. EILEEN M MAHONEY M.D.
NPI 1720012446
Otolaryngology - Pediatric Otolaryngology in Hinsdale, IL
About Dr. Eileen M Mahoney M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. EILEEN M MAHONEY M.D. (NPI 1720012446) is an individual pediatric otolaryngology provider in Hinsdale, Illinois, licensed in Texas (W6081) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Adventist La Grange 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. Eileen M Mahoney 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
3Medicare enrollment records show Eileen Mahoney reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hinsdale, IL 60521
- Reassigned Medicare billing, Illinois enrollment
- 381 clinicians in this Medicare group
Saint Louis, MO 63104
- Reassigned Medicare billing, Missouri enrollment
- 1,294 clinicians in this Medicare group
San Antonio, TX 78207
- Reassigned Medicare billing, Texas enrollment
- 1,129 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 6
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Adventist La Grange Memorial Hospital
Acute Care Hospitals · La Grange, ILAdventist Hinsdale Hospital
Acute Care Hospitals · Hinsdale, ILOther Providers at the Same Location NPPES 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Eileen Mahoney's NPI number?
The NPI number for Eileen Mahoney is 1720012446. It was assigned to this individual provider in the NPPES registry on July 10, 2006.
Where is Eileen Mahoney located?
Eileen Mahoney practices at 11 Salt Creek Ln Ste 101, Hinsdale, IL 60521. The listed phone number is (630) 789-3110.
What is Eileen Mahoney's specialty?
The primary specialty registered for this NPI is Otolaryngology, specializing in Pediatric Otolaryngology, with taxonomy code 207YP0228X.
Is Eileen Mahoney enrolled in Medicare?
Yes. Eileen Mahoney 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 Eileen Mahoney's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eileen Mahoney reassigns Medicare benefits to 3 organizations: Adventist Health Partners, Inc (Hinsdale, IL), Ssm Health Care Group (Saint Louis, MO) and Community Medicine Associates (San Antonio, TX). 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 Eileen Mahoney's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Eileen Mahoney accept?
Health plans from Anthem Blue Cross and Blue Shield, Baylor Scott and White Health Plan, Community First, MedMutual and UnitedHealthcare list Eileen Mahoney 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 Eileen Mahoney affiliated with any hospitals?
According to CMS data, Eileen Mahoney is affiliated with Adventist La Grange Memorial Hospital and Adventist Hinsdale Hospital.
When was this NPI record last updated?
The NPPES record for Eileen Mahoney was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.