DR. GABY B AOUN M.D.
NPI 1255427167
Internal Medicine - Interventional Cardiology in Youngstown, OH
About Dr. Gaby B Aoun M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GABY B AOUN M.D. (NPI 1255427167) is an individual interventional cardiology provider in Youngstown, Ohio, licensed in Ohio (35.099524) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with St Elizabeth Youngstown Hospital, and is a graduate of Other (1991).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
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. Gaby B Aoun 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
2Medicare enrollment records show Gaby Aoun reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Youngstown, OH 44504
- Reassigned Medicare billing, Ohio enrollment
- 744 clinicians in this Medicare group
Youngstown, OH 44504
- Reassigned Medicare billing, Ohio enrollment
- 374 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 23
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Elizabeth Youngstown Hospital
Acute Care Hospitals · Youngstown, OHMh St Joseph Warren Hospital
Acute Care Hospitals · Warren, OHSalem Regional Medical Center
Acute Care Hospitals · Salem, OHHmhp St Elizabeth Boardman Health Center
Acute Care Hospitals · Boardman, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 44504 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.
YOUNGSTOWN, OH 44504
YOUNGSTOWN, OH 44504
YOUNGSTOWN, OH 44504
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 Gaby Aoun's NPI number?
The NPI number for Gaby Aoun is 1255427167. It was assigned to this individual provider in the NPPES registry on October 5, 2006.
Where is Gaby Aoun located?
Gaby Aoun practices at 1001 Belmont Ave, Youngstown, OH 44504. The listed phone number is (330) 747-6466.
What is Gaby Aoun's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Gaby Aoun enrolled in Medicare?
Yes. Gaby Aoun 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 Gaby Aoun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gaby Aoun reassigns Medicare benefits to 2 organizations: Mercy Health Physicians Youngstown Specialty Care LLC (Youngstown, OH) and Mercy Health Physicians Youngstown, LLC (Youngstown, OH). 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 Gaby Aoun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gaby Aoun accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and Antidote Health Plan of Ohio, Inc. and 5 other insurers list Gaby Aoun 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 Gaby Aoun affiliated with any hospitals?
According to CMS data, Gaby Aoun is affiliated with St Elizabeth Youngstown Hospital, Mh St Joseph Warren Hospital, Salem Regional Medical Center and Hmhp St Elizabeth Boardman Health Center.
When was this NPI record last updated?
The NPPES record for Gaby Aoun was last updated on June 25, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.