MARIO LEONE MD
NPI 1578060927
Internal Medicine - Nephrology in Youngstown, OH
About Mario Leone Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIO LEONE MD (NPI 1578060927) is an individual nephrology provider in Youngstown, Ohio, licensed in Ohio (35.148136) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS, is affiliated with St Elizabeth Youngstown Hospital, and is a graduate of Northeastern Ohio University College Of Medicine (2018).
NPPES Registry Identity
Specialties & Licenses 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
Mario Leone 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 Reassignment
Medicare enrollment records show Mario Leone reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Youngstown, OH 44504
- Reassigned Medicare billing, Ohio and Pennsylvania enrollments
- 19 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 8
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.
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, OHSurgical Hospital At Southwoods
Acute Care Hospitals · Youngstown, 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Mario Leone's NPI number?
The NPI number for Mario Leone is 1578060927. It was assigned to this individual provider in the NPPES registry on April 11, 2018.
Where is Mario Leone located?
Mario Leone practices at 1340 Belmont Ave Ste 2300, Youngstown, OH 44504. The listed phone number is (330) 393-3376.
What is Mario Leone's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Mario Leone enrolled in Medicare?
Yes. Mario Leone 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 Mario Leone's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mario Leone reassigns Medicare benefits to The Kidney Group, Inc (Youngstown, OH). 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 Mario Leone's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mario Leone accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 3 other insurers list Mario Leone 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 Mario Leone affiliated with any hospitals?
According to CMS data, Mario Leone is affiliated with St Elizabeth Youngstown Hospital, Mh St Joseph Warren Hospital, Salem Regional Medical Center, Hmhp St Elizabeth Boardman Health Center and Surgical Hospital At Southwoods.
When was this NPI record last updated?
The NPPES record for Mario Leone was last updated on June 28, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.