NATHAN ZEIDAN
NPI 1003494782
Internal Medicine - Nephrology in Youngstown, OH
About Nathan Zeidan NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHAN ZEIDAN (NPI 1003494782) is an individual nephrology provider in Youngstown, Ohio, licensed in Ohio (34.018686) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Robert Wood Johnson University Hospital, and is a graduate of West Virginia School Of Osteopathic Medicine (2021).
NPPES Registry Identity
Specialties & Licenses
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
Nathan Zeidan 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 Nathan Zeidan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Youngstown, OH 44514
- Reassigned Medicare billing, Ohio enrollment
- 16 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Robert Wood Johnson University Hospital
Acute Care Hospitals · New Brunswick, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 44514 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 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
YOUNGSTOWN, OH 44514
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 Nathan Zeidan's NPI number?
The NPI number for Nathan Zeidan is 1003494782. It was assigned to this individual provider in the NPPES registry on April 1, 2021.
Where is Nathan Zeidan located?
Nathan Zeidan practices at 807 Southwestern Run, Youngstown, OH 44514. The listed phone number is (330) 729-0059.
What is Nathan Zeidan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Nathan Zeidan enrolled in Medicare?
Yes. Nathan Zeidan 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 Nathan Zeidan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Zeidan reassigns Medicare benefits to Nephrology Associates, 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 Nathan Zeidan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nathan Zeidan accept?
Health plans from CareSource and Oscar Health Insurance list Nathan Zeidan 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 Nathan Zeidan affiliated with any hospitals?
According to CMS data, Nathan Zeidan is affiliated with Robert Wood Johnson University Hospital.
When was this NPI record last updated?
The NPPES record for Nathan Zeidan was last updated on June 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Nathan Zeidan · NPI 1003494782
Nephrology physician in Youngstown, Ohio. Individual provider, active in the CMS NPPES registry since April 1, 2021.
## Identity
- **NPI:** 1003494782 (Entity type: Individual)
- **Enumerated:** April 1, 2021
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** 34.018686 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 807 SOUTHWESTERN RUN, Youngstown, OH 44514-3688
- **Phone:** (330) 729-0059
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Nephrology Associates, Inc. (NPI 1841217825, Youngstown, OH), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** West Virginia School Of Osteopathic Medicine, class of 2021
## Record status
- **NPPES last updated:** June 24, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1003494782) · Data from the CMS NPPES public registry.