MAHMOUD KALLASH MD
NPI 1396935508
Pediatrics - Pediatric Nephrology in Columbus, OH
About Mahmoud Kallash Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAHMOUD KALLASH MD (NPI 1396935508) is an individual pediatric nephrology provider in Columbus, Ohio, licensed in Ohio (35-131055) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS, is affiliated with Nationwide Children's Hospital, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 4
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mahmoud Kallash 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Nationwide Children's Hospital
Childrens · Columbus, OHOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
COLUMBUS, OH 43205
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 Mahmoud Kallash's NPI number?
The NPI number for Mahmoud Kallash is 1396935508. It was assigned to this individual provider in the NPPES registry on July 25, 2007.
Where is Mahmoud Kallash located?
Mahmoud Kallash practices at 555 S 18th St, Columbus, OH 43205. The listed phone number is (614) 722-6200.
What is Mahmoud Kallash's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Nephrology, with taxonomy code 2080P0210X.
Is Mahmoud Kallash enrolled in Medicare?
Yes. Mahmoud Kallash 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.
What insurance does Mahmoud Kallash accept?
Health plans from CareSource and MedMutual list Mahmoud Kallash 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 Mahmoud Kallash affiliated with any hospitals?
According to CMS data, Mahmoud Kallash is affiliated with Nationwide Children's Hospital.
When was this NPI record last updated?
The NPPES record for Mahmoud Kallash was last updated on February 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Mahmoud Kallash, MD · NPI 1396935508
Pediatric Nephrology physician in Columbus, Ohio. Individual provider, active in the CMS NPPES registry since July 25, 2007.
## Identity
- **NPI:** 1396935508 (Entity type: Individual)
- **Enumerated:** July 25, 2007
- **Primary specialty:** Pediatrics - Pediatric Nephrology · taxonomy 2080P0210X
- **State license:** 35-131055 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 555 S 18TH ST, Columbus, OH 43205-2654
- **Phone:** (614) 722-6200
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** February 20, 2026
- **Other identifiers:** Medicaid 0218203 (OH); Other H589820 (OH)
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Source: [NPI Profile](https://npiprofile.com/npi/1396935508) · Data from the CMS NPPES public registry.