Mahmoud Kallash, MD
NPI 1396935508 · Pediatric Nephrology Physician · Columbus, OH
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mahmoud Kallash, MD is a Pediatric Nephrology Physician provider in Columbus, OH (NPI 1396935508).
Provider details
- NPI number
- 1396935508
- Entity type
- Individual
- Primary specialty
- Pediatric Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35-131055 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
5 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (4)
- 1 Childrens PlzDayton, OH 45404-1873Phone: (937) 641-4000Fax: (937) 641-4500
- 5675 Venture DrDublin, OH 43017-2159Phone: (614) 722-6200
- 536 S Trimble RdMansfield, OH 44906-3418Phone: (614) 722-2000
- 740 Adair AveZanesville, OH 43701-2838Phone: (614) 722-2000
Registry dates
- Enumerated
- 2007-07-25
- Last updated
- 2026-02-20
- Certified
- 2026-02-20
Frequently asked questions
- What is Mahmoud Kallash's NPI number?
- Mahmoud Kallash's National Provider Identifier (NPI) is 1396935508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mahmoud Kallash's specialty?
- Mahmoud Kallash is listed in the NPPES registry with a primary specialty of Pediatric Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Mahmoud Kallash located?
- Mahmoud Kallash's practice location on file with NPPES is 555 S 18th St, Columbus, OH 43205-2654.
- What is Mahmoud Kallash's phone number?
- The practice phone number listed in the NPPES registry for Mahmoud Kallash is (614) 722-6200.
- Does Mahmoud Kallash accept Medicare?
- Mahmoud Kallash is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mahmoud Kallash's NPI active?
- Yes — Mahmoud Kallash's NPI (1396935508) is active in the NPPES registry as of the last update on 2026-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.