JOHN DONALD MAHAN MD
NPI 1023002417
Pediatrics - Pediatric Nephrology in Columbus, OH

Q: What is John Mahan's NPI number?

The NPI number for John Mahan is 1023002417. It was assigned to this individual provider in the NPPES registry on August 31, 2005.

Q: What is John Mahan's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Nephrology, with taxonomy code 2080P0210X.

Q: When was this NPI record last updated?

The NPPES record for John Mahan 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.

Active since August 31, 2005PECOS EnrolledAccepts Medicare Assignment

555 S 18TH ST, COLUMBUS, OH 43205(614) 722-4362(614) 722-6482 Get Directions Write a Review

NPPES record last updated: February 20, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About John Donald Mahan Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN DONALD MAHAN MD (NPI 1023002417) is an individual pediatric nephrology provider in Columbus, Ohio, licensed in Ohio (35050467) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (1977).

NPPES Registry Identity

NPI1023002417

Entity TypeIndividualMale

Primary Taxonomy2080P0210X

Provider Legal NameJOHN DONALD MAHANCredential: MD

Location Address555 S 18TH STColumbus, OH 43205-2654

Mailing Address700 Childrens DrColumbus, OH 43205-2664 · (614) 722-2000

Phone(614) 722-4362

Fax(614) 722-6482

Sole ProprietorNo

Medical School CMSOtherGraduated 1977

Enumeration DateAugust 31, 2005

Last NPPES UpdateFebruary 20, 2026

NPPES CertifiedFebruary 20, 2026

✔ NPI 1023002417 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code2080P0210X

License✔ Licensed in OH · 35050467

Definition

A pediatrician who deals with the normal and abnormal development and maturation of the kidney and urinary tract, the mechanisms by which the kidney can be damaged, the evaluation and treatment of renal diseases, fluid and electrolyte abnormalities, hypertension and renal replacement therapy.

555 S 18TH ST, Columbus, OH 43205

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Secondary Practice Locations 3

Location 15675 Venture DrDublin, OH 43017-2159 · Phone (614) 722-6200

Location 2740 Adair AveZanesville, OH 43701-2838 · Phone (614) 722-2000

Location 3536 S Trimble RdMansfield, OH 44906-3418 · Phone (614) 722-2000

Other Identifiers 2

Medicaid0562529OH

Other0549992OH · Cgs - Medicare

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource, UnitedHealthcare.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

John Donald Mahan 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.

PECOS PAC ID4486787181

PECOS Enrollment IDI20100802000623

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

LORIE D HAMIWKA MD

Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)