John Donald Mahan, MD
Pediatric Nephrology Physician · Columbus, OH
John Donald Mahan, MD is a pediatric nephrology physician with a practice address in Columbus, Ohio, and NPI 1023002417, issued on Aug 31, 2005. Check the license (Ohio 35050467, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- John Donald Mahan
- Credential
- MD
- Primary taxonomy
- Pediatric Nephrology Physician 2080P0210X
- License number
- 35050467 OH
Self-reported in NPPES; status is on the state search - Practice location
- 555 S 18TH St, Columbus, OH 43205
- Phone
- (614) 722-4362
- Enumerated
- Aug 31, 2005
- Record last updated
- Feb 20, 2026
- Fax
- (614) 722-6482
- Medicaid ID
- 0562529 OH
- Medicare enrollment
- Enrolled (PECOS I20100802000623); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatric nephrology physician records → All 54 in Ohio → Look up another NPI →
Also registered at 555 S 18TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Dara Albert, D.O.Neurology with Special Qualifications in Child Neurology Physician1174811129
- Jennifer Aldrink, MDPediatric Surgery Physician1952591919
- Fatema Ali, M.DPediatric Gastroenterology Physician1508420894
- Seth Alpert, MDPediatric Urology Physician1457447336
Verify John Donald Mahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35050467Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $13,996.92
14 payments; by number, the most common kind was food and beverage; the largest payer was Kyowa Kirin, Inc. The 297 providers of this specialty with any payment received $3,704.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Pediatric Academic Association, Inc.Columbus, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Donald Mahan among 54 pediatric nephrology physician records in Ohio
John Donald Mahan, MD is one of 54 pediatric nephrology physician records with a practice address in Ohio. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1977 · median 2003 among the 35 with a school on file
- Record last updated2026 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0210X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Nephrology Physician providers in Ohio
There are 54 pediatric nephrology physician records in Ohio.
All 54 in Ohio → Every provider in Columbus → Pediatric Nephrology Physician nationwide →
The 8 pediatric nephrology physician records with the nearest ZIP codes
- Michael Becknell, MD, PHDColumbus, OH 432051790946150
- Orville Bignall, MDColumbus, OH 432051578853636
- Gabriel Cara Fuentes, MDColumbus, OH 432051194080242
- Mahmoud Kallash, MDColumbus, OH 432051396935508
- Amy Kogon, MDColumbus, OH 432051508035924
- Kirsten Kusumi, M.D.Columbus, OH 432051205078763
- Nina Mann, MDColumbus, OH 432051871835967
- Mark Mentser, MDColumbus, OH 432051245224633
Common questions
What is John Donald Mahan, MD's NPI number?
John Donald Mahan, MD's National Provider Identifier (NPI) is 1023002417, issued on Aug 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Donald Mahan, MD located?
The NPPES record lists a practice address at 555 S 18TH St, Columbus, OH, 43205. Phone: (614) 722-4362. Providers update this record themselves, so call before visiting.
How can I verify John Donald Mahan, MD's license?
NPPES lists Ohio license number 35050467, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.