Dr. John Donald Mahan, MD
- Publications
- 182
- Clinical trials
- 3
- Hospital affiliations
- 1
- Industry payments
- $89,681
- Medical groups
- 2
- Practice address
- 700 Children's Drive, Columbus, OH 43205
- Practice phone
- Call (614) 722-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mahan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Donald Mahan is a pediatric nephrology physician in Columbus, Ohio
Dr. Mahan practices at Nationwide Children's Hospital in Columbus, Ohio, part of Nationwide Children's Hospital.
Dr. Mahan's NPI, 1023002417, was assigned on August 31, 2005. Dr. Mahan graduated from Drexel University College Of Medicine in 1977. Dr. Mahan holds Ohio license 35050467.
- NPI
- 1023002417NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486787181
- NPI enumeration date
- August 31, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (614) 722-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Donald Mahan practices at Nationwide Children's Hospital in Columbus, Ohio
Dr. Mahan's primary practice is Nationwide Children's Hospital, at 700 Children's Drive, Columbus, OH 43205 in Franklin County. The practice phone is (614) 722-2000.
- Nationwide Children's Hospital700 Children's Drive, Columbus, OH 43205 · Franklin CountyPhone(614) 722-2000
Source: Dmand AI Affiliation Data
Dr. John Donald Mahan is affiliated with 3 sites of care and 2 medical groups
Dr. Mahan's primary practice is Nationwide Children's Hospital in Columbus, Ohio, part of Nationwide Children's Hospital. The medical group on file is Nationwide Children's Hospital. Dmand AI also links Dr. Mahan to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Donald Mahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mahan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Nationwide Children's Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Nationwide Children's Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Donald Mahan is one of 57 pediatric nephrology physicians in Ohio
Pediatric nephrology is Dr. Mahan's primary specialty in the NPI Registry, under taxonomy code 2080P0210X. Dr. Mahan is board certified in pediatric nephrology by the American Board of Pediatrics. Dmand AI has Dr. Mahan's licenses on file in 2 states: Ohio and Minnesota.
Specialties and state licenses
- Pediatric nephrology, OhioPrimary
- Minnesota license
Pediatric nephrology physicians near Dr. Mahan
Counts of pediatric nephrology physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Donald Mahan's patients have a median age of 17
Across all payers, Dmand AI patient panel data puts Dr. Mahan's median patient age at 17, with 45% women.
Dr. Mahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 17
Patient panel by sex, all payers
- Women45%
- Men55%
Source: Dmand AI Patient Panel Data
How Dr. John Donald Mahan takes part in Medicare
Dr. Mahan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Dr. John Donald Mahan has 182 publications on record
Dmand AI links 182 papers to Dr. Mahan, published from 2003 to 2025. 2020 was the busiest year, with 14. The most frequent topics are Internship and Residency, Pediatrics and Clinical Competence. Dr. Mahan has published most often in Pediatr Nephrol. Dr. Mahan's most frequent co-authors are Alan Burton Schwartz, MD, Suzanne Michelle Reed and Debbie Sue Gipson, MD.
Dr. Mahan's papers by year, 2016 to 2025
Topics Dr. Mahan writes about most
- Internship and Residency
- Pediatrics
- Clinical Competence
- Curriculum
- Education, Medical, Graduate
- Burnout, Professional
- Nephrology
- Nephrotic Syndrome
Dr. Mahan's most frequent co-authors
- Alan Burton Schwartz, MD13 shared papers
- Suzanne Michelle Reed12 shared papers
- Debbie Sue Gipson, MD10 shared papers
Recent publications by Dr. Mahan
See who Dr. Mahan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mahan works with, so you can find a warm path to the right pediatric nephrology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Donald Mahan has worked on 3 clinical trials
Dmand AI links Dr. Mahan to 3 clinical trials, 2 of them phase 3 studies. Conditions studied include Dwarfism, Glomerulosclerosis, Focal Segmental and Hyperparathyroidism, Secondary.
Clinical trials with Dr. Mahan by phase
- NonePhase 1: no trials
- 1Phase 2: 1 trial
- 2Phase 3: 2 trials
- NonePhase 4: no trials
Conditions in Dr. Mahan's trials
- Dwarfism
- Glomerulosclerosis, Focal Segmental
- Hyperparathyroidism, Secondary
- Bone Diseases, Developmental
- Glomerulonephritis
Investigators on the most trials with Dr. Mahan
- Akhtar Ashfaq, MD1 shared trial
- Andrew S. Bomback, MD1 shared trial
- Fernando C. Fervenza, MD1 shared trial
Recent clinical trials with Dr. Mahan
Phase 3 Safety and Efficacy Study of CTAP101 Extended-release Capsules in Children With Secondary Hyperparathyroidism (opens in a new tab)
Three Times Weekly (TIW) Growth Hormone Therapy in Children on Hemodialysis (opens in a new tab)
Novel Therapies for Resistant FSGS (FONTII): Phase II Clinical Trial (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. John Donald Mahan received $89,681 in industry payments from 2016 to 2025
CMS Open Payments shows 80 general payments to Dr. Mahan from 13 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 59% of the total. Ultragenyx Pharmaceutical Inc. paid the most, $33,907.
General payments to Dr. Mahan by program year, 2016 to 2025
General payments to Dr. Mahan by kind, 2016 to 2025
- Consulting fees$53,11959%
- Speaker and faculty fees$28,38832%
- Travel and lodging$3,1514%
- Honoraria$2,9003%
- Other$2,0392%
Companies that paid Dr. Mahan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Donald Mahan has 15 awards and honors on record
Dmand AI lists 15 awards for Dr. Mahan, most recently Regional Top Doctor in 2020.
Awards and honors for Dr. Mahan
- 2020
- Regional Top Doctor
- 2019
- The Ohio State University College of Medicine Lifetime Educator Award
- 2018
- Nationwide Children’s Hospital Career Achievement Award
- 2014
- Career Achievement Award
- 2013
- Arthur Gold Humanism Society
- Parker J. Palmer Courage to Teach Award
Source: Dmand AI Professional Profile Data
Dr. John Donald Mahan graduated from Drexel University College Of Medicine
Dr. Mahan graduated from Drexel University College Of Medicine in 1977. Dr. Mahan is a member of AOA, AAP, ASN, American Society of Pediatric Nephrology, International Pediatric Nephrology Association and ISN.
- Medical school
- Board certified in pediatric nephrology
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. John Donald Mahan accepts plans from 7 insurance carriers
Dr. Mahan is in network with 7 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- HCSC
- KY State Medicaid
- Molina
- WV State Medicaid
Plan types Dr. Mahan accepts, by number of carriers
- PPO4
- HMO3
- Medicaid3
- POS3
- EPO2
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. John Donald Mahan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Donald Mahan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Donald Mahan's NPI number?
Dr. John Donald Mahan's NPI number is 1023002417. It was assigned on August 31, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John Donald Mahan?
Dr. John Donald Mahan is a pediatric nephrology physician in Columbus, Ohio. The primary specialty in the NPI Registry is Pediatric Nephrology Physician (taxonomy code 2080P0210X).
Where does Dr. John Donald Mahan practice?
Dr. Mahan practices at 700 Children's Drive, Columbus, OH 43205. Dr. Mahan's primary practice is Nationwide Children's Hospital in Columbus, Ohio, part of Nationwide Children's Hospital. Dmand AI also links Dr. Mahan to 2 group practices and clinics and 1 medical group.
What is Dr. John Donald Mahan's office phone number?
The practice phone on file for Dr. Mahan is (614) 722-2000.
What is Dr. John Donald Mahan's medical license number?
Dr. Mahan holds Ohio license 35050467, one of the licenses on file in 2 states.
Which states has Dr. John Donald Mahan been licensed in?
Dmand AI has state licenses on file for Dr. Mahan in Ohio (1984 to 2026) and Minnesota (1981 to 1983).
Which hospitals is Dr. John Donald Mahan affiliated with?
Dr. Mahan practices at Nationwide Children's Hospital in Columbus, Ohio.
What medical group is Dr. John Donald Mahan part of?
Dr. Mahan is linked to Nationwide Children's Hospital. Dmand AI links Dr. Mahan to 1 more medical group.
Does Dr. John Donald Mahan accept Medicare?
Yes. CMS lists Dr. Mahan as accepting Medicare assignment.
Is Dr. John Donald Mahan board certified?
Yes. Dr. Mahan is board certified in pediatric nephrology by the American Board of Pediatrics.
Show 6 more questionsShow fewer questions
Where did Dr. John Donald Mahan go to medical school?
Dr. Mahan graduated from Drexel University College Of Medicine in 1977.
Has Dr. John Donald Mahan received payments from drug or device companies?
CMS Open Payments shows $89,681 in general payments to Dr. Mahan from 13 companies from 2016 to 2025. The largest total came from Ultragenyx Pharmaceutical Inc.
How long has Dr. John Donald Mahan been practicing?
Dr. Mahan graduated from medical school in 1977, 49 years ago.
Does Dr. John Donald Mahan do research?
Dmand AI links 182 publications to Dr. Mahan, published from 2003 to 2025. Dr. Mahan has worked on 3 clinical trials.
Who does Dr. John Donald Mahan publish with?
Dr. Mahan's most frequent co-authors are Alan Burton Schwartz, MD (13 shared papers), Suzanne Michelle Reed (12 shared papers) and Debbie Sue Gipson, MD (10 shared papers).
What insurance does Dr. John Donald Mahan accept?
Dr. Mahan is in network with 7 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.
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