Summary

Dr. Mahan graduated from the University of Minnesota Medical School,Hahnemann University School of Medicine in 1977. He works in Columbus, OH and 1 other location and specializes in Nephrology and Pediatrics. Dr. Mahan is affiliated with Nationwide Childrens Hospital.

Quick Facts

  • accepting new patients
  • 2
  • 49 years of experience
  • speaks English
  • UNIVERSITY OF MINNESOTA MEDICAL SCHOOL
  • 2 specialties
  • 17 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 2 office locations
  • Male

Patients’ Perspective

  • Had a good bedside manner

Office Locations

Dr. John Mahan has 2 locations

Nationwide Childrens Hospital

700 Childrens DrColumbus, OH 43205

Nationwide Childrens Hospital Nephrology

555 S 18th St Fl 5Columbus, OH 43205
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

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Dr. John Mahan, MDDr. Sara M BodeRandi A BatesDr. Teresa Corinne Giacomazzi
NephrologyPediatricsNephrologyPediatrics
Accepts New Patients Accepts New Patients Accepts New Patients
49 Years of Experience 14 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish Speaks English
Columbus , OHColumbus , OHColumbus , OHColumbus , OH
Med School: UNIVERSITY OF MINNESOTA MEDICAL SCHOOL Med School: Ohio State University College Of Medicine & Public Health
Current Profile
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Insurance Plans Accepted by Dr. John Mahan

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. John Mahan has the following 2 specialties

Specialty Expertise

Dr. John Mahan has the following 17 areas of expertise

  • Chronic Renal Disease
  • Diabetic Kidney Disease (Diabetic Nephropathies)
  • Dialysis
  • End Stage Renal Disease (ESRD)
  • Growth Disorders
  • High Blood Pressure (Hypertension)
  • Kidney Biopsy
  • Kidney Dialysis (Renal Dialysis)
  • Kidney Disease
  • Kidney Disease (Glomerulonephritis)
  • Kidney Transplant (Renal Transplant)
  • Nephrotic Syndrome
  • Osteoporosis
  • Pediatrics
  • Peritoneal Dialysis
  • Proteinuria
  • Urinalysis

Certifications, License, & Education

49 Years Experience

Dr. John Mahan holds an active medical license in the state of Ohio.

Medical License

Medical Doctor with an active medical license in the state of Ohio that expired in 2026.

Education & Training

Medical School

Graduated from UNIVERSITY OF MINNESOTA MEDICAL SCHOOL in 1978 and Hahnemann University School Of Medicine in 1977.

NPI Number

Dr. Mahan's NPI number is 1023002417.

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Frequently Asked Questions

Which hospitals is Dr. John Mahan affiliated with?
Dr. John Mahan is affiliated with Nationwide Childrens Hospital.
Is Dr. John Mahan accepting new patients?
Dr. John Mahan is accepting new patients on Vitals. View Dr. John Mahan's profile on Vitals to make an appointment.
How can I make an appointment with Dr. John Mahan?
You can find contact information for Dr. John Mahan here on Vitals.
Does Dr. John Mahan accept virtual/telehealth appointments?
Dr. John Mahan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. John Mahan's office located?
Dr. John Mahan's office is located at 700 Childrens Dr, Columbus, OH, 43205.

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