Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John O Ranker, MD

Individual provider Internal Medicine Physician · NPI 1508069444

John O Ranker, MD is a Nephrology in Perrysburg, Ohio. Graduated from University of Cincinnati College of Medicine in 2003, 23 years ago. Practices with Toledo Clinic Incorporated, a 207-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
23
Trained at
University of Cincinnati College of Medicine
Licensed in
OH
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1103 Village Square Dr Ste 205
Perrysburg, OH 43551-1783
Phone: (419) 874-3246
Fax: (419) 874-8475
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 57009242 (OH)

Record details

NPI number1508069444
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 7, 2007
Last updated in NPPESJuly 13, 2012
Mailing address1103 Village Square Dr, Ste 205, Perrysburg, OH 43551-1783

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEPHROLOGY
Medical schoolUNIVERSITY OF CINCINNATI COLLEGE OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice Toledo Clinic Incorporated — 207 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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