Dr. John O. Ranker
- Gender: Male
- Experience: 18 years
- Graduated from: University Of Cincinnati College Of Medicine
- Graduation year: 2003
- Sole propriator: No
- NPI: 1508069444
Dr. John O. Ranker MD
Nephrologist
He is located at 1103 Village Square Drive Ste 205 in Perrysburg, OH 43551. Can help patients with the following: Chronic Obstructive Pulmonary Disease (COPD), Diarrhea, Edema, Hyperkalemia, Low Blood Pressure, Osteoporosis. His National Provider Identifier (NPI) number is 1508069444. Appointment can be made via the phone number (419) 874-3246. He is affiliated with 4 practices and 5 hospitals.
Conditions treated
Dr. John O. Ranker, being an nephrologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. John O. Ranker.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Blood in Urine
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Gout
- Headache
- Heart Disease
- Hemolytic Uremic Syndrome (HUS)
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hydronephrosis
- Hypercalcemia
- Hyperkalemia
- Hyperlipidemia
- Hyperparathyroidism
- Hyponatremia
- Influenza
- Inguinal Hernia
- Kidney Cancer
- Kidney Failure
- Kidney Infection
- Kidney Stones
- Low Blood Pressure
- Low Potassium
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Polycystic Kidney Disease (PKD)
- Prescription Refill
- Rhabdomyolysis
- Urethritis
- Urinary Tract Infection (UTI)
- Vitamin D Deficiency
Procedures Performed by Dr. John O. Ranker
Insurances Accepted by Dr. John O. Ranker
- Medicare
Medicare Enrollment
Dr. John O. Ranker is enrolled to bill Medicare as a Practitioner - Nephrology (also registered under: Practitioner - Internal Medicine) .
Bills through: Toledo Clinic Incorporated
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.
Studies
UNIVERSITY OF CINCINNATI COLLEGE OF MEDICINE
Graduated in 2003Additional Specialities
- Internist
Affiliated practices
Affiliated hospitals
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Questions & Answers
Does Dr. John O. Ranker accept patients with Medicare?
Yes, Dr. John O. Ranker accepts patients with Medicare.
Where can you meet with Dr. John O. Ranker?
Dr. John O. Ranker's office is located at 1103 Village Square Drive Ste 205 in Perrysburg, OH 43551.
Does Dr. John O. Ranker have affiliation with practices?
Dr. John O. Ranker is affiliated with Toledo Clinic Incorporated. For the full list of practices see this list.
What conditions does Dr. John O. Ranker treat?
Dr. John O. Ranker provides treatment for Chronic Obstructive Pulmonary Disease (COPD), Diarrhea, Edema, Hyperkalemia, Low Blood Pressure, Osteoporosis. For the full list see this list.
Has Dr. John O. Ranker affiliation with hospitals?
Dr. John O. Ranker is affiliated with MERCY ST ANNE HOSPITAL. For the full list of hospitals see this list.