John O'toole
Experienced in Feingold Syndrome

Dr. John O'toole

Nephrology
Cleveland Clinic
Cleveland Clinic Main Campus
9500 Euclid Avenue, 
Cleveland, OH 
On Staff At
34 Years of Experience

Experienced in Feingold Syndrome
Cleveland Clinic
Cleveland Clinic Main Campus
9500 Euclid Avenue, 
Cleveland, OH 
OverviewInsuranceLocationsSimilar Doctors

Overview

John O'toole is a Nephrologist in Cleveland, Ohio. Dr. O'toole has been practicing medicine for over 34 years and is rated as an Experienced provider by MediFind in the treatment of Feingold Syndrome. His top areas of expertise are Acute Kidney Failure, Necrosis, Chronic Kidney Disease, and End-Stage Renal Disease (ESRD).

Graduate Institution
Boston College, 1992.0
Residency
University of Iowa Hospitals and Clinics
Specialties
Nephrology
Licenses
Internal Medicine in OH
Board Certifications
American Board Of Internal Medicine, 2003
Fellowships
University of Michigan
Hospital Affiliations
Cleveland Clinic
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

Find your insurance
Find your insuranceClose

Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Ambetter
  • EPO
  • HMO
  • PPO
Anthem
  • EPO
  • HMO
  • POS
  • PPO
AultCare
  • PPO
CareSource
  • HMO
Cigna
  • EPO
  • HMO
  • PPO
CommuniCare Advantage
  • MEDICARE SNP
Devoted Health
  • MEDICARE MAPD
  • OTHER MEDICARE
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Kaiser Permanente
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER MEDICARE
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Oscar
  • EPO
  • HMO
  • PPO
Paramount
  • EPO
  • HMO
  • INDEMNITY
  • PPO
Primetime Health Plan
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER MEDICARE PART D
Provider Partners Health Plan
  • MEDICARE SNP
SummaCare
  • HMO
  • PPO
The Health Plan
  • HMO
  • MANAGED MEDICAID PLAN
  • OTHER MEDICARE PART D
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Univera Healthcare
  • INSURANCE PLAN
  • MEDICARE MAPD
UPMC
  • EPO
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 16 Less Insurance Carriers -

Locations

Cleveland Clinic Main Campus
9500 Euclid Avenue, Cleveland, OH 44195
Call: 216-444-2200
Similar Doctors
Advanced in Feingold Syndrome
Dr. Jonathan J. Taliercio
Nephrology
Advanced in Feingold Syndrome
Dr. Jonathan J. Taliercio
Nephrology

Cleveland Clinic

9500 Euclid Ave, 
Cleveland, OH 
 (0.1 miles away)
216-444-2200
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

Jonathan Taliercio is a Nephrologist in Cleveland, Ohio. Dr. Taliercio is rated as a Distinguished provider by MediFind in the treatment of Feingold Syndrome. His top areas of expertise are Glomerulonephritis, Acute Tubular Necrosis, Acute Kidney Failure, and Minimal Change Disease. Dr. Taliercio is currently accepting new patients.

Laura F. Provenzano
Advanced in Feingold Syndrome
Dr. Laura F. Provenzano
Nephrology
Advanced in Feingold Syndrome
Dr. Laura F. Provenzano
Nephrology

Cleveland Clinic Main Campus

2050 East 96th Street, 
Cleveland, OH 
 (0.9 miles away)
216-444-5600
Experience:
29+ years
Languages Spoken:
English, Spanish
See accepted insurances
Offers Telehealth

Laura Provenzano is a Nephrologist in Cleveland, Ohio. Dr. Provenzano has been practicing medicine for over 29 years and is rated as a Distinguished provider by MediFind in the treatment of Feingold Syndrome. Her top areas of expertise are Lupus Nephritis, Acute Kidney Failure, Glomerulonephritis, and Thin Basement Membrane Nephropathy.

Advanced in Feingold Syndrome
Dr. Umesh C. Yalavarthy
Nephrology
Advanced in Feingold Syndrome
Dr. Umesh C. Yalavarthy
Nephrology

Cleveland Kidney And Hypertension Consultants Inc

13170 Ravenna Rd, 
Chardon, OH 
 (22.1 miles away)
216-261-6263
Languages Spoken:
English, Hindi, Telugu
See accepted insurances
Accepting New Patients

Umesh Yalavarthy is a Nephrologist in Chardon, Ohio. Dr. Yalavarthy is rated as a Distinguished provider by MediFind in the treatment of Feingold Syndrome. His top areas of expertise are Acute Kidney Failure, Renovascular Hypertension, Low Sodium Level, and Necrosis. Dr. Yalavarthy is currently accepting new patients.

VIEW MORE FEINGOLD SYNDROME DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. O'toole's expertise for a condition
ConditionClose
      • Advanced
      • Acute Kidney Failure
        Dr. O'toole is
        Advanced
        . Learn about Acute Kidney Failure.
        See more Acute Kidney Failure experts
      • Necrosis
        Dr. O'toole is
        Advanced
        . Learn about Necrosis.
        See more Necrosis experts
      • Experienced
      • Acute Arterial Occlusion of Kidney
        Dr. O'toole is
        Experienced
        . Learn about Acute Arterial Occlusion of Kidney.
        See more Acute Arterial Occlusion of Kidney experts
      • Acute Tubular Necrosis
        Dr. O'toole is
        Experienced
        . Learn about Acute Tubular Necrosis.
        See more Acute Tubular Necrosis experts
      • Chronic Kidney Disease
        Dr. O'toole is
        Experienced
        . Learn about Chronic Kidney Disease.
        See more Chronic Kidney Disease experts
      • Congenital Nephrotic Syndrome
        Dr. O'toole is
        Experienced
        . Learn about Congenital Nephrotic Syndrome.
        See more Congenital Nephrotic Syndrome experts
      • End-Stage Renal Disease (ESRD)
        Dr. O'toole is
        Experienced
        . Learn about End-Stage Renal Disease (ESRD).
        See more End-Stage Renal Disease (ESRD) experts
      • Familial Hypocalciuric Hypercalcemia Type 1
        Dr. O'toole is
        Experienced
        . Learn about Familial Hypocalciuric Hypercalcemia Type 1.
        See more Familial Hypocalciuric Hypercalcemia Type 1 experts
      View All 16 Experienced Conditions
      Want to save this doctor for later?
      Sign Up
      Is this your doctor?
      Find A Second Opinion
      Not sure about your diagnosis?
      Check Your Symptoms
       
       
       
       
      Learn about our expert tiers
      Learn More
      Are you the provider on this profile?
      Claim Profile
      For Patients
      • Our Story
      • How MediFind Works
      • Conditions A-Z
      • Doctor Directory
      • Symptoms Directory
      • Procedures Directory
      • Treatment Directory
      • Drug Directory
      • Infusion Center Finder
      • FAQ
      • Contact Us
      For Providers and Practices
      • Claim Your Profile
      • Newsroom
      Business Solutions
      • Provider
      • Network Solutions
      Additional Resources
      • Consumer Health Data Privacy Policy
      • Privacy Policy
      • Terms of Use
      • Advertising Policy
      • Content Policy
      Subscribe to our newsletter

      Sign up to stay informed about MediFind and get wellness sent your way.

      Close

        By subscribing, I agree to MediFind's Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.

        Bullet PinMediFind
        Follow us on
        This information is not intended as a substitute for informed medical advice. You should work with a licensed professional to diagnose and treat health conditions. We let the data speak for itself, MediFind does not endorse any healthcare providers.
        © 2026 All Rights Reserved

        Request an Appointment

        If you are experiencing a medical emergency, call 9-1-1.

        MediFind will contact the provider for your appointment request. You’ll receive status updates by email. Your provider or MediFind will reach out to you directly by phone or email to schedule your appointment or request additional information.

        Patient Details

        This information is for the patient who will be seen at the appointment.

          Close

          Returning patient? Use your address on file with the provider.

          Insurance Details

          Please provide information of the primary insurance holder as the practice may require this information to schedule.

          Insurance Provider *
          Insurance ProviderClose

          Appointments Details

          Let’s get more information about your appointment.

                  0 / 1000
                  0 / 1000
                  By pressing the Submit button you are agreeing to MediFind’s Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.