Overview
John Ondrejka is a primary care provider, practicing in Internal Medicine in Mentor, Ohio. Dr. Ondrejka is rated as an Experienced provider by MediFind in the treatment of Shingles. His top areas of expertise are Tracheitis, Empyema, Shingles, and Chronic Cough.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- HMO
- PPO
- MEDICARE MAPD
- OTHER COMMERCIAL
- EPO
- HMO
- POS
- PPO
Locations
Twinsburg Family Health And Surgery Center
Natalie Demyan is a primary care provider, practicing in Internal Medicine in Twinsburg, Ohio. Dr. Demyan has been practicing medicine for over 35 years and is rated as an Advanced provider by MediFind in the treatment of Shingles. Her top areas of expertise are Shingles, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypertension.
Triad Health Services LLC
John Koval is a primary care provider, practicing in Internal Medicine in Youngstown, Ohio. Dr. Koval is rated as a Distinguished provider by MediFind in the treatment of Shingles. His top areas of expertise are High Cholesterol, Hyperlipoproteinemia Type 5, Familial Lipoprotein Lipase Deficiency, Endoscopy, and Ureteroscopy. Dr. Koval is currently accepting new patients.
Avon - Richard E. Jacobs Health Center
Maria Neri is a primary care provider, practicing in Internal Medicine in Avon, Ohio. Dr. Neri has been practicing medicine for over 47 years and is rated as an Advanced provider by MediFind in the treatment of Shingles. Her top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Lung Metastases, and Endoscopy.
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
- Experienced
- Chronic CoughDr. Ondrejka isExperienced. Learn about Chronic Cough.
- EmpyemaDr. Ondrejka isExperienced. Learn about Empyema.
- LymphangitisDr. Ondrejka isExperienced. Learn about Lymphangitis.
- ShinglesDr. Ondrejka isExperienced. Learn about Shingles.
- SinusitisDr. Ondrejka isExperienced. Learn about Sinusitis.
- TracheitisDr. Ondrejka isExperienced. Learn about Tracheitis.

