Dr. Cornelius J. Osullivan
Dentist
He is located at 13616 Madison Avenue in Lakewood, OH 44107. Can help patients with the following: Bleeding Gums, Dental Implants, Dental Malocclusion, Gum Disease / Gingivitis, Oral Cancer Examination, Teeth Grinding. His National Provider Identifier (NPI) number is 1467076034. Appointment can be made via the phone number (216) 221-1438.
Conditions treated
Dr. Cornelius Joseph Osullivan, being an dentist, 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. Cornelius J. Osullivan.
- Bleeding Gums
- Cosmetic Dentistry
- Dental Bridges
- Dental Crowns and Caps
- Dental Emergency
- Dental Exam and Cleaning
- Dental Implants
- Dental Malocclusion
- Dentin Hypersensitivity
- Dentures
- Gum Disease / Gingivitis
- Invisalign
- Laser
- Oral Cancer Examination
- Pericoronitis
- Teeth Grinding
- Teeth Whitening
- Veneers
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Cornelius J. Osullivan as in-network for the following 2026 plans.
Health plans
Ambetter from Buckeye Health Plan
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 16 plans from Ambetter from Buckeye Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Choice Bronze HSA | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Choice Bronze HSA + Vision + Adult Dental | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Clear Gold | HMO · Gold | Preferred | Not accepting new patients |
| Clear Gold + Vision + Adult Dental | HMO · Gold | Preferred | Not accepting new patients |
| Complete Gold | HMO · Gold | Preferred | Not accepting new patients |
| Complete Gold + Vision + Adult Dental | HMO · Gold | Preferred | Not accepting new patients |
| Complete Silver | HMO · Silver | Preferred | Not accepting new patients |
| Complete Silver + Vision + Adult Dental | HMO · Silver | Preferred | Not accepting new patients |
| Everyday Bronze | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Everyday Bronze + Vision + Adult Dental | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Standard Expanded Bronze | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Standard Expanded Bronze + Vision + Adult Dental | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Standard Gold | HMO · Gold | Preferred | Not accepting new patients |
| Standard Gold + Vision + Adult Dental | HMO · Gold | Preferred | Not accepting new patients |
| Standard Silver | HMO · Silver | Preferred | Not accepting new patients |
| Standard Silver + Vision + Adult Dental | HMO · Silver | Preferred | Not accepting new patients |
Oscar Health Insurance
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 16 plans from Oscar Health Insurance
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic 4700 | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Bronze Classic Standard | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Bronze Elite + PCP Saver Plus | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Bronze Simple Breathe Easy with Enhanced COPD Benefits | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Bronze Simple Chronic Care CKM | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Bronze Simple Diabetes | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Gold Classic | HMO · Gold | Preferred | Not accepting new patients |
| Gold Classic Standard | HMO · Gold | Preferred | Not accepting new patients |
| Gold Elite Saver Plus | HMO · Gold | Preferred | Not accepting new patients |
| Silver Classic Standard | HMO · Silver | Preferred | Not accepting new patients |
| Silver Elite Saver Plus | HMO · Silver | Preferred | Not accepting new patients |
| Silver Simple Breathe Easy with Enhanced COPD Benefits | HMO · Silver | Preferred | Not accepting new patients |
| Silver Simple Chronic Care CKM | HMO · Silver | Preferred | Not accepting new patients |
| Silver Simple Diabetes | HMO · Silver | Preferred | Not accepting new patients |
| Silver Simple PCP Saver | HMO · Silver | Preferred | Not accepting new patients |
| Silver Simple Women's Health with Menopause Benefits | HMO · Silver | Preferred | Not accepting new patients |
Oscar Insurance Corporation of Ohio
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 16 plans from Oscar Insurance Corporation of Ohio
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic PCP Saver | Cleveland Clinic | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Bronze Classic Standard | Cleveland Clinic | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Bronze Simple Breathe Easy with Enhanced COPD Benefits | Cleveland Clinic | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Bronze Simple Chronic Care CKM | Cleveland Clinic | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Bronze Simple Diabetes | Cleveland Clinic | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Bronze Simple HSA | Cleveland Clinic | HMO · Expanded Bronze | Preferred | Not accepting new patients |
| Gold Classic Standard | Cleveland Clinic | HMO · Gold | Preferred | Not accepting new patients |
| Gold Elite Saver Plus | Cleveland Clinic | HMO · Gold | Preferred | Not accepting new patients |
| Gold Elite | Cleveland Clinic | HMO · Gold | Preferred | Not accepting new patients |
| Silver Classic Standard | Cleveland Clinic | HMO · Silver | Preferred | Not accepting new patients |
| Silver Elite Saver Plus | Cleveland Clinic | HMO · Silver | Preferred | Not accepting new patients |
| Silver Simple Breathe Easy with Enhanced COPD Benefits | Cleveland Clinic | HMO · Silver | Preferred | Not accepting new patients |
| Silver Simple Chronic Care CKM | Cleveland Clinic | HMO · Silver | Preferred | Not accepting new patients |
| Silver Simple Diabetes | Cleveland Clinic | HMO · Silver | Preferred | Not accepting new patients |
| Silver Simple PCP Saver | Cleveland Clinic | HMO · Silver | Preferred | Not accepting new patients |
| Silver Simple Women's Health with Menopause Benefits | Cleveland Clinic | HMO · Silver | Preferred | Not accepting new patients |
Dental plans
BEST Life
Network data as of Sep 8, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| BEST Life Essential Basic Dental Plan | PPO · Low | In Network | Accepting new patients |
| BEST Life Essential Value Dental Plan | PPO · Low | In Network | Accepting new patients |
| BEST Life Preferred Dental Plan | PPO · High | In Network | Accepting new patients |
| BEST Life Superior Dental Plan | PPO · High | In Network | Accepting new patients |
Delta Dental of Ohio
Network data as of Sep 12, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Delta Dental Individual Pediatric-Only PPO, EHB Certified | PPO · High | Delta Dental PPO and Delta Dental Premier | Accepting new patients at some locations |
| Delta Dental Individual Pediatric-Only PPO, EHB Certified | PPO · Low | Delta Dental PPO and Delta Dental Premier | Accepting new patients at some locations |
| Delta Dental Individual PPO Bronze Plan, EHB Certified | PPO · Low | Delta Dental PPO and Delta Dental Premier | Accepting new patients at some locations |
| Delta Dental Individual PPO Gold Plan, EHB Certified | PPO · High | Delta Dental PPO and Delta Dental Premier | Accepting new patients at some locations |
| Delta Dental Individual PPO Silver Plan, EHB Certified | PPO · High | Delta Dental PPO and Delta Dental Premier | Accepting new patients at some locations |
EMI Health
Network data as of Sep 16, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| EMI Health Advantage Co-Pay | PPO · Low | Preferred | Accepting new patients |
| EMI Health Advantage PPO | PPO · Low | Preferred | Accepting new patients |
| EMI Health Premier PPO (High) | PPO · High | Preferred | Accepting new patients |
| EMI Health Premier PPO (Low) | PPO · Low | Preferred | Accepting new patients |
HRI Dental & Vision
Network data as of Sep 16, 2025, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| HRI Essential Plus Plan | PPO · Low | Participating | Accepting new patients |
| HRI Preventive Family Plan | PPO · Low | Participating | Accepting new patients |
| HRI Total Care Plan | PPO · Low | Participating | Accepting new patients |
Humana
Network data as of Sep 13, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Humana Dental Smart Choice - Low | PPO · Low | Preferred | Accepting new patients |
TRUASSURE INSURANCE COMPANY
Network data as of Sep 11, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| TruAssure Basic Adult or Child Dental Plan | PPO · Low | Preferred | Accepting new patients |
| TruAssure Preferred Adult or Child Dental Plan | PPO · High | Preferred | Accepting new patients |
| TruAssure Preventive Dental Plan | PPO · Low | Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Cornelius J. Osullivan is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
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Questions & Answers
Does Dr. Cornelius Joseph Osullivan accept insurance?
Dr. Cornelius Joseph Osullivan is listed in-network for 68 ACA Marketplace (Obamacare/HealthCare.gov) plans from Ambetter from Buckeye Health Plan, Oscar Health Insurance, Oscar Insurance Corporation of Ohio, BEST Life, Delta Dental of Ohio, EMI Health, HRI Dental & Vision, Humana, TRUASSURE INSURANCE COMPANY. See the Marketplace plans section for details.
What conditions does Dr. Cornelius Joseph Osullivan treat?
Dr. Cornelius Joseph Osullivan provides treatment for Bleeding Gums, Dental Implants, Dental Malocclusion, Gum Disease / Gingivitis, Oral Cancer Examination, Teeth Grinding. For the full list see this list.
Where can you meet with Dr. Cornelius Joseph Osullivan?
Dr. Cornelius Joseph Osullivan's office is located at 13616 Madison Avenue in Lakewood, OH 44107.