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- 2409 Cherry St, Ste 100, Toledo, OH 43608
About Dr. O'connor
Mark O'Connor, MD practices clinical cardiac electrophysiology in Toledo, OH. Mark is a 1986 graduate of University of Michigan Medical School. According to Medicare claims data, Mark cared for 1,842 Medicare patients across 2,851 services. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and programming of dual lead pacemaker system. The provider's National Provider Identifier (NPI) is 1245232800.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (419) 251-3700
- Email not available
Practice Locations
2409 CHERRY ST STE 100
Toledo, OH 43608
Conditions Commonly Evaluated or Treated
Within Clinical Cardiac Electrophysiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Abnormal heart rhythms
Autonomic disorders
Conduction disorders
Dangerous heart rhythms
Device complications
Device issues
Fainting & reflex disorders
Genetic heart conditions
- Arrhythmogenic Right Ventricular Dysplasia
- Brugada Syndrome
- Catecholaminergic Polymorphic Ventricular Tachycardia
- Long QT syndrome
Heart failure and muscle
Heart muscle conditions
Heart rhythm disorders
Inherited rhythm disorders
Structural heart conditions
Symptoms
- Dizziness and Lightheadedness
- Fainting and syncope
- Heart palpitations
- Premature ventricular contractions
- Slow heart rate (bradycardia)
Procedures & services
Most searched procedures
- AFib ablation
- Angioplasty and stenting
- Cardiac catheterization
- Pacemaker implantation
- Watchman procedure
Advanced therapies
Catheter ablation
- AV Node Ablation
- Cardioneuroablation
- Cryoablation
- Epicardial Catheter Ablation
- Heart Flutter Ablation
- Pulsed Field Ablation
- PVC Ablation
- Ventricular Tachycardia Ablation
Device care
Device management
Device placement
Device procedures
- Cardiac resynchronization therapy device placement
- Conduction System Pacing
- Implantable cardioverter-defibrillator placement
- Leadless Pacemaker Placement
- Pacemaker Battery Replacement
- Pacemaker Lead Removal
- Subcutaneous Defibrillator Placement
Diagnostic imaging
Diagnostic monitoring
Diagnostic testing
Diagnostic tests
- 30-Day Cardiac Event Monitor
- Electrophysiology study
- Genetic Arrhythmia Testing
- Heart monitor
- Implantable Loop Recorder (Cardiac Monitor Implant)
- Tilt Table Test
- Wearable Heart Patch Monitor
External devices
Heart rhythm treatments
Medication management
Minor device procedures
Rhythm restoration
Stroke prevention
Procedures Most Often Billed to Medicare
2,851 services · 1,842 patients · 23 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of pacemaker and upper and lower heart chamber electrode | Procedure | 33208 |
12 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Insertion of implantable defibrillator system | Procedure | 33249 |
11 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
853 | More than most peers in Clinical Cardiac Electrophysiology |
| Programming of dual lead pacemaker system | Treatment | 93280 |
206 | More often than most peers in Clinical Cardiac Electrophysiology |
| Evaluation of single, dual, or multiple lead implantable defibrillator system | Treatment | 93289 |
119 | More than most peers in Clinical Cardiac Electrophysiology |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
109 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Programming of single lead implantable defibrillator system | Treatment | 93282 |
75 | More than most peers in Clinical Cardiac Electrophysiology |
| Programming of multiple lead implantable defibrillator system | Treatment | 93284 |
73 | More often than most peers in Clinical Cardiac Electrophysiology |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | Treatment | 93015 |
63 | As often as other peers in Clinical Cardiac Electrophysiology |
| Evaluation of cardiac rhythm monitor system | Treatment | 93291 |
35 | As often as other peers in Clinical Cardiac Electrophysiology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Class of 1986 at University of Michigan Medical School 8
Providers who graduated from the same medical school in the same year.
More connections — 3 related providers in 1 group
Also performs Insertion of pacemaker and upper and lower heart chamber electrode 3
Providers in OH who bill this service to Medicare most often.
Common questions
What is Dr. O'Connor's specialty?
Dr. O'Connor is a clinical cardiac electrophysiology in Toledo, OH. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. O'Connor?
Dr. O'Connor is listed at 2409 Cherry St Ste 100, Toledo, OH 43608. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. O'Connor?
The number on file is (419) 251-3700. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. O'Connor's NPI number?
Dr. O'Connor's National Provider Identifier is 1245232800. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. O'Connor's medical education?
Dr. O'Connor attended University of Michigan Medical School, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. O'Connor been practicing?
Dr. O'Connor has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What is Dr. O'Connor known for?
According to Medicare billing data, Dr. O'Connor performs procedures including insertion of pacemaker and upper and lower heart chamber electrode and insertion of implantable defibrillator system; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and programming of dual lead pacemaker system, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. O'Connor confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Connor. If this is you, claiming it is free.
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