Physician Profile
Timothy R. Larsen, D.O.
Unclaimed ProfileAbout Dr. Larsen
Timothy R. Larsen, D.O. is a healthcare provider in Chicago, IL specializing in clinical cardiac electrophysiology. Timothy trained at Michigan State University College of Osteopathic Medicine, graduating in 2011. Timothy is also listed as specializing in cardiovascular disease. Medicare claims data shows Timothy provided 4,245 services to 3,433 patients. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days, and evaluation of cardiac rhythm monitor system, remote up to 30 days.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (312) 942-5020
- Email not available
Practice Locations
1725 W HARRISON ST STE 1159
Chicago, IL 60612
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
- Atrial Tachycardia
- Premature atrial contractions
Autonomic disorders
Conduction disorders
- Bundle Branch Block
- Heart block
- Junctional Rhythm
- Tachy-Brady Syndrome
Dangerous heart rhythms
- Cardiac Arrest
- Ventricular Fibrillation
- Ventricular tachycardia
Device complications
Device issues
- Frequent Defibrillator Shocks
- Pacemaker Syndrome
Fainting & reflex disorders
- Carotid Sinus Hypersensitivity
Genetic heart conditions
- Arrhythmogenic Right Ventricular Dysplasia
- Brugada Syndrome
- Catecholaminergic Polymorphic Ventricular Tachycardia
- Long QT syndrome
Heart failure and muscle
- Weak Heart Muscle
Heart muscle conditions
- Cardiac Sarcoidosis
- Hypertrophic cardiomyopathy
Heart rhythm disorders
- Inappropriate Sinus Tachycardia
- Supraventricular tachycardia
- Wolff-Parkinson-White Syndrome
Inherited rhythm disorders
- Short QT Syndrome
Structural heart conditions
- Arrhythmic Mitral Valve Prolapse
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
- Stereotactic Cardiac Radioablation (STAR)
Catheter ablation
- AV Node Ablation
- Cardioneuroablation
- Cryoablation
- Epicardial Catheter Ablation
- Heart Flutter Ablation
- Pulsed Field Ablation
- PVC Ablation
- Ventricular Tachycardia Ablation
Device care
- Pacemaker Check
- Remote Device Monitoring
Device management
- Pacemaker or Defibrillator Reprogramming
Device placement
- Extravascular Defibrillator Placement (EV-ICD)
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
- Cardiac MRI for Heart Scarring
- Transesophageal echocardiogram
Diagnostic monitoring
- 24-Hour Holter Monitor
- Exercise Stress Test for Arrhythmia
Diagnostic testing
- Brugada Drug Challenge Test
- Carotid Sinus Massage
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
- LifeVest Fitting
Heart rhythm treatments
- AED Shock or Defibrillation
Medication management
- Heart Rhythm Medication Management
Minor device procedures
- Loop Recorder Removal
Rhythm restoration
Stroke prevention
Procedures Most Often Billed to Medicare
4,245 services · 3,433 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of pacemaker and upper and lower heart chamber electrode | Procedure | 33208 |
20 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
1,769 |
| Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | Treatment | 93295 |
356 |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | Treatment | 93298 |
317 |
| Heart rhythm review and interpretation of continous external ekg over 8-15 days | Treatment | 93248 |
291 |
| Programming of dual lead pacemaker system | Treatment | 93280 |
158 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
156 |
| Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days | Treatment | 93244 |
80 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | Treatment | 93294 |
67 |
| Programming of multiple lead implantable defibrillator system | Treatment | 93284 |
38 |
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 5
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.
Other clinical cardiac electrophysiology specialists in Chicago 8
Same specialty, same city.
More connections — 21 related providers in 3 groups
Trained at Michigan State University College of Osteopathic Medicine 5
Other providers in the same specialty who trained at the same institution.
Class of 2011 at Michigan State University College of Osteopathic Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of pacemaker and upper and lower heart chamber electrode 8
Providers in IL who bill this service to Medicare most often.
Common questions
What does Timothy R. Larsen specialize in?
Timothy R. Larsen is a clinical cardiac electrophysiology in Chicago, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Timothy R. Larsen located?
Timothy R. Larsen is listed at 1725 W Harrison St Ste 1159, Chicago, IL 60612. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Timothy R. Larsen's phone number?
The number on file is (312) 942-5020. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Timothy R. Larsen?
Timothy R. Larsen's National Provider Identifier is 1477845337. 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
Where did Timothy R. Larsen train?
Timothy R. Larsen attended Michigan State University College of Osteopathic Medicine, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Timothy R. Larsen have?
Timothy R. Larsen has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What does Timothy R. Larsen do most often?
According to Medicare billing data, Timothy R. Larsen performs procedures including insertion of pacemaker and upper and lower heart chamber electrode; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Timothy R. Larsen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Timothy R. Larsen. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.