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- 5841 S Maryland Ave, Chicago, IL 60637
About Dr. Sauer
Based in Chicago, IL, William Sauer, MD is listed in the NPI registry under cardiac electrophysiology. William is also listed as specializing in clinical cardiac electrophysiology and cardiovascular disease. Medicare claims data shows William provided 2,400 services to 1,762 patients. The services billed most often include heart rhythm review and interpretation of continous external ekg over 8-15 days, evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days, and evaluation of cardiac rhythm monitor system, remote up to 30 days. NPI 1609827583 identifies this record in the national registry.
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
- (888) 824-0200
- Email not available
Practice Locations
5841 S MARYLAND AVE
Chicago, IL 60637
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
2,400 services · 1,762 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of heart rhythm monitor under skin | Procedure | 33285 |
14 | Less often than most peers in Cardiac Electrophysiology |
| Heart rhythm review and interpretation of continous external ekg over 8-15 days | Treatment | 93248 |
594 | More than most peers in Cardiac Electrophysiology |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | Treatment | 93294 |
313 | As often as other peers in Cardiac Electrophysiology |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | Treatment | 93298 |
307 | More often than most peers in Cardiac Electrophysiology |
| Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days | Treatment | 93244 |
236 | More than most peers in Cardiac Electrophysiology |
| Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | Treatment | 93295 |
151 | As often as other peers in Cardiac Electrophysiology |
| Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional | Treatment | 93228 |
110 | More often than most peers in Cardiac Electrophysiology |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
110 | Less often than most peers in Cardiac Electrophysiology |
| Electrocardiogram (ecg) 2-day continuous with review by health care professional | Treatment | 93227 |
32 | As often as other peers in Cardiac Electrophysiology |
| Insertion of catheters and destruction of tissue to treat abnormal heart rhythm | Treatment | 93655 |
31 | As often as other peers in 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.
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 cardiac electrophysiology specialists in Chicago 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1999 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of heart rhythm monitor under skin 7
Providers in IL who bill this service to Medicare most often.
Common questions
What does Dr. Sauer specialize in?
Dr. Sauer is a cardiac electrophysiology in Chicago, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Sauer located?
Dr. Sauer is listed at 5841 S Maryland Ave, Chicago, IL 60637. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Sauer's phone number?
The number on file is (888) 824-0200. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Sauer?
Dr. Sauer's National Provider Identifier is 1609827583. 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 Dr. Sauer go to medical school?
Dr. Sauer attended Other, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Sauer have?
Dr. Sauer has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Sauer do most often?
According to Medicare billing data, Dr. Sauer performs procedures including insertion of heart rhythm monitor under skin; provides treatments such as heart rhythm review and interpretation of continous external ekg over 8-15 days and evaluation of single, dual, multiple lead or leadless pacemaker 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 Dr. Sauer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sauer. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.