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Edit this profileAt a glance
- 601 7Th St S Ste 205, Saint Petersburg, FL 33701
About Dr. Cassidy
Based in Saint Petersburg, FL, Dennis M. Cassidy, M.D. is listed in the NPI registry under clinical cardiac electrophysiology. According to Medicare claims data, Dennis cared for 1,091 Medicare patients across 2,145 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, routine electrocardiogram (ecg) using at least 12 leads with interpretation and report, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. NPI 1649272006 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
- (727) 893-6234
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
601 7TH ST S STE 205
Saint Petersburg, FL 33701
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
Abnormal heart rhythms
Conduction disorders
Dangerous heart rhythms
Device issues
Fainting & reflex disorders
Genetic heart conditions
- Brugada Syndrome
- Catecholaminergic Polymorphic Ventricular Tachycardia
- Arrhythmogenic Right Ventricular Dysplasia
- 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)
Most searched conditions
Autonomic disorders
Device complications
Procedures & services
Advanced therapies
Catheter ablation
- AV Node Ablation
- Cardioneuroablation
- Epicardial Catheter Ablation
- Heart Flutter Ablation
- Pulsed Field Ablation
- PVC Ablation
- Ventricular Tachycardia Ablation
- Cryoablation
Device care
Device management
Device placement
Device procedures
- Cardiac resynchronization therapy device placement
- Conduction System Pacing
- Leadless Pacemaker Placement
- Pacemaker Battery Replacement
- Pacemaker Lead Removal
- Subcutaneous Defibrillator Placement
- Implantable cardioverter-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
Medication management
Minor device procedures
Most searched procedures
- AFib ablation
- Angioplasty and stenting
- Cardiac catheterization
- Pacemaker implantation
- Watchman procedure
Heart rhythm treatments
Rhythm restoration
Stroke prevention
Procedures Most Often Billed to Medicare
2,145 services · 1,091 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
447 | More often than most peers in Clinical Cardiac Electrophysiology |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
132 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days | Treatment | 93296 |
113 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | Treatment | 93294 |
112 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | Treatment | 93298 |
44 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Programming of dual lead pacemaker system | Treatment | 93280 |
43 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Heart rhythm recording of continous external ekg over 8-15 days | Treatment | 93246 |
24 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Heart rhythm review and interpretation of continous external ekg over 8-15 days | Treatment | 93248 |
23 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
507 | More than most peers in Clinical Cardiac Electrophysiology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
431 | More often than most 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.
Other clinical cardiac electrophysiology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
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.
More connections — 30 related providers in 4 groups
Other clinical cardiac electrophysiology specialists in Saint Petersburg 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1978 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 8
Providers in FL who bill this service to Medicare most often.
Common questions
What does Dennis M. Cassidy specialize in?
Dennis M. Cassidy is a clinical cardiac electrophysiology in Saint Petersburg, FL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dennis M. Cassidy located?
Dennis M. Cassidy is listed at 601 7Th St S Ste 205, Saint Petersburg, FL 33701. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dennis M. Cassidy's phone number?
The number on file is (727) 893-6234. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dennis M. Cassidy's NPI number?
Dennis M. Cassidy's National Provider Identifier is 1649272006. 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 Dennis M. Cassidy train?
Dennis M. Cassidy attended Other, graduating in 1978. This comes from the CMS National Downloadable File.
CMS public data
How long has Dennis M. Cassidy been practicing?
Dennis M. Cassidy has 48 years experience. Calculated from a graduation year of 1978, reported in the CMS National Downloadable File.
CMS public data
What does Dennis M. Cassidy do most often?
According to Medicare billing data, Dennis M. Cassidy provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dennis M. Cassidy confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dennis M. Cassidy. If this is you, claiming it is free.
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