Dr. Zayd A. Eldadah, MD, PHD
Cardiac Electrophysiology (Clinical Cardiac Electrophysiology Physician)
- Medicare participating
At a glance
- Medical school
- Johns Hopkins University School of Medicine (1996)
- Years since graduation
- 30
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 441
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1996Medical school: Johns Hopkins University School of Medicine
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Clinical Cardiac Electrophysiology Physician primary
DC license MD034889 -
Cardiovascular Disease Physician
DC license MD034889
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Medstar Washington Hospital Center Washington, DC
- Medstar Georgetown University Hospital Washington, DC
- Frederick Health Hospital Frederick, MD
Medical groups
- Medstar Medical Group II LLC (3,767 clinicians)
- Medstar Heart Institute LLC (301 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 441
- Services billed
- 1,568
- Patients’ average age
- 77
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 561 | 353 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 465 | 283 |
| Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | 238 | 118 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | 146 | 95 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 125 | 94 |
| Programming of dual lead pacemaker system | 119 | 90 |
| New patient office or other outpatient visit, 45-59 minutes | 53 | 53 |
| Programming of multiple lead pacemaker system | 53 | 34 |
| Programming of multiple lead implantable defibrillator system | 41 | 33 |
| Comprehensive electrophysiologic evaluation with catheter destruction of abnormality causing atrial fibrillation (uncoordinated contraction of upper chambers of heart) by pulmonary vein isolation | 40 | 40 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Xarelto (rivaroxaban) Other prescribers in Washington, DC | 19 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 12 companies reported 57 payments worth $13,959 in total to this clinician.
| Atricure, Inc. | $10,145 |
|---|---|
| Cardiva Medical, Inc. | $1,765 |
| Boston Scientific Corporation | $1,029 |
| Biosense Webster, Inc. | $382 |
| Medtronic, Inc. | $206 |
| Abbott Laboratories | $146 |
| Ebr Systems, Inc. | $97.57 |
| Kestra Medical Technology Services, Inc. | $73.97 |
| Consulting Fee | $11,500 |
|---|---|
| Food and Beverage | $2,378 |
| Education | $80.63 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Atricure, Inc. Jan 24, 2025 | Consulting Fee EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX · CARDIOVASCULAR | $10,000 |
| Cardiva Medical, Inc. May 21, 2025 | Consulting Fee CARDIVA VASCADE 5F VCS; CARDIVA VASCADE MVP XL VVCS 10-12F; CARDIVA VASCADE MVP VVCS 6-12F · DEVICES | $1,500 |
| Biosense Webster, Inc. Jun 5, 2025 | Education CARTO 3 · Cardiology · in-kind | $62.31 |
| Biosense Webster, Inc. Jun 6, 2025 | Education CARTO 3 · Cardiology · in-kind | $18.32 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 4 industry-funded studies in 2025, from 3 companies. The companies reported $89,001 in research payments for these studies, mostly to the institutions running them.
- AMBULATE EXPAND
Cardiva Medical, Inc. - AMBULATE EXPAND
Haemonetics Corporation - ADVENT Post Approval Study
Boston Scientific Corporation · Active, not recruiting · NCT06431815 - ADVENT Trial Long Term Outcomes Evaluating Atrial Fibrillation Progression Study
Boston Scientific Corporation · Completed · NCT06526546
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.