Quick answers
- Which hospitals does Robert H. Drennan work at?
- Medicare's official clinician data lists Robert H. Drennan at 4 hospitals: Baton Rouge General Medical Center, Lane Regional Medical Center, Our Lady of the Lake Regional Medical Center and The General. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert H. Drennan see patients?
- Medicare's clinician data lists 2 practice locations, including Zachary, LA and Baton Rouge, LA. Call before your visit to confirm the address.
- What is Robert H. Drennan's specialty?
- Medicare lists Cardiac Electrophysiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does Robert H. Drennan accept Medicare assignment?
- Yes. Medicare's clinician data says Robert H. Drennan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Robert H. Drennan?
- (225) 570-2618, as listed in official Medicare / NPI Registry data.
- What is Robert H. Drennan's NPI number?
- 1538336177. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert H. Drennan works
Medicare's Facility Affiliation Data lists Robert H. Drennan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baton Rouge General Medical CenterBaton Rouge, LA · Acute Care Hospital · CCN 190065
- Lane Regional Medical CenterZachary, LA · Acute Care Hospital · CCN 190020
- Our Lady of the Lake Regional Medical CenterBaton Rouge, LA · Acute Care Hospital · CCN 190064
- The GeneralBaton Rouge, LA · Acute Care Hospital · CCN 190316
Practice locations
Addresses where Robert H. Drennan is enrolled with Medicare (CMS data updated 2026-10-02).
- 6300 Main StZachary, LA 70791 (225) 570‑2618
- 8401 Picardy AveBaton Rouge, LA 70809 (225) 308‑0247
Group practices
Medicare enrollment lists Robert H. Drennan as a member of these groups (CMS data updated 2026-10-02).
- Cardiovascular Institute of the South, LLC146 clinicians in the group
- Hospital Service District 1 of East Baton Rouge Parish44 clinicians in the group
Specialties
Other cardiac electrophysiologists in Louisiana
Clinicians with the same Medicare primary specialty in Louisiana — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of South Carolina School Of Medicine |
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538336177 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians