Doctor Profile

Cardiology · Cardiac Electrophysiology

Robert H. Drennan

MD · Cardiac Electrophysiology · University Of South Carolina School Of Medicine
6300 MAIN ST
Zachary, LA 70791
✓ Accepts Medicare 🎓 18 Years Practicing
1.2K
Medicare Patients / yr
29
Procedures Billed
18
Years Practicing
4
Hospital Affiliations
Data Source: Identity from NPPES (2026). Procedure & patient volume from CMS Medicare Provider Utilization & Payment Data (2023). Hospital affiliations from CMS Physician Compare. We display publicly reported data — no personal information required to view any of it.
Reviewed by: Wes Ward, Founder & Data Lead • View our methodology

Important: We are not affiliated with Medicare, CMS, or Robert H. Drennan's practice. This page displays publicly available CMS data to help you research Medicare providers. We do not sell insurance or represent any insurance company. For official enrollment and complete plan information, visit Medicare.gov or call 1-800-MEDICARE.

Medicare Plans That Cover Dr. Drennan

See which plans Dr. Drennan accepts

We're pulling plan acceptance data directly from insurance carrier provider directories. Until that feed is live for Louisiana, the fastest way to find a Medicare plan that covers Dr. Drennan is to compare every Medicare Advantage and Part D plan available near 70791, LA — the Cardiac Electrophysiology's office can quickly confirm which of the top local plans they accept.

Compare Medicare Plans near 70791, LA →

Or call the office at (225) 570-2618 to confirm acceptance directly.

What Dr. Drennan Does

Dr. Drennan served 1,196 Medicare patients across 2,132 services in the latest CMS reporting year. That's 27% below the average Cardiac Electrophysiology in Louisiana (1,634 patients across 28 doctors).

ProcedureServicesMedicare Patients
Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days (93296)332167
Established patient office or other outpatient visit, 30-39 minutes (99214)290148
Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec (G2066)22869
Evaluation of cardiac rhythm monitor system, remote up to 30 days (93298)22468
Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)208107

How to read this: "Services" are the total times Dr. Drennan billed Medicare for each procedure in the latest reporting year. "Patients" counts unique Medicare beneficiaries. Procedures are shown in plain English; the underlying HCPCS codes are available on request.

Hospital Affiliations

Dr. Drennan is affiliated with 4 hospitals according to CMS Physician Compare. Below are the 4 hospitals with full quality profiles on our site. Hospital network status depends on your Medicare Advantage plan — always verify before enrolling.

Lane Regional Medical Center

Zachary, LA
★★★★☆ 4/5 CMS Rating

Baton Rouge General Medical Center

Baton Rouge, LA
★★★☆☆ 3/5 CMS Rating

Our Lady Of The Lake Regional Medical Center

Baton Rouge, LA
★★★☆☆ 3/5 CMS Rating

The General

Baton Rouge, LA
Rating not available

Practice Location & Telehealth Readiness

Dr. Drennan practices at the address below. If you're evaluating Medicare coverage, location matters for in-network access and — when Dr. Drennan offers telehealth — broadband availability at your home matters for virtual visits.

Address: 6300 MAIN ST, Zachary, LA 70791
Phone: (225) 570-2618

Area Safety Grade

B-

Block-level crime analysis from CrimeGrade.org.

Practice Accessibility

33 min

Average commute time in this zip · 93% of residents drive to work. Practical context for patients deciding whether to make the trip. See the full neighborhood profile at BestNeighborhood.org.

Telehealth Readiness

76.8824

Households with fiber broadband — important for reliable virtual visits. Check your address at ISPReports.org.

Get directions on Google Maps →

Other Cardiology Doctors near 70791, LA

If Dr. Drennan isn't accepting new patients or isn't in your plan's network, these are the closest cardiology doctors near 70791, LA:

DoctorSpecialtyMedicare Patients / yrDistance
Charisse J. WardCardiovascular Disease (Cardiology)3431.3 mi
Abdullah Bin MunirInterventional Cardiology3481.3 mi
Charles A. ThompsonInterventional Cardiology3.2K1.3 mi
Babu JastiInterventional Cardiology3.3K1.6 mi
Tara K. JarreauCardiovascular Disease (Cardiology)1.8K5.4 mi
Charles A. SmithCardiovascular Disease (Cardiology)2.1K5.4 mi

View all cardiology doctors near 70791, LA →

How to Use This Information

Choosing a Medicare plan that covers Dr. Drennan takes three steps:

Compare Medicare Plans near 70791, LA → All Doctors near 70791, LA

Robert H. Drennan: Common Questions

Does Dr. Drennan accept Medicare?
Yes. Dr. Drennan is enrolled with Medicare and listed in the CMS Provider Enrollment, Chain, and Ownership System (PECOS). Whether a specific Medicare Advantage plan covers Dr. Drennan depends on that plan's provider network. Compare Medicare plans near 70791, LA →
Where is Dr. Drennan's office?
Dr. Drennan practices at 6300 MAIN ST, Zachary, LA 70791. Phone: (225) 570-2618.
What Medicare plans does Dr. Drennan accept?
Original Medicare (Parts A & B) is accepted. Medicare Advantage plan acceptance varies by carrier and plan year. Call the office at (225) 570-2618 to confirm your specific plan is accepted, or compare all Medicare plans near 70791, LA to see available options.
Does Dr. Drennan offer telehealth visits?
CMS does not currently list Dr. Drennan as offering telehealth. Call the office at (225) 570-2618 to confirm whether virtual visits are available.
How experienced is Dr. Drennan?
Dr. Drennan graduated in 2008 and has been practicing for approximately 18 years. In the latest CMS reporting year, Dr. Drennan treated 1,196 Medicare patients across 29 distinct procedure types.
How do I know if Dr. Drennan is in-network for my Medicare plan?
Network status varies by plan. The best verification steps: (1) check your plan's provider directory at the carrier's website, (2) call the office at (225) 570-2618 and ask which plans they currently accept, and (3) call the number on the back of your Medicare card. Print our doctor questions checklist →

About the Reviewer

Wes Ward

Wes Ward

Founder & Data Lead

Wes Ward reviews all doctor profiles and methodology for data accuracy. Every Medicare provider page on this site — including the utilization statistics, hospital affiliations, and geocoded practice address — goes through his data-validation pipeline before publication. We display only publicly available CMS data; you never need to enter personal information to see any of it.

With 25+ years in data analytics — including work with highly regulated genomic data at Ancestry.com — Wes brings enterprise-level rigor to healthcare transparency. He is also a co-founder of BestNeighborhood.org (neighborhood data), CrimeGrade.org (block-level safety analytics), and ISPReports.org (broadband availability for telehealth). Those sister sites power the location and telehealth-readiness context on this page.

View full profile →LinkedIn

Data sources: CMS NPPES (2026), CMS Medicare Provider Utilization & Payment Data (2023), CMS Physician Compare, CrimeGrade.org, BestNeighborhood.org, ISPReports.org. This page is for informational purposes only. Always verify coverage directly with the plan and practice. Read our full methodology →Privacy policy

Medicare Resources

Choosing the right Medicare plan involves more than just doctor coverage. These guides help you evaluate the full picture:

Medicare Plans for Conditions Treated by Cardiology Specialists

See which Medicare plans score highest for conditions commonly managed by this specialty in 70791, LA:

Does your Medicare plan cover Dr. Drennan?

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