Summary

Dr. Robert Drennan is a cardiovascular disease specialist and internal medicine physician with 18 years of experience treating heart conditions and providing comprehensive adult care. He earned his medical degree from the University of South Carolina School of Medicine in Columbia and completed his residency training at LSU Health Sciences. Dr. Drennan speaks both English and Spanish to better serve his diverse patient community.

Dr. Drennan practices at multiple locations throughout Baton Rouge and Zachary, Louisiana, and maintains affiliations with Baton Rouge General Medical Center Bluebonnet, Baton Rouge General Medical Center Mid City, and Our Lady of the Lake Regional Medical Center. He specializes in treating heart rhythm disorders such as atrial fibrillation and other cardiac arrhythmias. His expertise includes performing diagnostic tests like electrocardiograms and stress tests to evaluate heart function and health. Patients rate Dr. Drennan highly for his care, giving him an average rating of 5.0 stars.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 5
  • 18 years of experience
  • speaks English, Spanish
  • Lsu Health Sciences
  • 35 written reviews
  • 2 specialties
  • 7 areas of expertise
  • 2 board certifications
  • 3 hospital affiliations
  • 3 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Robert Howard Drennan has 3 locations

Cardiovascular Institute Of The South Baton Rouge

8401 Picardy AveBaton Rouge, LA 70809
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Cardiovascular Institute Of The South Zachary

6550 Main St Ste 1000Zachary, LA 70791
Mon7:30 am - 5:00 pm
Tue7:30 am - 5:00 pm
Wed7:30 am - 5:00 pm
Thu7:30 am - 5:00 pm
Fri7:30 am - 5:00 pm
SatClosed
SunClosed

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Dr. Robert Howard Drennan, MDDr. Elsie Johanna Mensah-Armoo, MDDr. Damodar Reddy Kumbala, MDDr. Jennifer Smith Germond
Cardiovascular DiseaseHospital MedicineNephrologyNurse Practitioner
Accepts New Patients Accepts New Patients Accepts New Patients
18 Years of Experience 29 Years of Experience 30 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English Speaks Spanish, Chinese Speaks English, Spanish
Baton Rouge , LAAlexandria , LAJefferson , LABaton Rouge , LA
Med School: University Of South Carolina School Of Medicine Columbia Med School: University Of Ghana Medical School Med School: Blde Universitys Sri B M Patil Med Coll Hospital & Research Centre
Current Profile
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Insurance Plans Accepted by Dr. Robert Howard Drennan

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Robert Howard Drennan has the following 2 specialties

Specialty Expertise

Dr. Robert Howard Drennan has the following 7 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Internal Medicine
  • Physical
  • Vaccination
  • Weight Loss

Certifications, License, & Education

18 Years Experience

Dr. Robert Howard Drennan holds an expired medical license in the state of Louisiana.

Medical License

Medical Doctor with an expired medical license in the state of Louisiana that expired in 2026.

Education & Training

Residency

Completed their residency at Lsu Health Sciences.

Medical School

Graduated from University Of South Carolina School Of Medicine Columbia in 2008.

NPI Number

Dr. Drennan's NPI number is 1538336177.

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Frequently Asked Questions

Does Dr. Robert Drennan accept my insurance?
You can see the insurance plans that Dr. Robert Drennan accepts on their Vitals profile.
Does Dr. Robert Drennan accept virtual/telehealth appointments?
Dr. Robert Drennan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Robert Drennan speak?
Dr. Robert Drennan speaks English and Spanish.
Is Dr. Robert Drennan accepting new patients?
Dr. Robert Drennan is accepting new patients on Vitals. View Dr. Robert Drennan's profile on Vitals to make an appointment.
Which hospitals is Dr. Robert Drennan affiliated with?
Dr. Robert Drennan is affiliated with Baton Rouge General Medical Center Bluebonnet, Baton Rouge General Medical Center Mid City, and Our Lady Of The Lake Regional Medical Center.

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