Cardiovascular Institute of the South

Cardiovascular / Cardiology • New Iberia, LA • Since 1983

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About

Cardiovascular Institute of the South (CIS) operates 21 cardiovascular offices in Louisiana and Mississippi, offering comprehensive heart and vascular care from prevention to treatment, including interventional procedures, electrophysiology, lipid management, and telemedicine. While CIS is headquartered in Houma, LA, and has a broad Louisiana presence, there is no specific New Iberia location listed among their known offices. For a cardiologist near New Iberia, CIS recommends visiting cardio.com or calling 1-800-425-2565 to locate the closest CIS clinic and book an appointment.

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Clinic Type

Cardiovascular / Cardiology

Address

500 North Lewis Street, Suite 100, New Iberia, Louisiana

Phone

3373675200

Email

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Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://www.cardio.com/locations/new-iberia/

Services Offered

Cardiology
Interventional Cardiology
Vein treatments
Vascular diagnostics
Stress testing
Cardiac rhythm monitoring

Technology & Equipment

vascular lab
stress testing
cardiac rhythm monitoring
in-clinic vein treatments

Team

Marcus Cox, MD — Interventional Cardiologist
Kris Lindsay, MD — Cardiologist
Krishna Nagendran, MD — Interventional Cardiologist
Elvis Siripannho, MD — Cardiologist

Insurance & Payment

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Languages Spoken

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Social Media

Twitter Youtube Facebook Linkedin Instagram

Photos

What Patients Say

Overall sentiment across review platforms: very positive

rater8: 4.9 out of 5.0 (for CIS New Iberia location) (Over 300 ratings (specifically for New Iberia location))
Vitals (Dr. Marcus Cox): 5.0 out of 5.0
Vitals (Dr. John K. Lindsay): 5.0 out of 5.0

Patients praise

Professional and knowledgeable staff
Compassionate and caring approach
Thorough explanations of medical conditions and plans
Good bedside manner
Friendly office atmosphere

Common complaints

Minimal negative feedback reported in reviews

"Doc is great. Takes time to explain everything on your visit. Very satisfied."

— Patient review of Dr. Marcus Cox (rater8)

"Love the drs there. Nurses are friendly also make you feel welcome dr Lyndsey is my Dr he is amazing. Dr Butachi was my dr he saved my life 2 times I love and miss him"

— Patient review (WebMD)

"Dr. Reed listened to my concerns with much professionalism compassion and patient . She addressed my issues and I am feeling assured of my treatment . I was very happy with her ."

— Patient review of Joni Reed, NP (rater8)

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026. Own this clinic? Claim or correct this listing.