South Heart Clinic
Cardiology • Harlingen, TX • 4 locations in Rio Grande Valley locations
Information from public sources; not independently verified. Confirm hours, insurance and appointment availability with the clinic.
Last gathered July 11, 2026. How our information is sourced · Report incorrect information
About
South Heart Clinic is a private medical practice in Harlingen, Texas, specializing in cardiovascular care. It features a team of 11 cardiologists and provides advanced diagnostics, personalized treatment plans, and modern interventions for heart health. The clinic emphasizes comprehensive, compassionate care and education to combat heart disease in the community. With 6 offices nationwide (primarily in Harlingen and Weslaco, TX), the organization operates as a partnership under South Heart Clinic, PLLC. Contact: multiple local Texas phone numbers; HQ at 2310 N Ed Carey Dr, Harlingen, TX 78550.
Services Offered
Technology & Equipment
Team
Insurance & Payment
Not published.
insurance, self-pay, cash, credit card
Languages Spoken
FAQs
What makes South Heart Clinic unique?
Over 40 years serving the Rio Grande Valley; 12 experienced cardiologists on staff; advanced imaging and in-house Cardiac PET/CT.
What imaging technology is in-house?
Siemens Cardiac PET/CT system at Harlingen location.
What are the clinic hours?
Monday - Thursday 8:00 AM - 5:00 PM; Friday 8:00 AM - 3:00 PM.
Photos
Photos published by South Heart Clinic showing the cardiology practice in Harlingen, TX.
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What Patients Say
Overall sentiment across review platforms: mixed
- Birdeye (Google reviews): 3.6 out of 5 stars (28 reviews (aggregated))
Patients praise
- Highly knowledgeable and professional cardiologists
- Thorough and easy-to-understand explanations of medical conditions
- Efficient and well-organized intake process in the clinic
- Personalized patient care and attention to detail
- Modern facility with advanced diagnostic capabilities
Common complaints
- Difficulties reaching the office by phone
- Communication issues with administrative staff
- Delays in referral processing
- Instances of rude interactions with answering services
"Dr Stone is a great cardiologist and explains everything in detail so we can better understand my husband's heart condition. The only bad thing is that today I have tried to contact both locations Harlingen and Weslaco and no one is answering phones today I guess."
- LocalityBiz patient review"We were very impressed with Dr. Danielle Stone. She was caring, great listener and very informative and very professional. I believe I made the right choice in choosing her as my cardiologist."
- South Heart Clinic official website testimonial"It is both disappointing and frustrating that my mother has called the office a total of six times over the past two days and none of her messages have been returned."
- Birdeye/Google reviewSynthesized from public review platforms as of Jul 11, 2026 - sources: [1][2][3][4].
In the News
- South Heart Clinic Introduces the Rio Grande Valley’s First In-House Cardiac PET/CT - Apr 6, 2026
- Harlingen Medical Center Becomes First Hospital in Cameron County to Bring New Heart Rhythm Technology to the Community - Harlingen Medical Center - May 15, 2026
- South Heart Clinic Invites the Community to Meet New Electrophysiologist Dr. José Luis Lozano Garcia - Jun 4, 2026
- Dr. Balderas Named Best Cardiologist - Jul 11, 2025
- Harlingen Medical Center Performs Harlingen’s 1st “Transcatheter Aortic Valve Replacement” Procedure - Harlingen Medical Center - Jun 1, 2026
Information sourced from the clinic's website as of July 11, 2026.
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