
Southern Mississippi Heart Center
Cardiology • Biloxi, MS • Since 1946
About
Southern Mississippi Heart Center in Biloxi operates under Memorial Health System, a nonprofit healthcare system headquartered in Gulfport, MS. Memorial Health System offers comprehensive heart and cardiovascular services as part of its regional programs, along with emergency, orthopedics, neurosciences, oncology, women/children services, and more. The system includes multiple clinics and facilities, Level II trauma designation, and a network of Memorial Physician Clinics across the coast. Memorial is jointly owned by the City of Gulfport and Harrison County and has a long-standing presence since 1946, with a large regional footprint that includes Biloxi through Memorial’s Gulfport-based operations. If you’re specifically seeking the Southern Mississippi Heart Center in Biloxi, Memorial Health System is the overarching organization that provides those heart/cardiovascular services in the Biloxi area.
Clinic Type
Cardiology
Address
Biloxi, Mississippi
Phone
+1-228-575-8020
hzelenka@mhg.com
Opening Hours
Not published — contact the clinic to confirm hours.
Telehealth
https://wearememorial.com/service/telehealth/
Services Offered
Technology & Equipment
Insurance & Payment
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Languages Spoken
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Social Media
Photos








What Patients Say
Overall sentiment across review platforms: mixed
- Vitals: 4.4 out of 5 stars (based on provider-specific ratings) (18 ratings (for a specific provider at this practice))
Patients praise
- highly regarded medical care and expertise of cardiologists
- staff noted as outstanding, helpful, and kind in some reviews
- effective and respectful patient consultations
Common complaints
- reports of rude, unprofessional, or overworked front desk staff
- difficulty reaching the clinic via telephone with calls allegedly transferred to an answering service permanently
"Dr Passarelli and his staff in the office are absolutely wonderful, helpful, and kind, but the front desk lady at the testing center, Tina, is the absolute worst. She is extremely rude, not friendly, and seems like she has no clue what she’s doing and laughs and carries on personal conversations instead of helping the people waiting at the window."
— Dr. Rachele Idelman blog (quoting patient feedback)"He is arrogant but that's because he really does know what he is doing. I think he is the BEST on the Gulf Coast. He has saved many a life including mine."
— Vitals review of a provider at the clinicSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Memorial Hospital Biloxi Introduces Advanced Heart Pump Technology for Cardiac Patients - WXXV News 25 — Jun 9, 2026
- Southern Mississippi Heart Center, P.A. RN, CMA and Medical Receptionist in Ocean Springs , MS | Sun Herald — Jul 2, 2026
- Memorial Hospital launches innovative procedure for heart disease patients | Mississippi Coast — Jun 9, 2026
- First CardioMEMS at Memorial Biloxi | Mississippi Coast — Oct 11, 2025
Information sourced from the clinic's website as of . Own this clinic? Claim or correct this listing.
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