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About

Southern Mississippi Heart Center (also known as Southern Mississippi Heart Ctr, P.A.) is a private hospital and cardiology clinic based in Ocean Springs, Mississippi. Key details: - Location: 3704 Bienville Blvd, Ocean Springs, MS 39564 (primary); additional offices in Pascagoula (4300 Hospital St) and Ocean Springs. - Industry: Hospitals and Health Care; specializes in heart testing and cardiology procedures. - Size: Approximately 2 employees; annual revenue around $24.6 million. - Leadership: CEO Mahmoud Zayed. - Contact: 1-228-762-1002 or 228-872-4040. - Status/Scope: Active private practice with multiple Gulf Coast locations; affiliated with various healthcare providers and suppliers in the region.

Clinic Type

Cardiology

Address

3704 Bienville Blvd, Ocean Springs, Mississippi 39564-5710, US

Phone

2288724040

Email

info@msdysautonomia.org

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • invasive cardiology
  • non-invasive cardiology
  • prevention care
  • Varicose Veins treatment

Insurance & Payment

Languages Spoken

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • drracheleidelman.com (citing aggregate/summary): 15 reviews mentioned (aggregate score not explicitly provided as a single number) (15)

Patients praise

  • Professional and knowledgeable physicians/specialists
  • Kind, caring, and attentive bedside manner from medical staff
  • Effective medical treatment and clear explanations of conditions

Common complaints

  • Rude or unprofessional front desk/office staff
  • Difficulty reaching the office via phone
  • Perception of being overworked/understaffed in administrative roles

"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..."

drracheleidelman.com

"Dr Reed and staff were outstanding. I'm from out of town and needed a quick consult. Got me right in and were respectful and caring."

Yelp

"Great medical care but the front office staff are rude and overworked. And they no longer answer their phones. They are impossible to reach."

drracheleidelman.com

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.

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