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About

Memorial Health System is a nonprofit healthcare system based in Gulfport, Mississippi, serving the south Mississippi and Gulf Coast region. It operates a network of clinics, hospitals, and facilities offering virtual and in-person care across primary, emergency, cancer, cardiology, neurosciences, orthopedics, and women/children services. The system includes a Level II Trauma Center, Level III Neonatal ICU, and a nationally certified Primary Stroke Center, with advanced imaging and robotic-assisted surgery. Memorial is jointly owned by the City of Gulfport and Harrison County, licensed for 303 beds, and operates more than 95 physician clinics. Headquartered in Gulfport (address: 4500 13th St, Gulfport, MS 39501). For specific personnel or programs related to Bay Saint Louis, you may need to contact Memorial Health System directly.

Clinic Type

Pulmonology

Address

Memorial Pulmonary Clinic – Interventional Pulmonary/Critical Care 1340 Broad Avenue, Suite 300, Gulfport, MS 39501; Memorial Hospital Gulfport 4500 13th Street Gulfport, MS 39501; Memorial Hospital Biloxi 150 Reynoir Street Biloxi, MS 39530; Pulmonology Suite 306 147 Reynoir Street, Suite 306, Biloxi, MS

Phone

(228) 575-1775

Email

hzelenka@mhg.com

Opening Hours

Not published — contact the clinic to confirm hours.

Telehealth

Available (telehealth/virtual visits mentioned)

Services Offered

  • Pulmonology
  • Interventional Pulmonology
  • Critical Care Medicine
  • Pulmonary Disease
  • Inpatient Physician Services
  • Pulmonology/Lung Health

Team

  • Summer Allen, MD — Pulmonology / Interventional Pulmonology / Critical Care Medicine

Insurance & Payment

—

Languages Spoken

—

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Healthgrades: 3.4 out of 5 stars (5 ratings)
  • WebMD: 4.0 out of 5 stars (aggregated) (5 ratings (with 2 written reviews))
  • US News & World Report: 4 out of 5 stars (6 reviews)
  • Healthline (FindCare): 5.0 out of 5 stars (1 rating)

Patients praise

  • Some patients report that she is knowledgeable, efficient, and kind
  • Instances of thorough investigation into health problems and providing dedicated care reported by some patients

Common complaints

  • Reports of poor communication, including lack of follow-up after procedures and inability to get explanations for test results
  • Concerns regarding lack of attentiveness or dismissing patient symptoms/concerns
  • Issues with scheduling and long wait times for appointments and procedures

"Because of her not listening when I told her I was having trouble breathing, she missed I had lower lobe pneumonia."

— WebMD user review

"Dr Allen is the first Dr to finally properly investigate my sister's health problems. She is going above and beyond any other Dr. I am very grateful!!"

— Healthgrades user review

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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