Patient Reviews

Reviews reflect patients' level of satisfaction with the care they received from this provider. Dr. Louis Guernsey xhas an overall rating of 5.0.

Specialties & Expertise

Dr. Louis Guernsey has the following 8 areas of expertise, 1 specialty and 2 board certifications.

Pulmonary Disease

A pulmonologist is a physician who specializes in the diagnosis and treatment of conditions related to the lungs and respiratory tract.

These specialists are similar to critical care specialists in that their patients often require mechanical ventilation to assist their breathing.

Pulmonologists diagnose and treat patients with conditions such as asthma, cystic fibrosis, asbestosis, pulmonary fibrosis, lung cancer, COPD, and emphysema. Exposure and inhalation of certain toxic substances may also warrant the services of a pulmonologist.

Some of the tools and tests pulmonologists use to diagnose a patient are a stethoscope in order to listen for abnormal breathing sounds, chest X-rays, CT scans, blood tests, bronchoscopy, and polysomnography.


See areas of expertise for treating specific conditions, procedures and surgeries for this doctor.

Board Certifications

See the board certifications this doctor has received. Board certifications provide confidence that this doctor meets the nationally recognized standards for education, knowledge and experience.

Locations & Directions

Nemours Dupont Pediatrics

1000 White Horse Rd
Voorhees, NJ 08043

Alfred I DuPont Hospital for Children

1600 Rockland Rd
Wilmington, DE 19803

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