Lawrence Walser, MD
Internal Medicine & Pulmonology
185 Old Country Rd., Suite 3, Riverhead, NY 11901
To make an appointment, call: 631-727-2523
Monday – Friday
- Internal Medicine
- Critical Care
A native-born Long Islander, Dr. Walser is one of Suffolk County's most distinguished physicians. A former Chief of the Departments of Medicine at Eastern Long Island Hospital and Peconic Bay Medical Center, he currently serves as Medical Director of Peconic Bay Medical Center's Intensive Care Unit and Department of Respiratory Care.
Fellowship-trained in Pulmonary-Critical Care, Dr. Walser is Board-Certified in Internal Medicine, as well as in the Sub-Specialties of Pulmonary Disease and Critical Care.
Dr. Walser has often been honored for his contributions and accomplishments as a physician and pulmonologist, including as a "Top Doctor" for 2014 by US News & World Report.
American Board of Internal Medicine
American Board of Internal Medicine: Pulmonary Disease Subspecialty
American Board of Internal Medicine: Critical Care Subspecialty
National Board of Medical Examiners
SUNY Downstate College of Medicine, Brooklyn NY
Fellowship in Pulmonary-Critical Care, SUNY Stony Brook University Medical Center, Stony Brook, NY
American College of Chest Physicians
American Thoracic Society
- Peconic Bay Medical Center
- Eastern Long Island Hospital