Quality Health Care by Caring Physicians

Dr. Morrow, Dr. O'Malley, Dr. Zelenski
Board-certified Internists

St. Cloud Medical Group Providers

Peter T. Morrow, M.D.

Peter T. Morrow, M.D.

Dr. Morrow, a Board Certified Internist, received his undergraduate degree from University of South Florida graduating magna cum laude with a Bachelor of Science in Chemistry. Dr. Morrow received his medical degree from the University of Miami, he then served his residency in Internal Medicine at Presbyterian/St. Luke’s Medical Center in Denver Colorado.

Dr. Morrow was in private practice prior to joining St. Cloud Medical Group in 1994. Dr. Morrow is certified by the American Board of Internal Medicine with added qualifications in Geriatric Medicine.


Martin J. O'Malley, M.D.

Martin J. O'Malley, M.D.

Dr. O’Malley, Board Certified Internist, received his undergraduate degree from University of Florida with a Bachelor of Science in Zoology. He received his Medical Degree from the University of Miami and completed his residency in Internal Medicine at Willford Hall United States Air Force Medical Center.

Dr. O’Malley was in private practice prior to joining St. Cloud Medical Group in 1994. Dr. O’Malley is certified by the American Board of Internal Medicine with added qualifications in Geriatric Medicine.


Pawel Zelenski, M.D.

Pawel Zelenski, M.D.

Dr. Zelenski, a Board Certified Internist, received his undergraduate degree from Florida International University with a Bachelor of Science in Chemistry with honors. Dr. Zelenski received his medical degree from the University Of Miami School Of Medicine, he then served his residency in Internal Medicine at Orlando Regional Healthcare.

Dr. Zelenski joined St. Cloud Medical Group in 1998. Dr. Zelenski is certified by the American Board of Internal Medicine with added qualifications in Geriatric Medicine.