Leonard, Daniel DO

Pulmonary Medicine
Ascension NE Wisconsin – St. Elizabeth Campus1506 S. Oneida StreetAppleton, WI 54915(920) 738-2000 

Dr. Leonard, who is also board certified in internal medicine, completed his medical residency at Swedish Covenant Hospital in Chicago, Illinois. He earned his Doctor of Osteopathy degree at Lake Erie College of Osteopathic Medicine in Bradenton, Florida. Dr. Leonard holds an A.B. degree from Hamilton College in Clinton, New York.

Medical Interests:

A board certified pulmonologist and intensivist, Dr. Leonard provides attentive, personable and thorough care to adult patients. He has a special interest in the treatment of complex and difficult cases, including caring for pregnant patients who have lung disease.


“My goal is to be the most affable, approachable and humble physician I can be,” said Dr. Leonard.

When not in the office, Dr. Leonard enjoys listening to the Grateful Dead and working in his yard.


Contact Us

1506 S. Oneida St
Appleton, WI 54915
(920) 738-2000

Connect With Us

Copyright © 2018 Affinity Health System. All Rights Reserved