Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Daniel Leonard, DO

Individual provider Pulmonary Disease Physician · NPI 1366671489

Daniel Leonard, DO is a Critical Care (Intensivists) in Rockford, Illinois. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 2009, 17 years ago. Practices with Swedishamerican Hospital, a 387-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois and Wisconsin.

Years since qualifying
17
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
IL, WI
In the registry since
2009
Specialties on file
4
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

1340 Charles St Ste 405
Rockford, IL 61104-2200
Phone: (779) 696-6102
Fax: (779) 696-6026
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1506 S Oneida St, Appleton, WI 54915-1305 — (920) 730-6700

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 036-131017 (IL)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 036-131017 (IL)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 64155 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036-131017 (IL)

Record details

NPI number1366671489
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 10, 2009
Last updated in NPPESMay 15, 2026
Certification dateMay 15, 2026
Mailing address3291 Winnegamie Dr, Appleton, WI 54914-9023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Also practisesPULMONARY DISEASE
Medical schoolLAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduated 2009 (17 years in practice)
Group practice Swedishamerican Hospital — 387 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Rockford