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

Dr. Leslie Dalaza Mattson, MD

Individual provider Hospitalist Physician · NPI 1487975181

Dr. Leslie Dalaza Mattson, MD is an Internal Medicine in Bloomingdale, Illinois. Graduated from Loyola University of Chicago, Stritch School of Medicine in 2010, 16 years ago. Practices with Dupage Medical Group Ltd, a 1,328-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
16
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
IL
In the registry since
2010
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

220 Springfield Dr Ste 210
Bloomingdale, IL 60108-2215
Phone: (630) 510-2609
Fax: (630) 539-6049
Show map & directions

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

Additional practice locations (1)

  • 25 N Winfield Rd, Winfield, IL 60190 — (630) 456-7178

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036131651 (IL)
Hospitalist Physician Taxonomy 208M00000X · Licence 036.131651 (IL)

Record details

NPI number1487975181
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 16, 2010
Last updated in NPPESJune 28, 2024
Certification dateJune 28, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Dupage Medical Group Ltd — 1328 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services