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

Dr. Therese Marie Lucietto-Sieradzki, MD

Individual provider Addiction Medicine (Family Medicine) Physician · NPI 1699708636

Dr. Therese Marie Lucietto-Sieradzki, MD is a Family Practice in Belvidere, Illinois. Graduated from Northwestern University Feinberg Medical School in 1998, 28 years ago. Accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
28
Trained at
Northwestern University Feinberg Medical School
Licensed in
IL
In the registry since
2006
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

205 Cadillac Ct Ste 7
Belvidere, IL 61008-1733
Phone: (815) 544-0087
Fax: (815) 544-0088
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 036102862 (IL)
Addiction Medicine (Family Medicine) Physician Taxonomy 207QA0401X · Licence 036102862 (IL)

Record details

NPI number1699708636
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 9, 2006
Last updated in NPPESJune 24, 2020
Certification dateJune 24, 2020

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesADDICTION MEDICINE
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 1998 (28 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare