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

Dr. Gunilla Sigrid Carlsson Thorn, MD

Individual provider Dermatology Physician · NPI 1174779755

Dr. Gunilla Sigrid Carlsson Thorn, MD practises Dermatology in St Charles, Illinois. Graduated from Northwestern University Feinberg Medical School in 2008, 18 years ago. Practices with Central Dupage Physician Group, a 1,094-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
18
Trained at
Northwestern University Feinberg Medical School
Licensed in
IL
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2900 Foxfield Rd
St Charles, IL 60174-5799 Not confirmed with CMS for 12 years — call before visiting
Phone: (630) 315-6500
Fax: (630) 615-6519
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence AN52403945287 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence AN52403945287 (IL)

Record details

NPI number1174779755
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 14, 2008
Last updated in NPPESAugust 11, 2014

Medicare enrollment

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

Medicare specialtyDERMATOLOGY
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 2008 (18 years in practice)
Group practice Central Dupage Physician Group — 1094 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 295 times · 82nd percentile
Removal or shaving of skin growth 70 times · 82nd percentile
Skin biopsy 122 times · 78th percentile
Melanoma (skin cancer) excision 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients444
Services billed 1,557 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Northwestern Medicine Central Dupage Hospital Hospital · Winfield, IL

Colleagues at Central Dupage Physician Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1094 clinicians in the practice; 12 are shown here.

Other providers in St Charles