Doctor profile · Federal record

Dr. Gunilla Carlsson Thorn, M.D.

Dermatology Physician (CMS: Dermatology) · Internal Medicine Physician · St Charles, IL

  • NPI 1174779755
  • Accepts Medicare
  • MIPS 91.3 / 100 · 2023
  • 18 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2900 Foxfield RD
St Charles, IL 601745799
(630) 315-6500
fax (630) 615-6519

Credentials & registration

NPPES · NUCC
NPI registered
August 2008 — 18 yrs on file
Profile last updated
August 11, 2014
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
207N00000X — NUCC code
State license (1)
Illinois #AN52403945287
Medicaid
IL #036132093

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1174779755. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,258
Distinct HCPCS
10
Medicare allowed
$107,721
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 288 195 $134
17003 Destruction of precancer skin growth, 2-14 growths 268 69 $7
99213 Established patient office or other outpatient visit, 20-29 minutes 199 174 $95
17000 Destruction of precancer skin growth, 1 growth 146 119 $57
17110 Destruction of skin growth, 1-14 growths 103 80 $114
11102 Biopsy of related skin growth, first growth 82 73 $97
99203 New patient office or other outpatient visit, 30-44 minutes 38 38 $119
99204 New patient office or other outpatient visit, 45-59 minutes 33 33 $176
99212 Established patient office or other outpatient visit, 10-19 minutes 27 26 $60
11301 Shaving of skin growth of body, arms, or legs, 0.6-1.0 cm 25 25 $126

In context: peer comparison

Among 1 peers in St Charles Dermatology Physician, average services per provider: 96. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$17
Transactions
8
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Strata Skin Sciences, INC. 8 $17.18

By nature of payment

Food and Beverage
$17

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
388
Patients
235
Total drug cost
$16,468
Drug Type Claims Patients Total cost
Ketoconazole Generic 58 44 $1,461
Triamcinolone Acetonide Generic 52 44 $583
Doxycycline Hyclate Generic 48 18 $1,586
Clobetasol Propionate Generic 46 36 $4,314
Mometasone Furoate Generic 26 17 $640
Fluocinolone Acetonide Generic 22 18 $1,641
Valacyclovir (Valacyclovir Hcl) Brand 21 12 $448
Clindamycin Phosphate Generic 19 0 $1,153
Fluorouracil Generic 19 19 $1,638
Hydrocortisone Generic 16 15 $87

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Gunilla Carlsson Thorn's medical specialty?
Dr. Gunilla Carlsson Thorn practices Dermatology Physician in St Charles, IL.
Where does Dr. Gunilla Carlsson Thorn practice?
Dr. Gunilla Carlsson Thorn practices at 2900 Foxfield RD, St Charles, IL 601745799. Office phone: 6303156500.
What is Dr. Gunilla Carlsson Thorn's NPI?
Dr. Gunilla Carlsson Thorn's National Provider Identifier (NPI) is 1174779755, issued by NPPES.
Does Dr. Gunilla Carlsson Thorn accept Medicare assignment?
Yes. Dr. Gunilla Carlsson Thorn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gunilla Carlsson Thorn commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Destruction of precancer skin growth, 2-14 growths (HCPCS 17003); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.