Doctor profile · Federal record

Dr. Ian Hornstra, MD

Dermatology Physician · Saint Louis, MO

  • NPI 1124044359
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
915 N Grand Blvd
Saint Louis, MO 63106
(314) 652-4100
fax (314) 238-6569
Additional location
4901 Forest Park Ave, Div Im Dermatology, Ste 502
Saint Louis, MO 631081495
(314) 273-3376
fax (888) 665-8309
Mailing address
9858 Warson Pointe Dr
Saint Louis, MO 631191056

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
May 7, 2024
Specialty taxonomy
207N00000X — NUCC code
State license (1)
Missouri #R2H85
Medicaid
MO #208235903

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124044359. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$56
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Leo Pharma INC. 1 $27.92
E.R. Squibb & Sons, L.L.C. 1 $27.67

By nature of payment

Food and Beverage
$56

Frequently asked questions

Auto-generated from federal data
What is Dr. Ian Hornstra's medical specialty?
Dr. Ian Hornstra practices Dermatology Physician in Saint Louis, MO.
Where does Dr. Ian Hornstra practice?
Dr. Ian Hornstra practices at 915 N Grand Blvd, Saint Louis, MO 63106. Office phone: 3146524100.
What is Dr. Ian Hornstra's NPI?
Dr. Ian Hornstra's National Provider Identifier (NPI) is 1124044359, issued by NPPES.