Doctor profile · Federal record

Dr. Darren Klawinski, MD

Pediatric Hematology & Oncology Physician · Pediatrics Physician · Jacksonville, FL

  • NPI 1457763096
  • 12 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
807 Childrens Way
Jacksonville, FL 322078426
(904) 697-3600
Additional location
700 Childrens Dr # Drive5
Columbus, OH 432052664
(614) 722-3550
fax (614) 722-3369

Credentials & registration

NPPES · NUCC
NPI registered
June 2014 — 12 yrs on file
Profile last updated
August 27, 2021
Specialty taxonomy
2080P0207X — NUCC code
State license (1)
Florida #ME131091

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1457763096. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$411
Transactions
17
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
PFIZER INC. 3 $125.66
Novartis Pharmaceuticals Corporation 5 $105.59
JAZZ PHARMACEUTICALS INC. 3 $60.02
SOBI, INC 2 $33.45
Day One Biopharmaceuticals 1 $24.45
Alexion Pharmaceuticals, Inc. 1 $23.95
USWM, LLC 1 $20.46
Bayer Healthcare Pharmaceuticals Inc. 1 $17.35

By nature of payment

Food and Beverage
$330
Education
$81

Frequently asked questions

Auto-generated from federal data
What is Dr. Darren Klawinski's medical specialty?
Dr. Darren Klawinski practices Pediatric Hematology & Oncology Physician in Jacksonville, FL.
Where does Dr. Darren Klawinski practice?
Dr. Darren Klawinski practices at 807 Childrens Way, Jacksonville, FL 322078426. Office phone: 9046973600.
What is Dr. Darren Klawinski's NPI?
Dr. Darren Klawinski's National Provider Identifier (NPI) is 1457763096, issued by NPPES.