Darren Klawinski, MD
NPI 1457763096 · Pediatric Hematology & Oncology Physician · Jacksonville, FL
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darren Klawinski, MD is a Pediatric Hematology & Oncology Physician provider in Jacksonville, FL (NPI 1457763096).
Provider details
- NPI number
- 1457763096
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME131091 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
12 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$411 across 17 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 700 Childrens Dr # Drive5Columbus, OH 43205-2664Phone: (614) 722-3550Fax: (614) 722-3369
Registry dates
- Enumerated
- 2014-06-02
- Last updated
- 2021-08-27
- Certified
- 2021-08-27
Frequently asked questions
- What is Darren Klawinski's NPI number?
- Darren Klawinski's National Provider Identifier (NPI) is 1457763096, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darren Klawinski's specialty?
- Darren Klawinski is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Darren Klawinski located?
- Darren Klawinski's practice location on file with NPPES is 807 Childrens Way, Jacksonville, FL 32207-8426.
- What is Darren Klawinski's phone number?
- The practice phone number listed in the NPPES registry for Darren Klawinski is (904) 697-3600.
- Does Darren Klawinski accept Medicare?
- Darren Klawinski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darren Klawinski's NPI active?
- Yes — Darren Klawinski's NPI (1457763096) is active in the NPPES registry as of the last update on 2021-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.