NPI Lookup · Medicare billing profile

Rebecca Kosloff, MD

Hematology (Internal Medicine) Physician · Bonita Springs, FL · NPI 1376500769. Below: what a registry shows, plus the 2024 Medicare billing context no registry clone carries.

$3.4M
Est. Medicare paid, 2024
313,161
Services billed, 2024
63
Distinct codes billed, 2024
2024
Latest CMS data year

Registry record (NPPES)

NPI1376500769
TypeIndividual clinician
SpecialtyHematology (Internal Medicine) Physician
Practice address9776 Bonita Beach Rd Se
City / State / ZIPBonita Springs, FL 34135

Top billed codes (2024)

Q0138Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use)70,380 · $20K
J9025Injection, azacitidine, 1 mg31,800 · $9K
J1442Injection, filgrastim (g-csf), excludes biosimilars, 1 microgram24,960 · $19K
J9299Injection, nivolumab, 1 mg24,740 · $610K
Q5110Injection, filgrastim-aafi, biosimilar, (nivestym), 1 microgram21,480 · $5K

Top 5 of 63 codes billed in 2024. Services · est. Medicare paid. The full list is one search in the app.

Reported industry relationships (2025)

Manufacturers with disclosed Open Payments records naming this provider in 2025: Novartis Pharmaceuticals Corporation · PFIZER INC. · ABBVIE INC. · Merck Sharp & Dohme LLC · Astellas Pharma US Inc · and 31 more.

A payment record is a disclosed relationship under the Sunshine Act, not evidence this provider uses a product. Detail is in the app.

Part D prescribing (2024)

Letrozole216 claims
Lenalidomide120 claims
Acyclovir84 claims
Famotidine84 claims
Ondansetron55 claims

Top 5 drugs by Medicare Part D claim count. Drug-year lines under 11 claims are suppressed by CMS, so this understates low-volume prescribing.

This is the public slice. Year-over-year history, every code, payment detail, group affiliations, and phone numbers for Rebecca Kosloff are one search in Prospect 811.

Where this data comes from. Provider identity, specialty, and practice location come from CMS's public NPPES registry (the National Plan & Provider Enumeration System), the official record of every NPI ever issued. Deactivated NPIs are excluded. Addresses are what the provider filed and can lag a move. Where a profile shows Medicare context, it comes from CMS's public utilization, Part D, and Open Payments files: traditional Medicare fee-for-service only, and CMS suppresses any provider-and-code line under 11 beneficiaries before publishing. An Open Payments record is a disclosed relationship, not evidence a clinician uses a product. Prospect 811 organizes public data; it doesn't add to or alter it. Not affiliated with or endorsed by CMS. Full detail on the data page.

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