NPI Lookup · Medicare billing profile

David Warrow, M.D.

Ophthalmology Physician · Hagerstown, MD · NPI 1275776049. Below: what a registry shows, plus the 2024 Medicare billing context no registry clone carries.

$20.4M
Est. Medicare paid, 2024
6,701,179
Services billed, 2024
34
Distinct codes billed, 2024
2024
Latest CMS data year

Registry record (NPPES)

NPI1275776049
TypeIndividual clinician
SpecialtyOphthalmology Physician
Practice address1800 Dual Hwy
City / State / ZIPHagerstown, MD 21740

Top billed codes (2024)

J2403Chloroprocaine hcl ophthalmic, 3% gel, 1 mg6,486,401 · $3.3M
J2777Injection, faricimab-svoa, 0.1 mg71,940 · $2.0M
J2781Injection, pegcetacoplan, intravitreal, 1 mg66,975 · $7.8M
Q5124Injection, ranibizumab-nuna, biosimilar, (byooviz), 0.1 mg30,740 · $4.1M
92134Imaging of retina9,007 · $268K

Top 5 of 34 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: Harrow Eye, LLC · Apellis Pharmaceuticals, Inc. · Mallinckrodt Hospital Products Inc. · Genentech USA, Inc. · Neurotech Pharmaceuticals, Inc. · and 7 more.

Also appears in Open Payments research records (funding associated with studies, not personal payments).

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)

Ofloxacin361 claims
Prednisolone Acetate323 claims
Dorzolamide Hcl/Timolol Maleat158 claims
Brimonidine Tartrate101 claims
Ketorolac Tromethamine84 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 David Warrow 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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