NPI Lookup · Medicare billing profile

Mei Tang, MD

Medical Oncology Physician · Baltimore, MD · NPI 1457495483. Below: what a registry shows, plus the 2024 Medicare billing context no registry clone carries.

$7.2M
Est. Medicare paid, 2024
346,937
Services billed, 2024
64
Distinct codes billed, 2024
2024
Latest CMS data year

Registry record (NPPES)

NPI1457495483
TypeIndividual clinician
SpecialtyMedical Oncology Physician
Practice address6569 N Charles St Ste 201
City / State / ZIPBaltimore, MD 21204

Top billed codes (2024)

J9271Injection, pembrolizumab, 1 mg76,400 · $3.1M
J1453Injection, fosaprepitant, 1 mg39,300 · $4K
J9144Injection, daratumumab, 10 mg and hyaluronidase-fihj34,200 · $1.3M
J9299Injection, nivolumab, 1 mg33,170 · $668K
J9263Injection, oxaliplatin, 0.5 mg31,426 · $2K

Top 5 of 64 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: AstraZeneca Pharmaceuticals LP · Grifols Shared Services North America, Inc. · Janssen Biotech, Inc. · ABBVIE INC. · Exelixis Inc. · and 19 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)

Prochlorperazine Maleate67 claims
Apixaban66 claims
Zanubrutinib54 claims
Anastrozole41 claims
Acyclovir40 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 Mei Tang 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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