Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

MEHMET ALTAN

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1164755930
CMS profile
1373097
Location
HOUSTON, TX

General Payments · PY2018–2024

$52,616.26

  • Reported across 34 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$28,548.86

17 records · 0 disputed

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
GlaxoSmithKline, LLC. $15,883.71 5
TAIHO ONCOLOGY, INC. $5,285.55 6
E.R. Squibb & Sons, L.L.C. $3,900.00 1
Regeneron Pharmaceuticals, Inc. $3,479.60 5

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $100.14 1
PY2019 $73.00 1
PY2020 $7,150.00 1
PY2021 $7,127.50 3
PY2022 $4,684.76 5
PY2023 $4,932.00 6
PY2024 $28,548.86 17

Payment records · PY2024 (17)

Sorted by paying entity, then date · as published by CMS

Program year 2024 201820192020202120222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
E.R. Squibb & Sons, L.L.C. $3,900.00 01/24/2024 Consulting Fee Undisputed 01/23/2026 1101555613 CMS
GlaxoSmithKline, LLC. $2,600.00 03/06/2024 Consulting Fee Undisputed 01/23/2026 1116689847 CMS
GlaxoSmithKline, LLC. $10,725.00 05/23/2024 Consulting Fee Undisputed 01/23/2026 1116146276 CMS
GlaxoSmithKline, LLC. $120.60 06/01/2024 Food and Beverage Undisputed 01/23/2026 1116369573 CMS
GlaxoSmithKline, LLC. $8.40 06/01/2024 Food and Beverage Undisputed 01/23/2026 1116376114 CMS
GlaxoSmithKline, LLC. $2,429.71 08/13/2024 Consulting Fee Undisputed 01/23/2026 1116226986 CMS
Regeneron Pharmaceuticals, Inc. $151.60 09/08/2024 Food and Beverage Undisputed 01/23/2026 1114395948 CMS
Regeneron Pharmaceuticals, Inc. $832.00 10/10/2024 Consulting Fee Undisputed 01/23/2026 1114395950 CMS
Regeneron Pharmaceuticals, Inc. $832.00 10/10/2024 Consulting Fee Undisputed 01/23/2026 1114395952 CMS
Regeneron Pharmaceuticals, Inc. $832.00 12/13/2024 Consulting Fee Undisputed 01/23/2026 1114395954 CMS
Regeneron Pharmaceuticals, Inc. $832.00 12/13/2024 Consulting Fee Undisputed 01/23/2026 1114395956 CMS
TAIHO ONCOLOGY, INC. $622.95 08/30/2024 Travel and Lodging Undisputed 01/23/2026 1137943965 CMS
TAIHO ONCOLOGY, INC. $144.10 09/30/2024 Food and Beverage Undisputed 01/23/2026 1137938060 CMS
TAIHO ONCOLOGY, INC. $3,000.00 09/30/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1137941810 CMS
TAIHO ONCOLOGY, INC. $1,200.00 10/31/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1137934343 CMS
TAIHO ONCOLOGY, INC. $66.60 10/31/2024 Travel and Lodging Undisputed 01/23/2026 1137938862 CMS
TAIHO ONCOLOGY, INC. $251.90 10/31/2024 Travel and Lodging Undisputed 01/23/2026 1137943243 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.