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

CATHERINE DIEFENBACH

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1982864039
CMS profile
181310
Location
NEW YORK, NY

General Payments · PY2018–2024

$92,117.94

  • Reported across 147 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$11,939.73

15 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

Nature of paymentAmountRecords
Consulting Fee $10,192.50 4
Travel and Lodging $1,117.79 3
Food and Beverage $629.44 8

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
ABBVIE INC. $6,322.84 6
Acerta Pharma LLC $2,740.00 1
Kite Pharma, Inc. $2,390.00 1
Genentech USA, Inc. $162.40 2
PFIZER INC. $160.05 2
E.R. Squibb & Sons, L.L.C. $86.44 2
BeiGene USA, Inc. $78.00 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $14,917.74 29
PY2019 $26,940.07 39
PY2020 $6,425.00 32
PY2021 $10,394.96 7
PY2022 $10,513.53 12
PY2023 $10,986.91 13
PY2024 $11,939.73 15

Payment records · PY2024 (15)

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
ABBVIE INC. $142.55 06/02/2024 Food and Beverage Undisputed 01/23/2026 1103640716 CMS
ABBVIE INC. $374.51 06/02/2024 Travel and Lodging Undisputed 01/23/2026 1104183276 CMS
ABBVIE INC. $536.20 06/03/2024 Travel and Lodging Undisputed 01/23/2026 1104183278 CMS
ABBVIE INC. $4,387.50 07/01/2024 Consulting Fee Undisputed 01/23/2026 1103133671 CMS
ABBVIE INC. $207.08 07/01/2024 Travel and Lodging Undisputed 01/23/2026 1104183280 CMS
ABBVIE INC. $675.00 08/21/2024 Consulting Fee Undisputed 01/23/2026 1103133673 CMS
AstraZeneca Pharmaceuticals LP $2,740.00 01/12/2024 Consulting Fee Undisputed 01/23/2026 1105394599 CMS
BeiGene USA, Inc. $78.00 12/07/2024 Food and Beverage Undisputed 01/23/2026 1120851282 CMS
E.R. Squibb & Sons, L.L.C. $59.43 12/06/2024 Food and Beverage Undisputed 01/23/2026 1101439620 CMS
E.R. Squibb & Sons, L.L.C. $27.01 12/06/2024 Food and Beverage Undisputed 01/23/2026 1101439622 CMS
Genentech USA, Inc. $71.63 12/07/2024 Food and Beverage Undisputed 01/23/2026 1132985199 CMS
Genentech USA, Inc. $90.77 12/07/2024 Food and Beverage Undisputed 01/23/2026 1132985203 CMS
Kite Pharma, Inc. $2,390.00 06/13/2024 Consulting Fee Undisputed 01/23/2026 1128609575 CMS
PFIZER INC. $85.48 10/26/2024 Food and Beverage Undisputed 01/23/2026 1131363031 CMS
PFIZER INC. $74.57 12/06/2024 Food and Beverage Undisputed 01/23/2026 1131393900 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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