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

STEFAN K BARTA

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1336384130
CMS profile
15035
Location
PHILADELPHIA, PA

General Payments · PY2018–2024

$59,744.00

  • Reported across 51 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$8,268.99

12 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
Janssen Research & Development, LLC $3,100.00 2
Acrotech Biopharma Inc. $2,915.18 3
E.R. Squibb & Sons, L.L.C. $1,779.00 1
Kyowa Kirin, Inc. $411.83 5
PFIZER INC. $62.98 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,959.69 2
PY2019 $4,479.83 4
PY2020 $7,751.10 5
PY2021 $6,515.00 2
PY2022 $20,590.57 20
PY2023 $10,178.82 6
PY2024 $8,268.99 12

Payment records · PY2024 (12)

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
Acrotech Biopharma Inc. $40.18 03/14/2024 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 1147104628 CMS
Acrotech Biopharma Inc. $2,550.00 03/14/2024 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 1147104630 CMS
Acrotech Biopharma Inc. $325.00 09/20/2024 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 1147104632 CMS
E.R. Squibb & Sons, L.L.C. $1,779.00 03/05/2024 Consulting Fee Undisputed 01/23/2026 1101628244 CMS
Janssen Research & Development, LLC $1,860.00 06/18/2024 Consulting Fee Undisputed 01/23/2026 1077589675 CMS
Janssen Research & Development, LLC $1,240.00 12/18/2024 Consulting Fee Undisputed 01/23/2026 1077589677 CMS
Kyowa Kirin, Inc. $36.10 02/22/2024 Food and Beverage Undisputed 01/23/2026 1127043453 CMS
Kyowa Kirin, Inc. $93.71 03/08/2024 Food and Beverage Undisputed 01/23/2026 1127043451 CMS
Kyowa Kirin, Inc. $96.75 06/07/2024 Food and Beverage Undisputed 01/23/2026 1127043455 CMS
Kyowa Kirin, Inc. $139.92 09/05/2024 Food and Beverage Undisputed 01/23/2026 1127043457 CMS
Kyowa Kirin, Inc. $45.35 12/09/2024 Food and Beverage Undisputed 01/23/2026 1127043459 CMS
PFIZER INC. $62.98 06/06/2024 Food and Beverage Undisputed 01/23/2026 1131317422 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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