Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

OLEG VOLCHONOK

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1275571945
CMS profile
684467
Location
PHILADELPHIA, PA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2021 · Entire year

$14,749.56

99 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

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

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2021 · entire year · sorted by reported total

By paying entity

PY2021 · entire year · sorted by reported total

Payment records · PY2021

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

99 matching records · $14,749.56 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 99 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 99.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Janssen Biotech, Inc. $19.2312/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788062013 CMS
Gilead Sciences, Inc. $17.6512/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848294981 CMS
Takeda Pharmaceuticals U.S.A., Inc. $10.4912/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026820321621 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $4.1712/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850260197 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $10.4012/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850395417 CMS
Gilead Sciences, Inc. $23.4212/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848294979 CMS
AbbVie Inc. $1,250.0012/02/2021 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211169 CMS
AbbVie Inc. $124.6912/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211171 CMS
AbbVie Inc. $8.4012/02/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211173 CMS
RedHill Biopharma Inc. $12.0811/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026799950775 CMS
EVOKE PHARMA, INC. $16.8811/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026849332727 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $3.1611/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850243707 CMS
Gilead Sciences, Inc. $99.9711/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848294977 CMS
Janssen Biotech, Inc. $19.8211/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788062017 CMS
AbbVie Inc. $1,250.0010/28/2021 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211165 CMS
AbbVie Inc. $11.2010/28/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211167 CMS
Gilead Sciences, Inc. $20.0910/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848294975 CMS
AbbVie Inc. $124.7110/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211163 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $14.4410/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850237701 CMS
VIVUS LLC $14.0210/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026814342263 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $8.8410/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850061103 CMS
Takeda Pharmaceuticals U.S.A., Inc. $3,120.0010/12/2021 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026820321617 CMS
RedHill Biopharma Inc. $26.7710/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026799950773 CMS
Mauna Kea Technologies, Inc. $16.1210/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026836150053 CMS
RedHill Biopharma Inc. $11.1110/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026799950771 CMS
AbbVie Inc. $3.6610/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211161 CMS
AbbVie Inc. $9.8810/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211159 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $12.1710/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850306083 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $7.1409/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026849941215 CMS
Takeda Pharmaceuticals U.S.A., Inc. $124.7209/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026820321613 CMS
Ironwood Pharmaceuticals, Inc $24.8309/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026855113625 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $12.1309/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850163829 CMS
Gilead Sciences, Inc. $1.3309/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848294971 CMS
Gilead Sciences, Inc. $11.1109/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848294973 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $12.6009/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850104055 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $6.7209/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850212587 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $7.4509/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850012267 CMS
AbbVie Inc. $124.0008/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211157 CMS
QOL Medical, LLC $15.4508/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833624253 CMS
AbbVie Inc. $14.2408/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211155 CMS
Takeda Pharmaceuticals U.S.A., Inc. $10.7808/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026820321609 CMS
Takeda Pharmaceuticals U.S.A., Inc. $1,080.0008/11/2021 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026820321605 CMS
Takeda Pharmaceuticals U.S.A., Inc. $20.9408/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026820321601 CMS
AbbVie Inc. $7.8408/03/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211153 CMS
AbbVie Inc. $2,250.0008/02/2021 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211151 CMS
Takeda Pharmaceuticals U.S.A., Inc. $19.1107/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026820321597 CMS
AbbVie Inc. $96.3607/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796211149 CMS
E.R. Squibb & Sons, L.L.C. $124.0007/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783567187 CMS
Gilead Sciences, Inc. $7.4807/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848294967 CMS
Gilead Sciences, Inc. $12.4707/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848294969 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $28,213.52 120
PY2020 $14,977.90 68
PY2021 $14,749.56 99
PY2022 $3,759.29 79
PY2023 $11,126.01 116
PY2024 $25,486.31 135
PY2025 $6,046.98 101

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

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.

Cite this record.

Plain
OLEG VOLCHONOK, NPI 1275571945. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1275571945.
APA 7
IndustryPayments. (2026). OLEG VOLCHONOK, NPI 1275571945 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1275571945
Bluebook
OLEG VOLCHONOK, NPI 1275571945, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1275571945.

Source: Centers for Medicare & Medicaid Services, Open Payments.