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

RON DUNCHOK

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1356331730
CMS profile
333089
Location
SAN DIMAS, CA

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.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2020 · Entire year

$700.74

39 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

PY2020 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $700.74 39

By paying entity

PY2020 · entire year · sorted by reported total

Page 1 of 1; records 1–39 of 39 matching records. This page contains 39 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

RON DUNCHOK

NPI 1356331730 · CMS profile ID 333089

Allopathic & Osteopathic Physicians / Internal Medicine

SAN DIMAS, CA

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.

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.

General Payments, PY2020; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 1; records 1–39 of 39 matching records. This page contains 39 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1356331730?year=2020&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
RON DUNCHOK, NPI 1356331730, CMS profile ID 333089. General Payments, PY2020; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 1; records 1–39 of 39 matching records. This page contains 39 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1356331730?year=2020&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019.
APA 7
IndustryPayments. (2026). RON DUNCHOK, NPI 1356331730, CMS profile ID 333089. General Payments, PY2020; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 1; records 1–39 of 39 matching records. This page contains 39 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1356331730?year=2020&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019.
Bluebook
RON DUNCHOK, NPI 1356331730, CMS profile ID 333089, IndustryPayments, General Payments, PY2020; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 1; records 1–39 of 39 matching records. This page contains 39 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019. https://industrypayments.org/provider/npi-1356331730?year=2020&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

Payment records · PY2020

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

General Payments · PY2020 · Physicians and non-physician practitioners · CMS publication 2026-06-30

39 matching records · $700.74 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 39 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 1–39 of 39.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Eisai Inc. $22.7712/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 751245099 CMS
PFIZER INC. $15.7212/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743635819 CMS
AbbVie Inc. $18.3112/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 721760019 CMS
PFIZER INC. $15.6412/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743799073 CMS
Janssen Pharmaceuticals, Inc $16.4412/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 719392099 CMS
Lilly USA, LLC $21.9712/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 728619469 CMS
Janssen Pharmaceuticals, Inc $14.2812/02/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 719392097 CMS
Teva Pharmaceuticals USA, Inc. $12.4112/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 749542965 CMS
Janssen Pharmaceuticals, Inc $21.8511/19/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 719392101 CMS
AbbVie Inc. $18.9811/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 721760015 CMS
Lilly USA, LLC $18.0311/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 728612811 CMS
Amarin Pharma Inc. $24.1111/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 740088993 CMS
PFIZER INC. $15.5410/28/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743783499 CMS
Teva Pharmaceuticals USA, Inc. $11.7510/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 749542987 CMS
PFIZER INC. $20.3410/20/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743481958 CMS
PFIZER INC. $21.8710/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743782703 CMS
Lilly USA, LLC $23.5510/08/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 728606387 CMS
Janssen Pharmaceuticals, Inc $15.2109/25/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 719392095 CMS
PFIZER INC. $16.6209/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743770343 CMS
PFIZER INC. $19.6609/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743772573 CMS
PFIZER INC. $16.5708/19/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743755231 CMS
Lilly USA, LLC $13.8008/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 728609437 CMS
Lilly USA, LLC $16.0208/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 728619467 CMS
PFIZER INC. $22.8008/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743755229 CMS
Abbott Laboratories $22.9507/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746592151 CMS
PFIZER INC. $18.2107/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743216509 CMS
PFIZER INC. $15.8107/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743747815 CMS
Sunovion Pharmaceuticals Inc. $20.8307/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748428107 CMS
PFIZER INC. $21.9107/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743747817 CMS
Novo Nordisk Inc $23.6606/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 744769141 CMS
PFIZER INC. $16.8906/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743736661 CMS
PFIZER INC. $14.5006/08/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743736663 CMS
PFIZER INC. $17.9803/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743116029 CMS
PFIZER INC. $4.8303/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743670147 CMS
Amgen Inc. $24.8302/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 741291575 CMS
Novartis Pharmaceuticals Corporation $22.3302/19/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 725703987 CMS
PFIZER INC. $15.6401/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743646449 CMS
PFIZER INC. $6.7201/28/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743669999 CMS
Novartis Pharmaceuticals Corporation $19.4101/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 725703983 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $793.12 58
PY2020 $700.74 39
PY2021 $719.50 36
PY2022 $702.86 31
PY2023 $42.02 2

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
Source files and profile matching
Source files
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023
Generated from
OP_DTL_GNRL_PGYR2023_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.