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

MICHAEL H BASS

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1841451580
CMS profile
871216
Location
WILMINGTON, DE

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 · PY2019 · Entire year

$3,436.14

69 records · 0 disputed

Summary and payment records

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

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“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

PY2019 · entire year · sorted by reported total

By paying entity

PY2019 · entire year · sorted by reported total

Page 1 of 2; records 1–50 of 69 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

MICHAEL H BASS

NPI 1841451580 · CMS profile ID 871216

Allopathic & Osteopathic Physicians / Internal Medicine / Gastroenterology

WILMINGTON, DE

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, PY2019; 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 2; records 1–50 of 69 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1841451580?year=2019&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e

Cite these filtered records

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

Plain
MICHAEL H BASS, NPI 1841451580, CMS profile ID 871216. General Payments, PY2019; 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 2; records 1–50 of 69 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1841451580?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). MICHAEL H BASS, NPI 1841451580, CMS profile ID 871216. General Payments, PY2019; 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 2; records 1–50 of 69 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1841451580?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
MICHAEL H BASS, NPI 1841451580, CMS profile ID 871216, IndustryPayments, General Payments, PY2019; 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 2; records 1–50 of 69 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/provider/npi-1841451580?year=2019&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 · PY2019

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

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

69 matching records · $3,436.14 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 69 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 69.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Intercept Pharmaceuticals, Inc. $20.3812/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 702064247 CMS
Takeda Pharmaceuticals U.S.A., Inc. $5.4612/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681991031 CMS
AbbVie, Inc. $21.2812/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648130749 CMS
Takeda Pharmaceuticals U.S.A., Inc. $22.8412/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681809017 CMS
Takeda Pharmaceuticals U.S.A., Inc. $18.5912/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681745719 CMS
Allergan Inc. $1.9311/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091341 CMS
VIVUS, Inc. $19.4011/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694563509 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $19.2311/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684644009 CMS
Allergan Inc. $10.4710/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091335 CMS
Allergan Inc. $2.0010/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091339 CMS
Janssen Biotech, Inc. $16.1510/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658322653 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $11.5810/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684644007 CMS
AbbVie, Inc. $9.5010/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648130763 CMS
Allergan Inc. $1.9310/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091329 CMS
Allergan Inc. $2,000.0010/15/2019 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
06/30/2026 670091331 CMS
Allergan Inc. $200.0010/02/2019 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
06/30/2026 670091325 CMS
Allergan Inc. $7.8809/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091317 CMS
Allergan Inc. $2.6509/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091321 CMS
Intercept Pharmaceuticals, Inc. $21.0909/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 702064241 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $15.0709/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684644003 CMS
AbbVie, Inc. $9.5009/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648130771 CMS
AbbVie, Inc. $6.3708/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648130769 CMS
Takeda Pharmaceuticals U.S.A., Inc. $1.6108/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681808567 CMS
Takeda Pharmaceuticals U.S.A., Inc. $4.0608/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681992399 CMS
Takeda Pharmaceuticals U.S.A., Inc. $11.5908/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682093903 CMS
AbbVie, Inc. $9.9908/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648130761 CMS
AbbVie, Inc. $15.0007/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648130759 CMS
Janssen Biotech, Inc. $12.5007/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658322641 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $22.9407/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684644001 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.2107/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684643997 CMS
Takeda Pharmaceuticals U.S.A., Inc. $20.8907/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682086919 CMS
Gilead Sciences, Inc. $17.3707/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681478399 CMS
Allergan Inc. $200.0006/25/2019 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
06/30/2026 670091311 CMS
Allergan Inc. $200.0006/25/2019 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
06/30/2026 670091315 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $18.4706/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684643989 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $23.5306/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684643993 CMS
AbbVie, Inc. $7.6306/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648130757 CMS
Allergan Inc. $2.9606/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091307 CMS
Allergan Inc. $11.3305/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091299 CMS
Allergan Inc. $4.8805/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091303 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $16.6105/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684643985 CMS
AbbVie, Inc. $10.4304/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648130755 CMS
Allergan Inc. $2.6604/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091297 CMS
Janssen Biotech, Inc. $12.9104/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658322623 CMS
Braintree Laboratories, Inc. $11.2004/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703852395 CMS
AbbVie, Inc. $13.1004/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648130767 CMS
AbbVie, Inc. $9.6204/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648130753 CMS
Allergan Inc. $8.1304/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091293 CMS
Allergan Inc. $11.3004/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091289 CMS
Allergan Inc. $1.8003/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670091285 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $3,436.14 69
PY2020 $406.61 7
PY2021 $3,177.77 33
PY2022 $2,060.52 27
PY2023 $330.85 21
PY2024 $667.13 40
PY2025 $1,041.35 46

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.