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

SHAWN HASSLER

Allopathic & Osteopathic Physicians Internal Medicine Infectious Disease

NPI
1427122928
CMS profile
291581
Location
SAN FRANCISCO, 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.

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Filter and download payment records

General Payments · PY2025 · Entire year

$64,622.36

246 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

PY2025 · entire year · sorted by reported total

By paying entity

PY2025 · entire year · sorted by reported total

Page 1 of 5; records 1–50 of 246 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

SHAWN HASSLER

NPI 1427122928 · CMS profile ID 291581

Allopathic & Osteopathic Physicians / Internal Medicine / Infectious Disease

SAN FRANCISCO, 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, PY2025; 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 5; records 1–50 of 246 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1427122928?year=2025&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e

Cite these filtered records

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

Plain
SHAWN HASSLER, NPI 1427122928, CMS profile ID 291581. General Payments, PY2025; 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 5; records 1–50 of 246 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1427122928?year=2025&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
APA 7
IndustryPayments. (2026). SHAWN HASSLER, NPI 1427122928, CMS profile ID 291581. General Payments, PY2025; 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 5; records 1–50 of 246 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1427122928?year=2025&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
Bluebook
SHAWN HASSLER, NPI 1427122928, CMS profile ID 291581, IndustryPayments, General Payments, PY2025; 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 5; records 1–50 of 246 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e. https://industrypayments.org/provider/npi-1427122928?year=2025&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 · PY2025

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

General Payments · PY2025 · Physicians and non-physician practitioners · CMS publication 2026-06-30

246 matching records · $64,622.36 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 246 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 246.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
EMD Serono, Inc. $10.9212/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1236916056 CMS
Napo Pharmaceuticals Inc $10.3912/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223619600 CMS
Napo Pharmaceuticals Inc $925.0012/17/2025 Compensation for serving as faculty or as a speaker for a medical education program No dispute reported Delay: No
Change: NEW
06/30/2026 1225172013 CMS
EMD Serono, Inc. $38.1912/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1236878325 CMS
Gilead Sciences, Inc. $32.7112/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1234425300 CMS
Antares Pharma, Inc. $19.9412/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1235887550 CMS
ViiV Healthcare Company $23.8312/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189582950 CMS
Gilead Sciences, Inc. $2,450.0012/09/2025 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: NEW
06/30/2026 1234356400 CMS
ViiV Healthcare Company $6.9212/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189574659 CMS
ViiV Healthcare Company $32.2712/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189616868 CMS
Gilead Sciences, Inc. $30.0012/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1234437742 CMS
Takeda Pharmaceuticals U.S.A., Inc. $17.0112/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223832939 CMS
Gilead Sciences, Inc. $27.8512/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1234452496 CMS
Gilead Sciences, Inc. $34.4012/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1234418629 CMS
EMD Serono, Inc. $10.7611/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1236880988 CMS
Merck Sharp & Dohme LLC $37.1611/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1237993100 CMS
Antares Pharma, Inc. $28.0111/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1235887548 CMS
Gilead Sciences, Inc. $490.0011/21/2025 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: NEW
06/30/2026 1234360279 CMS
Gilead Sciences, Inc. $29.9111/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1234438631 CMS
Gilead Sciences, Inc. $490.0011/20/2025 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: NEW
06/30/2026 1234360277 CMS
Lilly USA, LLC $15.7911/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1186864203 CMS
ABBVIE INC. $13.5711/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1202018280 CMS
Gilead Sciences, Inc. $29.1311/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1234443589 CMS
EMD Serono, Inc. $35.0011/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1236874354 CMS
Novo Nordisk Inc $23.4111/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189078856 CMS
Theratechnologies Inc. $46.3711/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1226373781 CMS
ViiV Healthcare Company $30.2111/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189591743 CMS
TOLMAR, INC. $24.2611/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1237023288 CMS
ViiV Healthcare Company $0.6311/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189537840 CMS
ViiV Healthcare Company $2.5011/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189554638 CMS
ViiV Healthcare Company $30.1211/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189571889 CMS
Gilead Sciences, Inc. $30.8011/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1234433682 CMS
Gilead Sciences, Inc. $612.5011/06/2025 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: NEW
06/30/2026 1234359747 CMS
Napo Pharmaceuticals Inc $18.5711/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223619448 CMS
Takeda Pharmaceuticals U.S.A., Inc. $17.1511/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223833949 CMS
ViiV Healthcare Company $2,600.0011/03/2025 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: NEW
06/30/2026 1189531838 CMS
Gilead Sciences, Inc. $24.6911/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1234477540 CMS
EMD Serono, Inc. $10.8010/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1236891909 CMS
ViiV Healthcare Company $21.3110/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189514408 CMS
ViiV Healthcare Company $0.4910/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189604707 CMS
ViiV Healthcare Company $6.9110/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189606617 CMS
Gilead Sciences, Inc. $76.0010/27/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/2026 1234371649 CMS
Napo Pharmaceuticals Inc $7,106.2610/27/2025 Compensation for serving as faculty or as a speaker for a medical education program No dispute reported Delay: No
Change: NEW
06/30/2026 1225172011 CMS
ViiV Healthcare Company $25.7610/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189602057 CMS
ViiV Healthcare Company $29.6810/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1189612017 CMS
Gilead Sciences, Inc. $490.0010/17/2025 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: NEW
06/30/2026 1234360275 CMS
Antares Pharma, Inc. $26.3310/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1235887546 CMS
Gilead Sciences, Inc. $8.9310/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1234589304 CMS
Theratechnologies Inc. $119.9410/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1226373713 CMS
Theratechnologies Inc. $2,000.0010/15/2025 Honoraria No dispute reported Delay: No
Change: NEW
06/30/2026 1226373718 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $107,860.28 320
PY2020 $31,069.79 96
PY2021 $31,002.22 102
PY2022 $54,312.10 157
PY2023 $79,317.32 195
PY2024 $64,995.55 213
PY2025 $64,622.36 246

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.