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

Reflects CMS Open Payments as of 2026-07-26T04:22:22Z. 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 ↗

Covered recipient · General Payments record

STEPHEN W HALPERN

Allopathic & Osteopathic Physicians Internal Medicine Cardiovascular Disease

NPI
1821160599
CMS profile
310128
Location
SANTA ROSA, 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.

General Payments · PY2019–2025

  • CMS publication 2026-06-30

Latest program year · PY2025

$1,625.46

64 records · 0 disputed

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.
  • Featured-page threshold (a presentation gate, not a judgment): (records>=3 OR total>=100) AND records>=2 AND NPI identity (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,585.02 62
Education $40.44 2

By paying entity

PY2025 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,946.59 113
PY2020 $640.24 37
PY2021 $1,131.29 50
PY2022 $1,500.89 54
PY2023 $1,916.47 68
PY2024 $2,618.33 96
PY2025 $1,625.46 64

Payment records · PY2025 (64)

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

Program year 2025 201920202021202220232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
PFIZER INC. $6.01 12/30/2025 Food and Beverage No dispute reported 06/30/2026 1229404068 CMS
Boston Scientific Corporation $86.80 12/19/2025 Food and Beverage No dispute reported 06/30/2026 1181410152 CMS
Novartis Pharmaceuticals Corporation $27.17 11/17/2025 Food and Beverage No dispute reported 06/30/2026 1200280478 CMS
AstraZeneca Pharmaceuticals LP $19.98 11/13/2025 Food and Beverage No dispute reported 06/30/2026 1206417808 CMS
Merck Sharp & Dohme LLC $23.34 11/11/2025 Food and Beverage No dispute reported 06/30/2026 1238179807 CMS
Abbott Laboratories $25.68 10/31/2025 Food and Beverage No dispute reported 06/30/2026 1240675848 CMS
Esperion Therapeutics, Inc. $20.88 10/23/2025 Food and Beverage No dispute reported 06/30/2026 1243960684 CMS
SCPHARMACEUTICALS INC. $24.00 10/20/2025 Food and Beverage No dispute reported 06/30/2026 1228202710 CMS
AstraZeneca Pharmaceuticals LP $18.28 10/16/2025 Food and Beverage No dispute reported 06/30/2026 1206719343 CMS
PFIZER INC. $0.27 10/14/2025 Food and Beverage No dispute reported 06/30/2026 1229709378 CMS
PFIZER INC. $19.33 10/14/2025 Food and Beverage No dispute reported 06/30/2026 1229947487 CMS
Abbott Laboratories $25.83 10/13/2025 Food and Beverage No dispute reported 06/30/2026 1240857727 CMS
BridgeBio Pharma, Inc. $13.68 10/11/2025 Food and Beverage No dispute reported 06/30/2026 1250452378 CMS
Bayer Healthcare Pharmaceuticals Inc. $14.63 10/08/2025 Food and Beverage No dispute reported 06/30/2026 1225565243 CMS
Merck Sharp & Dohme LLC $30.15 10/07/2025 Food and Beverage No dispute reported 06/30/2026 1238043889 CMS
AstraZeneca Pharmaceuticals LP $97.67 10/06/2025 Food and Beverage No dispute reported 06/30/2026 1206391268 CMS
Amgen Inc. $28.81 09/25/2025 Food and Beverage No dispute reported 06/30/2026 1228327554 CMS
Lilly USA, LLC $22.85 09/23/2025 Food and Beverage No dispute reported 06/30/2026 1186908138 CMS
United Therapeutics Corporation $31.42 09/18/2025 Food and Beverage No dispute reported 06/30/2026 1242536252 CMS
Merck Sharp & Dohme LLC $26.90 09/15/2025 Food and Beverage No dispute reported 06/30/2026 1238180211 CMS
Novo Nordisk Inc $11.26 09/11/2025 Food and Beverage No dispute reported 06/30/2026 1205821939 CMS
Esperion Therapeutics, Inc. $21.61 09/10/2025 Food and Beverage No dispute reported 06/30/2026 1243960682 CMS
PFIZER INC. $1.67 09/01/2025 Food and Beverage No dispute reported 06/30/2026 1229413344 CMS
PFIZER INC. $23.72 08/31/2025 Food and Beverage No dispute reported 06/30/2026 1229292254 CMS
PFIZER INC. $20.80 08/21/2025 Food and Beverage No dispute reported 06/30/2026 1229160193 CMS
AstraZeneca Pharmaceuticals LP $14.53 08/19/2025 Food and Beverage No dispute reported 06/30/2026 1206369617 CMS
Edwards Lifesciences Corporation $146.21 08/14/2025 Food and Beverage No dispute reported 06/30/2026 1225264937 CMS
Merck Sharp & Dohme LLC $32.76 08/13/2025 Food and Beverage No dispute reported 06/30/2026 1238353828 CMS
Actelion Pharmaceuticals US, Inc. $15.16 08/11/2025 Food and Beverage No dispute reported 06/30/2026 1174188281 CMS
E.R. Squibb & Sons, L.L.C. $27.16 08/07/2025 Food and Beverage No dispute reported 06/30/2026 1184828193 CMS
Merck Sharp & Dohme LLC $30.23 07/30/2025 Food and Beverage No dispute reported 06/30/2026 1238353830 CMS
Abbott Laboratories $24.59 07/22/2025 Food and Beverage No dispute reported 06/30/2026 1240661187 CMS
Boston Scientific Corporation $47.19 07/21/2025 Food and Beverage No dispute reported 06/30/2026 1181410150 CMS
PFIZER INC. $20.89 07/15/2025 Food and Beverage No dispute reported 06/30/2026 1230038265 CMS
Esperion Therapeutics, Inc. $16.24 07/10/2025 Food and Beverage No dispute reported 06/30/2026 1243960680 CMS
ABIOMED $26.65 07/01/2025 Food and Beverage No dispute reported 06/30/2026 1174470444 CMS
AstraZeneca Pharmaceuticals LP $18.75 06/26/2025 Food and Beverage No dispute reported 06/30/2026 1206335579 CMS
Amgen Inc. $20.85 06/23/2025 Food and Beverage No dispute reported 06/30/2026 1228327556 CMS
Bayer Healthcare Pharmaceuticals Inc. $20.90 06/16/2025 Food and Beverage No dispute reported 06/30/2026 1225565233 CMS
PFIZER INC. $10.42 06/12/2025 Food and Beverage No dispute reported 06/30/2026 1228925104 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $19.53 06/11/2025 Food and Beverage No dispute reported 06/30/2026 1223045458 CMS
Alnylam Pharmaceuticals Inc. $28.16 06/10/2025 Food and Beverage No dispute reported 06/30/2026 1212754679 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $23.28 06/03/2025 Food and Beverage No dispute reported 06/30/2026 1223045468 CMS
E.R. Squibb & Sons, L.L.C. $13.74 05/29/2025 Food and Beverage No dispute reported 06/30/2026 1184828185 CMS
PFIZER INC. $15.89 05/22/2025 Food and Beverage No dispute reported 06/30/2026 1228891149 CMS
Novartis Pharmaceuticals Corporation $15.80 05/19/2025 Food and Beverage No dispute reported 06/30/2026 1200210830 CMS
Merck Sharp & Dohme LLC $25.45 05/15/2025 Food and Beverage No dispute reported 06/30/2026 1238083639 CMS
Edwards Lifesciences Corporation $19.16 05/12/2025 Food and Beverage No dispute reported 06/30/2026 1225264931 CMS
Boston Scientific Corporation $51.68 05/01/2025 Food and Beverage No dispute reported 06/30/2026 1181410148 CMS
Esperion Therapeutics, Inc. $16.24 05/01/2025 Food and Beverage No dispute reported 06/30/2026 1243960678 CMS
AstraZeneca Pharmaceuticals LP $20.07 03/03/2025 Food and Beverage No dispute reported 06/30/2026 1206718549 CMS
PFIZER INC. $20.05 02/26/2025 Food and Beverage No dispute reported 06/30/2026 1231367188 CMS
Bayer Healthcare Pharmaceuticals Inc. $14.46 02/25/2025 Food and Beverage No dispute reported 06/30/2026 1225565237 CMS
Bayer Healthcare Pharmaceuticals Inc. $20.22 02/25/2025 Education No dispute reported 06/30/2026 1225565241 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $23.68 02/11/2025 Food and Beverage No dispute reported 06/30/2026 1223045466 CMS
E.R. Squibb & Sons, L.L.C. $20.73 02/05/2025 Food and Beverage No dispute reported 06/30/2026 1184828143 CMS
Merck Sharp & Dohme LLC $30.79 01/27/2025 Food and Beverage No dispute reported 06/30/2026 1238083641 CMS
Esperion Therapeutics, Inc. $13.85 01/23/2025 Food and Beverage No dispute reported 06/30/2026 1243960676 CMS
AstraZeneca Pharmaceuticals LP $22.06 01/22/2025 Food and Beverage No dispute reported 06/30/2026 1206758440 CMS
Amgen Inc. $14.39 01/21/2025 Food and Beverage No dispute reported 06/30/2026 1227220214 CMS
PFIZER INC. $22.49 01/16/2025 Food and Beverage No dispute reported 06/30/2026 1231316972 CMS
Bayer Healthcare Pharmaceuticals Inc. $15.25 01/09/2025 Food and Beverage No dispute reported 06/30/2026 1225565235 CMS
Bayer Healthcare Pharmaceuticals Inc. $20.22 01/09/2025 Education No dispute reported 06/30/2026 1225565239 CMS
Merck Sharp & Dohme LLC $23.00 01/07/2025 Food and Beverage No dispute reported 06/30/2026 1238226840 CMS

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
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
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
STEPHEN W HALPERN, NPI 1821160599. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1821160599.
APA 7
IndustryPayments. (2026). STEPHEN W HALPERN, NPI 1821160599 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1821160599
Bluebook
STEPHEN W HALPERN, NPI 1821160599, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1821160599.

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