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

RICARDO A TAN

Allopathic & Osteopathic Physicians Allergy & Immunology Allergy

NPI
1255353629
CMS profile
193091
Location
LOS ANGELES, 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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General Payments · PY2025 · Entire year

$4,003.38

135 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

Nature of paymentAmountRecords
Food and Beverage $3,112.27 128
Travel and Lodging $860.31 5
Consulting Fee $15.80 1
Education $15.00 1

By paying entity

PY2025 · entire year · sorted by reported total

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

135 matching records · $4,003.38 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 135 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 135.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Ionis Pharmaceuticals, Inc. $33.2512/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246792557 CMS
Genentech USA, Inc. $25.7512/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261211574022 CMS
GlaxoSmithKline, LLC. $26.1512/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261191061778 CMS
CSL Behring $25.0012/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261232349698 CMS
ARS Pharmaceuticals Operations, Inc. $19.2112/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261245895014 CMS
ALK-Abello, Inc $23.6212/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261222416126 CMS
CSL Behring $33.3412/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261232349692 CMS
CSL Behring $8.1612/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261232349694 CMS
BioCryst US Sales Co., LLC $13.5812/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261222009356 CMS
Novartis Pharmaceuticals Corporation $25.0012/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200417909 CMS
CSL Behring $6.7112/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261232349688 CMS
Cycle Pharmaceuticals Inc $33.8811/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261248900825 CMS
PFIZER INC. $9.6311/20/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261229308804 CMS
GlaxoSmithKline, LLC. $28.2511/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190972734 CMS
Octapharma USA, Inc. $38.7711/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261245084091 CMS
BioCryst US Sales Co., LLC $25.9211/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261222023166 CMS
Ionis Pharmaceuticals, Inc. $8.6111/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246792555 CMS
PFIZER INC. $26.0611/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261229306996 CMS
CSL Behring $13.8511/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261232349684 CMS
CSL Behring $6.3511/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261232349682 CMS
Pharming Healthcare, Inc. $25.0411/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200803856 CMS
Ionis Pharmaceuticals, Inc. $28.5911/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246792553 CMS
PFIZER INC. $9.2511/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261229785938 CMS
GENZYME CORPORATION $44.3010/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261233271259 CMS
Novartis Pharmaceuticals Corporation $31.7910/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200389244 CMS
Novartis Pharmaceuticals Corporation $30.2410/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200389242 CMS
PFIZER INC. $23.0910/27/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261229405122 CMS
Regeneron Healthcare Solutions, Inc. $25.8510/27/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261213055866 CMS
Novartis Pharmaceuticals Corporation $25.7910/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200389256 CMS
AstraZeneca Pharmaceuticals LP $21.0810/20/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206351479 CMS
Regeneron Healthcare Solutions, Inc. $37.6010/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261213055864 CMS
Novartis Pharmaceuticals Corporation $27.7110/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200389234 CMS
Ionis Pharmaceuticals, Inc. $11.4710/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246792551 CMS
Novartis Pharmaceuticals Corporation $24.0710/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200389236 CMS
ALK-Abello, Inc $19.0210/06/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261222416124 CMS
Lilly USA, LLC $24.1610/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186845941 CMS
AstraZeneca Pharmaceuticals LP $19.2410/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206398811 CMS
Ionis Pharmaceuticals, Inc. $32.6809/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246792549 CMS
Novartis Pharmaceuticals Corporation $396.8209/26/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/20261200389262 CMS
Novartis Pharmaceuticals Corporation $219.3909/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200389264 CMS
Novartis Pharmaceuticals Corporation $282.4809/26/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/20261200389266 CMS
Novartis Pharmaceuticals Corporation $40.3709/26/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/20261200389268 CMS
GENZYME CORPORATION $44.3009/24/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261233271157 CMS
Ionis Pharmaceuticals, Inc. $31.7109/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246792547 CMS
Cycle Pharmaceuticals Inc $35.9909/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261248900823 CMS
Galderma Laboratories, L.P. $15.5609/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261234709378 CMS
BioCryst US Sales Co., LLC $38.7309/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261222005757 CMS
Regeneron Healthcare Solutions, Inc. $11.5409/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261213055862 CMS
AstraZeneca Pharmaceuticals LP $25.7809/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206388627 CMS
Regeneron Healthcare Solutions, Inc. $22.1609/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261213055860 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $4,134.94 80
PY2020 $1,654.40 76
PY2021 $2,257.30 93
PY2022 $1,797.64 75
PY2023 $2,043.49 93
PY2024 $2,203.20 104
PY2025 $4,003.38 135

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
RICARDO A TAN, NPI 1255353629. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1255353629.
APA 7
IndustryPayments. (2026). RICARDO A TAN, NPI 1255353629 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1255353629
Bluebook
RICARDO A TAN, NPI 1255353629, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1255353629.

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