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

RONALD TANG

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1609022383
CMS profile
208158
Location
PASADENA, 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 · PY2023 · Entire year

$5,344.02

234 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

PY2023 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $5,274.03 233
Education $69.99 1

By paying entity

PY2023 · entire year · sorted by reported total

Paying entityAmountRecords
Merck Sharp & Dohme LLC $371.78 16
Gilead Sciences, Inc. $276.90 16
Novartis Pharmaceuticals Corporation $274.14 15
Takeda Pharmaceuticals U.S.A., Inc. $266.32 10
Regeneron Healthcare Solutions, Inc. $247.18 9
Mirati Therapeutics, Inc. $234.28 5
E.R. Squibb & Sons, L.L.C. $215.00 12
AstraZeneca Pharmaceuticals LP $214.26 10
Daiichi Sankyo Inc. $199.99 9
PFIZER INC. $186.23 11
Celgene Corporation $171.82 10
Amgen Inc. $164.51 6
Seagen Inc. $164.30 5
GlaxoSmithKline, LLC. $158.61 10
Incyte Corporation $157.53 8
Janssen Scientific Affairs, LLC $144.81 1
Ipsen Biopharmaceuticals, Inc $137.49 6
Boehringer Ingelheim Pharmaceuticals, Inc. $124.72 5
ImmunoGen, Inc. $124.02 5
Janssen Biotech, Inc. $122.90 4
GENZYME CORPORATION $117.82 5
Bayer Healthcare Pharmaceuticals Inc. $112.77 5
PharmaEssentia USA Corporation $97.21 5
Genentech USA, Inc. $93.18 4
Blueprint Medicines Corporation $87.01 3
ARRAY BIOPHARMA INC $81.94 4
Exelixis Inc. $80.46 3
Sumitomo Pharma America, Inc. $74.45 3
Lilly USA, LLC $70.52 3
Karyopharm Therapeutics Inc. $69.01 2
JAZZ PHARMACEUTICALS INC. $59.83 2
BeiGene USA, Inc. $48.87 2
TAIHO ONCOLOGY, INC. $48.77 2
EMD Serono, Inc. $48.23 2
Deciphera Pharmaceuticals Inc. $42.08 2
Stemline Therapeutics Inc. $36.25 2
Alnylam Pharmaceuticals Inc. $33.85 2
Eisai Inc. $31.80 2
AVEO Pharmaceuticals, Inc. $23.79 1
Catalyst Pharmaceuticals, Inc. $22.54 1
SOBI, INC $20.38 1
MorphoSys, US Inc. $19.85 1
Sirtex Medical Inc $17.93 1
VIVUS LLC $16.96 1
Tolmar, Inc. $16.13 1
Astellas Pharma US Inc $15.60 1

Payment records · PY2023

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

General Payments · PY2023 · Physicians and non-physician practitioners · CMS publication 2026-06-30

234 matching records · $5,344.02 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 234 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 234.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Karyopharm Therapeutics Inc. $34.4412/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261056908071 CMS
ImmunoGen, Inc. $26.5312/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261017252137 CMS
Sirtex Medical Inc $17.9312/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261032416727 CMS
Gilead Sciences, Inc. $26.2812/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261025599843 CMS
Novartis Pharmaceuticals Corporation $1.8312/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993358515 CMS
Novartis Pharmaceuticals Corporation $21.0212/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993358517 CMS
AstraZeneca Pharmaceuticals LP $25.8612/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015933997 CMS
Blueprint Medicines Corporation $24.3412/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051272387 CMS
Novartis Pharmaceuticals Corporation $11.3912/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993358521 CMS
Novartis Pharmaceuticals Corporation $6.3812/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993358523 CMS
Incyte Corporation $28.2412/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261044571049 CMS
AstraZeneca Pharmaceuticals LP $32.9812/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261016079247 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $24.4712/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996455265 CMS
Novartis Pharmaceuticals Corporation $31.8012/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993358519 CMS
TAIHO ONCOLOGY, INC. $25.8012/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055230725 CMS
Merck Sharp & Dohme LLC $32.9512/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048477115 CMS
Takeda Pharmaceuticals U.S.A., Inc. $30.7412/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055633405 CMS
Sumitomo Pharma America, Inc. $25.1111/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261030744841 CMS
Ipsen Biopharmaceuticals, Inc $22.2811/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261045457521 CMS
Genentech USA, Inc. $27.6911/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040532633 CMS
ImmunoGen, Inc. $23.4711/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261017252133 CMS
Gilead Sciences, Inc. $26.9811/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261025592335 CMS
Regeneron Healthcare Solutions, Inc. $38.4111/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026999485743 CMS
ARRAY BIOPHARMA INC $23.2611/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049704113 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $30.0211/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996455269 CMS
E.R. Squibb & Sons, L.L.C. $28.5411/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015515309 CMS
PFIZER INC. $24.6111/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049916085 CMS
GlaxoSmithKline, LLC. $21.1411/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003496917 CMS
Regeneron Healthcare Solutions, Inc. $18.9511/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026999485735 CMS
Novartis Pharmaceuticals Corporation $9.3111/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993358513 CMS
EMD Serono, Inc. $31.2611/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261032372515 CMS
GlaxoSmithKline, LLC. $29.8111/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003496719 CMS
E.R. Squibb & Sons, L.L.C. $18.0010/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015515281 CMS
Merck Sharp & Dohme LLC $22.4810/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048874829 CMS
Sumitomo Pharma America, Inc. $26.7410/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261030744837 CMS
Daiichi Sankyo Inc. $3.2610/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261006520771 CMS
Ipsen Biopharmaceuticals, Inc $24.2110/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261045457525 CMS
Daiichi Sankyo Inc. $18.7810/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261006520757 CMS
Daiichi Sankyo Inc. $20.7310/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261006525333 CMS
AstraZeneca Pharmaceuticals LP $11.7410/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015737567 CMS
E.R. Squibb & Sons, L.L.C. $21.1610/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015515301 CMS
Genentech USA, Inc. $15.1610/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040532609 CMS
Genentech USA, Inc. $26.6010/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040532615 CMS
Regeneron Healthcare Solutions, Inc. $34.6910/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026999485727 CMS
PFIZER INC. $2.5810/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261050272349 CMS
Merck Sharp & Dohme LLC $24.0710/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048875081 CMS
Gilead Sciences, Inc. $23.3610/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261025696905 CMS
Mirati Therapeutics, Inc. $153.3010/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261058004801 CMS
PFIZER INC. $22.7010/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261050157343 CMS
PharmaEssentia USA Corporation $19.0910/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261059313285 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $2,568.63 88
PY2020 $9,650.84 66
PY2021 $6,025.70 84
PY2022 $4,574.20 163
PY2023 $5,344.02 234
PY2024 $10,991.05 228
PY2025 $7,064.33 272

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
RONALD TANG, NPI 1609022383. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1609022383.
APA 7
IndustryPayments. (2026). RONALD TANG, NPI 1609022383 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1609022383
Bluebook
RONALD TANG, NPI 1609022383, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1609022383.

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