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

PHILIP L CHATHAM

Allopathic & Osteopathic Physicians Internal Medicine Medical Oncology

NPI
1740279264
CMS profile
305462
Location
SAN GABRIEL, 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 · PY2021 · Entire year

$1,134.00

47 records · 0 disputed

Summary and payment records

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

“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

PY2021 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,034.05 46
Education $99.95 1

By paying entity

PY2021 · entire year · sorted by reported total

Page 1 of 1; records 1–47 of 47 matching records. This page contains 47 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

PHILIP L CHATHAM

NPI 1740279264 · CMS profile ID 305462

Allopathic & Osteopathic Physicians / Internal Medicine / Medical Oncology

SAN GABRIEL, 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, PY2021; 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 1; records 1–47 of 47 matching records. This page contains 47 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1740279264?year=2021&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202

Cite these filtered records

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

Plain
PHILIP L CHATHAM, NPI 1740279264, CMS profile ID 305462. General Payments, PY2021; 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 1; records 1–47 of 47 matching records. This page contains 47 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1740279264?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
APA 7
IndustryPayments. (2026). PHILIP L CHATHAM, NPI 1740279264, CMS profile ID 305462. General Payments, PY2021; 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 1; records 1–47 of 47 matching records. This page contains 47 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1740279264?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
Bluebook
PHILIP L CHATHAM, NPI 1740279264, CMS profile ID 305462, IndustryPayments, General Payments, PY2021; 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 1; records 1–47 of 47 matching records. This page contains 47 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202. https://industrypayments.org/provider/npi-1740279264?year=2021&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 · PY2021

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

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

47 matching records · $1,134.00 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 47 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 1–47 of 47.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Lilly USA, LLC $30.7911/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 818723859 CMS
Incyte Corporation $18.4511/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 835518725 CMS
PUMA BIOTECHNOLOGY, INC. $22.9111/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 834089883 CMS
Karyopharm Therapeutics Inc. $27.6711/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845787945 CMS
PUMA BIOTECHNOLOGY, INC. $19.3910/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 834091341 CMS
Ipsen Biopharmaceuticals, Inc $21.7410/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 841912333 CMS
Janssen Biotech, Inc. $99.9510/20/2021 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788629045 CMS
TerSera Therapeutics LLC $24.1510/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 851045669 CMS
Takeda Pharmaceuticals U.S.A., Inc. $17.4810/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 819887043 CMS
Merck Sharp & Dohme Corporation $19.1409/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 848536481 CMS
Takeda Pharmaceuticals U.S.A., Inc. $29.4109/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 819887039 CMS
Janssen Biotech, Inc. $20.7709/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788629047 CMS
Eisai Inc. $20.2009/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 817999645 CMS
Seagen Inc. $25.0209/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 832180905 CMS
AstraZeneca Pharmaceuticals LP $17.7009/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 830229739 CMS
Deciphera Pharmaceuticals Inc. $17.7809/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 826794529 CMS
Bayer HealthCare Pharmaceuticals Inc. $21.6809/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 789138015 CMS
Eisai Inc. $23.4709/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 817980291 CMS
Blueprint Medicines Corporation $28.8808/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 848931089 CMS
PFIZER INC. $16.6208/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 832960105 CMS
Alexion Pharmaceuticals, Inc. $21.4708/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 783128715 CMS
Rigel Pharmaceuticals, Inc. $25.9108/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 854328407 CMS
Optos, Inc. $14.2108/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 853263081 CMS
AstraZeneca Pharmaceuticals LP $19.7108/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829636365 CMS
Lilly USA, LLC $28.5607/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 818716273 CMS
GlaxoSmithKline, LLC. $29.7207/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 801648061 CMS
Myriad Genetic Laboratories, Inc. $20.6207/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 834573141 CMS
GENZYME CORPORATION $20.5706/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 843508727 CMS
Exelixis Inc. $27.3506/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 838869571 CMS
EMD Serono, Inc. $19.9806/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 849194191 CMS
Alexion Pharmaceuticals, Inc. $20.0006/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 783128701 CMS
Merck Sharp & Dohme Corporation $23.5606/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 848333785 CMS
Rigel Pharmaceuticals, Inc. $25.7906/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 854327725 CMS
Incyte Corporation $11.8205/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 835518717 CMS
TOLMAR Pharmaceuticals, Inc. $24.2905/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 836490977 CMS
Taiho Oncology, Inc. $31.8105/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 843380945 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $24.9805/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763469396 CMS
Pharmacyclics LLC, An AbbVie Company $23.8505/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 781016767 CMS
GENZYME CORPORATION $20.2505/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 843508683 CMS
TerSera Therapeutics LLC $24.7304/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 851045667 CMS
Incyte Corporation $19.4304/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 835518719 CMS
Novartis Pharmaceuticals Corporation $21.0804/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 812633217 CMS
Merck Sharp & Dohme Corporation $22.2904/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 848326567 CMS
Genentech USA, Inc. $23.9204/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 835962639 CMS
Eisai Inc. $20.9903/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 817888657 CMS
Exelixis Inc. $27.1103/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 838868407 CMS
Novartis Pharmaceuticals Corporation $16.8003/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 812633215 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $936.06 42
PY2020 $251.48 8
PY2021 $1,134.00 47
PY2022 $1,260.64 51
PY2023 $763.18 20

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
Source files and profile matching
Source files
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023
Generated from
OP_DTL_GNRL_PGYR2023_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.