Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

SANFORD CHEN

Allopathic & Osteopathic Physicians Ophthalmology

NPI
1427051994
CMS profile
337292
Location
SANTA ANA, CA

General Payments · PY2018–2024

$108,693.74

  • Reported across 609 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$43,449.23

136 records · 0 disputed

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $10,491.63 62
PY2019 $11,011.71 86
PY2020 $8,160.54 31
PY2021 $4,786.52 67
PY2022 $11,785.00 94
PY2023 $19,009.11 133
PY2024 $43,449.23 136

Payment records · PY2024 (136)

Sorted by paying entity, then date · as published by CMS

Program year 2024 201820192020202120222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
ABBVIE INC. $27.94 01/22/2024 Food and Beverage Undisputed 01/23/2026 1103453532 CMS
ABBVIE INC. $23.41 03/15/2024 Food and Beverage Undisputed 01/23/2026 1103453534 CMS
ABBVIE INC. $26.42 04/19/2024 Food and Beverage Undisputed 01/23/2026 1103453536 CMS
ABBVIE INC. $24.71 06/07/2024 Food and Beverage Undisputed 01/23/2026 1103453538 CMS
ABBVIE INC. $38.02 07/17/2024 Food and Beverage Undisputed 01/23/2026 1103453540 CMS
ABBVIE INC. $24.73 07/23/2024 Food and Beverage Undisputed 01/23/2026 1103453542 CMS
ABBVIE INC. $125.00 08/22/2024 Food and Beverage Undisputed 01/23/2026 1103453544 CMS
ABBVIE INC. $29.38 09/09/2024 Food and Beverage Undisputed 01/23/2026 1103453546 CMS
ABBVIE INC. $24.11 10/02/2024 Food and Beverage Undisputed 01/23/2026 1103453548 CMS
ABBVIE INC. $26.18 11/15/2024 Food and Beverage Undisputed 01/23/2026 1103453550 CMS
ABBVIE INC. $24.63 12/03/2024 Food and Beverage Undisputed 01/23/2026 1103453552 CMS
ABBVIE INC. $23.97 12/26/2024 Food and Beverage Undisputed 01/23/2026 1103453554 CMS
Alcon Vision LLC $141.99 02/27/2024 Food and Beverage Undisputed 01/23/2026 1110580775 CMS
Alcon Vision LLC $142.99 05/28/2024 Food and Beverage Undisputed 01/23/2026 1110580779 CMS
Alcon Vision LLC $149.90 07/10/2024 Food and Beverage Undisputed 01/23/2026 1110580785 CMS
Alcon Vision LLC $142.25 07/20/2024 Food and Beverage Undisputed 01/23/2026 1110580777 CMS
Alcon Vision LLC $146.86 08/10/2024 Food and Beverage Undisputed 01/23/2026 1110580783 CMS
Alcon Vision LLC $145.93 10/16/2024 Food and Beverage Undisputed 01/23/2026 1110580781 CMS
Alcon Vision LLC $139.46 10/17/2024 Food and Beverage Undisputed 01/23/2026 1110580773 CMS
Alimera Sciences, Inc. $22.08 05/28/2024 Food and Beverage Undisputed 01/23/2026 1092841393 CMS
Alimera Sciences, Inc. $135.25 05/30/2024 Food and Beverage Undisputed 01/23/2026 1092834951 CMS
Alimera Sciences, Inc. $115.28 07/19/2024 Food and Beverage Undisputed 01/23/2026 1092830153 CMS
Amgen Inc. $13.94 01/23/2024 Food and Beverage Undisputed 01/23/2026 1115497281 CMS
Amgen Inc. $26.20 03/22/2024 Food and Beverage Undisputed 01/23/2026 1115497290 CMS
Amgen Inc. $26.56 05/09/2024 Food and Beverage Undisputed 01/23/2026 1115497302 CMS
Amgen Inc. $25.17 07/11/2024 Food and Beverage Undisputed 01/23/2026 1115497312 CMS
Amgen Inc. $6.41 08/22/2024 Food and Beverage Undisputed 01/23/2026 1115497322 CMS
Amgen Inc. $31.02 10/09/2024 Food and Beverage Undisputed 01/23/2026 1115497333 CMS
Amgen Inc. $7.76 12/10/2024 Food and Beverage Undisputed 01/23/2026 1115497343 CMS
ANI Pharmaceuticals, Inc. $28.84 07/01/2024 Food and Beverage Undisputed 01/23/2026 1091156186 CMS
ANI Pharmaceuticals, Inc. $19.92 08/27/2024 Food and Beverage Undisputed 01/23/2026 1091134881 CMS
ANI Pharmaceuticals, Inc. $120.79 11/13/2024 Food and Beverage Undisputed 01/23/2026 1091163376 CMS
ANI Pharmaceuticals, Inc. $23.51 11/18/2024 Food and Beverage Undisputed 01/23/2026 1091162188 CMS
Apellis Pharmaceuticals, Inc. $34.61 01/17/2024 Food and Beverage Undisputed 01/23/2026 1154029233 CMS
Apellis Pharmaceuticals, Inc. $45.00 03/13/2024 Food and Beverage Undisputed 01/23/2026 1154029229 CMS
Apellis Pharmaceuticals, Inc. $32.51 03/25/2024 Food and Beverage Undisputed 01/23/2026 1154029231 CMS
Apellis Pharmaceuticals, Inc. $34.38 04/09/2024 Food and Beverage Undisputed 01/23/2026 1154029237 CMS
Apellis Pharmaceuticals, Inc. $28.24 05/10/2024 Food and Beverage Undisputed 01/23/2026 1154029235 CMS
Apellis Pharmaceuticals, Inc. $133.17 07/17/2024 Food and Beverage Undisputed 01/23/2026 1154029239 CMS
Apellis Pharmaceuticals, Inc. $33.01 09/13/2024 Food and Beverage Undisputed 01/23/2026 1154029227 CMS
Apellis Pharmaceuticals, Inc. $34.44 11/04/2024 Food and Beverage Undisputed 01/23/2026 1154029241 CMS
Astellas Pharma US Inc $64.18 01/25/2024 Food and Beverage Undisputed 01/23/2026 1139414381 CMS
Astellas Pharma US Inc $4,400.00 02/02/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1139414321 CMS
Astellas Pharma US Inc $18.36 02/02/2024 Travel and Lodging Undisputed 01/23/2026 1139452706 CMS
Astellas Pharma US Inc $24.12 02/02/2024 Travel and Lodging Undisputed 01/23/2026 1139452714 CMS
Astellas Pharma US Inc $15.00 02/02/2024 Travel and Lodging Undisputed 01/23/2026 1139453148 CMS
Astellas Pharma US Inc $30.85 03/12/2024 Food and Beverage Undisputed 01/23/2026 1139301406 CMS
Astellas Pharma US Inc $550.00 03/18/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1139450000 CMS
Astellas Pharma US Inc $550.00 04/02/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1139450006 CMS
Astellas Pharma US Inc $115.46 04/10/2024 Food and Beverage Undisputed 01/23/2026 1139414789 CMS
Astellas Pharma US Inc $718.25 04/10/2024 Travel and Lodging Undisputed 01/23/2026 1139453334 CMS
Astellas Pharma US Inc $25.12 04/12/2024 Food and Beverage Undisputed 01/23/2026 1139329520 CMS
Astellas Pharma US Inc $6,050.00 04/16/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1139414117 CMS
Astellas Pharma US Inc $17.69 04/16/2024 Travel and Lodging Undisputed 01/23/2026 1139453268 CMS
Astellas Pharma US Inc $17.70 04/26/2024 Food and Beverage Undisputed 01/23/2026 1139332640 CMS
Astellas Pharma US Inc $21.28 05/08/2024 Food and Beverage Undisputed 01/23/2026 1139352903 CMS
Astellas Pharma US Inc $118.96 05/15/2024 Food and Beverage Undisputed 01/23/2026 1139414791 CMS
Astellas Pharma US Inc $25.57 05/18/2024 Food and Beverage Undisputed 01/23/2026 1139353841 CMS
Astellas Pharma US Inc $6,050.00 05/28/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1139414635 CMS
Astellas Pharma US Inc $20.23 05/28/2024 Travel and Lodging Undisputed 01/23/2026 1139452712 CMS
Astellas Pharma US Inc $136.95 05/28/2024 Travel and Lodging Undisputed 01/23/2026 1139453004 CMS
Astellas Pharma US Inc $9.18 05/28/2024 Travel and Lodging Undisputed 01/23/2026 1139453296 CMS
Astellas Pharma US Inc $20.30 07/11/2024 Food and Beverage Undisputed 01/23/2026 1139266832 CMS
Astellas Pharma US Inc $25.37 07/26/2024 Food and Beverage Undisputed 01/23/2026 1139267154 CMS
Astellas Pharma US Inc $8.67 07/26/2024 Food and Beverage Undisputed 01/23/2026 1139298848 CMS
Astellas Pharma US Inc $1,100.00 08/06/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1139402783 CMS
Astellas Pharma US Inc $32.78 09/03/2024 Food and Beverage Undisputed 01/23/2026 1139404173 CMS
Astellas Pharma US Inc $25.87 10/08/2024 Food and Beverage Undisputed 01/23/2026 1139420969 CMS
Astellas Pharma US Inc $6.87 10/29/2024 Food and Beverage Undisputed 01/23/2026 1139421179 CMS
Astellas Pharma US Inc $33.04 11/22/2024 Food and Beverage Undisputed 01/23/2026 1139433256 CMS
Astellas Pharma US Inc $20.45 12/16/2024 Food and Beverage Undisputed 01/23/2026 1139443346 CMS
Biogen, Inc. $16.08 07/10/2024 Food and Beverage Undisputed 01/23/2026 1104842126 CMS
Genentech USA, Inc. $31.55 01/25/2024 Food and Beverage Undisputed 01/23/2026 1133106490 CMS
Genentech USA, Inc. $25.13 02/09/2024 Food and Beverage Undisputed 01/23/2026 1133106506 CMS
Genentech USA, Inc. $303.97 04/20/2024 Travel and Lodging Undisputed 01/23/2026 1133106454 CMS
Genentech USA, Inc. $14.09 04/20/2024 Food and Beverage Undisputed 01/23/2026 1133106458 CMS
Genentech USA, Inc. $747.29 04/20/2024 Travel and Lodging Undisputed 01/23/2026 1133106462 CMS
Genentech USA, Inc. $67.27 04/20/2024 Travel and Lodging Undisputed 01/23/2026 1133106466 CMS
Genentech USA, Inc. $255.00 04/20/2024 Food and Beverage Undisputed 01/23/2026 1133106470 CMS
Genentech USA, Inc. $6,345.00 04/20/2024 Consulting Fee Undisputed 01/23/2026 1133106474 CMS
Genentech USA, Inc. $32.52 04/22/2024 Food and Beverage Undisputed 01/23/2026 1133106494 CMS
Genentech USA, Inc. $26.15 04/30/2024 Food and Beverage Undisputed 01/23/2026 1133106450 CMS
Genentech USA, Inc. $73.77 05/23/2024 Food and Beverage Undisputed 01/23/2026 1133106502 CMS
Genentech USA, Inc. $28.41 05/30/2024 Food and Beverage Undisputed 01/23/2026 1133106498 CMS
Genentech USA, Inc. $27.34 07/08/2024 Food and Beverage Undisputed 01/23/2026 1133106478 CMS
Genentech USA, Inc. $26.79 08/16/2024 Food and Beverage Undisputed 01/23/2026 1133106510 CMS
Genentech USA, Inc. $26.80 09/10/2024 Food and Beverage Undisputed 01/23/2026 1133106482 CMS
Genentech USA, Inc. $28.85 10/28/2024 Food and Beverage Undisputed 01/23/2026 1133106514 CMS
Genentech USA, Inc. $29.03 10/29/2024 Food and Beverage Undisputed 01/23/2026 1133106486 CMS
Genentech, Inc. $126.51 05/23/2024 Food and Beverage Undisputed 01/23/2026 1133106518 CMS
Harrow Eye, LLC $22.21 02/01/2024 Food and Beverage Undisputed 01/23/2026 1145600079 CMS
Harrow Eye, LLC $22.99 03/14/2024 Food and Beverage Undisputed 01/23/2026 1145600081 CMS
Harrow Eye, LLC $37.10 04/16/2024 Food and Beverage Undisputed 01/23/2026 1145600083 CMS
Harrow Eye, LLC $20.41 05/16/2024 Food and Beverage Undisputed 01/23/2026 1145600085 CMS
Harrow Eye, LLC $125.00 08/06/2024 Food and Beverage Undisputed 01/23/2026 1145600087 CMS
Harrow Eye, LLC $22.99 09/05/2024 Food and Beverage Undisputed 01/23/2026 1145600089 CMS
Mallinckrodt Hospital Products Inc. $5.97 01/19/2024 Food and Beverage Undisputed 01/23/2026 1145056754 CMS
Mallinckrodt Hospital Products Inc. $24.37 01/30/2024 Food and Beverage Undisputed 01/23/2026 1145056758 CMS
Mallinckrodt Hospital Products Inc. $1.35 01/30/2024 Food and Beverage Undisputed 01/23/2026 1145056762 CMS
Mallinckrodt Hospital Products Inc. $26.51 02/24/2024 Food and Beverage Undisputed 01/23/2026 1145056766 CMS
Mallinckrodt Hospital Products Inc. $11.57 02/28/2024 Food and Beverage Undisputed 01/23/2026 1145056771 CMS
Mallinckrodt Hospital Products Inc. $17.08 05/24/2024 Food and Beverage Undisputed 01/23/2026 1145056775 CMS
Mallinckrodt Hospital Products Inc. $32.70 09/27/2024 Food and Beverage Undisputed 01/23/2026 1145056779 CMS
Mallinckrodt Hospital Products Inc. $25.08 11/14/2024 Food and Beverage Undisputed 01/23/2026 1145056783 CMS
Ocular Therapeutix, Inc. $27.56 10/02/2024 Food and Beverage Undisputed 01/23/2026 1148203187 CMS
Regeneron Healthcare Solutions, Inc. $28.42 01/26/2024 Food and Beverage Undisputed 01/23/2026 1114023500 CMS
Regeneron Healthcare Solutions, Inc. $349.14 01/30/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1114023502 CMS
Regeneron Healthcare Solutions, Inc. $179.86 02/12/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1114023504 CMS
Regeneron Healthcare Solutions, Inc. $12.25 02/16/2024 Food and Beverage Undisputed 01/23/2026 1114023506 CMS
Regeneron Healthcare Solutions, Inc. $20.88 02/29/2024 Food and Beverage Undisputed 01/23/2026 1114023508 CMS
Regeneron Healthcare Solutions, Inc. $18.26 03/28/2024 Food and Beverage Undisputed 01/23/2026 1114023510 CMS
Regeneron Healthcare Solutions, Inc. $38.73 04/25/2024 Food and Beverage Undisputed 01/23/2026 1114023512 CMS
Regeneron Healthcare Solutions, Inc. $34.98 05/04/2024 Food and Beverage Undisputed 01/23/2026 1114023514 CMS
Regeneron Healthcare Solutions, Inc. $19.89 06/25/2024 Food and Beverage Undisputed 01/23/2026 1114023516 CMS
Regeneron Healthcare Solutions, Inc. $36.09 07/01/2024 Food and Beverage Undisputed 01/23/2026 1114023518 CMS
Regeneron Healthcare Solutions, Inc. $19.83 07/02/2024 Education Undisputed 01/23/2026 1114023520 CMS
Regeneron Healthcare Solutions, Inc. $20.73 07/02/2024 Education Undisputed 01/23/2026 1114023522 CMS
Regeneron Healthcare Solutions, Inc. $22.63 07/12/2024 Food and Beverage Undisputed 01/23/2026 1114023524 CMS
Regeneron Healthcare Solutions, Inc. $2,210.00 07/12/2024 Consulting Fee Undisputed 01/23/2026 1114023526 CMS
Regeneron Healthcare Solutions, Inc. $131.52 07/24/2024 Food and Beverage Undisputed 01/23/2026 1114023528 CMS
Regeneron Healthcare Solutions, Inc. $34.50 08/02/2024 Food and Beverage Undisputed 01/23/2026 1114023530 CMS
Regeneron Healthcare Solutions, Inc. $35.33 08/29/2024 Food and Beverage Undisputed 01/23/2026 1114023532 CMS
Regeneron Healthcare Solutions, Inc. $107.79 08/31/2024 Food and Beverage Undisputed 01/23/2026 1114023534 CMS
Regeneron Healthcare Solutions, Inc. $6.99 09/06/2024 Food and Beverage Undisputed 01/23/2026 1114023536 CMS
Regeneron Healthcare Solutions, Inc. $39.91 10/11/2024 Food and Beverage Undisputed 01/23/2026 1114023538 CMS
Regeneron Healthcare Solutions, Inc. $123.20 10/14/2024 Food and Beverage Undisputed 01/23/2026 1114023540 CMS
Regeneron Healthcare Solutions, Inc. $34.82 10/22/2024 Food and Beverage Undisputed 01/23/2026 1114023542 CMS
Regeneron Healthcare Solutions, Inc. $119.76 12/07/2024 Food and Beverage Undisputed 01/23/2026 1114023544 CMS
Regeneron Healthcare Solutions, Inc. $1,780.97 12/10/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1114023546 CMS
Regeneron Healthcare Solutions, Inc. $32.08 12/13/2024 Food and Beverage Undisputed 01/23/2026 1114023548 CMS
Regeneron Healthcare Solutions, Inc. $1,105.00 12/20/2024 Consulting Fee Undisputed 01/23/2026 1114023550 CMS
Regeneron Healthcare Solutions, Inc. $3,315.00 12/20/2024 Consulting Fee Undisputed 01/23/2026 1114023552 CMS
Sandoz Inc. $31.89 08/05/2024 Food and Beverage Undisputed 01/23/2026 1089370496 CMS
US Oncology Corporate, Inc. $615.84 11/08/2024 Travel and Lodging Undisputed 01/23/2026 1084863252 CMS
US Oncology Corporate, Inc. $891.03 11/08/2024 Travel and Lodging Undisputed 01/23/2026 1084863270 CMS
US Oncology Corporate, Inc. $719.25 11/08/2024 Food and Beverage Undisputed 01/23/2026 1084863350 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.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.

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