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

WILLIAM N BICHAI

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI
1548349004
CMS profile
492954
Location
BAKERSFIELD, CA

General Payments · PY2018–2024

$2,156.06

  • Reported across 120 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$257.67

22 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

Nature of paymentAmountRecords
Food and Beverage $257.67 22

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Amgen Inc. $170.68 17
AIMMUNE THERAPEUTICS, INC. $47.74 3
Otsuka America Pharmaceutical, Inc. $19.84 1
GlaxoSmithKline, LLC. $19.41 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $535.61 29
PY2019 $362.08 29
PY2020 $50.51 3
PY2021 $477.38 12
PY2022 $268.45 15
PY2023 $204.36 10
PY2024 $257.67 22

Payment records · PY2024 (22)

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
AIMMUNE THERAPEUTICS, INC. $16.00 03/15/2024 Food and Beverage Undisputed 01/23/2026 1147022730 CMS
AIMMUNE THERAPEUTICS, INC. $16.00 06/05/2024 Food and Beverage Undisputed 01/23/2026 1146985573 CMS
AIMMUNE THERAPEUTICS, INC. $15.74 08/28/2024 Food and Beverage Undisputed 01/23/2026 1147008773 CMS
Amgen Inc. $11.06 01/17/2024 Food and Beverage Undisputed 01/23/2026 1117507612 CMS
Amgen Inc. $10.06 02/08/2024 Food and Beverage Undisputed 01/23/2026 1115451544 CMS
Amgen Inc. $14.69 03/14/2024 Food and Beverage Undisputed 01/23/2026 1117507614 CMS
Amgen Inc. $11.85 04/10/2024 Food and Beverage Undisputed 01/23/2026 1117507616 CMS
Amgen Inc. $13.42 05/10/2024 Food and Beverage Undisputed 01/23/2026 1117507618 CMS
Amgen Inc. $9.57 05/30/2024 Food and Beverage Undisputed 01/23/2026 1117507624 CMS
Amgen Inc. $13.76 06/04/2024 Food and Beverage Undisputed 01/23/2026 1117507620 CMS
Amgen Inc. $6.87 08/20/2024 Food and Beverage Undisputed 01/23/2026 1115451548 CMS
Amgen Inc. $11.81 08/29/2024 Food and Beverage Undisputed 01/23/2026 1117507622 CMS
Amgen Inc. $6.60 09/12/2024 Food and Beverage Undisputed 01/23/2026 1115451552 CMS
Amgen Inc. $7.53 09/19/2024 Food and Beverage Undisputed 01/23/2026 1117507626 CMS
Amgen Inc. $9.63 10/22/2024 Food and Beverage Undisputed 01/23/2026 1117507628 CMS
Amgen Inc. $8.63 11/25/2024 Food and Beverage Undisputed 01/23/2026 1117507630 CMS
Amgen Inc. $6.52 12/11/2024 Food and Beverage Undisputed 01/23/2026 1115451558 CMS
Amgen Inc. $10.10 12/11/2024 Food and Beverage Undisputed 01/23/2026 1117507632 CMS
Amgen Inc. $7.66 12/17/2024 Food and Beverage Undisputed 01/23/2026 1115451562 CMS
Amgen Inc. $10.92 12/17/2024 Food and Beverage Undisputed 01/23/2026 1115451565 CMS
GlaxoSmithKline, LLC. $19.41 07/26/2024 Food and Beverage Undisputed 01/23/2026 1116685877 CMS
Otsuka America Pharmaceutical, Inc. $19.84 11/20/2024 Food and Beverage Undisputed 01/23/2026 1118862721 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

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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.