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

WILLIAM L DAVIDSON

Allopathic & Osteopathic Physicians Allergy & Immunology

NPI
1578583191
CMS profile
70647
Location
DAPHNE, AL

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

$37,139.51

174 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

PY2023 · entire year · sorted by reported total

By paying entity

PY2023 · entire year · sorted by reported total

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

174 matching records · $37,139.51 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 174 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 174.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Regeneron Healthcare Solutions, Inc. $31.8312/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026999143713 CMS
Grifols USA, LLC $18.8712/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261011794473 CMS
Takeda Pharmaceuticals U.S.A., Inc. $32.8212/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055375391 CMS
GlaxoSmithKline, LLC. $1,300.0012/08/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003306429 CMS
Incyte Corporation $24.1212/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261044167961 CMS
AstraZeneca Pharmaceuticals LP $18.8912/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261016207063 CMS
Genentech USA, Inc. $26.3712/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040599377 CMS
GlaxoSmithKline, LLC. $12.6412/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003307165 CMS
GlaxoSmithKline, LLC. $16.4112/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003316575 CMS
Regeneron Healthcare Solutions, Inc. $4.9612/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026999143707 CMS
CSL Behring $18.1811/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261042884621 CMS
Regeneron Healthcare Solutions, Inc. $31.0011/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026999143701 CMS
GlaxoSmithKline, LLC. $11.9211/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003315863 CMS
Takeda Pharmaceuticals U.S.A., Inc. $41.5811/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055375389 CMS
GENZYME CORPORATION $7.2811/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049985335 CMS
GlaxoSmithKline, LLC. $13.2111/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003306459 CMS
CSL Behring $14.2311/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261042884633 CMS
GlaxoSmithKline, LLC. $3.6011/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003305641 CMS
Blueprint Medicines Corporation $22.1111/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051271741 CMS
GENZYME CORPORATION $13.0111/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049985323 CMS
Grifols USA, LLC $24.5311/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261011794485 CMS
AstraZeneca Pharmaceuticals LP $14.1811/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014538481 CMS
Genentech USA, Inc. $23.5411/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040599367 CMS
CSL Behring $10.7410/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261042884627 CMS
Regeneron Healthcare Solutions, Inc. $29.6710/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026999143695 CMS
Takeda Pharmaceuticals U.S.A., Inc. $37.1510/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055375387 CMS
GENZYME CORPORATION $14.2110/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049985299 CMS
Grifols USA, LLC $23.6710/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261011794479 CMS
Takeda Pharmaceuticals U.S.A., Inc. $10.5410/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055375385 CMS
Regeneron Healthcare Solutions, Inc. $18.7310/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026999143689 CMS
AstraZeneca Pharmaceuticals LP $28.3810/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015897023 CMS
Philips Electronics North America Corporation $14.9810/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261024031517 CMS
CSL Behring $32.9910/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261042884617 CMS
AstraZeneca Pharmaceuticals LP $17.1310/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015985001 CMS
GlaxoSmithKline, LLC. $11.7910/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003315797 CMS
GlaxoSmithKline, LLC. $9.5010/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003316587 CMS
GlaxoSmithKline, LLC. $10.5410/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003315831 CMS
GlaxoSmithKline, LLC. $3,900.0010/11/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003315847 CMS
GlaxoSmithKline, LLC. $3,900.0010/11/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003316607 CMS
Takeda Pharmaceuticals U.S.A., Inc. $1.8410/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055375381 CMS
Takeda Pharmaceuticals U.S.A., Inc. $13.9510/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055375383 CMS
Optinose US, Inc. $19.9310/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261035097777 CMS
Genentech USA, Inc. $21.4510/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040599335 CMS
GlaxoSmithKline, LLC. $12.7510/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003316597 CMS
GENZYME CORPORATION $83.3310/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049985307 CMS
GlaxoSmithKline, LLC. $39.3010/04/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003305653 CMS
GlaxoSmithKline, LLC. $21.1410/04/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003315827 CMS
GlaxoSmithKline, LLC. $3,900.0010/04/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003316609 CMS
AstraZeneca Pharmaceuticals LP $15.6010/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015015983 CMS
Amgen Inc. $30.2409/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261020200093 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $23,776.79 142
PY2020 $5,565.53 84
PY2021 $12,609.83 153
PY2022 $6,673.13 132
PY2023 $37,139.51 174
PY2024 $4,754.96 130
PY2025 $7,617.46 170

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
WILLIAM L DAVIDSON, NPI 1578583191. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1578583191.
APA 7
IndustryPayments. (2026). WILLIAM L DAVIDSON, NPI 1578583191 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1578583191
Bluebook
WILLIAM L DAVIDSON, NPI 1578583191, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1578583191.

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