Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-06-30 View official record Methodology

Covered recipient · General Payments record

MARK ALLEN WILLIAMS

Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner Psychiatric/Mental Health

NPI
1023786225
CMS profile
11017626
Location
MESA, AZ

General Payments · PY2022–2025

$2,543.52

  • Reported across 112 records
  • CMS publication 2026-06-30

Latest program year · PY2025

$538.61

27 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

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $538.61 27

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
ITI, Inc. $348.31 18
E.R. Squibb & Sons, L.L.C. $74.60 4
Alkermes, Inc. $57.25 2
Vanda Pharmaceuticals Inc. $22.87 1
Braeburn Inc. $22.09 1
ABBVIE INC. $13.49 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2022 $662.51 22
PY2023 $768.80 39
PY2024 $573.60 24
PY2025 $538.61 27

Payment records · PY2025 (27)

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

Program year 2025 202220232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
ABBVIE INC. $13.49 05/05/2025 Food and Beverage Undisputed 06/30/2026 1204131173 CMS
Alkermes, Inc. $25.36 03/31/2025 Food and Beverage Undisputed 06/30/2026 1222669486 CMS
Alkermes, Inc. $31.89 05/12/2025 Food and Beverage Undisputed 06/30/2026 1222669488 CMS
Braeburn Inc. $22.09 08/25/2025 Food and Beverage Undisputed 06/30/2026 1249082679 CMS
E.R. Squibb & Sons, L.L.C. $14.77 02/11/2025 Food and Beverage Undisputed 06/30/2026 1184416397 CMS
E.R. Squibb & Sons, L.L.C. $24.53 09/02/2025 Food and Beverage Undisputed 06/30/2026 1184416455 CMS
E.R. Squibb & Sons, L.L.C. $15.40 11/03/2025 Food and Beverage Undisputed 06/30/2026 1184416477 CMS
E.R. Squibb & Sons, L.L.C. $19.90 12/01/2025 Food and Beverage Undisputed 06/30/2026 1184416489 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $18.04 01/13/2025 Food and Beverage Undisputed 06/30/2026 1241722190 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $14.37 02/10/2025 Food and Beverage Undisputed 06/30/2026 1241722192 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $6.40 02/24/2025 Food and Beverage Undisputed 06/30/2026 1241722194 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $12.24 03/17/2025 Food and Beverage Undisputed 06/30/2026 1241722196 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $14.01 04/07/2025 Food and Beverage Undisputed 06/30/2026 1241722198 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $20.59 04/21/2025 Food and Beverage Undisputed 06/30/2026 1241722200 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $14.14 05/19/2025 Food and Beverage Undisputed 06/30/2026 1241722202 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $17.77 06/02/2025 Food and Beverage Undisputed 06/30/2026 1241722204 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $13.54 06/24/2025 Food and Beverage Undisputed 06/30/2026 1241722206 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $7.51 06/30/2025 Food and Beverage Undisputed 06/30/2026 1241722208 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $8.68 07/14/2025 Food and Beverage Undisputed 06/30/2026 1241722210 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $14.42 07/21/2025 Food and Beverage Undisputed 06/30/2026 1241722212 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $91.08 07/22/2025 Food and Beverage Undisputed 06/30/2026 1241722214 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $23.51 08/05/2025 Food and Beverage Undisputed 06/30/2026 1241722216 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $22.70 08/18/2025 Food and Beverage Undisputed 06/30/2026 1241722218 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $12.73 10/14/2025 Food and Beverage Undisputed 06/30/2026 1241722220 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $19.47 10/20/2025 Food and Beverage Undisputed 06/30/2026 1241722222 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $17.11 11/10/2025 Food and Beverage Undisputed 06/30/2026 1241722224 CMS
Vanda Pharmaceuticals Inc. $22.87 01/13/2025 Food and Beverage Undisputed 06/30/2026 1233145509 CMS

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
2022, 2023, 2024, 2025
Source files
Dataset page · Bulk file · PY2022 , PY2023 , PY2024 , PY2025
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.