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 CHARLES WALTERS

Allopathic & Osteopathic Physicians Pediatrics Pediatric Hematology-Oncology

NPI
1588753610
CMS profile
806939
Location
OAKLAND, CA

General Payments · PY2019–2025

$68,997.54

  • Reported across 37 records
  • CMS publication 2026-06-30

Latest program year · PY2025

$9,212.42

4 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
Consulting Fee $9,135.00 2
Food and Beverage $77.42 2

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
VERTEX PHARMACEUTICALS INCORPORATED $9,212.42 4

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $6,127.75 8
PY2020 $4,950.00 2
PY2021 $6,930.00 2
PY2022 $5,670.00 2
PY2023 $16,643.34 10
PY2024 $19,464.03 9
PY2025 $9,212.42 4

Payment records · PY2025 (4)

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

Program year 2025 201920202021202220232024 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
VERTEX PHARMACEUTICALS INCORPORATED $6,930.00 02/19/2025 Consulting Fee Undisputed 06/30/2026 1213825318 CMS
VERTEX PHARMACEUTICALS INCORPORATED $2,205.00 06/11/2025 Consulting Fee Undisputed 06/30/2026 1213925710 CMS
VERTEX PHARMACEUTICALS INCORPORATED $28.73 12/05/2025 Food and Beverage Undisputed 06/30/2026 1213806365 CMS
VERTEX PHARMACEUTICALS INCORPORATED $48.69 12/05/2025 Food and Beverage Undisputed 06/30/2026 1213908026 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
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , 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.

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