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

MARGARET ANN VALLEN MASHIKIAN

Allopathic & Osteopathic Physicians Allergy & Immunology Allergy

NPI
1881751394
CMS profile
673458
Location
SOUTH WEYMOUTH, MA

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.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2019 · Entire year

$581.03

31 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

PY2019 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $581.03 31

By paying entity

PY2019 · entire year · sorted by reported total

Payment records · PY2019

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

31 matching records · $581.03 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 31 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 1–31 of 31.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Grifols USA, LLC $12.8412/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026692604165 CMS
GENZYME CORPORATION $25.0111/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026694210253 CMS
AstraZeneca Pharmaceuticals LP $10.9211/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685263681 CMS
GlaxoSmithKline, LLC. $20.1711/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670669323 CMS
AstraZeneca Pharmaceuticals LP $13.8810/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685924265 CMS
Genentech USA, Inc. $19.6210/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026681398557 CMS
Bio Products Laboratory USA, Inc. $39.7910/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026692556667 CMS
Merck Sharp & Dohme Corporation $17.5710/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695809673 CMS
Grifols USA, LLC $13.3309/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026692595337 CMS
CSL Behring $15.8009/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026683864549 CMS
Shire North American Group Inc $23.4709/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026637933835 CMS
CSL Behring $24.4508/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026683864527 CMS
AstraZeneca Pharmaceuticals LP $19.5907/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685727551 CMS
AstraZeneca Pharmaceuticals LP $23.3607/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685627055 CMS
GlaxoSmithKline, LLC. $19.6806/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670467209 CMS
GENZYME CORPORATION $11.0006/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026694104039 CMS
GlaxoSmithKline, LLC. $18.8905/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670825649 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $22.2605/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026700280021 CMS
Merck Sharp & Dohme Corporation $18.9505/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695483023 CMS
ALK-Abello, Inc $20.6604/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026698053733 CMS
PFIZER INC. $19.1604/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026672224643 CMS
Regeneron Healthcare Solutions, Inc. $15.6404/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673492431 CMS
Grifols USA, LLC $11.2904/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026692583145 CMS
Shire North American Group Inc $19.5403/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026637933833 CMS
Genentech USA, Inc. $19.2903/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026681301737 CMS
GlaxoSmithKline, LLC. $22.4303/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026671539419 CMS
AstraZeneca Pharmaceuticals LP $18.7803/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685972821 CMS
GlaxoSmithKline, LLC. $10.9102/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026671255965 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $12.1302/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026700280023 CMS
AstraZeneca Pharmaceuticals LP $23.0801/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685647683 CMS
ALK-Abello, Inc $17.5401/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026698052331 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $581.03 31
PY2020 $203.49 11
PY2021 $415.81 17
PY2022 $895.46 45
PY2023 $1,289.07 61
PY2024 $2,711.40 116
PY2025 $2,458.15 101

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
MARGARET ANN VALLEN MASHIKIAN, NPI 1881751394. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1881751394.
APA 7
IndustryPayments. (2026). MARGARET ANN VALLEN MASHIKIAN, NPI 1881751394 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1881751394
Bluebook
MARGARET ANN VALLEN MASHIKIAN, NPI 1881751394, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1881751394.

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