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

MICHAEL M DAO

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1437321932
CMS profile
337948
Location
GARDEN GROVE, CA

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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General Payments · PY2023 · Entire year

$6,441.40

281 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“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

Nature of paymentAmountRecords
Food and Beverage $6,334.88 275
Education $102.52 5
Travel and Lodging $4.00 1

By paying entity

PY2023 · entire year · sorted by reported total

Paying entityAmountRecords
AbbVie Inc. $586.04 42
Amgen Inc. $505.83 21
Gilead Sciences, Inc. $405.73 11
AstraZeneca Pharmaceuticals LP $404.29 8
Lilly USA, LLC $369.75 12
Almatica Pharma LLC $339.21 17
Novartis Pharmaceuticals Corporation $301.00 31
Bayer Healthcare Pharmaceuticals Inc. $286.12 22
GlaxoSmithKline, LLC. $256.99 8
NESTLE HEALTHCARE NUTRITION INC. $237.21 8
Salix Pharmaceuticals, a division of Bausch Health US, LLC $199.96 6
Neurocrine Biosciences, Inc. $194.98 5
Paratek Pharmaceuticals, Inc. $166.83 7
ITI, Inc. $165.70 3
Janssen Pharmaceuticals, Inc $163.32 4
Edwards Lifesciences Corporation $160.74 1
Boehringer Ingelheim Pharmaceuticals, Inc. $158.15 9
IBSA Pharma Inc. $140.96 5
Astellas Pharma US Inc $138.38 5
Antares Pharma, Inc. $117.14 1
Mylan Specialty L.P. $104.51 5
Merck Sharp & Dohme LLC $98.80 5
Ironwood Pharmaceuticals, Inc $94.59 4
PFIZER INC. $84.85 4
UCB, Inc. $81.83 4
Kowa Pharmaceuticals America, Inc. $76.64 4
Novo Nordisk Inc $71.16 4
Sun Pharmaceutical Industries Inc. $70.14 2
Axsome Therapeutics, Inc. $50.08 2
Supernus Pharmaceuticals, Inc. $47.56 2
DePuy Synthes Sales Inc. $37.35 2
Tolmar, Inc. $36.11 2
Arcutis Biotherapeutics, Inc. $34.97 2
Horizon Therapeutics plc $34.48 2
Lundbeck LLC $33.79 2
GENZYME CORPORATION $26.11 1
Optinose US, Inc. $24.15 1
MDD US Operations, LLC $23.82 1
Valinor Pharma, LLC $21.54 1
SANOFI-AVENTIS U.S. LLC $21.07 1
Regeneron Healthcare Solutions, Inc. $20.10 1
Corium, LLC $19.20 1
IDORSIA PHARMACEUTICALS US INC $15.85 1
RedHill Biopharma Inc. $14.37 1

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

281 matching records · $6,441.40 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 281 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 281.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Lilly USA, LLC $18.7912/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261031962143 CMS
Valinor Pharma, LLC $21.5412/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261054187719 CMS
AbbVie Inc. $3.1612/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996586643 CMS
AbbVie Inc. $19.2012/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996586637 CMS
Novartis Pharmaceuticals Corporation $12.7912/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026991831023 CMS
Novartis Pharmaceuticals Corporation $3.7212/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026991831027 CMS
Novo Nordisk Inc $18.9212/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261000372825 CMS
Amgen Inc. $7.7512/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261020640047 CMS
Amgen Inc. $24.6812/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261020640045 CMS
Almatica Pharma LLC $26.6212/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993444709 CMS
Astellas Pharma US Inc $29.1612/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261034734587 CMS
Gilead Sciences, Inc. $22.2312/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261025735147 CMS
Sun Pharmaceutical Industries Inc. $34.5212/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261053928067 CMS
Novartis Pharmaceuticals Corporation $13.0911/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026991831019 CMS
Amgen Inc. $11.7311/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261020640043 CMS
Lilly USA, LLC $13.5211/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261031918373 CMS
AstraZeneca Pharmaceuticals LP $16.8011/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261011678401 CMS
Novo Nordisk Inc $14.1711/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261000372813 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $12.5111/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261057451557 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $13.6411/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261057348745 CMS
GlaxoSmithKline, LLC. $31.0911/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261002962917 CMS
Janssen Pharmaceuticals, Inc $33.4911/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026987784061 CMS
Almatica Pharma LLC $25.2011/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993444707 CMS
RedHill Biopharma Inc. $14.3711/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996696483 CMS
AbbVie Inc. $32.6811/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996586635 CMS
AbbVie Inc. $12.8211/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996586631 CMS
Merck Sharp & Dohme LLC $15.3911/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048853917 CMS
PFIZER INC. $23.5411/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049401879 CMS
AbbVie Inc. $23.3111/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996586627 CMS
Astellas Pharma US Inc $61.0011/07/2023 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/20261034645789 CMS
Novartis Pharmaceuticals Corporation $13.3211/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026991831001 CMS
Novartis Pharmaceuticals Corporation $3.8911/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026991831009 CMS
AbbVie Inc. $8.1311/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996586623 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $30.5811/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996555283 CMS
AbbVie Inc. $13.8810/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996586617 CMS
Amgen Inc. $20.9810/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261020640041 CMS
Amgen Inc. $7.0010/30/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261020027607 CMS
Neurocrine Biosciences, Inc. $24.6510/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261052309267 CMS
Neurocrine Biosciences, Inc. $0.3510/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261052309273 CMS
Lilly USA, LLC $28.6710/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261032060899 CMS
Merck Sharp & Dohme LLC $24.6110/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048282415 CMS
GlaxoSmithKline, LLC. $2.2810/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261002963011 CMS
GlaxoSmithKline, LLC. $29.2610/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261002964833 CMS
GlaxoSmithKline, LLC. $20.9810/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261002958923 CMS
Novartis Pharmaceuticals Corporation $12.9910/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026991830997 CMS
Novartis Pharmaceuticals Corporation $3.8910/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026991831005 CMS
Supernus Pharmaceuticals, Inc. $25.1110/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261054488329 CMS
Amgen Inc. $9.9810/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261020640039 CMS
Bayer Healthcare Pharmaceuticals Inc. $5.6810/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261000218051 CMS
Mylan Specialty L.P. $22.2910/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261039128589 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $10,431.84 316
PY2020 $7,527.22 245
PY2021 $6,862.27 337
PY2022 $6,263.60 258
PY2023 $6,441.40 281
PY2024 $7,580.36 302
PY2025 $10,507.47 306

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
MICHAEL M DAO, NPI 1437321932. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1437321932.
APA 7
IndustryPayments. (2026). MICHAEL M DAO, NPI 1437321932 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1437321932
Bluebook
MICHAEL M DAO, NPI 1437321932, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1437321932.

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