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

Page 2 of 6; records 51–100 of 281 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

MICHAEL M DAO

NPI 1437321932 · CMS profile ID 337948

Allopathic & Osteopathic Physicians / Internal Medicine

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.

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.

General Payments, PY2023; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 2 of 6; records 51–100 of 281 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1437321932?year=2023&recipient=provider&page=2#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
MICHAEL M DAO, NPI 1437321932, CMS profile ID 337948. General Payments, PY2023; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 2 of 6; records 51–100 of 281 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1437321932?year=2023&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
APA 7
IndustryPayments. (2026). MICHAEL M DAO, NPI 1437321932, CMS profile ID 337948. General Payments, PY2023; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 2 of 6; records 51–100 of 281 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1437321932?year=2023&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
Bluebook
MICHAEL M DAO, NPI 1437321932, CMS profile ID 337948, IndustryPayments, General Payments, PY2023; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 2 of 6; records 51–100 of 281 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9. https://industrypayments.org/provider/npi-1437321932?year=2023&recipient=provider&page=2#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

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 51–100 of 281.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
AbbVie Inc. $23.8510/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 996586613 CMS
Gilead Sciences, Inc. $102.0410/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1025522675 CMS
UCB, Inc. $22.5710/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021906455 CMS
AbbVie Inc. $5.9210/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 996586611 CMS
AstraZeneca Pharmaceuticals LP $19.8510/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1016263455 CMS
Axsome Therapeutics, Inc. $26.2310/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1056192061 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $24.8910/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 997122323 CMS
NESTLE HEALTHCARE NUTRITION INC. $10.4110/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1012479175 CMS
Bayer Healthcare Pharmaceuticals Inc. $15.7210/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000266661 CMS
Kowa Pharmaceuticals America, Inc. $21.5510/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1003745117 CMS
Almatica Pharma LLC $20.8410/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 993444705 CMS
Arcutis Biotherapeutics, Inc. $13.5709/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1044803763 CMS
Gilead Sciences, Inc. $34.4509/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1025541481 CMS
Novartis Pharmaceuticals Corporation $12.5309/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 991830989 CMS
AbbVie Inc. $19.8609/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 996586607 CMS
Corium, LLC $19.2009/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 978575831 CMS
Amgen Inc. $5.1109/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1020640037 CMS
Bayer Healthcare Pharmaceuticals Inc. $18.7309/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000304750 CMS
DePuy Synthes Sales Inc. $19.1609/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 990917573 CMS
Almatica Pharma LLC $31.7909/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 993444703 CMS
Amgen Inc. $148.1909/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1020027611 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $16.9509/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1057062651 CMS
AbbVie Inc. $24.8509/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 996586603 CMS
Amgen Inc. $6.4809/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1020640035 CMS
MDD US Operations, LLC $23.8209/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1052869749 CMS
IBSA Pharma Inc. $5.5509/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 999702255 CMS
Almatica Pharma LLC $23.5209/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 993444701 CMS
Almatica Pharma LLC $7.4709/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 993444699 CMS
Paratek Pharmaceuticals, Inc. $10.2509/08/2023 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 1002190225 CMS
Novartis Pharmaceuticals Corporation $5.4709/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 991830961 CMS
Paratek Pharmaceuticals, Inc. $124.9909/06/2023 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 1002190213 CMS
Amgen Inc. $5.6009/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1020027605 CMS
Optinose US, Inc. $24.1509/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1035143767 CMS
Novo Nordisk Inc $15.1708/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000372819 CMS
Amgen Inc. $120.1608/30/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1020640049 CMS
Novartis Pharmaceuticals Corporation $5.8408/30/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 991830957 CMS
PFIZER INC. $21.5708/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049112461 CMS
Paratek Pharmaceuticals, Inc. $6.0008/28/2023 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 1002190199 CMS
Novartis Pharmaceuticals Corporation $7.1208/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 991830955 CMS
Novartis Pharmaceuticals Corporation $2.8308/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 991830973 CMS
Novartis Pharmaceuticals Corporation $12.1208/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 991830981 CMS
Gilead Sciences, Inc. $24.4108/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1025658669 CMS
AstraZeneca Pharmaceuticals LP $16.1208/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1014364661 CMS
Gilead Sciences, Inc. $9.9208/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1026072193 CMS
Ironwood Pharmaceuticals, Inc $22.6608/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1045557793 CMS
Novartis Pharmaceuticals Corporation $6.1108/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 991830965 CMS
NESTLE HEALTHCARE NUTRITION INC. $23.5508/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1012530421 CMS
Horizon Therapeutics plc $18.8608/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 986981663 CMS
Sun Pharmaceutical Industries Inc. $35.6208/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1053928063 CMS
AbbVie Inc. $23.9308/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 996586599 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.