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 · PY2022 · Entire year

$6,263.60

258 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

PY2022 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $6,203.05 256
Education $60.55 2

By paying entity

PY2022 · entire year · sorted by reported total

Paying entityAmountRecords
AstraZeneca Pharmaceuticals LP $580.55 16
Novo Nordisk Inc $538.01 22
ABBVIE INC. $427.90 21
Amgen Inc. $387.24 17
Boehringer Ingelheim Pharmaceuticals, Inc. $303.35 11
Bayer HealthCare Pharmaceuticals Inc. $288.34 14
Gilead Sciences, Inc. $287.71 11
Horizon Therapeutics plc $278.60 12
Nestle HealthCare Nutrition Inc. $219.45 6
Novartis Pharmaceuticals Corporation $214.72 19
Lilly USA, LLC $202.53 7
Janssen Pharmaceuticals, Inc $193.78 5
Mylan Specialty L.P. $192.08 7
Esperion Therapeutics, Inc. $181.34 4
UCB, Inc. $153.70 9
Sun Pharmaceutical Industries Inc. $151.76 5
Biohaven Pharmaceutical Holding Company Ltd. $125.08 6
GENZYME CORPORATION $120.54 1
Salix Pharmaceuticals, a division of Bausch Health US, LLC $119.44 10
IMPEL PHARMACEUTICALS INC. $114.99 1
SANOFI-AVENTIS U.S. LLC $97.79 4
ITI, Inc. $90.01 3
Amarin Pharma Inc. $88.00 5
Intuitive Surgical, Inc. $86.75 1
Merck Sharp & Dohme LLC $85.81 5
Ironwood Pharmaceuticals, Inc $82.34 4
Boston Scientific Corporation $69.26 1
Regeneron Healthcare Solutions, Inc. $54.81 2
Antares Pharma, Inc. $51.68 3
PFIZER INC. $45.43 2
Almatica Pharma LLC $45.29 3
Allergan, Inc. $43.90 2
Kowa Pharmaceuticals America, Inc. $39.30 3
Astellas Pharma US Inc $27.24 2
CeQur Corporation $25.56 1
Corium, LLC $23.71 1
LEO Pharma Inc. $22.53 1
GlaxoSmithKline, LLC. $22.50 1
Avanir Pharmaceuticals, Inc. $21.20 1
Oyster Point Pharma, Inc. $21.18 1
VBI Vaccines (Delaware) Inc. $19.80 1
Dynavax Technologies Corporation $18.76 1
VIVUS LLC $18.51 1
Takeda Pharmaceuticals U.S.A., Inc. $18.36 1
Galderma Laboratories, L.P. $16.95 1
Paratek Pharmaceuticals, Inc. $15.59 1
INTRA-SANA LABORATORIES $15.21 1
Acerus Pharmaceuticals Corporation $15.02 1

Page 2 of 6; records 51–100 of 258 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, PY2022; 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 258 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1437321932?year=2022&recipient=provider&page=2#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c

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, PY2022; 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 258 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1437321932?year=2022&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
APA 7
IndustryPayments. (2026). MICHAEL M DAO, NPI 1437321932, CMS profile ID 337948. General Payments, PY2022; 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 258 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=2022&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
Bluebook
MICHAEL M DAO, NPI 1437321932, CMS profile ID 337948, IndustryPayments, General Payments, PY2022; 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 258 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c. https://industrypayments.org/provider/npi-1437321932?year=2022&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 · PY2022

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

General Payments · PY2022 · Physicians and non-physician practitioners · CMS publication 2026-06-30

258 matching records · $6,263.60 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 258 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 258.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
UCB, Inc. $25.8210/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 965221473 CMS
Nestle HealthCare Nutrition Inc. $8.7210/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 902773421 CMS
Novo Nordisk Inc $16.4810/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 898824157 CMS
Paratek Pharmaceuticals, Inc. $15.5910/19/2022 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 881637755 CMS
Sun Pharmaceutical Industries Inc. $39.8310/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 947853485 CMS
AstraZeneca Pharmaceuticals LP $17.0610/18/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 915855459 CMS
Lilly USA, LLC $19.9010/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 918268447 CMS
Gilead Sciences, Inc. $25.8410/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 929497525 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $22.5310/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 887395927 CMS
Boston Scientific Corporation $69.2610/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 916629569 CMS
Novartis Pharmaceuticals Corporation $20.3210/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893591635 CMS
ABBVIE INC. $28.6610/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 890828165 CMS
ABBVIE INC. $11.0710/05/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 890828163 CMS
Amgen Inc. $19.7310/05/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 939471483 CMS
Lilly USA, LLC $100.6910/05/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 918248067 CMS
Antares Pharma, Inc. $15.4510/04/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 956825035 CMS
Biohaven Pharmaceutical Holding Company Ltd. $25.6210/04/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 923569753 CMS
Kowa Pharmaceuticals America, Inc. $12.9710/04/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 900429301 CMS
Lilly USA, LLC $20.4009/28/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 918203789 CMS
Mylan Specialty L.P. $4.4809/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 963926153 CMS
Novartis Pharmaceuticals Corporation $5.9109/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893591633 CMS
Novo Nordisk Inc $6.6009/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 898922929 CMS
SANOFI-AVENTIS U.S. LLC $17.4109/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 938802933 CMS
Bayer HealthCare Pharmaceuticals Inc. $14.5009/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 929947919 CMS
LEO Pharma Inc. $22.5309/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 936211651 CMS
Sun Pharmaceutical Industries Inc. $37.0009/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 947853497 CMS
AstraZeneca Pharmaceuticals LP $17.9309/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 915844151 CMS
IMPEL PHARMACEUTICALS INC. $114.9909/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 962323847 CMS
Amarin Pharma Inc. $12.8309/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 913957589 CMS
Horizon Therapeutics plc $14.8009/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 937610831 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $14.3709/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 959429597 CMS
UCB, Inc. $22.8409/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 965221471 CMS
Bayer HealthCare Pharmaceuticals Inc. $13.6509/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 930338013 CMS
PFIZER INC. $27.1009/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 949320923 CMS
Ironwood Pharmaceuticals, Inc $20.3209/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 957933641 CMS
Oyster Point Pharma, Inc. $21.1809/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 946030801 CMS
Allergan, Inc. $28.3009/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 889869655 CMS
Novo Nordisk Inc $5.3209/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 898824149 CMS
Acerus Pharmaceuticals Corporation $15.0209/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 906685761 CMS
Almatica Pharma LLC $19.8009/06/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 896640939 CMS
Novartis Pharmaceuticals Corporation $5.7309/06/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893591631 CMS
Amgen Inc. $19.7809/02/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 939950183 CMS
Gilead Sciences, Inc. $123.8608/31/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 929497537 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $16.5708/31/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 959737089 CMS
Merck Sharp & Dohme LLC $14.4108/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 944359395 CMS
Horizon Therapeutics plc $19.6008/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 937610829 CMS
Bayer HealthCare Pharmaceuticals Inc. $13.5208/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 930240519 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $18.0808/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 887711227 CMS
UCB, Inc. $21.0108/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 908034151 CMS
Gilead Sciences, Inc. $18.0608/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 929497513 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.