NPPES file of Aug 9, 2026

Michael Minh Dao, M.D.

Internal Medicine Physician · Garden Grove, CA

Michael Minh Dao, M.D. is an internal medicine physician with a practice address in Garden Grove, California, and NPI 1437321932, issued on Mar 25, 2008. Check the license (California A51334, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1437321932
Name
Michael Minh Dao
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A51334 CA
Self-reported in NPPES; status is on the state search
Practice location
9191 Westminster Ave, Garden Grove, CA 92844
Phone
(714) 899-2000
Enumerated
Mar 25, 2008
Record last updated
Mar 25, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicaid ID
00A513340 CA
Medicare enrollment
Enrolled (PECOS I20060317000551); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →

Also registered at 9191 Westminster Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Angelline DaoPharmacist1700416674
  2. Christopher Dinh, D.D.SGeneral Practice Dentistry1699863407
  3. Helen Do, NURSE PRACTITIONERFamily Nurse Practitioner1386034296
  4. Jeffrey Ho, D.O.Physical Medicine & Rehabilitation Physician1316986045
  5. Giap Le, O.D.Optometrist1407046386
  6. Tuan Le, P.A.Medical Physician Assistant1417210204

Verify Michael Minh Dao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A51334    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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16.0 times the Medicare Part D claims of the average internal medicine physician in 2024

50,680 Medicare Part D claims for 1,853 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 1,317 claims were for opioids.

  1. Michael Dao50,680
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium2,477 claims
  2. Losartan Potassium2,144 claims
  3. Amlodipine Besylate1,689 claims
  4. Pantoprazole Sodium1,531 claims
  5. Montelukast Sodium1,516 claims
  6. Gabapentin1,291 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $7,580.36

302 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Dao$7,580.36
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Dao Medical Group IncGarden Grove, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael Minh Dao among 17,696 internal medicine physician records in California

Michael Minh Dao, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 56% of them.

  • NPI issued2008 · 56% of these records are older, 40% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1990 · median 2004 among the 11,065 with a school on file
  • Record last updated2008 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

39 internal medicine physician records list a practice address in Garden Grove

They are 39 of the 4,572 NPPES records with a practice address in Garden Grove, and 17,696 internal medicine physician records in California.

All 17,696 in California → Every provider in Garden Grove → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Robert Ha, MDGarden Grove, CA 928441750302188
  2. Son Le, M.D.Garden Grove, CA 928441861441552
  3. Tam Le, MDGarden Grove, CA 928441336381607
  4. Daniel Luong, M.D.Garden Grove, CA 928441811420508
  5. Jae Man Park, M.D.Garden Grove, CA 928441669628228
  6. Dai Pham, M.D.Garden Grove, CA 928441730542192
  7. Hung Quan, MDGarden Grove, CA 928441639263023
  8. Sarah Strube, DOGarden Grove, CA 928441124359138

Common questions

What is Michael Minh Dao, M.D.'s NPI number?

Michael Minh Dao, M.D.'s National Provider Identifier (NPI) is 1437321932, issued on Mar 25, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Michael Minh Dao, M.D. located?

The NPPES record lists a practice address at 9191 Westminster Ave, Garden Grove, CA, 92844. Phone: (714) 899-2000. Providers update this record themselves, so call before visiting.

How can I verify Michael Minh Dao, M.D.'s license?

NPPES lists California license number A51334, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Michael Minh Dao, M.D. prescribe under Medicare Part D?

In 2024, Michael Minh Dao, M.D. had 50,680 Medicare Part D claims for 1,853 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.