NPPES file of Aug 9, 2026

Nhanhau Ngo, M.D.

Family Medicine Physician · Garden Grove, CA

Nhanhau Ngo, M.D. is a family medicine physician with a practice address in Garden Grove, California, and NPI 1336184316, issued on Jun 16, 2006. Check the license (California A61105, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336184316
Name
Nhanhau Ngo
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A61105 CA
Self-reported in NPPES; status is on the state search
Practice location
12692 Brookhurst Street, Garden Grove, CA 92840
Phone
(714) 657-7100
Enumerated
Jun 16, 2006
Record last updated
Mar 27, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(714) 657-7102
Medicare enrollment
Enrolled (PECOS I20050826000296); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 1995
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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Verify Nhanhau Ngo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A61105
    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

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2.1 times the Medicare Part D claims of the average family medicine physician in 2024

7,540 Medicare Part D claims for 433 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 31 claims were for opioids.

  1. Nhanhau Ngo7,540
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium517 claims
  2. Rosuvastatin Calcium456 claims
  3. Losartan Potassium420 claims
  4. Amlodipine Besylate281 claims
  5. Glyxambi203 claims
  6. Montelukast Sodium187 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.

The MIPS final score for 2023 (Medicare payment program): 80.9 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score62.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $222.72

6 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nhanhau Ngo$222.72
  2. Specialty average$902.55

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

Bills Medicare through 2 group practices

  1. Family Choice Aco IncWestminster, CA
  2. Nhanhau Ngo MD IncGarden Grove, CA

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

Nhanhau Ngo among 17,133 family medicine physician records in California

Nhanhau Ngo, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1995 · median 2005 among the 10,652 with a school on file
  • Record last updated2013 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

69 family medicine physician records list a practice address in Garden Grove

They are 69 of the 4,572 NPPES records with a practice address in Garden Grove, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Vincent Ayroso, DOGarden Grove, CA 928401891993168
  2. Phillip Castellano, MDGarden Grove, CA 928401467529321
  3. Paul Johnson, MDGarden Grove, CA 928401497790661
  4. Chan Kim, MDGarden Grove, CA 928401679513550
  5. Khiem Lai, M.D.Garden Grove, CA 928401538165576
  6. Nancy Lee-Hata, MDGarden Grove, CA 928401235120734
  7. Gerald Lim, M.D.Garden Grove, CA 928401427091958
  8. Michael Malouf, M.D.Garden Grove, CA 928401578549234

Common questions

What is Nhanhau Ngo, M.D.'s NPI number?

Nhanhau Ngo, M.D.'s National Provider Identifier (NPI) is 1336184316, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nhanhau Ngo, M.D. located?

The NPPES record lists a practice address at 12692 Brookhurst Street, Garden Grove, CA, 92840. Phone: (714) 657-7100. Providers update this record themselves, so call before visiting.

How can I verify Nhanhau Ngo, M.D.'s license?

NPPES lists California license number A61105, 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 Nhanhau Ngo, M.D. prescribe under Medicare Part D?

In 2024, Nhanhau Ngo, M.D. had 7,540 Medicare Part D claims for 433 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Nhanhau Ngo, M.D.'s MIPS final score?

The 2023 MIPS final score is 80.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.

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.