NPPES file of Aug 9, 2026

Dagny Zhu Luong, MD

Ophthalmology Physician · Fullerton, CA

Dagny Zhu Luong, MD is an ophthalmology physician with a practice address in Fullerton, California, and NPI 1790044626, issued on May 12, 2012. Check the license (California A127715, 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
1790044626
Name
Dagny Zhu Luong
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
A127715 CA
ME127541 FL
Self-reported in NPPES; status is on the state search
Practice location
1400 N Harbor Blvd, Fullerton, CA 92835
Phone
(714) 831-0091
Enumerated
May 12, 2012
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1400 N Harbor Blvd

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

  1. Priscilla Armstrong, PSYDClinical Neuropsychologist1255425054
  2. Joan Danto, LCSWClinical Social Worker1275645285
  3. Uma Rao, MDInternal Medicine Physician1043371479
  4. Mark Schnitzer, MDNeurological Surgery Physician1740382951
  5. Margaret Slaven, PSY.D.Clinical Psychologist1477628923

Verify Dagny Zhu Luong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A127715
    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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98% fewer Medicare Part D claims than the average ophthalmology physician in 2024

32 Medicare Part D claims for 14 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D.

  1. Dagny Luong32
  2. Specialty average1,518

Most prescribed

  1. Latanoprost14 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: $127,106.85

167 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dagny Luong$127,107
  2. Specialty average$4,535

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

Dagny Zhu Luong among 2,899 ophthalmology physician records in California

Dagny Zhu Luong, MD is one of 2,899 ophthalmology 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 2012, is newer than 78% of them.

  • NPI issued2012 · 78% of these records are older, 20% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2018 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. J Berbos, M.D.Fullerton, CA 928351467596114
  2. Matthew Kim, M.D.Fullerton, CA 928351770514465
  3. Omar Krad, M.D.Fullerton, CA 928351669635132
  4. William Mosier, MDFullerton, CA 928351063553378
  5. Matthew NobeFullerton, CA 928351821313461
  6. William Peloquin, M.D.Fullerton, CA 928351932261336
  7. Leslie Pham, MDFullerton, CA 928351568500411
  8. Lam Phung, MDFullerton, CA 928351992231682

Common questions

What is Dagny Zhu Luong, MD's NPI number?

Dagny Zhu Luong, MD's National Provider Identifier (NPI) is 1790044626, issued on May 12, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Dagny Zhu Luong, MD located?

The NPPES record lists a practice address at 1400 N Harbor Blvd, Fullerton, CA, 92835. Phone: (714) 831-0091. Providers update this record themselves, so call before visiting.

How can I verify Dagny Zhu Luong, MD's license?

NPPES lists California license number A127715, 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 Dagny Zhu Luong, MD prescribe under Medicare Part D?

In 2024, Dagny Zhu Luong, MD had 32 Medicare Part D claims for 14 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.

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.