NPPES file of Aug 9, 2026

Loan Kim Nguyen, M.D.

Ophthalmology Physician · Fresno, CA

Loan Kim Nguyen, M.D. is an ophthalmology physician with a practice address in Fresno, California, and NPI 1922168715, issued on Dec 11, 2006. Check the license (California A509810, 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
1922168715
Name
Loan Kim Nguyen
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A509810 CA
Self-reported in NPPES; status is on the state search
Practice location
6767 N Fresno St, Fresno, CA 93710
Phone
(559) 432-1000
Enumerated
Dec 11, 2006
Record last updated
Mar 7, 2023
Fax
(559) 432-1034
Medicaid ID
00A509810 CA
Medicare enrollment
Enrolled (PECOS I20090701000483); accepts Medicare assignment
Medical or professional school
Baylor College Of Medicine, 1987
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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Also registered at 6767 N Fresno St

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

  1. David Kaye, M.D.Ophthalmology Physician1124180518
  2. Mai Lee, ODOptometrist1487389805
  3. Aryan Pazirandeh, O.D.Optometrist1235299033

Verify Loan Kim Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A509810
    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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2% fewer Medicare Part D claims than the average ophthalmology physician in 2024

1,485 Medicare Part D claims for 365 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.

  1. Loan Nguyen1,485
  2. Specialty average1,518

Most prescribed

  1. Latanoprost309 claims
  2. Brimonidine Tartrate190 claims
  3. Neomycin-Polymyxin-Dexameth111 claims
  4. Dorzolamide-Timolol98 claims
  5. Rocklatan88 claims
  6. Timolol Maleate77 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): 99.3 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 score92.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%95.0
  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: $260.02

8 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. 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. Loan Nguyen$260.02
  2. Specialty average$4,535.02

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. David B Kaye MD IncFresno, CA

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

Loan Kim Nguyen among 2,899 ophthalmology physician records in California

Loan Kim Nguyen, M.D. 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 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 45% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1987 · median 2001 among the 1,907 with a school on file
  • Record last updated2023 · 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. David Kaye, M.D.Fresno, CA 937101124180518
  2. Animesh Petkar, M.D.Fresno, CA 937101417121054
  3. Frank Bishop, M.D.Fresno, CA 937201538134796
  4. Steven Fogg, M.D.Fresno, CA 937201982666871
  5. Andrea Lanier, M.D.Fresno, CA 937201750343158
  6. Larry Lawrence, M.D.Fresno, CA 937201164425468
  7. William Maxwell, M.D.Fresno, CA 937201205898681
  8. Eric Poulsen, M.D.Fresno, CA 937201003819301

Common questions

What is Loan Kim Nguyen, M.D.'s NPI number?

Loan Kim Nguyen, M.D.'s National Provider Identifier (NPI) is 1922168715, issued on Dec 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Loan Kim Nguyen, M.D. located?

The NPPES record lists a practice address at 6767 N Fresno St, Fresno, CA, 93710. Phone: (559) 432-1000. Providers update this record themselves, so call before visiting.

How can I verify Loan Kim Nguyen, M.D.'s license?

NPPES lists California license number A509810, 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 Loan Kim Nguyen, M.D. prescribe under Medicare Part D?

In 2024, Loan Kim Nguyen, M.D. had 1,485 Medicare Part D claims for 365 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Loan Kim Nguyen, M.D.'s MIPS final score?

The 2023 MIPS final score is 99.3 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.