NPPES file of Aug 9, 2026

Hao Ngan Tran, O.D.

Optometrist · Los Altos, CA

Hao Ngan Tran, O.D. is an optometrist with a practice address in Los Altos, California, and NPI 1639562614, issued on Mar 14, 2015. Check the license (California 15445, as entered in NPPES) with the California board that licenses this profession; 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
1639562614
Name
Hao Ngan Tran
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
15445 CA
Self-reported in NPPES; status is on the state search
Practice location
2225 Grant RD Ste 2, Los Altos, CA 94024
Phone
(408) 376-2700
Enumerated
Mar 14, 2015
Record last updated
Aug 25, 2017 (not updated in 9 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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Verify Hao Ngan Tran in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 15445
    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
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95% fewer Medicare Part D claims than the average optometrist in 2024

13 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Hao Tran13
  2. Specialty average277

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.

Hao Ngan Tran among 8,308 optometrist records in California

Hao Ngan Tran, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 71% of them.

  • NPI issued2015 · 71% of these records are older, 27% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2017 · 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 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

15 optometrist records list a practice address in Los Altos

They are 15 of the 718 NPPES records with a practice address in Los Altos, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Morvari Ahi, O.D.Los Altos, CA 940241548651565
  2. Susan Lodenquai, O.D.Los Altos, CA 940241336146257
  3. Ann ChangMenlo Park, CA 940251114300084
  4. Lisa Delos Santos, O.D.Menlo Park, CA 940251730201294
  5. Jessie Hwang, O.D.Menlo Park, CA 940251083766810
  6. Lenna KhayatMenlo Park, CA 940251982003620
  7. Spencer Lau, O.D.Menlo Park, CA 940251740351105
  8. Brian Quan, O.D.Menlo Park, CA 940251144371451

Common questions

What is Hao Ngan Tran, O.D.'s NPI number?

Hao Ngan Tran, O.D.'s National Provider Identifier (NPI) is 1639562614, issued on Mar 14, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Hao Ngan Tran, O.D. located?

The NPPES record lists a practice address at 2225 Grant RD Ste 2, Los Altos, CA, 94024. Phone: (408) 376-2700. Providers update this record themselves, so call before visiting.

How can I verify Hao Ngan Tran, O.D.'s license?

NPPES lists California license number 15445, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Hao Ngan Tran, O.D. prescribe under Medicare Part D?

In 2024, Hao Ngan Tran, O.D. had 13 Medicare Part D claims; the average among optometrist prescribers was 277. 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.