NPPES file of Aug 9, 2026

Bich Ngoc Trinh, O.D

Optometrist · Fremont, CA

Bich Ngoc Trinh, O.D is an optometrist with a practice address in Fremont, California, and NPI 1215215686, issued on Aug 2, 2011. Check the license 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
1215215686
Name
Bich Ngoc Trinh
Credential
O.D
Primary taxonomy
Optometrist 152W00000X
License number
707 NV
Self-reported in NPPES; status is on the state search
Practice location
40924 Fremont Blvd, Fremont, CA 94538
Phone
(510) 770-8040
Enumerated
Aug 2, 2011
Record last updated
Feb 11, 2022
Medicare enrollment
Enrolled (PECOS I20130618000698); accepts Medicare assignment
Medical or professional school
Southern College Of Optometry, 2011
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 Bich Ngoc Trinh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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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96% fewer Medicare Part D claims than the average optometrist in 2024

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

  1. Bich Trinh12
  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.

Bich Ngoc Trinh among 8,308 optometrist records in California

Bich Ngoc Trinh, 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 2011, is newer than 61% of them.

  • NPI issued2011 · 61% of these records are older, 36% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2011 · median 2008 among the 3,573 with a school on file
  • Record last updated2022 · 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).

75 optometrist records list a practice address in Fremont

They are 75 of the 4,749 NPPES records with a practice address in Fremont, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Harry Chan, O.D.Fremont, CA 945381750331237
  2. Deborah Chew, ODFremont, CA 945381821057951
  3. Sara Chiu, O.D.Fremont, CA 945381982701595
  4. Victor Gin, ODFremont, CA 945381972562098
  5. Brian Gin, O.D.Fremont, CA 945381902813322
  6. Robert Halupka, ODFremont, CA 945381821187956
  7. Katherine Harano, O.D.Fremont, CA 945381417947110
  8. Virginia Ko, O.D.Fremont, CA 945381982792651

Common questions

What is Bich Ngoc Trinh, O.D's NPI number?

Bich Ngoc Trinh, O.D's National Provider Identifier (NPI) is 1215215686, issued on Aug 2, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Bich Ngoc Trinh, O.D located?

The NPPES record lists a practice address at 40924 Fremont Blvd, Fremont, CA, 94538. Phone: (510) 770-8040. Providers update this record themselves, so call before visiting.

How can I verify Bich Ngoc Trinh, O.D's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Bich Ngoc Trinh, O.D prescribe under Medicare Part D?

In 2024, Bich Ngoc Trinh, O.D had 12 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.