Derrick Lai
Optometrist · Riverside, CA
Derrick Lai is an optometrist with a practice address in Riverside, California, and NPI 1235825886, issued on Apr 17, 2023. Check the license (California OPT35491-TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Derrick Lai
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OPT35491-TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 4605 Brockton Ave Ste 100, Riverside, CA 92506
- Phone
- (951) 686-4911
- Enumerated
- Apr 17, 2023
- Record last updated
- Aug 21, 2024
- Medicare enrollment
- Enrolled (PECOS I20240916004044); accepts Medicare assignment
- Medical or professional school
- University Of California - School Of Optometry, 2023
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 4605 Brockton Ave Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Khalid Aldaas, MDOphthalmology Physician1992325989
- Jennifer Hua, ODOptometrist1215384532
Verify Derrick Lai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT35491-TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average optometrist in 2024
33 Medicare Part D claims for 21 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of 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: $257.65
6 payments; by number, the most common kind was food and beverage; the largest payer was Johnson & Johnson Vision Care, Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Riverside Eye Specialists Medical Group IncRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derrick Lai among 8,308 optometrist records in California
Derrick Lai 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 2023, is newer than 92% of them.
- NPI issued2023 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2023 · median 2008 among the 3,573 with a school on file
- Record last updated2024 · 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).
Optometrist providers in California
There are 8,308 optometrist records in California.
All 8,308 in California → Every provider in Riverside → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Pamella Chang, O.D.Riverside, CA 925061912492745
- Ya-Li Chu, O.D.Riverside, CA 925061578017000
- Sandra Davidson, O.D.Riverside, CA 925061164427282
- Mariellen Ebie, O.D.Riverside, CA 925061861621393
- Nicole-Nincho Ha, O.D.Riverside, CA 925061609992940
- Jennifer Hua, ODRiverside, CA 925061215384532
- Lisa Keltner, O.D.Riverside, CA 925061629072533
- Janet Kohtz, O.D.Riverside, CA 925061013027390
Common questions
What is Derrick Lai's NPI number?
Derrick Lai's National Provider Identifier (NPI) is 1235825886, issued on Apr 17, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Derrick Lai located?
The NPPES record lists a practice address at 4605 Brockton Ave Ste 100, Riverside, CA, 92506. Phone: (951) 686-4911. Providers update this record themselves, so call before visiting.
How can I verify Derrick Lai's license?
NPPES lists California license number OPT35491-TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Derrick Lai prescribe under Medicare Part D?
In 2024, Derrick Lai had 33 Medicare Part D claims for 21 beneficiaries; 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.