Rex L.c. Chu, O.D.
Optometrist · Chino, CA
Rex L.c. Chu, O.D. is an optometrist with a practice address in Chino, California, and NPI 1588694137, issued on Jul 3, 2006. Check the license (California OPT 11120TPA, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rex L.c. Chu
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OPT 11120TPA CA
Self-reported in NPPES; status is on the state search - Practice location
- 13788 Roswell Ave, Chino, CA 91710
- Phone
- (909) 627-5598
- Enumerated
- Jul 3, 2006
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (909) 627-5298
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 13788 Roswell Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rex L.c. Chu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT 11120TPACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average optometrist in 2024
15 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 73% of claims.
Most prescribed
- Cyclosporine11 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.
Rex L.c. Chu among 8,308 optometrist records in California
Rex L.c. Chu, 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 66% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2021 · 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).
26 optometrist records list a practice address in Chino
They are 26 of the 1,097 NPPES records with a practice address in Chino, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Chino → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Kerry Anderson, O.D.Chino, CA 917101851404628
- Jana Chen, O.D.Chino, CA 917101174696652
- H Edelson, O.D.Chino, CA 917101386701068
- Anh Hinh, ODChino, CA 917101457317091
- Jean Hoang, ODChino, CA 917101902980147
- Mia Hung, O.D.Chino, CA 917101720191505
- Shameem Khan, O.D.Chino, CA 917101669523734
- Lawrence Morris, O.D.Chino, CA 917101205978848
Common questions
What is Rex L.c. Chu, O.D.'s NPI number?
Rex L.c. Chu, O.D.'s National Provider Identifier (NPI) is 1588694137, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Rex L.c. Chu, O.D. located?
The NPPES record lists a practice address at 13788 Roswell Ave, Chino, CA, 91710. Phone: (909) 627-5598. Providers update this record themselves, so call before visiting.
How can I verify Rex L.c. Chu, O.D.'s license?
NPPES lists California license number OPT 11120TPA, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Rex L.c. Chu, O.D. prescribe under Medicare Part D?
In 2024, Rex L.c. Chu, O.D. had 15 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.