Amiey K. Chung To, OD
Optometrist · Riverside, CA
Amiey K. Chung To, OD is an optometrist with a practice address in Riverside, California, and NPI 1225186166, issued on Jan 8, 2007. Check the license (California OPT12285, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Amiey K. Chung To
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OPT12285 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10800 Magnolia Ave, Riverside, CA 92505
- Phone
- (909) 353-2000
- Enumerated
- Jan 8, 2007
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 10800 Magnolia Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Abapo, MDPediatrics Physician1841348786
- Hussein Abdulrassoul, MDOrthopaedic Surgery Physician1972123891
- Kimberly Adams, PA-CMedical Physician Assistant1053522870
- Alfredo Aguiar, PAPhysician Assistant1043368970
- Michael Aguinaldo, M.D.Pediatrics Physician1851531487
- Maria Aguirre, MDPediatrics Physician1295806255
Verify Amiey K. Chung To in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT12285Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average optometrist in 2024
132 Medicare Part D claims for 31 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
Most prescribed
- Latanoprost84 claims
- Dorzolamide-Timolol11 claims
- Timolol Maleate11 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.
Amiey K. Chung To among 8,308 optometrist records in California
Amiey K. Chung To, OD 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 2007, is newer than 34% of them.
- NPI issued2007 · 34% of these records are older, 46% 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).
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
- Mary Cavanaugh, ODRiverside, CA 925051033267026
- Suzanne Dourte, ODRiverside, CA 925051679632392
- Stephen Hart, ODRiverside, CA 925051073672770
- Subin Kim, ODRiverside, CA 925051730237629
- Susan Miyabe, ODRiverside, CA 925051104985837
- John Murphy, ODRiverside, CA 925051578611463
- Joshua Prager, ODRiverside, CA 925051255490967
- Marisa Pramono, ODRiverside, CA 925051881753515
Common questions
What is Amiey K. Chung To, OD's NPI number?
Amiey K. Chung To, OD's National Provider Identifier (NPI) is 1225186166, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Amiey K. Chung To, OD located?
The NPPES record lists a practice address at 10800 Magnolia Ave, Riverside, CA, 92505. Phone: (909) 353-2000. Providers update this record themselves, so call before visiting.
How can I verify Amiey K. Chung To, OD's license?
NPPES lists California license number OPT12285, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Amiey K. Chung To, OD prescribe under Medicare Part D?
In 2024, Amiey K. Chung To, OD had 132 Medicare Part D claims for 31 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.