Homer Chiang
Ophthalmology Physician · Santa Clara, CA
Homer Chiang is an ophthalmology physician with a practice address in Santa Clara, California, and NPI 1700310265, issued on Apr 11, 2017. Check the license (California A171994, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Homer Chiang
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A171994 CA
Self-reported in NPPES; status is on the state search - Practice location
- 700 Lawrence Expy, Santa Clara, CA 95051
- Phone
- (408) 851-1000
- Enumerated
- Apr 11, 2017
- Record last updated
- Jul 19, 2022
- Medicare enrollment
- Enrolled (PECOS I20210519002992); accepts Medicare assignment
- Medical or professional school
- University Of Vermont College Of Medicine, 2017
- Entity
- Type 1 · individual
Also registered at 700 Lawrence Expy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rose Abendroth, P.A-C PHDPhysician Assistant1568471126
- Joseph Adams, PHARMD.Pharmacist1851625024
- Netali AdielDoula1003770652
- Abdallah Al-ObaidiStudent in an Organized Health Care Education/Training Program1255133781
- Andrea Mae AlafrizPharmacist1770450967
- Andria AlbertStudent in an Organized Health Care Education/Training Program1992565493
Verify Homer Chiang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A171994Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,501 Medicare Part D claims for 416 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Prednisolone Acetate290 claims
- Moxifloxacin248 claims
- Diclofenac Sodium244 claims
- Latanoprost242 claims
- Dorzolamide-Timolol122 claims
- Cyclosporine57 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSanta Clara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
Other ophthalmology physician records in California
- Sam Abbassi, MD, MSWest Hills, CA1881937720
- Richard Abbott, M.D.San Francisco, CA1346276573
- Jean-Paul Abboud, M.D., PH.D.Del Mar, CA1760776728
- Nizar Abdelfattah, MDPasadena, CA1801359393
- Parastou Abedi, MDAliso Viejo, CA1720067333
- Shahla Abedi, MDAliso Viejo, CA1467431072
- Lilit Ablabutyan, M.D.Glendale, CA1497013064
- Nathan Abraham, M.D.Valencia, CA1306224456
- James Abrams, M.D.San Bruno, CA1912903329
- Adam Abroms, MDWestlake Village, CA1497743702
Common questions
What is Homer Chiang's NPI number?
Homer Chiang's National Provider Identifier (NPI) is 1700310265, issued on Apr 11, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Homer Chiang located?
The NPPES record lists a practice address at 700 Lawrence Expy, Santa Clara, CA, 95051. Phone: (408) 851-1000. Providers update this record themselves, so call before visiting.
How can I verify Homer Chiang's license?
NPPES lists California license number A171994, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Homer Chiang prescribe under Medicare Part D?
In 2024, Homer Chiang had 1,501 Medicare Part D claims for 416 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.