Homer Chiang
NPI 1700310265 · Ophthalmology Physician · Santa Clara, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Homer Chiang is a Ophthalmology Physician provider in Santa Clara, CA (NPI 1700310265).
Provider details
- NPI number
- 1700310265
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A171994 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 290 | 176 |
| Moxifloxacin Hclbrand: Moxifloxacin | 248 | 159 |
| Diclofenac Sodium | 244 | 154 |
| Latanoprost | 242 | 112 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 122 | 55 |
| Cyclosporine | 57 | 23 |
| Brimonidine Tartrate | 51 | 23 |
Practice location
Mailing address
Additional practice locations (2)
- 300 Pasteur DrStanford, CA 94305-2200Phone: (650) 723-4000
- 4502 Medical DrSan Antonio, TX 78229-4402Phone: (210) 358-3555Fax: (210) 702-4239
Registry dates
- Enumerated
- 2017-04-11
- Last updated
- 2022-07-19
- Certified
- 2022-07-19
Frequently asked questions
- What is Homer Chiang's NPI number?
- Homer Chiang's National Provider Identifier (NPI) is 1700310265, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Homer Chiang's specialty?
- Homer Chiang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Homer Chiang located?
- Homer Chiang's practice location on file with NPPES is 700 Lawrence Expy, Santa Clara, CA 95051-5173.
- What is Homer Chiang's phone number?
- The practice phone number listed in the NPPES registry for Homer Chiang is (408) 851-1000.
- Does Homer Chiang accept Medicare?
- Homer Chiang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Homer Chiang's NPI active?
- Yes — Homer Chiang's NPI (1700310265) is active in the NPPES registry as of the last update on 2022-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.