Katherine Chuang, MD
NPI 1356831929 · Ophthalmology Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Chuang, MD is a Ophthalmology Physician provider in Irvine, CA (NPI 1356831929).
Provider details
- NPI number
- 1356831929
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 11020595A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 463 | 294 |
| Cyclosporine | 281 | 108 |
| Ofloxacin | 123 | 74 |
| Ketorolac Tromethamine | 115 | 69 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 107 | 75 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 101 | 54 |
| Latanoprost | 96 | 47 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$34 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1160 W Michigan StIndianapolis, IN 46202-5209Phone: (317) 944-2020
Registry dates
- Enumerated
- 2018-05-18
- Last updated
- 2023-10-27
- Certified
- 2022-11-04
Frequently asked questions
- What is Katherine Chuang's NPI number?
- Katherine Chuang's National Provider Identifier (NPI) is 1356831929, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Chuang's specialty?
- Katherine Chuang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Chuang located?
- Katherine Chuang's practice location on file with NPPES is 850 Health Sciences Rd, Irvine, CA 92617-3058.
- What is Katherine Chuang's phone number?
- The practice phone number listed in the NPPES registry for Katherine Chuang is (949) 824-2020.
- Does Katherine Chuang accept Medicare?
- Katherine Chuang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Chuang's NPI active?
- Yes — Katherine Chuang's NPI (1356831929) is active in the NPPES registry as of the last update on 2023-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.