Henry Duong
NPI 1831508977 · Optometrist · Arcadia, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Henry Duong is a Optometrist provider in Arcadia, CA (NPI 1831508977).
Provider details
- NPI number
- 1831508977
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 15047 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
735 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 180 | $102 |
| Established Patient Complete Exam of Visual System92014 | 151 | $144 |
| Imaging of Optic Nerve92133 | 84 | $39 |
| Imaging of Retina92134 | 77 | $46 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 77 | $185 |
| Exam of Visual Field With Extended Testing92083 | 75 | $74 |
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 |
|---|---|---|
| Latanoprost | 758 | 218 |
| Azelastine Hcl | 318 | 152 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 142 | 44 |
| Timolol Maleate | 105 | 36 |
| Brimonidine Tartrate | 86 | 31 |
| Dorzolamide Hcl | 55 | 24 |
| Brimonidine Tartratebrand: Alphagan P | 34 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 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
Registry dates
- Enumerated
- 2014-08-02
- Last updated
- 2025-05-27
- Certified
- 2025-05-27
Frequently asked questions
- What is Henry Duong's NPI number?
- Henry Duong's National Provider Identifier (NPI) is 1831508977, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Henry Duong's specialty?
- Henry Duong is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Henry Duong located?
- Henry Duong's practice location on file with NPPES is 101 Wheeler Ave Ste a, Arcadia, CA 91006-3216.
- What is Henry Duong's phone number?
- The practice phone number listed in the NPPES registry for Henry Duong is (626) 254-9933.
- Does Henry Duong accept Medicare?
- Henry Duong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Henry Duong's NPI active?
- Yes — Henry Duong's NPI (1831508977) is active in the NPPES registry as of the last update on 2025-05-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.