Hugo Hsu, MD
NPI 1336153816 · Ophthalmology Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hugo Hsu, MD is a Ophthalmology Physician provider in Pasadena, CA (NPI 1336153816).
Provider details
- NPI number
- 1336153816
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A74891 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
2,191 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 Problem Focused Exam of Visual System92012 | 507 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 389 | $139 |
| Established Patient Complete Exam of Visual System92014 | 277 | $140 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 206 | $48 |
| Ct Scan of Cornea92025 | 172 | $40 |
| Imaging of Retina92134 | 117 | $44 |
| Removal of Cataract With Insertion of Prosthetic Lens |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 618 | 218 |
| Moxifloxacin Hclbrand: Moxifloxacin | 271 | 125 |
| Erythromycin Basebrand: Erythromycin | 210 | 92 |
| Ketorolac Tromethamine | 146 | 88 |
| Cyclosporine | 75 | 25 |
| Cyclosporinebrand: Restasis | 64 | 20 |
| Atropine Sulfate | 50 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$47 across 2 records (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
- 2006-07-28
- Last updated
- 2025-06-27
- Certified
- 2025-01-31
Frequently asked questions
- What is Hugo Hsu's NPI number?
- Hugo Hsu's National Provider Identifier (NPI) is 1336153816, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hugo Hsu's specialty?
- Hugo Hsu is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Hugo Hsu located?
- Hugo Hsu's practice location on file with NPPES is 625 S Fair Oaks Ave Ste 280, Pasadena, CA 91105-2670.
- What is Hugo Hsu's phone number?
- The practice phone number listed in the NPPES registry for Hugo Hsu is (626) 817-4747.
- Does Hugo Hsu accept Medicare?
- Hugo Hsu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hugo Hsu's NPI active?
- Yes — Hugo Hsu's NPI (1336153816) is active in the NPPES registry as of the last update on 2025-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.