NPPES file of Aug 9, 2026

Hugo Yeo-Chiao Hsu, MD

Ophthalmology Physician · Pasadena, CA

Hugo Yeo-Chiao Hsu, MD is an ophthalmology physician with a practice address in Pasadena, California, and NPI 1336153816, issued on Jul 28, 2006. Check the license (California A74891, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336153816
Name
Hugo Yeo-Chiao Hsu
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A74891 CA
Self-reported in NPPES; status is on the state search
Practice location
625 S Fair Oaks Ave Ste 280, Pasadena, CA 91105
Phone
(626) 817-4747
Enumerated
Jul 28, 2006
Record last updated
Jun 27, 2025
Fax
(626) 817-4748
Medicare enrollment
Enrolled (PECOS I20101118001200); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 1999
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 625 S Fair Oaks Ave Ste 280

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jane Chan, MDNeuro-ophthalmology Physician1528046216
  2. Josephine Hwang, MDPulmonary Disease Physician1346800406
  3. Michael Ip, MDOphthalmology Physician1982670402
  4. Jonathan Jalali, MDAllergy & Immunology (Internal Medicine) Physician1548840929
  5. Alice Kim, MDFamily Medicine Physician1306580097
  6. David Macpherson, M.D.Ophthalmology Physician1396276861

Verify Hugo Yeo-Chiao Hsu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A74891
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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42% more Medicare Part D claims than the average ophthalmology physician in 2024

2,152 Medicare Part D claims for 413 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.

  1. Hugo Hsu2,152
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate618 claims
  2. Moxifloxacin271 claims
  3. Erythromycin210 claims
  4. Ketorolac Tromethamine146 claims
  5. Cyclosporine75 claims
  6. Restasis64 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 74.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score85.0
  2. Costout of 100 · 30%30.2
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $46.98

2 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hugo Hsu$46.98
  2. Specialty average$4,535.02

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupLos Angeles, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Hugo Yeo-Chiao Hsu among 2,899 ophthalmology physician records in California

Hugo Yeo-Chiao Hsu, MD is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 45% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1999 · median 2001 among the 1,907 with a school on file
  • Record last updated2025 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Rizwan Bhatti, M.D.Pasadena, CA 911051588724108
  2. Gerald Bowns, MDPasadena, CA 911051225000672
  3. Joseph Davidson, M.D.Pasadena, CA 911051467487926
  4. Jeffrey Hong, MDPasadena, CA 911051922049055
  5. Michael Ip, MDPasadena, CA 911051982670402
  6. John Irvine, M.D.Pasadena, CA 911051316009103
  7. Marta Mora, M.D.Pasadena, CA 911051093766651
  8. Srinivas Sadda, MDPasadena, CA 911051477614790

Common questions

What is Hugo Yeo-Chiao Hsu, MD's NPI number?

Hugo Yeo-Chiao Hsu, MD's National Provider Identifier (NPI) is 1336153816, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Hugo Yeo-Chiao Hsu, MD located?

The NPPES record lists a practice address at 625 S Fair Oaks Ave Ste 280, Pasadena, CA, 91105. Phone: (626) 817-4747. Providers update this record themselves, so call before visiting.

How can I verify Hugo Yeo-Chiao Hsu, MD's license?

NPPES lists California license number A74891, 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 Hugo Yeo-Chiao Hsu, MD prescribe under Medicare Part D?

In 2024, Hugo Yeo-Chiao Hsu, MD had 2,152 Medicare Part D claims for 413 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Hugo Yeo-Chiao Hsu, MD's MIPS final score?

The 2023 MIPS final score is 74.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.