Yen Cheng Hsia, MD
Ophthalmology Physician · Walnut Creek, CA
Yen Cheng Hsia, MD is an ophthalmology physician with a practice address in Walnut Creek, California, and NPI 1326468661, issued on Apr 25, 2014. Check the license (California A133168, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Yen Cheng Hsia
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A133168 CA
Self-reported in NPPES; status is on the state search - Practice location
- 350 N Wiget LN Ste 200, Walnut Creek, CA 94598
- Phone
- (925) 934-7800
- Enumerated
- Apr 25, 2014
- Record last updated
- Jan 14, 2026
- Medicare enrollment
- Enrolled (PECOS I20170711001800); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2013
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 350 N Wiget LN Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yau Han Eva Chung, ODOptometrist1275373417
- David Gilbert, MDOphthalmology Physician1033297536
Verify Yen Cheng Hsia in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A133168Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average ophthalmology physician in 2024
3,415 Medicare Part D claims for 700 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Latanoprost624 claims
- Dorzolamide-Timolol385 claims
- Timolol Maleate299 claims
- Prednisolone Acetate279 claims
- Brimonidine Tartrate238 claims
- Moxifloxacin211 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,350.43
26 payments; by number, the most common kind was food and beverage; the largest payer was New World Medical,inc. 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.
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
- David D Gilbert MD IncWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yen Cheng Hsia among 2,899 ophthalmology physician records in California
Yen Cheng Hsia, 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 2014, is newer than 82% of them.
- NPI issued2014 · 82% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2013 · median 2001 among the 1,907 with a school on file
- Record last updated2026 · 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.
All 2,899 in California → Every provider in Walnut Creek → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- David Demartini, M.D.Walnut Creek, CA 945981437134855
- James Dowling, M.D.Walnut Creek, CA 945981891757506
- Vahid Feiz, M.D.Walnut Creek, CA 945981083698732
- David Gilbert, MDWalnut Creek, CA 945981033297536
- Jenny Jacq, MDWalnut Creek, CA 945981477508927
- Ethan Kutzscher, MDWalnut Creek, CA 945981700881661
- Michelle Nee, MDWalnut Creek, CA 945981093893182
- Stephanie Po, MDWalnut Creek, CA 945981003994187
Common questions
What is Yen Cheng Hsia, MD's NPI number?
Yen Cheng Hsia, MD's National Provider Identifier (NPI) is 1326468661, issued on Apr 25, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Yen Cheng Hsia, MD located?
The NPPES record lists a practice address at 350 N Wiget LN Ste 200, Walnut Creek, CA, 94598. Phone: (925) 934-7800. Providers update this record themselves, so call before visiting.
How can I verify Yen Cheng Hsia, MD's license?
NPPES lists California license number A133168, 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 Yen Cheng Hsia, MD prescribe under Medicare Part D?
In 2024, Yen Cheng Hsia, MD had 3,415 Medicare Part D claims for 700 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Yen Cheng Hsia, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.