Abby Chih-Yu Hsu, O.D.
Optometrist · Fremont, CA
Abby Chih-Yu Hsu, O.D. is an optometrist with a practice address in Fremont, California, and NPI 1952724437, issued on Feb 4, 2014. Check the license (California 14852, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Abby Chih-Yu Hsu
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 14852 CA
Self-reported in NPPES; status is on the state search - Practice location
- 721 Mission Villa Ter, Fremont, CA 94539
- Phone
- (510) 676-9190
- Enumerated
- Feb 4, 2014
- Record last updated
- Feb 4, 2014 (not updated in 12 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Abby Chih-Yu Hsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 14852Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Abby Chih-Yu Hsu among 8,308 optometrist records in California
Abby Chih-Yu Hsu, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2014, is newer than 68% of them.
- NPI issued2014 · 68% of these records are older, 29% newer
- In a Medicare fileNo · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2014 · 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 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
75 optometrist records list a practice address in Fremont
They are 75 of the 4,749 NPPES records with a practice address in Fremont, and 8,308 optometrist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 8,308 in California → Every provider in Fremont → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Tina Chang, O.D., M.S.Fremont, CA 945391427212497
- Jeanne Christine Chang, O.D.Fremont, CA 945391609006261
- Julie Ching, O.D.Fremont, CA 945391760817233
- Harren Chu, O.D.Fremont, CA 945391124043682
- Michael Fauria, O.D.Fremont, CA 945391841344322
- Lily Huynh, O.D.Fremont, CA 945391982982849
- Louise Lee, O.D.Fremont, CA 945391336292374
- Marvin Mah, O.D.Fremont, CA 945391245228402
Common questions
What is Abby Chih-Yu Hsu, O.D.'s NPI number?
Abby Chih-Yu Hsu, O.D.'s National Provider Identifier (NPI) is 1952724437, issued on Feb 4, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Abby Chih-Yu Hsu, O.D. located?
The NPPES record lists a practice address at 721 Mission Villa Ter, Fremont, CA, 94539. Phone: (510) 676-9190. Providers update this record themselves, so call before visiting.
How can I verify Abby Chih-Yu Hsu, O.D.'s license?
NPPES lists California license number 14852, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.