Connie Liang, O.D.
Optometrist · Fremont, CA
Connie Liang, O.D. is an optometrist with a practice address in Fremont, California, and NPI 1609171990, issued on Jan 18, 2011. Check the license (California 12325T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Connie Liang
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 12325T CA
Self-reported in NPPES; status is on the state search - Practice location
- 38069 Martha Ave, Fremont, CA 94536
- Phone
- (510) 791-5272
- Enumerated
- Jan 18, 2011
- Record last updated
- Mar 18, 2022
- Medicare enrollment
- Enrolled (PECOS I20040524000612); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 38069 Martha Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Raymond Pedersen, ODOptometrist1457343717
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Verify Connie Liang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 12325TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average optometrist in 2024
44 Medicare Part D claims for 37 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
Most prescribed
- Erythromycin27 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.
Bills Medicare through one group practice
- Permanente Medical Group IncOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Connie Liang among 8,308 optometrist records in California
Connie Liang, 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. Its NPI, issued in 2011, is newer than 61% of them.
- NPI issued2011 · 61% of these records are older, 36% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2003 · median 2008 among the 3,573 with a school on file
- Record last updated2022 · 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.
All 8,308 in California → Every provider in Fremont → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Hoang Anh Bui, ODFremont, CA 945361053496836
- Peggy Chen, O.DFremont, CA 945361598780561
- Alexandra Helling, ODFremont, CA 945361821752155
- Amal Mansoor, ODFremont, CA 945361497538607
- Raymond Pedersen, ODFremont, CA 945361457343717
- Don Pegueros, ODFremont, CA 945361710014659
- Shivani Sharma, O.D.Fremont, CA 945361992200323
- Kay Smarzinski, O.D.Fremont, CA 945361609810290
Common questions
What is Connie Liang, O.D.'s NPI number?
Connie Liang, O.D.'s National Provider Identifier (NPI) is 1609171990, issued on Jan 18, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Connie Liang, O.D. located?
The NPPES record lists a practice address at 38069 Martha Ave, Fremont, CA, 94536. Phone: (510) 791-5272. Providers update this record themselves, so call before visiting.
How can I verify Connie Liang, O.D.'s license?
NPPES lists California license number 12325T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Connie Liang, O.D. prescribe under Medicare Part D?
In 2024, Connie Liang, O.D. had 44 Medicare Part D claims for 37 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions 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. 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.