Harren Chu, O.D.
Optometrist · Fremont, CA
Harren Chu, O.D. is an optometrist with a practice address in Fremont, California, and NPI 1124043682, issued on Jul 13, 2006. Check the license (California CA10680T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Harren Chu
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- CA10680T CA
Self-reported in NPPES; status is on the state search - Practice location
- 43625 Mission Blvd, Fremont, CA 94539
- Phone
- (510) 623-8889
- Enumerated
- Jul 13, 2006
- Record last updated
- Feb 8, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (510) 623-1849
- Medicaid ID
- SD0106800 CA
- Entity
- Type 1 · individual
Also registered at 43625 Mission Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ratna Sie, D.D.S.General Practice Dentistry1306929815
Verify Harren Chu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license CA10680TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $111.56
1 payment: food and beverage; the largest payer was Astellas Pharma US Inc. The 34,453 providers of this specialty with any payment received $769.99 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.
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 75 in Fremont → All 8,308 in California → Every provider in Fremont →
Other optometrist records in California
- Douglas Aaseby, O.D.El Dorado Hills, CA1962715961
- Saloumeh Abadi, ODSanta Monica, CA1699258756
- Davoud AbbasiFillmore, CA1902361678
- Christopher Abbott, O.D.Santee, CA1417936220
- Sara Abboud, ODAlbany, CA1649052846
- Ghezal Abdali, O.D.Tustin, CA1770688640
- Nahid Abdali, O.D.San Ramon, CA1700210242
- Yasmeen AbdelfattahIrvine, CA1417786617
- Marina Abdou, ODUpland, CA1356017321
- Angela Abe, OPTModesto, CA1336108885
Common questions
What is Harren Chu, O.D.'s NPI number?
Harren Chu, O.D.'s National Provider Identifier (NPI) is 1124043682, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Harren Chu, O.D. located?
The NPPES record lists a practice address at 43625 Mission Blvd, Fremont, CA, 94539. Phone: (510) 623-8889. Providers update this record themselves, so call before visiting.
How can I verify Harren Chu, O.D.'s license?
NPPES lists California license number CA10680T, 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. 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.