Ken Chen
Optometrist · Alameda, CA
Ken Chen is an optometrist with a practice address in Alameda, California, and NPI 1346640976, issued on Sep 2, 2014. Check the license (California 15357TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ken Chen
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 15357TLG CA
5046 MA
Self-reported in NPPES; status is on the state search - Practice location
- 2202 S Shore Ctr Ste F, Alameda, CA 94501
- Phone
- (510) 521-9801
- Enumerated
- Sep 2, 2014
- Record last updated
- Apr 25, 2024
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Ken Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 15357TLGCheck 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: $239.78
6 payments; by number, the most common kind was food and beverage; the largest payer was CooperVision 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.
Ken Chen among 8,308 optometrist records in California
Ken Chen 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 2014, is newer than 68% of them.
- NPI issued2014 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2024 · 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).
25 optometrist records list a practice address in Alameda
They are 25 of the 2,492 NPPES records with a practice address in Alameda, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Alameda → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Milan An, O.D.Alameda, CA 945011134276215
- Daniel Chin, DOCTOR OF OPTOMETRYAlameda, CA 945011003969254
- David Jew, O.D.Alameda, CA 945011760539860
- Eugenia Kao, O.D.Alameda, CA 945011265589378
- Eileen Kim, O.D.Alameda, CA 945011427100924
- Nellie LeeAlameda, CA 945011649319245
- Alexander Lukens, O.D.Alameda, CA 945011275533879
- Richard Marcus, O.D,Alameda, CA 945011396804050
Common questions
What is Ken Chen's NPI number?
Ken Chen's National Provider Identifier (NPI) is 1346640976, issued on Sep 2, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Ken Chen located?
The NPPES record lists a practice address at 2202 S Shore Ctr Ste F, Alameda, CA, 94501. Phone: (510) 521-9801. Providers update this record themselves, so call before visiting.
How can I verify Ken Chen's license?
NPPES lists California license number 15357TLG, 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.