Karen Li Cheng, O.D.
Optometrist · Redwood City, CA
Karen Li Cheng, O.D. is an optometrist with a practice address in Redwood City, California, and NPI 1407182090, issued on Nov 2, 2009. Check the license (California 13856TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Li Cheng
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 13856TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 2300 Middlefield RD, Redwood City, CA 94063
- Phone
- (650) 599-9898
- Enumerated
- Nov 2, 2009
- Record last updated
- Apr 9, 2014 (not updated in 12 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 2300 Middlefield RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karundra Ben Abraham, PHARM DPharmacist1457886616
- Thuy Huynh, PHARM. D.Pharmacist1477839942
- Vinson Lee, PHARMDPharmacist1851657860
- Chi Luu, O.D.Optometrist1629131362
- Parnian MassoomiPharmacist1154980845
- Protima Rao, R.PHPharmacist1053697102
Verify Karen Li Cheng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 13856TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average optometrist in 2024
26 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Latanoprost15 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.
Optometrist providers in California
There are 8,308 optometrist records in California.
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 Karen Li Cheng, O.D.'s NPI number?
Karen Li Cheng, O.D.'s National Provider Identifier (NPI) is 1407182090, issued on Nov 2, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Karen Li Cheng, O.D. located?
The NPPES record lists a practice address at 2300 Middlefield RD, Redwood City, CA, 94063. Phone: (650) 599-9898. Providers update this record themselves, so call before visiting.
How can I verify Karen Li Cheng, O.D.'s license?
NPPES lists California license number 13856TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Li Cheng, O.D. prescribe under Medicare Part D?
In 2024, Karen Li Cheng, O.D. had 26 Medicare Part D claims; 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.