Wynne S. Ko, DDS
Dentist · Oakland, CA
Wynne S. Ko, DDS is a dentist with a practice address in Oakland, California, and NPI 1801959358, issued on Dec 18, 2006. Check the license (California 48815, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Wynne S. Ko
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 48815 CA
Self-reported in NPPES; status is on the state search - Practice location
- 818 Webster St, Oakland, CA 94607
- Phone
- (510) 986-6830
- Enumerated
- Dec 18, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (510) 986-6890
- Entity
- Type 1 · individual
8 nearest dentist records → All 14,729 in California → Look up another NPI →
Also registered at 818 Webster St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christine Araneta, PAPhysician Assistant1780747238
- Gilbert Nolly ArcillaBehavior Technician1164046082
- Ivy CaiRegistered Nurse1982458915
- Yan CaiLicensed Vocational Nurse1477195717
- Clayton Chan, MDInternal Medicine Physician1972682037
- Florence ChanRegistered Nurse1649827593
Verify Wynne S. Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 48815Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average dentist in 2024
35 Medicare Part D claims for 26 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Chlorhexidine Gluconate17 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.
Wynne S. Ko among 14,729 dentist records in California
Wynne S. Ko, DDS is one of 14,729 dentist records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 82% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dentist providers in California
There are 14,729 dentist records in California.
All 14,729 in California → Every provider in Oakland → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Siu Kelvin Auyoung, DDSOakland, CA 946071720415698
- Guei Mei Chiang, DDSOakland, CA 946071407981798
- Stephen Ching, DDSOakland, CA 946071164434072
- Harold Fung, DMDOakland, CA 946071780765198
- Roger Fung, DDSOakland, CA 946071144421637
- Robert Hay, D.D.S.Oakland, CA 946071548251614
- Zhi Jiang, DDSOakland, CA 946071942421060
- Elisa Kuo, D.D.S.Oakland, CA 946071861608358
Common questions
What is Wynne S. Ko, DDS's NPI number?
Wynne S. Ko, DDS's National Provider Identifier (NPI) is 1801959358, issued on Dec 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Wynne S. Ko, DDS located?
The NPPES record lists a practice address at 818 Webster St, Oakland, CA, 94607. Phone: (510) 986-6830. Providers update this record themselves, so call before visiting.
How can I verify Wynne S. Ko, DDS's license?
NPPES lists California license number 48815, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Wynne S. Ko, DDS prescribe under Medicare Part D?
In 2024, Wynne S. Ko, DDS had 35 Medicare Part D claims for 26 beneficiaries; the average among dentist prescribers was 86. 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.