Timothy Chenghsien Wu, D.M.D.
Periodontics · Mountain View, CA
Timothy Chenghsien Wu, D.M.D. is a periodontics with a practice address in Mountain View, California, and NPI 1932226719, issued on Mar 25, 2007. Check the license (California 45057, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Timothy Chenghsien Wu
- Credential
- D.M.D.
- Primary taxonomy
- Periodontics 1223P0300X
- License number
- 45057 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 W EL Camino Real, Mountain View, CA 94040
- Phone
- (650) 968-3888
- Enumerated
- Mar 25, 2007
- Record last updated
- Jun 18, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (650) 641-8980
- Entity
- Type 1 · individual
8 nearest periodontics records → All 929 in California → Look up another NPI →
Also registered at 100 W EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nita Chainani-Wu, DMD, PHDDentist1679692198
- William Hall, DDSDentist1578576716
- Kristin Phillips-Matson, L.P.C.C.Mental Health Counselor1083072722
- Harise Stein, MDObstetrics & Gynecology Physician1740315944
- Emily Tovar, DDSDentist1780246330
- Emily Zhang, DDSGeneral Practice Dentistry1336971837
Verify Timothy Chenghsien Wu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 45057Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average periodontics in 2024
41 Medicare Part D claims for 17 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D.
Most prescribed
- Chlorhexidine Gluconate22 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.
Timothy Chenghsien Wu among 929 periodontics records in California
Timothy Chenghsien Wu, D.M.D. is one of 929 periodontics records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 29% of them.
- NPI issued2007 · 29% of these records are older, 40% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2010 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Periodontics providers in California
There are 929 periodontics records in California.
All 929 in California → Every provider in Mountain View → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- Shin Young Ahn, DMDMountain View, CA 940401215380043
- Eric Chu, D.D.S.Mountain View, CA 940401184846891
- Daniel Nelson, D.D.S.Mountain View, CA 940401619120037
- Joe Provines, D.M.D.Mountain View, CA 940401124118914
- Frank Riccoboni, D.D.S., M.S.Mountain View, CA 940401053453605
- Casey Herrera, D.D.S.Atherton, CA 940271255547345
- Goncalo Bartolo Carames, DDSMenlo Park, CA 940251093511784
- Shantia Kazemi Esfeh, DDS, MSMenlo Park, CA 940251730661885
Common questions
What is Timothy Chenghsien Wu, D.M.D.'s NPI number?
Timothy Chenghsien Wu, D.M.D.'s National Provider Identifier (NPI) is 1932226719, issued on Mar 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Chenghsien Wu, D.M.D. located?
The NPPES record lists a practice address at 100 W EL Camino Real, Mountain View, CA, 94040. Phone: (650) 968-3888. Providers update this record themselves, so call before visiting.
How can I verify Timothy Chenghsien Wu, D.M.D.'s license?
NPPES lists California license number 45057, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Timothy Chenghsien Wu, D.M.D. prescribe under Medicare Part D?
In 2024, Timothy Chenghsien Wu, D.M.D. had 41 Medicare Part D claims for 17 beneficiaries; the average among periodontics 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.