Clark C. Chen, DDS
Dentist · Walnut Creek, CA
Clark C. Chen, DDS is a dentist with a practice address in Walnut Creek, California, and NPI 1932112265, issued on Aug 15, 2006. Check the license (California 30317, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Clark C. Chen
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 30317 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1806 San Miguel Dr, Walnut Creek, CA 94596
- Phone
- (925) 944-5355
- Enumerated
- Aug 15, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (925) 944-5999
- Entity
- Type 1 · individual
8 nearest dentist records → All 14,729 in California → Look up another NPI →
Also registered at 1806 San Miguel Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric Chen, D.D.S.General Practice Dentistry1780999078
Verify Clark C. 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 30317Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average dentist in 2024
22 Medicare Part D claims for 18 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.
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.
Clark C. Chen among 14,729 dentist records in California
Clark C. Chen, 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).
63 dentist records list a practice address in Walnut Creek
They are 63 of the 6,170 NPPES records with a practice address in Walnut Creek, and 14,729 dentist records in California.
All 14,729 in California → Every provider in Walnut Creek → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Curtis Barmby, DDSWalnut Creek, CA 945961487753034
- Virginia Ellis, DDSWalnut Creek, CA 945961225167182
- Gail Frick, DMDWalnut Creek, CA 945961174622724
- Terence Louie, DMD,MSWalnut Creek, CA 945961295860278
- Quintin Louie, D.M.D.Walnut Creek, CA 945961316073117
- Antonio Margiotta, DMDWalnut Creek, CA 945961447278775
- Hala Mealing, DDSWalnut Creek, CA 945961083695431
- Alireza Moheb, DMDWalnut Creek, CA 945961013096502
Common questions
What is Clark C. Chen, DDS's NPI number?
Clark C. Chen, DDS's National Provider Identifier (NPI) is 1932112265, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Clark C. Chen, DDS located?
The NPPES record lists a practice address at 1806 San Miguel Dr, Walnut Creek, CA, 94596. Phone: (925) 944-5355. Providers update this record themselves, so call before visiting.
How can I verify Clark C. Chen, DDS's license?
NPPES lists California license number 30317, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Clark C. Chen, DDS prescribe under Medicare Part D?
In 2024, Clark C. Chen, DDS had 22 Medicare Part D claims for 18 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.