Thomas Mercer, DDS
General Practice Dentistry · Rancho Cucamonga, CA
Thomas Mercer, DDS is a general practice dentistry with a practice address in Rancho Cucamonga, California, and NPI 1659589539, issued on May 21, 2007. Check the license (California 031954, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Thomas Mercer
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 031954 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9333 Baseline Road, Rancho Cucamonga, CA 91730
- Phone
- (909) 980-5558
- Enumerated
- May 21, 2007
- Entity
- Type 1 · individual
Also registered at 9333 Baseline Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shirley Mercer, DDSGeneral Practice Dentistry1306051503
Verify Thomas Mercer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 031954Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
77 general practice dentistry records list a practice address in Rancho Cucamonga
They are 77 of the 4,579 NPPES records with a practice address in Rancho Cucamonga, and 17,852 general practice dentistry records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 77 in Rancho Cucamonga → All 17,852 in California → Every provider in Rancho Cucamonga →
Other general practice dentistry records in California
- Ronald Aanerud, DDSSan Diego, CA1871752931
- Steven Aaronson, D.D.S.Santa Monica, CA1265455851
- Shahrzad Aarup, DDSPomona, CA1265784367
- Al Abad, DDSSan Jose, CA1104992148
- Erwin Abad, D.D.S.Canoga Park, CA1861590093
- Francine Abad, DDSSan Francisco, CA1942700810
- Maria Abad, D.D.S.Norwalk, CA1215006754
- Mark Ryan Abad, DDSDaly City, CA1770357394
- Sanaz Abadi, D.D.S.Los Angeles, CA1699934026
- Ernesto Abadilla, DDSPalm Desert, CA1508063801
Common questions
What is Thomas Mercer, DDS's NPI number?
Thomas Mercer, DDS's National Provider Identifier (NPI) is 1659589539, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Mercer, DDS located?
The NPPES record lists a practice address at 9333 Baseline Road, Rancho Cucamonga, CA, 91730. Phone: (909) 980-5558. Providers update this record themselves, so call before visiting.
How can I verify Thomas Mercer, DDS's license?
NPPES lists California license number 031954, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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) 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 27, 2026.