Thomas Andrew Mercer, D.M.D.
Dentist · Dover, DE
Thomas Andrew Mercer, D.M.D. is a dentist with a practice address in Dover, Delaware, and NPI 1932273216, issued on Nov 20, 2006. Check the license (Delaware G10001116, as entered in NPPES) with the Delaware board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thomas Andrew Mercer
- Credential
- D.M.D.
- Primary taxonomy
- Dentist 122300000X
- License number
- G10001116 DE
Self-reported in NPPES; status is on the state search - Practice location
- 77 Saulsbury RD, Dover, DE 19904
- Phone
- (302) 678-2942
- Enumerated
- Nov 20, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (302) 678-2294
- Entity
- Type 1 · individual
8 nearest dentist records → All 194 in Delaware → Look up another NPI →
Also registered at 77 Saulsbury RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark Charvat, DDSDentist1467032565
- Elizabeth DennisGeneral Practice Dentistry1508551102
- Sean Mercer, D.D.S.Dentist1609940980
- Thomas Mercer, D.M.D.Dentist1073687257
- Chloe Philip, DDSGeneral Practice Dentistry1932894425
- Bradley Rogge, DDSGeneral Practice Dentistry1134726896
Verify Thomas Andrew Mercer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this profession
Search for license G10001116Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average dentist in 2024
42 Medicare Part D claims for 38 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
- Amoxicillin32 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.
Industry payments in 2024: $25.00
1 payment: education; the largest payer was Hu-Friedy Mfg. Co., LLC. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Thomas Andrew Mercer among 194 dentist records in Delaware
Thomas Andrew Mercer, D.M.D. is one of 194 dentist records with a practice address in Delaware. 65% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 69% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 76% 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 Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dentist providers in Delaware
There are 194 dentist records in Delaware.
All 194 in Delaware → Every provider in Dover → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Anna Aquine Kujaruk, DMDDover, DE 199041770337925
- Sara Bevan, D.M.D.Dover, DE 199041114281490
- Mark Charvat, DDSDover, DE 199041467032565
- John Fontana, D.M.D.Dover, DE 199041336418151
- Thomas Mercer, D.M.D.Dover, DE 199041073687257
- Sean Mercer, D.D.S.Dover, DE 199041609940980
- Christopher Nacrelli, DMDDover, DE 199041609984871
- Thomas Postlethwait, DDSDover, DE 199041871638668
Common questions
What is Thomas Andrew Mercer, D.M.D.'s NPI number?
Thomas Andrew Mercer, D.M.D.'s National Provider Identifier (NPI) is 1932273216, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Andrew Mercer, D.M.D. located?
The NPPES record lists a practice address at 77 Saulsbury RD, Dover, DE, 19904. Phone: (302) 678-2942. Providers update this record themselves, so call before visiting.
How can I verify Thomas Andrew Mercer, D.M.D.'s license?
NPPES lists Delaware license number G10001116, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity only.
How much does Thomas Andrew Mercer, D.M.D. prescribe under Medicare Part D?
In 2024, Thomas Andrew Mercer, D.M.D. had 42 Medicare Part D claims for 38 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.