Eugene T. Giannini, D.D.S.
General Practice Dentistry · Washington, DC
Eugene T. Giannini, D.D.S. is a general practice dentistry with a practice address in Washington, District of Columbia, and NPI 1548266364, issued on Jun 27, 2005. Check the license (District of Columbia DEN5141, as entered in NPPES) with the District of Columbia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Eugene T. Giannini
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- DEN5141 DC
Self-reported in NPPES; status is on the state search - Practice location
- 4801 Wisconsin Ave NW, Washington, DC 20016
- Phone
- (202) 244-4111
- Enumerated
- Jun 27, 2005
- Record last updated
- Apr 15, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (202) 244-6389
- Entity
- Type 1 · individual
Also registered at 4801 Wisconsin Ave NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nancy Barskey, MSW LCSWClinical Social Worker1134252356
- Brian Gray, DDSGeneral Practice Dentistry1134253024
- Cathleen Gray, PHD,LICSWClinical Social Worker1982805016
- Catherine Hartley, L.I.C.S.W.Clinical Social Worker1588786891
- Nadina Lambert, DDSGeneral Practice Dentistry1033243852
- Ali Safayan, M.D.Internal Medicine Physician1962595900
Verify Eugene T. Giannini in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich District of Columbia board licenses this profession
Search for license DEN5141Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average general practice dentistry in 2024
53 Medicare Part D claims for 36 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin18 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.
365 general practice dentistry records list a practice address in Washington
They are 365 of the 45,857 NPPES records with a practice address in Washington, and 377 general practice dentistry records in District of Columbia.
All 365 in Washington → All 377 in District of Columbia → Every provider in Washington →
Other general practice dentistry records in District of Columbia
- Adeola Abisogun, DDSWashington, DC1649684655
- Ariel Abramson, D.D.SWashington, DC1952407819
- Carlos Abreu, DMDWashington, DC1699796029
- Mahvassh Abreu, D.M.DWashington, DC1366467011
- Isa Abu El Hawa, D.D.SWashington, DC1013686872
- Toni Adderley, DDSWashington, DC1649491499
- Patricia Adelsberger, D.D.S.Washington, DC1902902885
- Donna Afshar, D.M.D.Washington, DC1750681094
- Yasmeen AhmadWashington, DC1174356992
- Minoo Akhavan Malayeri, DDSWashington, DC1144501677
Common questions
What is Eugene T. Giannini, D.D.S.'s NPI number?
Eugene T. Giannini, D.D.S.'s National Provider Identifier (NPI) is 1548266364, issued on Jun 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Eugene T. Giannini, D.D.S. located?
The NPPES record lists a practice address at 4801 Wisconsin Ave NW, Washington, DC, 20016. Phone: (202) 244-4111. Providers update this record themselves, so call before visiting.
How can I verify Eugene T. Giannini, D.D.S.'s license?
NPPES lists District of Columbia license number DEN5141, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.
How much does Eugene T. Giannini, D.D.S. prescribe under Medicare Part D?
In 2024, Eugene T. Giannini, D.D.S. had 53 Medicare Part D claims for 36 beneficiaries; the average among general practice dentistry prescribers was 83. 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.