Ralph Thomas Mazzuca, DDS
Dentist · Washington, DC
Ralph Thomas Mazzuca, DDS is a dentist with a practice address in Washington, District of Columbia, and NPI 1306993779, issued on Jan 5, 2007. Check the license (District of Columbia DEN2416, as entered in NPPES) with the District of Columbia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ralph Thomas Mazzuca
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- DEN2416 DC
Self-reported in NPPES; status is on the state search - Practice location
- 5100 Wisconsin Ave NW, Washington, DC 20016
- Phone
- (202) 537-1088
- Enumerated
- Jan 5, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (202) 537-0994
- Entity
- Type 1 · individual
8 nearest dentist records → All 355 in District of Columbia → Look up another NPI →
Also registered at 5100 Wisconsin Ave NW
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Verify Ralph Thomas Mazzuca 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 DEN2416Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average dentist in 2024
19 Medicare Part D claims, 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.
Ralph Thomas Mazzuca among 355 dentist records in District of Columbia
Ralph Thomas Mazzuca, DDS is one of 355 dentist records with a practice address in District of Columbia. 54% 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 21% of them.
- NPI issued2007 · 21% of these records are older, 64% newer
- In a Medicare fileYes · 54% 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 District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
346 dentist records list a practice address in Washington
They are 346 of the 45,857 NPPES records with a practice address in Washington, and 355 dentist records in District of Columbia.
All 355 in District of Columbia → Every provider in Washington → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Teny AbrahamianWashington, DC 200161891876389
- Steven Berk, D.D.S.Washington, DC 200161316154891
- Sharon Brown, D.D.S.Washington, DC 200161902065527
- Joseph Catanzano, D.D.S.Washington, DC 200161386857654
- Hassan Chehayeb, D.D.S.Washington, DC 200161003022831
- Claudia Cotca, DDS,MPHWashington, DC 200161295914968
- Shawna Hawk, DDSWashington, DC 200161265666291
- George Joncas, DDSWashington, DC 200161003916958
Common questions
What is Ralph Thomas Mazzuca, DDS's NPI number?
Ralph Thomas Mazzuca, DDS's National Provider Identifier (NPI) is 1306993779, issued on Jan 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ralph Thomas Mazzuca, DDS located?
The NPPES record lists a practice address at 5100 Wisconsin Ave NW, Washington, DC, 20016. Phone: (202) 537-1088. Providers update this record themselves, so call before visiting.
How can I verify Ralph Thomas Mazzuca, DDS's license?
NPPES lists District of Columbia license number DEN2416, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.
How much does Ralph Thomas Mazzuca, DDS prescribe under Medicare Part D?
In 2024, Ralph Thomas Mazzuca, DDS had 19 Medicare Part D claims; 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.