Dionysios John Tzoumas, DDS
Dentist · Southport, CT
Dionysios John Tzoumas, DDS is a dentist with a practice address in Southport, Connecticut, and NPI 1831861004, issued on Oct 5, 2021. Check the license with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Dionysios John Tzoumas
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 061510 NY
Self-reported in NPPES; status is on the state search - Practice location
- 245 Range RD, Southport, CT 06890
- Phone
- (475) 216-9593
- Enumerated
- Oct 5, 2021
- Record last updated
- Oct 5, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 122300000X NY
- Entity
- Type 1 · individual
8 nearest dentist records → All 862 in Connecticut → Look up another NPI →
Verify Dionysios John Tzoumas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average dentist in 2024
91 Medicare Part D claims for 65 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
- Amoxicillin64 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.
Dionysios John Tzoumas among 862 dentist records in Connecticut
Dionysios John Tzoumas, DDS is one of 862 dentist records with a practice address in Connecticut. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 86% of them.
- NPI issued2021 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2021 · 75% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 dentist records list a practice address in Southport
They are 7 of the 127 NPPES records with a practice address in Southport, and 862 dentist records in Connecticut.
All 862 in Connecticut → Every provider in Southport → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Pamela Gibson, D.M.D.Southport, CT 068901497098206
- Jack Newton, DMDSouthport, CT 068901073001475
- Joseph Piliero, DDSSouthport, CT 068901164505673
- Beth Posner, DMDSouthport, CT 068901326319831
- Dennis Ragoza, D.M.D.Southport, CT 068901740641323
- Michael Reynolds, D.D.S.Southport, CT 068901487981395
- Rebecca D'Andrea, DDSWilton, CT 068971285093971
- A Strait, DDSWilton, CT 068971891905048
Common questions
What is Dionysios John Tzoumas, DDS's NPI number?
Dionysios John Tzoumas, DDS's National Provider Identifier (NPI) is 1831861004, issued on Oct 5, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Dionysios John Tzoumas, DDS located?
The NPPES record lists a practice address at 245 Range RD, Southport, CT, 06890. Phone: (475) 216-9593. Providers update this record themselves, so call before visiting.
How can I verify Dionysios John Tzoumas, DDS's license?
Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Dionysios John Tzoumas, DDS prescribe under Medicare Part D?
In 2024, Dionysios John Tzoumas, DDS had 91 Medicare Part D claims for 65 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.