Steven Marc Regenstein, DDS
General Practice Dentistry · Westport, CT
Steven Marc Regenstein, DDS is a general practice dentistry with a practice address in Westport, Connecticut, and NPI 1568663011, issued on May 31, 2007. Check the license (Connecticut 008313, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Steven Marc Regenstein
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 008313 CT
Self-reported in NPPES; status is on the state search - Practice location
- 251 Main Street, Westport, CT 06880
- Phone
- (203) 227-3421
- Enumerated
- May 31, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (203) 226-9817
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 1,731 in Connecticut → Look up another NPI →
Also registered at 251 Main Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Seckler, LCSWSocial Worker1417136904
Verify Steven Marc Regenstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 008313Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average general practice dentistry in 2024
61 Medicare Part D claims for 39 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin39 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: $479.37
13 payments; by number, the most common kind was food and beverage; the largest payer was Align Technology, Inc. The 41,669 providers of this specialty with any payment received $597.01 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.
Steven Marc Regenstein among 1,731 general practice dentistry records in Connecticut
Steven Marc Regenstein, DDS is one of 1,731 general practice dentistry records with a practice address in Connecticut. 63% 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 31% of them.
- NPI issued2007 · 31% of these records are older, 39% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 80% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 general practice dentistry records list a practice address in Westport
They are 12 of the 886 NPPES records with a practice address in Westport, and 1,731 general practice dentistry records in Connecticut.
All 1,731 in Connecticut → Every provider in Westport → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Sandra Bogdon, D.D.S.Westport, CT 068801336361849
- Brian Duchan, DMDWestport, CT 068801821142134
- Richard Epstein, DMD,FAGDWestport, CT 068801508875121
- Adam Freeman, DDSWestport, CT 068801134273451
- Lindsay GadzikWestport, CT 068801376097741
- Marilyn Geni, DMDWestport, CT 068801508912445
- Fulton Li, D. M. D.Westport, CT 068801811095185
- Charles Lobel, DDSWestport, CT 068801962612424
Common questions
What is Steven Marc Regenstein, DDS's NPI number?
Steven Marc Regenstein, DDS's National Provider Identifier (NPI) is 1568663011, issued on May 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Steven Marc Regenstein, DDS located?
The NPPES record lists a practice address at 251 Main Street, Westport, CT, 06880. Phone: (203) 227-3421. Providers update this record themselves, so call before visiting.
How can I verify Steven Marc Regenstein, DDS's license?
NPPES lists Connecticut license number 008313, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Steven Marc Regenstein, DDS prescribe under Medicare Part D?
In 2024, Steven Marc Regenstein, DDS had 61 Medicare Part D claims for 39 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.