NPPES file of Aug 9, 2026

James G. Diette, D.D.S.

General Practice Dentistry · Darien, CT

James G. Diette, D.D.S. is a general practice dentistry with a practice address in Darien, Connecticut, and NPI 1790866382, issued on Oct 18, 2006. Check the license (Connecticut 5428, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1790866382
Name
James G. Diette
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
5428 CT
Self-reported in NPPES; status is on the state search
Practice location
722 Post RD Ste 301, Darien, CT 06820
Phone
(203) 656-0404
Enumerated
Oct 18, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(203) 662-9245
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 722 Post RD Ste 301

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bobby Ahmadi, DMDDentist1598334724

Verify James G. Diette in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 5428
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Connecticut license search

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69% fewer Medicare Part D claims than the average general practice dentistry in 2024

26 Medicare Part D claims for 14 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.

  1. James Diette26
  2. Specialty average83

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: $19.95

1 payment: gift; the largest payer was Ultradent Products 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.

  1. James Diette$19.95
  2. Specialty average$597.01

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

James G. Diette among 1,731 general practice dentistry records in Connecticut

James G. Diette, D.D.S. 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 69% 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).

5 general practice dentistry records list a practice address in Darien

They are 5 of the 380 NPPES records with a practice address in Darien, and 1,731 general practice dentistry records in Connecticut.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Eliot Essenfeld, DDSDarien, CT 068201881895472
  2. Maryann Lehmann, DDSDarien, CT 068201588669717
  3. Quynhchi Van Lang, DMDDarien, CT 068201275737900
  4. Mark Waldman, DMDDarien, CT 068201346254422
  5. Janette Black, D.D.S.Fairfield, CT 068241861406142
  6. Jon Davis, D.M.D.Fairfield, CT 068241922197359
  7. Katherine Mizukovski Finkel, D.D.SFairfield, CT 068241205842812
  8. William Nash, DMDFairfield, CT 068241114034402

Common questions

What is James G. Diette, D.D.S.'s NPI number?

James G. Diette, D.D.S.'s National Provider Identifier (NPI) is 1790866382, issued on Oct 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James G. Diette, D.D.S. located?

The NPPES record lists a practice address at 722 Post RD Ste 301, Darien, CT, 06820. Phone: (203) 656-0404. Providers update this record themselves, so call before visiting.

How can I verify James G. Diette, D.D.S.'s license?

NPPES lists Connecticut license number 5428, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does James G. Diette, D.D.S. prescribe under Medicare Part D?

In 2024, James G. Diette, D.D.S. had 26 Medicare Part D claims for 14 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.