NPPES file of Aug 9, 2026

William Carl Nash, DMD

General Practice Dentistry · Fairfield, CT

William Carl Nash, DMD is a general practice dentistry with a practice address in Fairfield, Connecticut, and NPI 1114034402, issued on Aug 24, 2006. Check the license (Connecticut 05222, 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
1114034402
Name
William Carl Nash
Credential
DMD
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
05222 CT
Self-reported in NPPES; status is on the state search
Practice location
2157 Mill Plain RD, Fairfield, CT 06824
Phone
(203) 259-5328
Enumerated
Aug 24, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(203) 259-6488
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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Verify William Carl Nash 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 05222
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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86% fewer Medicare Part D claims than the average general practice dentistry in 2024

12 Medicare Part D claims, 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. William Nash12
  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.

William Carl Nash among 1,731 general practice dentistry records in Connecticut

William Carl Nash, DMD 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).

34 general practice dentistry records list a practice address in Fairfield

They are 34 of the 1,446 NPPES records with a practice address in Fairfield, and 1,731 general practice dentistry records in Connecticut.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Janette Black, D.D.S.Fairfield, CT 068241861406142
  2. Jon Davis, D.M.D.Fairfield, CT 068241922197359
  3. Edward Finnigan, DDSFairfield, CT 068241326267840
  4. Patrice Foudy, D.D.S.Fairfield, CT 068241407902828
  5. Janice Hunt, DDSFairfield, CT 068241467671917
  6. Kyeong-Bin Im, DDSFairfield, CT 068241063552974
  7. Katherine Mizukovski Finkel, D.D.SFairfield, CT 068241205842812
  8. Peter O'Shea, DDSFairfield, CT 068241366596298

Common questions

What is William Carl Nash, DMD's NPI number?

William Carl Nash, DMD's National Provider Identifier (NPI) is 1114034402, issued on Aug 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Carl Nash, DMD located?

The NPPES record lists a practice address at 2157 Mill Plain RD, Fairfield, CT, 06824. Phone: (203) 259-5328. Providers update this record themselves, so call before visiting.

How can I verify William Carl Nash, DMD's license?

NPPES lists Connecticut license number 05222, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does William Carl Nash, DMD prescribe under Medicare Part D?

In 2024, William Carl Nash, DMD had 12 Medicare Part D claims; 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.