NPPES file of Aug 9, 2026

Eileen O'Brien, RDH

Dental Hygienist · West Haven, CT

Eileen O'Brien, RDH is a dental hygienist with a practice address in West Haven, Connecticut, and NPI 1447581772, issued on Jan 27, 2010. Check the license (Connecticut 006849, as entered in NPPES) with the Connecticut board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1447581772
Name
Eileen O'Brien
Credential
RDH
Primary taxonomy
Dental Hygienist 124Q00000X
License number
006849 CT
Self-reported in NPPES; status is on the state search
Practice location
419 Boston Post RD, West Haven, CT 06516
Phone
(203) 931-6025
Enumerated
Jan 27, 2010
Record last updated
Jan 27, 2010 (not updated in 16 years: call before relying on the address or phone)
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.
Download card Updates feed

Also registered at 419 Boston Post RD

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

  1. Adriana Fields, RDHDental Hygienist1942673579
  2. Gwen Grosso, RDHDental Hygienist1497935241
  3. Lynn HelferDental Hygienist1225218878
  4. Mary Ann Hultgren, RDHDental Hygienist1093904161
  5. Linda Mercer, RDHDental Hygienist1588843676
  6. Donna Orefice, RDH, MSDental Hygienist1063691160

Verify Eileen O'Brien 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 006849
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Eileen O'Brien among 421 dental hygienist records in Connecticut

Eileen O'Brien, RDH is one of 421 dental hygienist records with a practice address in Connecticut. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2010, is newer than 41% of them.

  • NPI issued2010 · 41% of these records are older, 56% newer
  • In a Medicare fileNo · 2% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2010 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 124Q00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 dental hygienist records list a practice address in West Haven

They are 20 of the 1,356 NPPES records with a practice address in West Haven, and 421 dental hygienist records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 dental hygienist records with the nearest ZIP codes

  1. Gwen Grosso, RDHWest Haven, CT 065161497935241
  2. Lynn HelferWest Haven, CT 065161225218878
  3. Mary Ann Hultgren, RDHWest Haven, CT 065161093904161
  4. Mark Kacerik, RDHWest Haven, CT 065161790967784
  5. Kathleen Martin Lane, RDHWest Haven, CT 065161235452277
  6. Stacy Maslar, RDHWest Haven, CT 065161952580169
  7. Linda Mercer, RDHWest Haven, CT 065161588843676
  8. Donna Orefice, RDH, MSWest Haven, CT 065161063691160

Common questions

What is Eileen O'Brien, RDH's NPI number?

Eileen O'Brien, RDH's National Provider Identifier (NPI) is 1447581772, issued on Jan 27, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Eileen O'Brien, RDH located?

The NPPES record lists a practice address at 419 Boston Post RD, West Haven, CT, 06516. Phone: (203) 931-6025. Providers update this record themselves, so call before visiting.

How can I verify Eileen O'Brien, RDH's license?

NPPES lists Connecticut license number 006849, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity 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. 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.