Registry data as of Aug 27, 2026

Registered Nurse First Assistant in Connecticut

8 NPPES records list registered nurse first assistant with a Connecticut practice address, 0.2 per 100,000 residents, 44 of 50 per resident. Bristol and Norwich have the most; each record links to the provider's NPI and the Connecticut license search.

CMS NPPES registry, loaded Aug 27, 2026; 2023 Census estimates · NUCC 163WR0006X · method

Bristol has the most, 2

Source: CMS NPPES, primary taxonomy 163WR0006X by practice city, loaded Aug 27, 2026.

Registered Nurse First Assistant records in Connecticut

  1. Melissa Bergeron, RN., CRNFANorwich, CT 063601437204724
  2. Cathy Chasse, RNFABristol, CT 060101801978242
  3. Donna Civardi, RNFA, APRN, FNP-BCNorwich, CT 063601831230119
  4. Patricia Lathrop, RNFAOld Lyme, CT 063711336287861
  5. Debra Olson, RNFAHarwinton, CT 067911538388533
  6. Karen Ryan, CRNFABristol, CT 060111932312667
  7. Heidi Underhill, RNFA, CNORWest Hartford, CT 061101760635924
  8. Tomas Veiga, CRNFABranford, CT 064051467725580

Connecticut ranks 44 of 50 per resident

  1. South Carolina0.3
  2. Michigan0.2
  3. Utah0.2
  4. Connecticut0.2
  5. South Dakota0.2
  6. Massachusetts0.2
  7. 50 states and D.C.0.8

Source: CMS NPPES, primary taxonomy 163WR0006X by practice state, loaded Aug 27, 2026; records per 100,000 residents, 2023 Census estimates.

What the count covers

The CMS National Plan and Provider Enumeration System currently lists 8 Registered Nurse First Assistant providers with a primary practice address in Connecticut, all registered under the Registered Nurse NUCC taxonomy branch. Each clinician on this roster selected Registered Nurse First Assistant as their primary taxonomy at NPI enrollment, a self-reported classification that is updated whenever the provider files a correction with CMS. The count excludes organizations (group practices, hospitals, clinics operate under separate NPIs) and excludes providers who chose a different primary specialty even if they practice Registered Nurse First Assistant part-time. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

At 8 enrolled providers, Registered Nurse First Assistant in Connecticut is a narrow-coverage market, that matters for search-radius decisions, because patients in Connecticut outside the largest metros often need to broaden to adjacent cities to find a local Registered Nurse First Assistant clinician. The directory below is paginated 50 providers at a time (1 page total) and is sorted alphabetically by last name, so scanning for a specific practice usually goes faster than scrolling; on the provider detail page you'll find the full NPPES record including address, phone, credentials, and any published Medicare Part D prescribing activity for 2024.

Before contacting anyone on this list, verify the practice is still at the address shown, NPPES refreshes monthly, but providers who have relocated, retired, or changed employers may not have filed an NPI update yet. Important: PlainDoctor is a directory of publicly available CMS government data covering Registered Nurse First Assistant providers in Connecticut, not a quality ranking, a board-certification verifier, or medical advice. Always confirm credentials through the NPPES NPI Registry, the Connecticut medical board, and, where relevant, the ABMS, AOA, or the specialty's primary certifying body before making any clinical decision. Nothing on this page substitutes for a conversation with a licensed clinician.

The largest states

  1. California321
  2. Texas319
  3. Florida224
  4. New Jersey217
  5. New York135

Source: CMS National Plan and Provider Enumeration System (NPPES), file loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.