NPPES file of Aug 9, 2026

Kristen Southwick, RN

Certified Registered Nurse Anesthetist · New Haven, CT

Kristen Southwick, RN is a certified registered nurse anesthetist with a practice address in New Haven, Connecticut, and NPI 1508436684, issued on Jun 30, 2021. Check the license (Connecticut 139419, 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1508436684
Name
Kristen Southwick
Credential
RN
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License numbers
139419 CT
313257 NC
Self-reported in NPPES; status is on the state search
Practice location
333 Cedar St. Tmp 3, New Haven, CT 06510
Phone
(203) 502-4634
Enumerated
Jun 30, 2021
Record last updated
Sep 26, 2022
Medicare enrollment
Enrolled (PECOS I20221208000109); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Kristen Southwick 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 139419
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score75.8
  2. Costout of 100 · 30%51.4
  3. Promoting interoperabilityout of 100 · 25%74.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Yale UniversityNew Haven, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kristen Southwick among 880 certified registered nurse anesthetist records in Connecticut

Kristen Southwick, RN is one of 880 certified registered nurse anesthetist records with a practice address in Connecticut. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 81% of them.

  • NPI issued2021 · 81% of these records are older, 14% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2022 · median 2014 among the 653 with a school on file
  • Record last updated2022 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

162 certified registered nurse anesthetist records list a practice address in New Haven

They are 162 of the 9,793 NPPES records with a practice address in New Haven, and 880 certified registered nurse anesthetist records in Connecticut.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Michele Argo, CRNANew Haven, CT 065101942270020
  2. Deborah BurnsNew Haven, CT 065101164510483
  3. Gregory Cain, CRNANew Haven, CT 065101013158716
  4. Marianne Cosgrove, CRNANew Haven, CT 065101912960451
  5. Keith Denning, CRNANew Haven, CT 065101760467815
  6. Leonda Fermo, CRNANew Haven, CT 065101780656041
  7. James Hilliard, CRNANew Haven, CT 065101235244468
  8. Philip Johnson, CRNANew Haven, CT 065101215979463

Common questions

What is Kristen Southwick, RN's NPI number?

Kristen Southwick, RN's National Provider Identifier (NPI) is 1508436684, issued on Jun 30, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Kristen Southwick, RN located?

The NPPES record lists a practice address at 333 Cedar St. Tmp 3, New Haven, CT, 06510. Phone: (203) 502-4634. Providers update this record themselves, so call before visiting.

How can I verify Kristen Southwick, RN's license?

NPPES lists Connecticut license number 139419, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

What is Kristen Southwick, RN's MIPS final score?

The 2023 MIPS final score is 73.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.