NPPES file of Aug 9, 2026

Kathryn E. Stack, MD

Anesthesiology Physician · Old Lyme, CT

Kathryn E. Stack, MD is an anesthesiology physician with a practice address in Old Lyme, Connecticut, and NPI 1326081969, issued on Jun 13, 2006. Check the license (Connecticut 57186, as entered in NPPES) on the Connecticut Medical Examining Board; 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
1326081969
Name
Kathryn E. Stack
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
57186 CT
Self-reported in NPPES; status is on the state search
Practice location
15 Wood Crest Dr, Old Lyme, CT 06371
Phone
(404) 932-9109
Enumerated
Jun 13, 2006
Record last updated
Dec 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190912000966); accepts Medicare assignment
Medical or professional school
New York Medical College, 1992
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 Kathryn E. Stack in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 57186
    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
Open the Connecticut license search

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The MIPS final score for 2023 (Medicare payment program): 93.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score81.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%78.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. Northeast Medical Group IncWesterly, RI

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

Kathryn E. Stack among 797 anesthesiology physician records in Connecticut

Kathryn E. Stack, MD is one of 797 anesthesiology physician records with a practice address in Connecticut. 76% 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 17% of them.

  • NPI issued2006 · 17% of these records are older, 54% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1992 · median 2006 among the 550 with a school on file
  • Record last updated2021 · 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 207L00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in Connecticut

There are 797 anesthesiology physician records in Connecticut.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Jeremy Burke, M.D.Norwich, CT 063601073662482
  2. Cynthia Campbell, M.D.Norwich, CT 063601902892938
  3. Adam Goldstein, M.D.Norwich, CT 063601093715427
  4. Alexander Hall, M.D.Norwich, CT 063601912460478
  5. Daniel Hseuh, MDNorwich, CT 063601396953055
  6. Yong Jo, M.D.Norwich, CT 063601962482422
  7. Joseph Keenan, MDNorwich, CT 063601730708041
  8. Robert Ringering, D.O.Norwich, CT 063601821084286

Common questions

What is Kathryn E. Stack, MD's NPI number?

Kathryn E. Stack, MD's National Provider Identifier (NPI) is 1326081969, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kathryn E. Stack, MD located?

The NPPES record lists a practice address at 15 Wood Crest Dr, Old Lyme, CT, 06371. Phone: (404) 932-9109. Providers update this record themselves, so call before visiting.

How can I verify Kathryn E. Stack, MD's license?

NPPES lists Connecticut license number 57186, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Kathryn E. Stack, MD's MIPS final score?

The 2023 MIPS final score is 93.3 of 100. 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.