Kay Hyeunkoo Lee, M.D.
Anesthesiology Physician · New Haven, CT
Kay Hyeunkoo Lee, M.D. is an anesthesiology physician with a practice address in New Haven, Connecticut, and NPI 1629344650, issued on Mar 23, 2012. Check the license (Connecticut 55399, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Kay Hyeunkoo Lee
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 55399 CT
276985 NY
Self-reported in NPPES; status is on the state search - Practice location
- 20 York St, New Haven, CT 06510
- Phone
- (203) 785-2802
- Enumerated
- Mar 23, 2012
- Record last updated
- Jul 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20171030001267); may accept Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 2012
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 797 in Connecticut → Look up another NPI →
Also registered at 20 York St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
- Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
- Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
- Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
- Sarah AbdallahPsychiatry Physician1740800952
- Usama Abdelghany, PHARM DOncology Pharmacist1548827843
Verify Kay Hyeunkoo Lee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 55399Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 100 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Montefiore Medical CenterBronx, NY · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Kay Hyeunkoo Lee among 797 anesthesiology physician records in Connecticut
Kay Hyeunkoo Lee, M.D. 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 2012, is newer than 69% of them.
- NPI issued2012 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2012 · median 2006 among the 550 with a school on file
- Record last updated2016 · 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).
215 anesthesiology physician records list a practice address in New Haven
They are 215 of the 9,793 NPPES records with a practice address in New Haven, and 797 anesthesiology physician records in Connecticut.
All 797 in Connecticut → Every provider in New Haven → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- David Freyle, MDNew Haven, CT 065101487635728
- Dorothy Gaal, MDNew Haven, CT 065101861473563
- Thomas Halaszynski, MDNew Haven, CT 065101679554984
- Lars Helgeson, MDNew Haven, CT 065101528049210
- Adriana Herrera, MDNew Haven, CT 065101992786685
- Viji Kurup, MDNew Haven, CT 065101285615971
- Lisa Leffert, MDNew Haven, CT 065101992795579
- Wanda Popescu, MDNew Haven, CT 065101861473548
Common questions
What is Kay Hyeunkoo Lee, M.D.'s NPI number?
Kay Hyeunkoo Lee, M.D.'s National Provider Identifier (NPI) is 1629344650, issued on Mar 23, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Kay Hyeunkoo Lee, M.D. located?
The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 785-2802. Providers update this record themselves, so call before visiting.
How can I verify Kay Hyeunkoo Lee, M.D.'s license?
NPPES lists Connecticut license number 55399, 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 Kay Hyeunkoo Lee, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.