NPPES file of Aug 9, 2026

Katherine McMaster Cooke

Obstetrics & Gynecology Physician · New Haven, CT

Katherine McMaster Cooke is an obstetrics & gynecology physician with a practice address in New Haven, Connecticut, and NPI 1952046013, issued on May 3, 2022. Check the license (Connecticut 84853, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952046013
Name
Katherine McMaster Cooke
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
84853 CT
Self-reported in NPPES; status is on the state search
Practice location
20 York St, New Haven, CT 06510
Phone
(203) 688-4242
Enumerated
May 3, 2022
Record last updated
Aug 3, 2026
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.
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Also registered at 20 York St

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

  1. Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
  2. Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
  3. Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
  4. Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
  5. Sarah AbdallahPsychiatry Physician1740800952
  6. Usama Abdelghany, PHARM DOncology Pharmacist1548827843

Verify Katherine McMaster Cooke in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 84853
    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

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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92% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

13 Medicare Part D claims for 11 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Katherine Cooke13
  2. Specialty average165

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Katherine McMaster Cooke among 707 obstetrics & gynecology physician records in Connecticut

Katherine McMaster Cooke is one of 707 obstetrics & gynecology physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 98% of them.

  • NPI issued2022 · 98% of these records are older, under 1% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2026 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

86 obstetrics & gynecology physician records list a practice address in New Haven

They are 86 of the 9,793 NPPES records with a practice address in New Haven, and 707 obstetrics & gynecology physician records in Connecticut.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Margaret Baumbusch, MD, FACOGNew Haven, CT 065101225336134
  2. Steven Fleischman, M.D.New Haven, CT 065101265495790
  3. Thomas Hanson, M.D., FACOSNew Haven, CT 065101063475184
  4. Tessa Madden, MDNew Haven, CT 065101104861665
  5. Urania Magriples, MDNew Haven, CT 065101740263813
  6. Dennis Mauricio, MDNew Haven, CT 065101063675056
  7. Megan McCarthy, M.D.New Haven, CT 065101215228259
  8. Leanne McCloskey, M.D., M.P.H.New Haven, CT 065101700115029

Common questions

What is Katherine McMaster Cooke's NPI number?

Katherine McMaster Cooke's National Provider Identifier (NPI) is 1952046013, issued on May 3, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Katherine McMaster Cooke located?

The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 688-4242. Providers update this record themselves, so call before visiting.

How can I verify Katherine McMaster Cooke's license?

NPPES lists Connecticut license number 84853, 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.

How much does Katherine McMaster Cooke prescribe under Medicare Part D?

In 2024, Katherine McMaster Cooke had 13 Medicare Part D claims for 11 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions 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. 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.