NPPES file of Aug 9, 2026

Margaret Anne Macgibeny, MD, PHD

Dermatology Physician · New Haven, CT

Margaret Anne Macgibeny, MD, PHD is a dermatology physician with a practice address in New Haven, Connecticut, and NPI 1124604996, issued on Mar 22, 2021. Check the license (Connecticut 80447, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124604996
Name
Margaret Anne Macgibeny
Credential
MD, PHD
Primary taxonomy
Dermatology Physician 207N00000X
License number
80447 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
Mar 22, 2021
Record last updated
Jul 24, 2025
Medicare enrollment
Enrolled (PECOS I20250924003932); accepts Medicare assignment
Medical or professional school
Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 2021
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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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 Margaret Anne Macgibeny in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 80447
    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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Bills Medicare through 2 group practices

  1. Cornell Scott Hill Health CorporationNew Haven, CT
  2. Yale UniversityNew Haven, CT

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

Margaret Anne Macgibeny among 253 dermatology physician records in Connecticut

Margaret Anne Macgibeny, MD, PHD is one of 253 dermatology physician records with a practice address in Connecticut. 84% 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 93% of them.

  • NPI issued2021 · 93% of these records are older, 3% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2021 · median 2004 among the 180 with a school on file
  • Record last updated2025 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Connecticut

There are 253 dermatology physician records in Connecticut.

The 8 dermatology physician records with the nearest ZIP codes

  1. Jean Bolognia, MDNew Haven, CT 065101942291331
  2. Irwin Braverman, MDNew Haven, CT 065101669453445
  3. Christopher Bunick, M.D., PH.D.New Haven, CT 065101457527442
  4. Sean Christensen, MDNew Haven, CT 065101962685073
  5. Shawn Cowper, MDNew Haven, CT 065101396736773
  6. Richard Edelson, MDNew Haven, CT 065101639160013
  7. Michael Girardi, MDNew Haven, CT 065101154302842
  8. Peter Heald, MDNew Haven, CT 065101376534784

Common questions

What is Margaret Anne Macgibeny, MD, PHD's NPI number?

Margaret Anne Macgibeny, MD, PHD's National Provider Identifier (NPI) is 1124604996, issued on Mar 22, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Anne Macgibeny, MD, PHD 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 Margaret Anne Macgibeny, MD, PHD's license?

NPPES lists Connecticut license number 80447, 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.

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.