Catherine Bingchan Xie, MD PHD
Dermatology Physician · New Haven, CT
Catherine Bingchan Xie, MD PHD is a dermatology physician with a practice address in New Haven, Connecticut, and NPI 1780334821, issued on Mar 23, 2022. Check the license (Connecticut 84117, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Catherine Bingchan Xie
- Credential
- MD PHD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 84117 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 23, 2022
- Record last updated
- Apr 15, 2026
- Entity
- Type 1 · individual
Also registered at 20 York St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- 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 Catherine Bingchan Xie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 84117Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average dermatology physician in 2024
60 Medicare Part D claims for 25 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Triamcinolone Acetonide11 claims
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.
Dermatology Physician providers in Connecticut
There are 253 dermatology physician records in Connecticut.
Other dermatology physician records in Connecticut
- Donna Aiudi, M.D.Farmington, CT1902870280
- Michael Albert, M.D.Newington, CT1396842035
- Jeffrey Alter, MDWaterbury, CT1023015542
- Richard Antaya, MDNew Haven, CT1336130715
- Nina Antonov, M.D.Westport, CT1467847582
- Andrew Atton, MDMadison, CT1235124538
- Lihi Atzmony Maoz, MDNew Haven, CT1265299648
- Tanya Ave'Lallemant, MDBristol, CT1861497620
- Laurie Bain, M.D.Vernon, CT1134125834
- Grace Bandow, M.D.Shelton, CT1871709147
Common questions
What is Catherine Bingchan Xie, MD PHD's NPI number?
Catherine Bingchan Xie, MD PHD's National Provider Identifier (NPI) is 1780334821, issued on Mar 23, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Bingchan Xie, 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 Catherine Bingchan Xie, MD PHD's license?
NPPES lists Connecticut license number 84117, 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 Catherine Bingchan Xie, MD PHD prescribe under Medicare Part D?
In 2024, Catherine Bingchan Xie, MD PHD had 60 Medicare Part D claims for 25 beneficiaries; the average among dermatology physician prescribers was 797. 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.