NPPES file of Aug 9, 2026

Thomas Hin-Chai Leung, M.D. PH.D.

Dermatology Physician · Philadelphia, PA

Thomas Hin-Chai Leung, M.D. PH.D. is a dermatology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1871773036, issued on Nov 5, 2007. Check the license (Pennsylvania MD453364, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1871773036
Name
Thomas Hin-Chai Leung
Credential
M.D. PH.D.
Primary taxonomy
Dermatology Physician 207N00000X
License numbers
MD453364 PA
A105214 CA
Self-reported in NPPES; status is on the state search
Practice location
421 Curie Blvd, Philadelphia, PA 19104
Phone
(215) 898-3240
Enumerated
Nov 5, 2007
Record last updated
Feb 2, 2015 (not updated in 11 years: call before relying on the address or phone)
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 421 Curie Blvd

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

  1. Eunkyung Kauh, MDEndocrinology, Diabetes & Metabolism Physician1306052030
  2. John Seykora, MDDermatopathology Physician1205851888

Verify Thomas Hin-Chai Leung in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD453364
    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 Pennsylvania license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 85.5 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.

  1. Qualityout of 100 · 30% of the final score73.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Thomas Hin-Chai Leung among 681 dermatology physician records in Pennsylvania

Thomas Hin-Chai Leung, M.D. PH.D. is one of 681 dermatology physician records with a practice address in Pennsylvania. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 47% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileNo · 71% of these records are
  • Record last updated2015 · 56% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Pennsylvania

There are 681 dermatology physician records in Pennsylvania.

The 8 dermatology physician records with the nearest ZIP codes

  1. George Cotsarelis, MDPhiladelphia, PA 191041871540831
  2. Rosalie Elenitsas, MDPhiladelphia, PA 191041932134533
  3. Steven Fakharzadeh, MDPhiladelphia, PA 191041073538641
  4. Joel Gelfand, MDPhiladelphia, PA 191041710902382
  5. Jonathan Kantor, MDPhiladelphia, PA 191041326038886
  6. James Leyden, MDPhiladelphia, PA 191041124053731
  7. David Margolis, MDPhiladelphia, PA 191041740205327
  8. Alain Rook, MDPhiladelphia, PA 191041760417372

Common questions

What is Thomas Hin-Chai Leung, M.D. PH.D.'s NPI number?

Thomas Hin-Chai Leung, M.D. PH.D.'s National Provider Identifier (NPI) is 1871773036, issued on Nov 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Hin-Chai Leung, M.D. PH.D. located?

The NPPES record lists a practice address at 421 Curie Blvd, Philadelphia, PA, 19104. Phone: (215) 898-3240. Providers update this record themselves, so call before visiting.

How can I verify Thomas Hin-Chai Leung, M.D. PH.D.'s license?

NPPES lists Pennsylvania license number MD453364, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Thomas Hin-Chai Leung, M.D. PH.D.'s MIPS final score?

The 2023 MIPS final score is 85.5 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.