Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Wenlan Duan

Individual provider Internal Medicine Physician · NPI 1336374446

Wenlan Duan is an Internal Medicine Physician in New York, New York. Licensed in Texas. Registered with an NPI since 2009.

Licensed in
TX
In the registry since
2009
Specialties on file
2
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Practice location Address checks out

170 William St
New York, NY 10038-2612 Not confirmed with CMS for 13 years — call before visiting
Phone: (212) 312-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence BP1-0035391 (TX)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1336374446
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMay 18, 2009
Last updated in NPPESJanuary 2, 2013

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients16
Services billed 23 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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