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

Xun Wu

Individual provider Internal Medicine Physician · NPI 1942650569

Xun Wu is a Hospitalist in Boston, Massachusetts. Graduated from University of Massachusetts Medical School in 2016, 10 years ago. Practices with Emerson Practice Associates, Inc, a 247-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
10
Trained at
University of Massachusetts Medical School
Licensed in
MA
In the registry since
2016
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Practice location Address checks out

800 Washington St
Boston, MA 02111 Not confirmed with CMS for 10 years — call before visiting
Phone: (617) 636-5000
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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 267640 (MA)

Record details

NPI number1942650569
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 14, 2016
Last updated in NPPESJune 14, 2016

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2016 (10 years in practice)
Group practice Emerson Practice Associates, Inc — 247 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients510
Services billed 528 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at Emerson Practice Associates, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 247 clinicians in the practice; 12 are shown here.

Other providers in Boston