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XIXI XU
NPI 1811458722
Internal Medicine - Gastroenterology in Worcester, MA

Active since March 26, 2019PECOS Enrolled
55 LAKE AVE N, WORCESTER, MA 01655(508) 334-3068 Get Directions Write a Review

NPPES record last updated: March 27, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 27, 2026, Mar 9, 2026 (2 updates tracked since 2026).

About Xixi Xu NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

XIXI XU (NPI 1811458722) is an individual gastroenterology provider in Worcester, Massachusetts, licensed in Massachusetts (291700) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Boston University School Of Medicine (2019).

NPPES Registry Identity

NPI1811458722
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameXIXI XU
Location Address55 LAKE AVE NWorcester, MA 01655-0002
Mailing AddressPo Box 415348Boston, MA 02241-5348 · (800) 225-8885
Phone(508) 334-3068
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 2019
Enumeration DateMarch 26, 2019
Last NPPES UpdateMarch 27, 20262 updates tracked since enumeration
NPPES CertifiedMarch 27, 2026
✔ NPI 1811458722 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in MA · 291700
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
55 LAKE AVE N, Worcester, MA 01655
Open in Google Maps ↗

Secondary Practice Locations 3

Location 121 Eastern AveWorcester, MA 01605-3094 · Phone (508) 334-8419
Location 2119 Belmont StWorcester, MA 01605-2903 · Phone (508) 334-3068
Location 328 Newton StSouthborough, MA 01772-1215 · Phone (508) 334-3068

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Xixi Xu is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2466786298
PECOS Enrollment IDI20260527001936
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01655 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HILLARY R. IRONS MD
Emergency Medicine
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 421-1400
MS. EILEEN A. DUHAMEL NP
Nurse Practitioner
55 LAKE AVE N, DEPARTMENT OF RADIOLOGY
WORCESTER, MA 01655
Worcester County (508) 334-2710
EWA HRYNISZYN CRNA
Nurse Anesthetist, Certified Registered
55 LAKE AVE N, DEPARTMENT OF ANESTHESIOLOGY
WORCESTER, MA 01655
Worcester County (508) 334-3271
HELEN COPSEY PA-C
Physician Assistant
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 334-8585
DR. ADEPEJU GBADEBO CHAMPION M.D.
Internal Medicine
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 334-2731
SOWMYA KORAPATI
Internal Medicine (Hematology & Oncology)
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 334-3550
LAYLA FAKHRZADEH M.D.
Anesthesiology
55 LAKE AVE N, ANESTHESIOLOGY
WORCESTER, MA 01655
Worcester County (508) 334-3271
YOONYIE CHO M.D.
Anesthesiology
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 334-1000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Xixi Xu's NPI number?

The NPI number for Xixi Xu is 1811458722. It was assigned to this individual provider in the NPPES registry on March 26, 2019.

Where is Xixi Xu located?

Xixi Xu practices at 55 Lake Ave N, Worcester, MA 01655. The listed phone number is (508) 334-3068.

What is Xixi Xu's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Xixi Xu enrolled in Medicare?

Yes. Xixi Xu is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Xixi Xu was last updated on March 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.