Xixi Xu
- Medicare services, 2023
- 258
- Part D claims, 2022
- 15
- Hospital affiliations
- 1
- Industry payments
- $144
- Medical group
- 1
- Practice address
- 55 Lake Avenue North, Worcester, MA 01655
- Practice phone
- Call (508) 334-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Xixi Xu's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Xixi Xu is a hospitalist in Boston, Massachusetts
Xixi Xu practices at UMass Memorial Medical Center - University Campus in Worcester, Massachusetts, part of UMass Memorial Health Care.
Xixi Xu's NPI, 1811458722, was assigned on March 26, 2019. Xixi Xu holds Massachusetts license 291700.
- NPI
- 1811458722NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466786298
- NPI enumeration date
- March 26, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 334-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Xixi Xu practices in Worcester and Boston
Xixi Xu's primary practice is UMass Memorial Medical Center - University Campus, at 55 Lake Avenue North, Worcester, MA 01655 in Worcester County. The practice phone is (508) 334-1000. The NPI Registry lists Xixi Xu's practice address as 330 Brookline Ave, Boston, MA 02215.
- UMass Memorial Medical Center - University CampusPrimary55 Lake Avenue North, Worcester, MA 01655 · Worcester CountyPhone(508) 334-1000
- NPI Registry address330 Brookline Ave, Boston, MA 02215 · Suffolk CountyPhone(617) 754-4677
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Xixi Xu is affiliated with 1 site of care and 1 medical group
Xixi Xu's primary practice is UMass Memorial Medical Center - University Campus in Worcester, Massachusetts, part of UMass Memorial Health Care. The medical group on file is UMass Memorial Medical Group.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Xixi Xu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Xixi Xu practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UMass Memorial Medical Center - University Campus | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across UMass Memorial Health Care and 6.2K+ hospitals, with verified contacts in the same login.
Xixi Xu is one of 502 hospitalists in Massachusetts
Hospitalist is Xixi Xu's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Xixi Xu is licensed in Massachusetts.
Specialties and state licenses
- Hospitalist, MassachusettsPrimary
Hospitalists near Xixi Xu
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Xixi Xu billed Medicare for 258 services in 2023
CMS data shows 258 Medicare services from Xixi Xu across 4 procedure codes in 2023. Medicare paid $24,969 for them. Every service was in a facility, such as a hospital, rather than an office.
Xixi Xu's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1712023: 25851%
Xixi Xu compared with the Massachusetts median for hospitalists, 2023
- Xixi Xu
- Massachusetts median
- Medicare services
- 258vs 46444% below
- Part D claims
- 15vs 6577% below
Medians across 477 hospitalists in Massachusetts with Dmand AI profiles that report each measure.
Xixi Xu's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Xixi Xu and other hospitalists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Xixi Xu wrote 15 Medicare Part D claims in 2022
In 2022, Xixi Xu wrote 15 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $228 in total drug cost. In 2021, CMS named 53 claims across 3 drugs.
Xixi Xu's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 532022: 1572%
Drugs named by CMS: 1 in 2022, 3 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Xixi Xu takes part in Medicare
Xixi Xu accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Xixi Xu received $144 in industry payments in 2024
CMS Open Payments shows 2 general payments to Xixi Xu from 2 drug and device companies in 2024. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $119.
Companies that paid Xixi Xu the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Xixi Xu's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Xixi Xu
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Xixi Xu's NPI number?
Xixi Xu's NPI number is 1811458722. It was assigned on March 26, 2019, and it is active in the NPI Registry.
What does Xixi Xu specialize in?
Xixi Xu is a hospitalist in Boston, Massachusetts. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Xixi Xu practice?
Xixi Xu practices at 55 Lake Avenue North, Worcester, MA 01655. Xixi Xu also practices at 330 Brookline Ave, Boston, MA 02215. Xixi Xu's primary practice is UMass Memorial Medical Center - University Campus in Worcester, Massachusetts, part of UMass Memorial Health Care.
What is Xixi Xu's office phone number?
The practice phone on file for Xixi Xu is (508) 334-1000.
What is Xixi Xu's medical license number?
Xixi Xu holds Massachusetts license 291700.
Which hospitals is Xixi Xu affiliated with?
Xixi Xu practices at UMass Memorial Medical Center - University Campus in Worcester, Massachusetts.
What medical group is Xixi Xu part of?
Xixi Xu is linked to UMass Memorial Medical Group.
Does Xixi Xu accept Medicare?
Yes. CMS data shows Xixi Xu billed Medicare for 258 services in 2023, and Xixi Xu accepts Medicare assignment.
What services does Xixi Xu bill to Medicare?
In 2023, Xixi Xu's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).
What drugs does Xixi Xu prescribe most?
In 2022 Medicare Part D data, Xixi Xu's most prescribed drugs by claims were Atorvastatin Calcium.
Has Xixi Xu received payments from drug or device companies?
CMS Open Payments shows $144 in general payments to Xixi Xu from 2 companies from 2024 to 2024. The largest total came from Gilead Sciences, Inc.
How long has Xixi Xu been practicing?
Xixi Xu's NPI was assigned in 2019.
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