NPPES file of Aug 9, 2026

Xin Xu

Pharmacist · Milwaukee, WI

Xin Xu is a pharmacist with a practice address in Milwaukee, Wisconsin, and NPI 1841809035, issued on Jul 24, 2020. Check the license (Wisconsin 20247, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841809035
Name
Xin Xu
Primary taxonomy
Pharmacist 183500000X
License number
20247 WI
Self-reported in NPPES; status is on the state search
Practice location
3701 S Howell Ave, Milwaukee, WI 53207
Phone
(414) 482-1470
Enumerated
Jul 24, 2020
Record last updated
Jul 24, 2020 (not updated in 6 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 3701 S Howell Ave

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

  1. Charles Becker, RPHPharmacist1730463621
  2. Kelly Castaldo, PHARM. D.Pharmacist1861776536
  3. Long Hua, PHARMDPharmacist1598048696
  4. Daniel KoladePharmacist1144147091
  5. Carolyn MilinovichPharmacist1558647248
  6. Timothy PietrzakPharmacist1205112455

Verify Xin Xu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 20247
    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
Find the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs

24 Medicare Part D claims for 19 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. Xin Xu24
  2. Specialty average119

Most prescribed

Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.

  1. Arexvy11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Xin Xu among 5,397 pharmacist records in Wisconsin

Xin Xu is one of 5,397 pharmacist records with a practice address in Wisconsin. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 65% of them.

  • NPI issued2020 · 65% of these records are older, 18% newer
  • In a Medicare fileYes · 16% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2020 · 78% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

807 pharmacist records list a practice address in Milwaukee

They are 807 of the 18,389 NPPES records with a practice address in Milwaukee, and 5,397 pharmacist records in Wisconsin.

The 8 pharmacist records with the nearest ZIP codes

  1. Charles Becker, RPHMilwaukee, WI 532071730463621
  2. Kelsey Bower, PHARMDMilwaukee, WI 532071063798544
  3. Kelly Castaldo, PHARM. D.Milwaukee, WI 532071861776536
  4. Jaime Cronin, PHARMDMilwaukee, WI 532071023304144
  5. Jarod Gingreau, RPHMilwaukee, WI 532071700918232
  6. Long Hua, PHARMDMilwaukee, WI 532071598048696
  7. Carolyn MilinovichMilwaukee, WI 532071558647248
  8. James Osielski, RPHMilwaukee, WI 532071326315995

Common questions

What is Xin Xu's NPI number?

Xin Xu's National Provider Identifier (NPI) is 1841809035, issued on Jul 24, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Xin Xu located?

The NPPES record lists a practice address at 3701 S Howell Ave, Milwaukee, WI, 53207. Phone: (414) 482-1470. Providers update this record themselves, so call before visiting.

How can I verify Xin Xu's license?

NPPES lists Wisconsin license number 20247, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Xin Xu prescribe under Medicare Part D?

In 2024, Xin Xu had 24 Medicare Part D claims for 19 beneficiaries; the average among pharmacist prescribers was 119. Part D covers Medicare prescriptions only.

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.