NPPES file of Aug 9, 2026

Alexander S. Chiu

Surgery Physician · Madison, WI

Alexander S. Chiu is a surgery physician with a practice address in Madison, Wisconsin, and NPI 1194145334, issued on Apr 25, 2014. Check the license (Wisconsin 74985, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1194145334
Name
Alexander S. Chiu
Primary taxonomy
Surgery Physician 208600000X
License numbers
74985 WI
C00001784349 IL
Self-reported in NPPES; status is on the state search
Practice location
4602 Eastpark Blvd, Madison, WI 53718
Phone
(608) 242-2888
Enumerated
Apr 25, 2014
Record last updated
Sep 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210728003163); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 2014
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4602 Eastpark Blvd

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

  1. Betty Allen, MDSurgery Physician1043745755
  2. Atalie Andersen, APNPNurse Practitioner1326770744
  3. Lucinda ArnoldPhysical Therapist1396392171
  4. Elani Balis, PA-CSurgical Physician Assistant1285385708
  5. Patricia Baumgartner, COOrthotist1467282756
  6. Kyle Berg, DPT, PTPhysical Therapist1033042668

Verify Alexander S. Chiu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 74985
    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
Open 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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90% fewer Medicare Part D claims than the average surgery physician in 2024

15 Medicare Part D claims, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.

  1. Alexander Chiu15
  2. Specialty average147

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.

Industry payments in 2024: $1,206.31

5 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alexander Chiu$1,206.31
  2. Specialty average$3,513.80

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. University OF Wisconsin Medical Foundation IncMadison, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alexander S. Chiu among 726 surgery physician records in Wisconsin

Alexander S. Chiu is one of 726 surgery physician records with a practice address in Wisconsin. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.

  • NPI issued2014 · 74% of these records are older, 23% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2014 · median 2006 among the 446 with a school on file
  • Record last updated2021 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Wisconsin

There are 726 surgery physician records in Wisconsin.

The 8 surgery physician records with the nearest ZIP codes

  1. Betty Allen, MDMadison, WI 537181043745755
  2. Caitlin Finn, MDMadison, WI 537181396242087
  3. David Harris, M.D.Madison, WI 537181669815585
  4. Lisa Netkowicz, MDMadison, WI 537181710321807
  5. Victoria Rendell, M.D.Madison, WI 537181134515513
  6. Paul Huepenbecker, MDMadison, WI 537171134187024
  7. Roland Vega, MDMadison, WI 537171518922293
  8. Ronald Wenger, MDMadison, WI 537161538101514

Common questions

What is Alexander S. Chiu's NPI number?

Alexander S. Chiu's National Provider Identifier (NPI) is 1194145334, issued on Apr 25, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Alexander S. Chiu located?

The NPPES record lists a practice address at 4602 Eastpark Blvd, Madison, WI, 53718. Phone: (608) 242-2888. Providers update this record themselves, so call before visiting.

How can I verify Alexander S. Chiu's license?

NPPES lists Wisconsin license number 74985, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alexander S. Chiu prescribe under Medicare Part D?

In 2024, Alexander S. Chiu had 15 Medicare Part D claims; the average among surgery physician prescribers was 147. 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.