Alexander S. Chiu

  • Madison, WI
  • General surgeon
NPI1194145334PAC ID6507187630
Medicare services, 2024
124
Medicare patients, 2024
81
Part D claims, 2024
15
Publications
67
MIPS score, 2024
83
Practice address
600 Highland Ave, Madison, WI 53792
Practice phone
Call (608) 265-1978
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

University Health Services - Madison (Highland Ave)

College / University Student Health · Madison, Wisconsin

See all 5 affiliations

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Alexander S. Chiu is a general surgeon in Madison, Wisconsin

Alexander Chiu practices at University Health Services - Madison (Highland Ave) in Madison, Wisconsin.

Alexander Chiu's NPI, 1194145334, was assigned on April 25, 2014. Alexander Chiu graduated from University of Chicago, Pritzker School of Medicine in 2014. Alexander Chiu holds Wisconsin license 74985.

NPI and contact details
Medicare PAC ID
6507187630
NPI enumeration date
April 25, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(608) 265-1978
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
38
Medical school graduation
2014

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Alexander S. Chiu practices at University Health Services - Madison (Highland Ave) in Madison, Wisconsin

Alexander Chiu's primary practice is University Health Services - Madison (Highland Ave), at 600 Highland Ave, Madison, WI 53792. The practice phone is (608) 265-1978.

  • University Health Services - Madison (Highland Ave)
    600 Highland Ave, Madison, WI 53792Phone(608) 265-1978

Source: Dmand AI Affiliation Data

Alexander S. Chiu is affiliated with 4 sites of care and 1 medical group

Alexander Chiu's primary practice is University Health Services - Madison (Highland Ave) in Madison, Wisconsin. Alexander Chiu is also affiliated with University Hospital. The medical group on file is UW Health. Dmand AI also links Alexander Chiu to 1 more hospital and 1 group practice or clinic, each named with a free account. Alexander Chiu's employer is on file too: a school & student health.

See all 5 affiliations for Alexander Chiu

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Alexander S. Chiu's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Alexander Chiu practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
University Health Services - Madison (Highland Ave)Available with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Alexander S. Chiu is one of 565 general surgeons in Wisconsin

Surgery is Alexander Chiu's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Alexander Chiu's licenses on file in 2 states: Wisconsin and Illinois.

Specialties and state licenses

  • Surgery, WisconsinPrimaryLicense 74985 · taxonomy 208600000X
  • Illinois licenseLicense C00001784349

General surgeons near Alexander Chiu

Counts of general surgeons 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

Alexander S. Chiu billed Medicare for 124 services in 2024

CMS data shows 124 Medicare services from Alexander Chiu across 7 procedure codes in 2024, for 81 Medicare patients. Medicare paid $13,366 for them.

Medicare services, 2024124
Medicare patients81
Paid by Medicare$13,366
Procedure codes7

Alexander Chiu's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 452024: 474%
Imaging
2023: 472024: 4015%
Surgery
2023: 452024: 3718%

Where Alexander Chiu's Medicare services took place, 2024

  • In an office2319%
  • In a facility10181%

Alexander Chiu compared with the Wisconsin median for general surgeons, 2024

  • Alexander Chiu
  • Wisconsin median
Medicare services
124vs 9925% above
Medicare patients
81vs 10019% below
Part D claims
25vs 3732% below

Medians across 557 general surgeons in Wisconsin with Dmand AI profiles that report each measure.

Alexander Chiu's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Alexander Chiu

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Alexander S. Chiu treated 81 Medicare patients in 2024, average age 73

CMS counts 81 Medicare patients who saw Alexander Chiu in 2024. The largest group is 65 to 74, with 46 patients. 75% of them have high blood pressure, and 72% have high cholesterol. Their average risk score is 1.23, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Alexander Chiu's median patient age at 66, with 73% women.

Medicare patients, 202481
Average age73
Average risk score1.23

Alexander Chiu's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Alexander Chiu's Medicare patients by sex, 2024

  • Women5365%
  • Men2835%

Chronic conditions among Alexander Chiu's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol72%
  3. Arthritis48%
  4. Osteoporosis32%
  5. Diabetes31%
  6. Chronic kidney disease25%
  7. Mood disorders25%
  8. Depression23%

Share of Medicare patients with each condition. A patient can have several.

Alexander Chiu's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women73%
  • Men26%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Alexander S. Chiu wrote 15 Medicare Part D claims in 2024

In 2024, Alexander Chiu wrote 15 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $27 in total drug cost. In 2021, CMS named 19 claims across 1 drug.

Part D claims, 202415
Drugs named by CMS1
Total drug cost$27

Alexander Chiu'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: 192022: 2532%

Drugs named by CMS: 1 in 2022, 1 in 2021.

See all prescribing by Alexander Chiu

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Alexander S. Chiu scored 83 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Alexander Chiu for performance year 2024, reported as part of a group. Alexander Chiu accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Alexander Chiu as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Alexander Chiu's MIPS scores, performance year 2024

  • 83of 100Final score
  • 87.8of 100Quality
  • 77of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 76of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Alexander S. Chiu has 67 publications on record

Dmand AI links 67 papers to Alexander Chiu, published from 2013 to 2025. 2018 was the busiest year, with 12. The most frequent topics are Length of Stay, Pain, Postoperative and Practice Patterns, Physicians'. Alexander Chiu has published most often in J Surg Res. Alexander Chiu's most frequent co-authors are Raymond Alexander Jean, MD, Kevin Y. Pei, MD and Benjamin Resio.

Papers67
Years published2013 to 2025

Alexander Chiu's papers by year, 2013 to 2025

Topics Alexander Chiu writes about most

  • Length of Stay
  • Pain, Postoperative
  • Practice Patterns, Physicians'
  • Analgesics, Opioid
  • Healthcare Disparities
  • Internship and Residency
  • Postoperative Complications
  • Thyroid Neoplasms

Alexander Chiu's most frequent co-authors

Recent publications by Alexander Chiu

See all 67 publications and co-authors

See who Alexander Chiu researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Alexander Chiu works with, so you can find a warm path to the right general surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Alexander S. Chiu received $1,206 in industry payments in 2024

CMS Open Payments shows 5 general payments to Alexander Chiu from 2 drug and device companies in 2024. Education make up the largest share, 62% of the total. Intuitive Surgical, Inc. paid the most, $1,178.

General payments to Alexander Chiu by kind, 2024 to 2024

$1.2Kin total
  • Education$75062%
  • Travel and lodging$40233%
  • Food and beverage$545%

Companies that paid Alexander Chiu the most, 2024 to 2024

Share is of all general payments to this clinician.

See all payments to Alexander Chiu

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Alexander S. Chiu graduated from University of Chicago, Pritzker School of Medicine

Alexander Chiu graduated from University of Chicago, Pritzker School of Medicine in 2014.

  1. Medical schoolUniversity of Chicago, Pritzker School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Alexander S. Chiu's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Alexander S. Chiu

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Alexander S. Chiu's NPI number?

Alexander S. Chiu's NPI number is 1194145334. It was assigned on April 25, 2014, and it is active in the NPI Registry.

What does Alexander S. Chiu specialize in?

Alexander S. Chiu is a general surgeon in Madison, Wisconsin. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Alexander S. Chiu practice?

Alexander Chiu practices at 600 Highland Ave, Madison, WI 53792. Alexander Chiu's primary practice is University Health Services - Madison (Highland Ave) in Madison, Wisconsin. Dmand AI also links Alexander Chiu to 1 hospital and 1 group practice or clinic.

What is Alexander S. Chiu's office phone number?

The practice phone on file for Alexander Chiu is (608) 265-1978.

What is Alexander S. Chiu's medical license number?

Alexander Chiu holds Wisconsin license 74985, one of the licenses on file in 2 states.

Which states has Alexander S. Chiu been licensed in?

Dmand AI has state licenses on file for Alexander Chiu in Wisconsin and Illinois.

Which hospitals is Alexander S. Chiu affiliated with?

Alexander Chiu is affiliated with University Hospital. Dmand AI links Alexander Chiu to 1 more hospital.

What medical group is Alexander S. Chiu part of?

Alexander Chiu is linked to UW Health.

Does Alexander S. Chiu accept Medicare?

Yes. CMS data shows Alexander Chiu billed Medicare for 124 services in 2024, and Alexander Chiu accepts Medicare assignment.

Does Alexander S. Chiu offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Alexander Chiu as offering telehealth services.

Show 9 more questionsShow fewer questions

What is Alexander S. Chiu's MIPS score?

Alexander Chiu's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.

How many Medicare patients does Alexander S. Chiu see?

CMS counts 81 Medicare patients who saw Alexander Chiu in 2024, with an average age of 73.

What services does Alexander S. Chiu bill to Medicare?

In 2024, Alexander Chiu's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99213) and ultrasound (76536).

Where did Alexander S. Chiu go to medical school?

Alexander Chiu graduated from University of Chicago, Pritzker School of Medicine in 2014.

What drugs does Alexander S. Chiu prescribe most?

In 2022 Medicare Part D data, Alexander Chiu's most prescribed drugs by claims were Oxycodone HCl.

Has Alexander S. Chiu received payments from drug or device companies?

CMS Open Payments shows $1,206 in general payments to Alexander Chiu from 2 companies from 2024 to 2024. The largest total came from Intuitive Surgical, Inc.

How long has Alexander S. Chiu been practicing?

Alexander Chiu graduated from medical school in 2014, 12 years ago.

Does Alexander S. Chiu do research?

Dmand AI links 67 publications to Alexander Chiu, published from 2013 to 2025.

Who does Alexander S. Chiu publish with?

Alexander Chiu's most frequent co-authors are Raymond Alexander Jean, MD (25 shared papers), Kevin Y. Pei, MD (15 shared papers) and Benjamin Resio (11 shared papers).

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