NPPES file of Aug 9, 2026

Stephen Chao, M.D.

Anesthesiology Physician · Milwaukee, WI

Stephen Chao, M.D. is an anesthesiology physician with a practice address in Milwaukee, Wisconsin, and NPI 1508220831, issued on Apr 12, 2016. Check the license (Wisconsin 77274, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1508220831
Name
Stephen Chao
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License numbers
77274 WI
62485 MN
Self-reported in NPPES; status is on the state search
Practice location
2900 W Oklahoma Ave, Milwaukee, WI 53215
Phone
(414) 649-6000
Enumerated
Apr 12, 2016
Record last updated
Jul 24, 2023
Medicaid ID
100069350 WI
Medicare enrollment
Enrolled (PECOS I20220825001875); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 2016
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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8 nearest anesthesiology physician records → All 1,313 in Wisconsin → Look up another NPI →

Also registered at 2900 W Oklahoma Ave

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

  1. Hamza Abdul Majeed, DOHospitalist Physician1881013282
  2. Vincent Abejuela, DOHospitalist Physician1356928543
  3. Islam Abo Al Nadie, MDHospitalist Physician1326618786
  4. Zaid Abood, MDHospitalist Physician1194254334
  5. Syed AbutalibHematology & Oncology Physician1114183290
  6. Kalid Adab, MDHematology & Oncology Physician1346473345

Verify Stephen Chao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 77274    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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Bills Medicare through one group practice

  1. Aurora Medical Group, Inc.Milwaukee, WI

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

Stephen Chao among 1,313 anesthesiology physician records in Wisconsin

Stephen Chao, M.D. is one of 1,313 anesthesiology 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 2016, is newer than 80% of them.

  • NPI issued2016 · 80% of these records are older, 18% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2016 · median 2006 among the 872 with a school on file
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

387 anesthesiology physician records list a practice address in Milwaukee

They are 387 of the 18,389 NPPES records with a practice address in Milwaukee, and 1,313 anesthesiology physician records in Wisconsin.

All 1,313 in Wisconsin → Every provider in Milwaukee → Anesthesiology Physician nationwide →

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Devin Artley, M.D.Milwaukee, WI 532151831172881
  2. Vetrivel Balakrishnan, M.D.Milwaukee, WI 532151619950672
  3. Douglas Bell, M.D.Milwaukee, WI 532151154304129
  4. George Brodzinski, M.D.Milwaukee, WI 532151952384935
  5. D Cheng, M.D.Milwaukee, WI 532151326021049
  6. John Cherukara, MDMilwaukee, WI 532151447240098
  7. Donald Chrzan, M.D.Milwaukee, WI 532151053394684
  8. James Ducanto, MDMilwaukee, WI 532151861475790

Common questions

What is Stephen Chao, M.D.'s NPI number?

Stephen Chao, M.D.'s National Provider Identifier (NPI) is 1508220831, issued on Apr 12, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Chao, M.D. located?

The NPPES record lists a practice address at 2900 W Oklahoma Ave, Milwaukee, WI, 53215. Phone: (414) 649-6000. Providers update this record themselves, so call before visiting.

How can I verify Stephen Chao, M.D.'s license?

NPPES lists Wisconsin license number 77274, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.