Registry data as of Aug 27, 2026

Michael Didion, DO

Anesthesiology Physician · Milwaukee, WI

Michael Didion, DO is an anesthesiology physician with a practice address in Milwaukee, Wisconsin, and NPI 1134338841, issued on May 21, 2007. Check the license on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1134338841
Name
Michael Didion
Credential
DO
Primary taxonomy
Anesthesiology Physician 207L00000X
Practice location
3305 S 20TH St, Milwaukee, WI 53215
Phone
(414) 384-2100
Enumerated
May 21, 2007
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 3305 S 20TH St

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

  1. Elizabeth ChadwickChiropractor1811836117
  2. Scott Hardin, MDPhysical Medicine & Rehabilitation Physician1518074129
  3. Kong Her, PA-CPhysician Assistant1720394463
  4. Ifeyinwa Igwe, M.D.Internal Medicine Physician1508021593
  5. Ashley Moriwaki, DNP, RN, APNPNurse Practitioner1902214612
  6. Melissa NowickiNurse Practitioner1679831655

Verify Michael Didion in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck 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.

95% fewer Medicare Part D claims than the average anesthesiology physician in 2024

42 Medicare Part D claims, against an average of 823 among the 5,474 providers of this specialty who prescribed in Part D.

  1. Michael Didion42
  2. Specialty average823

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.

373 anesthesiology physician records list a Milwaukee practice address

They are 373 of the 18,389 NPPES records with a Milwaukee practice address, and 1,228 anesthesiology physician records in Wisconsin.

Other anesthesiology physician records in Wisconsin

  1. Mark Aasen, MDGreenfield, WI1184609356
  2. Heather Abernethy, MDMadison, WI1104826288
  3. Carter Abicht, DOLa Crosse, WI1932736642
  4. Stephen Abram, MDMilwaukee, WI1356392823
  5. Cory Adams, MDMilwaukee, WI1902066780
  6. Mark Adams, M.D.Milwaukee, WI1851378699
  7. Jason Adkins, D.O.Milwaukee, WI1205299633
  8. Melissa Aebly, MDWeston, WI1811152739
  9. Kathleen Agard, MDJanesville, WI1558503235
  10. Anil Aggarwal, M.D.Menomonee Falls, WI1164405288

Common questions

What is Michael Didion, DO's NPI number?

Michael Didion, DO's National Provider Identifier (NPI) is 1134338841, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Michael Didion, DO located?

The NPPES record lists a practice address at 3305 S 20TH St, Milwaukee, WI, 53215. Phone: (414) 384-2100. Providers update this record themselves, so call before visiting.

How can I verify Michael Didion, DO's license?

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 Michael Didion, DO prescribe under Medicare Part D?

In 2024, Michael Didion, DO had 42 Medicare Part D claims; the average among anesthesiology physician prescribers was 823. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.