NPPES file of Aug 9, 2026

Michael C. O'Toole, MD

Obstetrics & Gynecology Physician · Green Bay, WI

Michael C. O'Toole, MD is an obstetrics & gynecology physician with a practice address in Green Bay, Wisconsin, and NPI 1033167077, issued on May 4, 2006. Check the license (Wisconsin 44464-020, 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
1033167077
Name
Michael C. O'Toole
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
44464-020 WI
Self-reported in NPPES; status is on the state search
Practice location
2641 Development Drive, Green Bay, WI 54311
Phone
(920) 338-6868
Enumerated
May 4, 2006
Record last updated
Aug 8, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(920) 338-6869
Medicare enrollment
Enrolled (PECOS I20101027000172); accepts Medicare assignment
Medical or professional school
University Of Alabama School Of Medicine, 1998
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 obstetrics & gynecology physician records → All 796 in Wisconsin → Look up another NPI →

Also registered at 2641 Development Drive

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

  1. Linda Haen, FNPCNurse Practitioner1013086271
  2. Randi Mann, NPNurse Practitioner1427016609
  3. Ngozi Mbah, M.D.Obstetrics & Gynecology Physician1861606451

Verify Michael C. O'Toole in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 44464-020    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 2 group practices

  1. Bellin Memorial Hospital IncGreen Bay, WI
  2. Oconto Hospital And Medical Center IncMarinette, WI

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

Michael C. O'Toole among 796 obstetrics & gynecology physician records in Wisconsin

Michael C. O'Toole, MD is one of 796 obstetrics & gynecology physician records with a practice address in Wisconsin. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 47% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1998 · median 2007 among the 478 with a school on file
  • Record last updated2017 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Wisconsin

There are 796 obstetrics & gynecology physician records in Wisconsin.

All 796 in Wisconsin → Every provider in Green Bay → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Rachael Baird, MDGreen Bay, WI 543111538620885
  2. Jenny ChristlGreen Bay, WI 543111669934063
  3. Samantha Haefner, MDGreen Bay, WI 543111073189338
  4. Peter Johnson, MDGreen Bay, WI 543111306953831
  5. Ngozi Mbah, M.D.Green Bay, WI 543111861606451
  6. Jory Ough, M.D.Green Bay, WI 543111457518532
  7. Constance PantonGreen Bay, WI 543111255919916
  8. Megan Temp, M.D.Green Bay, WI 543111063429421

Common questions

What is Michael C. O'Toole, MD's NPI number?

Michael C. O'Toole, MD's National Provider Identifier (NPI) is 1033167077, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael C. O'Toole, MD located?

The NPPES record lists a practice address at 2641 Development Drive, Green Bay, WI, 54311. Phone: (920) 338-6868. Providers update this record themselves, so call before visiting.

How can I verify Michael C. O'Toole, MD's license?

NPPES lists Wisconsin license number 44464-020, 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.