Deirdre Duffy, M.D.
Obstetrics & Gynecology Physician · Watertown, WI
Deirdre Duffy, M.D. is an obstetrics & gynecology physician with a practice address in Watertown, Wisconsin, and NPI 1962475426, issued on Feb 7, 2006. Check the license (Wisconsin 48442, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Deirdre Duffy
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 48442 WI
Self-reported in NPPES; status is on the state search - Practice location
- 109 Air Park Dr, Watertown, WI 53094
- Phone
- (262) 928-5100
- Enumerated
- Feb 7, 2006
- Record last updated
- Dec 9, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 34688900 WI
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 796 in Wisconsin → Look up another NPI →
Also registered at 109 Air Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Edward Frost, MDInternal Medicine Physician1184698227
- Catherine Onsrud, FNPFamily Nurse Practitioner1902981673
- Cherri Schleicher, APNPFamily Nurse Practitioner1851350383
- Jewel Schneider, APNPNurse Practitioner1225579253
Verify Deirdre Duffy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 48442Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Deirdre Duffy among 796 obstetrics & gynecology physician records in Wisconsin
Deirdre Duffy, M.D. 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 not. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 47% newer
- In a Medicare fileNo · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2010 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 796 in Wisconsin → Every provider in Watertown → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Roxanna AldstadtWest Bend, WI 530951457431819
- Irene Bozich, M.D.West Bend, WI 530951790084002
- Scott Donovan, MDWest Bend, WI 530951467494633
- Janet Goldman, MDWest Bend, WI 530951063438109
- Elissa Hellman, MDWest Bend, WI 530951205072287
- Anne Lipinski, MDWest Bend, WI 530951154354280
- Elizabeth MalechaWest Bend, WI 530951487736211
- Michelle Miller, M.D.West Bend, WI 530951255354940
Common questions
What is Deirdre Duffy, M.D.'s NPI number?
Deirdre Duffy, M.D.'s National Provider Identifier (NPI) is 1962475426, issued on Feb 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Deirdre Duffy, M.D. located?
The NPPES record lists a practice address at 109 Air Park Dr, Watertown, WI, 53094. Phone: (262) 928-5100. Providers update this record themselves, so call before visiting.
How can I verify Deirdre Duffy, M.D.'s license?
NPPES lists Wisconsin license number 48442, 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. 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.