Deirdre Duffy, M.D.
NPI 1962475426 · Obstetrics & Gynecology Physician · Watertown, WI
Deirdre Duffy, M.D. is a Obstetrics & Gynecology Physician provider in Watertown, WI (NPI 1962475426).
Provider details
- NPI number
- 1962475426
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 48442 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-07
- Last updated
- 2010-12-09
Frequently asked questions
- What is Deirdre Duffy's NPI number?
- Deirdre Duffy's National Provider Identifier (NPI) is 1962475426, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deirdre Duffy's specialty?
- Deirdre Duffy is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Deirdre Duffy located?
- Deirdre Duffy's practice location on file with NPPES is 109 Air Park Dr, Watertown, WI 53094-7400.
- What is Deirdre Duffy's phone number?
- The practice phone number listed in the NPPES registry for Deirdre Duffy is (262) 928-5100.
- Is Deirdre Duffy's NPI active?
- Yes — Deirdre Duffy's NPI (1962475426) is active in the NPPES registry as of the last update on 2010-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.