IndividualActive
Stephen Dufresne, M.D.
NPI 1861465791 · Internal Medicine Physician · Muskego, WI
Stephen Dufresne, M.D. is a Internal Medicine Physician provider in Muskego, WI (NPI 1861465791).
Provider details
- NPI number
- 1861465791
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 27446 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
Prohealth Care Medical Centers-Muskego
S69 W15636 Janesville Road
Muskego, WI 53150
Phone: (262) 928-7000
Fax: (414) 422-2075
Approximate (ZIP-level) locationGet directions
Mailing address
Waukesha Health Care Inc.
Waukesha, WI 53188-1177
Registry dates
- Enumerated
- 2006-02-10
- Last updated
- 2009-03-13
Frequently asked questions
- What is Stephen Dufresne's NPI number?
- Stephen Dufresne's National Provider Identifier (NPI) is 1861465791, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Dufresne's specialty?
- Stephen Dufresne is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Dufresne located?
- Stephen Dufresne's practice location on file with NPPES is Prohealth Care Medical Centers-Muskego, Muskego, WI 53150.
- What is Stephen Dufresne's phone number?
- The practice phone number listed in the NPPES registry for Stephen Dufresne is (262) 928-7000.
- Is Stephen Dufresne's NPI active?
- Yes — Stephen Dufresne's NPI (1861465791) is active in the NPPES registry as of the last update on 2009-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.