IndividualActive
Stephen Zimmerman, MD
NPI 1912915679 · Nephrology Physician · Waupun, WI
Stephen Zimmerman, MD is a Nephrology Physician provider in Waupun, WI (NPI 1912915679).
Provider details
- NPI number
- 1912915679
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 16092 (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
19 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
608 W Brown St
Waupun, WI 53963-1702
Phone: (920) 324-6531
Street-level locationGet directions
Mailing address
420 E Division St
Fond Du Lac, WI 54935-4560
Registry dates
- Enumerated
- 2006-08-04
- Last updated
- 2016-03-22
Frequently asked questions
- What is Stephen Zimmerman's NPI number?
- Stephen Zimmerman's National Provider Identifier (NPI) is 1912915679, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Zimmerman's specialty?
- Stephen Zimmerman is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Zimmerman located?
- Stephen Zimmerman's practice location on file with NPPES is 608 W Brown St, Waupun, WI 53963-1702.
- What is Stephen Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for Stephen Zimmerman is (920) 324-6531.
- Is Stephen Zimmerman's NPI active?
- Yes — Stephen Zimmerman's NPI (1912915679) is active in the NPPES registry as of the last update on 2016-03-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.