Madison Area Renal Specialists, Sc
NPI 1104834894 · Nephrology Physician · Fitchburg, WI
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Madison Area Renal Specialists, Sc is a Nephrology Physician organization in Fitchburg, WI (NPI 1104834894).
Provider details
- NPI number
- 1104834894
- Entity type
- Organization
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Christoph Eggert, MD(608) 229-7221
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
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
Mailing address
Registry dates
- Enumerated
- 2006-08-04
- Last updated
- 2021-04-09
- Certified
- 2021-04-09
Frequently asked questions
- What is Madison Area Renal Specialists, Sc's NPI number?
- Madison Area Renal Specialists, Sc's National Provider Identifier (NPI) is 1104834894, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Madison Area Renal Specialists, Sc?
- Madison Area Renal Specialists, Sc is classified in the NPPES registry as Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Madison Area Renal Specialists, Sc located?
- Madison Area Renal Specialists, Sc's practice location on file with NPPES is 2840 Index Rd, Fitchburg, WI 53713-3117.
- What is Madison Area Renal Specialists, Sc's phone number?
- The practice phone number listed in the NPPES registry for Madison Area Renal Specialists, Sc is (608) 229-7221.
- Does Madison Area Renal Specialists, Sc accept Medicare?
- Madison Area Renal Specialists, Sc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Madison Area Renal Specialists, Sc?
- The authorized official listed on Madison Area Renal Specialists, Sc's NPPES record is Christoph Eggert, MD. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Madison Area Renal Specialists, Sc's NPI active?
- Yes — Madison Area Renal Specialists, Sc's NPI (1104834894) is active in the NPPES registry as of the last update on 2021-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.