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Madelyn Sieraski, M.D.
NPI 1902879737 · Family Medicine Physician · Waukesha, WI
Madelyn Sieraski, M.D. is a Family Medicine Physician provider in Waukesha, WI (NPI 1902879737).
Provider details
- NPI number
- 1902879737
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 32517 (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-South
2130 Big Bend Road
Waukesha, WI 53189
Phone: (262) 928-7555
Fax: (262) 513-7575
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 Madelyn Sieraski's NPI number?
- Madelyn Sieraski's National Provider Identifier (NPI) is 1902879737, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Madelyn Sieraski's specialty?
- Madelyn Sieraski is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Madelyn Sieraski located?
- Madelyn Sieraski's practice location on file with NPPES is Prohealth Care Medical Centers-South, Waukesha, WI 53189.
- What is Madelyn Sieraski's phone number?
- The practice phone number listed in the NPPES registry for Madelyn Sieraski is (262) 928-7555.
- Is Madelyn Sieraski's NPI active?
- Yes — Madelyn Sieraski's NPI (1902879737) 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.