Kathryn Ritter, DO
NPI 1629717558 · Neonatal-Perinatal Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathryn Ritter, DO is a Neonatal-Perinatal Medicine Physician provider in Milwaukee, WI (NPI 1629717558).
Provider details
- NPI number
- 1629717558
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- R-12575 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 8701 Watertown Plank RdMilwaukee, WI 53226-3548Phone: (414) 337-5499
Registry dates
- Enumerated
- 2022-05-31
- Last updated
- 2025-11-04
- Certified
- 2025-11-04
Frequently asked questions
- What is Kathryn Ritter's NPI number?
- Kathryn Ritter's National Provider Identifier (NPI) is 1629717558, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathryn Ritter's specialty?
- Kathryn Ritter is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kathryn Ritter located?
- Kathryn Ritter's practice location on file with NPPES is 9200 W Wisconsin Ave, Milwaukee, WI 53226-3522.
- What is Kathryn Ritter's phone number?
- The practice phone number listed in the NPPES registry for Kathryn Ritter is (414) 805-6600.
- Does Kathryn Ritter accept Medicare?
- Kathryn Ritter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathryn Ritter's NPI active?
- Yes — Kathryn Ritter's NPI (1629717558) is active in the NPPES registry as of the last update on 2025-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.