Claire Olejnik
NPI 1558994004 · Physician Assistant · Milwaukee, WI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claire Olejnik is a Physician Assistant provider in Milwaukee, WI (NPI 1558994004).
Provider details
- NPI number
- 1558994004
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 5102 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
50 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 50 | $60 |
Typical Medicare-allowed amounts for these services range $60–$60 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (2)
- W150n5307 Badger DrMenomonee Falls, WI 53051-6774Phone: (414) 233-1687
- 9200 W Wisconsin AveMilwaukee, WI 53226-3522Phone: (414) 805-6400Fax: (414) 955-0213
Registry dates
- Enumerated
- 2020-02-12
- Last updated
- 2026-03-12
- Certified
- 2026-03-12
Frequently asked questions
- What is Claire Olejnik's NPI number?
- Claire Olejnik's National Provider Identifier (NPI) is 1558994004, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claire Olejnik's specialty?
- Claire Olejnik is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Claire Olejnik located?
- Claire Olejnik's practice location on file with NPPES is 2901 W Kinnickinnic River Pkwy, Milwaukee, WI 53215-3677.
- What is Claire Olejnik's phone number?
- The practice phone number listed in the NPPES registry for Claire Olejnik is (414) 649-3370.
- Does Claire Olejnik accept Medicare?
- Claire Olejnik is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Claire Olejnik's NPI active?
- Yes — Claire Olejnik's NPI (1558994004) is active in the NPPES registry as of the last update on 2026-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.