Karen Ruwaldt, CNM
NPI 1821507872 · Advanced Practice Midwife · Chicago, IL
Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Ruwaldt, CNM is a Advanced Practice Midwife provider in Chicago, IL (NPI 1821507872).
Provider details
- NPI number
- 1821507872
- Entity type
- Individual
- Primary specialty
- Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNM
- Sex
- Female
- Sole proprietor
- No
- License
- 209016325 (IL)
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 tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$38 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-09-21
- Last updated
- 2022-04-20
- Certified
- 2022-04-20
Frequently asked questions
- What is Karen Ruwaldt's NPI number?
- Karen Ruwaldt's National Provider Identifier (NPI) is 1821507872, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Ruwaldt's specialty?
- Karen Ruwaldt is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Ruwaldt located?
- Karen Ruwaldt's practice location on file with NPPES is 2355 S Western Ave, Chicago, IL 60608-3837.
- What is Karen Ruwaldt's phone number?
- The practice phone number listed in the NPPES registry for Karen Ruwaldt is (773) 254-1400.
- Does Karen Ruwaldt accept Medicare?
- Karen Ruwaldt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Ruwaldt's NPI active?
- Yes — Karen Ruwaldt's NPI (1821507872) is active in the NPPES registry as of the last update on 2022-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.