DR. CORNELIA M RIEDL M.D.
NPI 1407830623
Anesthesiology in Milwaukee, WI
About Dr. Cornelia M Riedl M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CORNELIA M RIEDL M.D. (NPI 1407830623) is an individual anesthesiology provider in Milwaukee, Wisconsin, licensed in Wisconsin (35791-020) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS, is affiliated with Marshfield Medical Center, and maintains a secondary practice location in Marshfield.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Cornelia M Riedl M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Cornelia Riedl reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Columbia St Marys Hospital Milwaukee Inc
- 856 clinicians in this Medicare group
Beaver Dam, WI 53916
- Reassigned Medicare billing, Wisconsin enrollment
- 606 clinicians in this Medicare group
Plover, WI 54467
- Reassigned Medicare billing, Wisconsin enrollment
- 2,476 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Marshfield Medical Center
Acute Care Hospitals · Marshfield, WIOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Cornelia Riedl's NPI number?
The NPI number for Cornelia Riedl is 1407830623. It was assigned to this individual provider in the NPPES registry on December 1, 2005.
Where is Cornelia Riedl located?
Cornelia Riedl practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. The listed phone number is (414) 259-3000.
What is Cornelia Riedl's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Cornelia Riedl enrolled in Medicare?
Yes. Cornelia Riedl is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Cornelia Riedl's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cornelia Riedl reassigns Medicare benefits to 4 organizations: Columbia St. Mary's Hospital Milwaukee Inc (Milwaukee, WI), Agnesian Healthcare (Beaver Dam, WI), Mchs Hospitals, Inc. (Plover, WI) and Marshfield Clinic Inc (Marshfield, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Cornelia Riedl's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Cornelia Riedl accept?
Health plans from Sanford Health Plan list Cornelia Riedl as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Cornelia Riedl affiliated with any hospitals?
According to CMS data, Cornelia Riedl is affiliated with Marshfield Medical Center.
When was this NPI record last updated?
The NPPES record for Cornelia Riedl was last updated on February 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Cornelia M Riedl, M.D. · NPI 1407830623
Anesthesiology physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since December 1, 2005.
## Identity
- **NPI:** 1407830623 (Entity type: Individual)
- **Enumerated:** December 1, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 35791-020 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 9200 W WISCONSIN AVE, Milwaukee, WI 53226-3522
- **Phone:** (414) 259-3000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Columbia St. Mary's Hospital Milwaukee Inc (NPI 1225071491, Milwaukee, WI); Agnesian Healthcare (NPI 1700817657, Beaver Dam, WI); Mchs Hospitals, Inc. (NPI 1386249894, Plover, WI); Marshfield Clinic Inc (NPI 1952347981, Marshfield, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Wisconsin School Of Medicine, class of 1993
## Record status
- **NPPES last updated:** February 2, 2026
- **Other identifiers:** Medicaid 32329700 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1407830623) · Data from the CMS NPPES public registry.