KIMBERLY S MERTENS CRNA
NPI 1003809104
Nurse Anesthetist, Certified Registered in Eau Claire, WI
About Kimberly S Mertens Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KIMBERLY S MERTENS CRNA (NPI 1003809104) is an individual nurse anesthetist, certified registered in Eau Claire, Wisconsin, licensed in Wisconsin (115803) and active in the NPI registry since August 2005. She is enrolled in Medicare PECOS, is affiliated with Oakleaf Surgical Hospital, and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Kimberly S Mertens Crna 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 Reassignment
Medicare enrollment records show Kimberly Mertens reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Altoona, WI 54720
- Reassigned Medicare billing, Wisconsin enrollment
- 32 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 2
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.
Oakleaf Surgical Hospital
Acute Care Hospitals · Altoona, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54703 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Kimberly Mertens's NPI number?
The NPI number for Kimberly Mertens is 1003809104. It was assigned to this individual provider in the NPPES registry on August 24, 2005.
Where is Kimberly Mertens located?
Kimberly Mertens practices at 1221 Whipple St, Eau Claire, WI 54703. The listed phone number is (715) 838-3311.
What is Kimberly Mertens's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Kimberly Mertens enrolled in Medicare?
Yes. Kimberly Mertens 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 organization bills Medicare for Kimberly Mertens's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kimberly Mertens reassigns Medicare benefits to Chippewa Valley Anesthesia Associates, S.C. (Altoona, WI). The 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 Kimberly Mertens's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Kimberly Mertens affiliated with any hospitals?
According to CMS data, Kimberly Mertens is affiliated with Oakleaf Surgical Hospital.
When was this NPI record last updated?
The NPPES record for Kimberly Mertens was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Kimberly S Mertens, CRNA · NPI 1003809104
Nurse Anesthetist, Certified Registered physician in Eau Claire, Wisconsin. Individual provider, active in the CMS NPPES registry since August 24, 2005.
## Identity
- **NPI:** 1003809104 (Entity type: Individual)
- **Enumerated:** August 24, 2005
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 115803 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1221 WHIPPLE ST, Eau Claire, WI 54703-5270
- **Phone:** (715) 838-3311
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** Chippewa Valley Anesthesia Associates, S.C. (NPI 1336751023, Altoona, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid 44337300 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1003809104) · Data from the CMS NPPES public registry.