CHRISTINA MARIE WALTER CRNA
NPI 1851823793
Nurse Anesthetist, Certified Registered in Iowa City, IA
About Christina Marie Walter Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTINA MARIE WALTER CRNA (NPI 1851823793) is an individual nurse anesthetist, certified registered in Iowa City, Iowa, licensed in Iowa (D155908) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS, is affiliated with Trinity - Bettendorf, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Christina Marie Walter 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 Reassignments
6Medicare enrollment records show Christina Walter reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Muscatine, IA 52761
- Reassigned Medicare billing, Iowa enrollment
- 113 clinicians in this Medicare group
Maquoketa, IA 52060
- Reassigned Medicare billing, Iowa enrollment
- Also billed through NPI 1912960758 (Iowa)
- 43 clinicians in this Medicare group
De Witt, IA 52742
- Reassigned Medicare billing, Iowa enrollment
- 34 clinicians in this Medicare group
Moline, IL 61265
- Reassigned Medicare billing, Iowa enrollment
- 35 clinicians in this Medicare group
Clinton, IA 52732
- Reassigned Medicare billing, Iowa enrollment
- 31 clinicians in this Medicare group
Des Moines, IA 50314
- Reassigned Medicare billing, Iowa enrollment
- 209 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 5
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Trinity - Bettendorf
Acute Care Hospitals · Bettendorf, IAJackson County Regional Health Center
Critical Access Hospitals · Maquoketa, IAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 52242 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.
IOWA CITY, IA 52242
IOWA CITY, IA 52242
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 Christina Walter's NPI number?
The NPI number for Christina Walter is 1851823793. It was assigned to this individual provider in the NPPES registry on March 30, 2017. The provider is also known as Christina Marie Niemann Crna.
Where is Christina Walter located?
Christina Walter practices at 200 Hawkins Dr, Iowa City, IA 52242. The listed phone number is (319) 356-2633.
What is Christina Walter's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Christina Walter enrolled in Medicare?
Yes. Christina Walter 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 Christina Walter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christina Walter reassigns Medicare benefits to 6 organizations: Unity Healthcare (Muscatine, IA), Jackson County Public Hospital (Maquoketa, IA), Genesis Health System (De Witt, IA), Apollo Anesthesia And Pain Management, PLLC (Moline, IL), Mercy Clinton Anesthesia Group LLC (Clinton, IA) and 1 more organization, listed in the Medicare section above. 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 Christina Walter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Christina Walter accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Oscar Health and 2 other insurers list Christina Walter 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 Christina Walter affiliated with any hospitals?
According to CMS data, Christina Walter is affiliated with Trinity - Bettendorf and Jackson County Regional Health Center.
When was this NPI record last updated?
The NPPES record for Christina Walter was last updated on June 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.
# Christina Marie Walter, CRNA · NPI 1851823793
Nurse Anesthetist, Certified Registered physician in Iowa City, Iowa. Individual provider, active in the CMS NPPES registry since March 30, 2017.
## Identity
- **NPI:** 1851823793 (Entity type: Individual)
- **Enumerated:** March 30, 2017
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** D155908 (Iowa)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 HAWKINS DR, Iowa City, IA 52242-1009
- **Phone:** (319) 356-2633 · **Fax:** (319) 356-2940
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Unity Healthcare (NPI 1952440455, Muscatine, IA); Jackson County Public Hospital (NPI 1689705949, Maquoketa, IA); Genesis Health System (NPI 1649368523, De Witt, IA); Apollo Anesthesia And Pain Management, PLLC (NPI 1265051817, Moline, IL); Mercy Clinton Anesthesia Group LLC (NPI 1184962862, Clinton, IA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** June 25, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1851823793) · Data from the CMS NPPES public registry.