NATALIE K WALTER MD
NPI 1255901088
Emergency Medicine in Indianapolis, IN
About Natalie K Walter Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATALIE K WALTER MD (NPI 1255901088) is an individual emergency medicine provider in Indianapolis, Indiana, licensed in Indiana (01092612A) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS, is affiliated with Indiana University Health, and maintains a secondary practice location in Columbia.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Natalie K Walter Md 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
3Medicare enrollment records show Natalie Walter reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 1,781 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 5,212 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 318 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Indiana University Health
Acute Care Hospitals · Indianapolis, INIu Health West Hospital
Acute Care Hospitals · Avon, INIndiana University Health North Hospital
Acute Care Hospitals · Carmel, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46202 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.
INDIANAPOLIS, IN 46202
INDIANAPOLIS, IN 46202
INDIANAPOLIS, IN 46202
INDIANAPOLIS, IN 46202
INDIANAPOLIS, IN 46202
INDIANAPOLIS, IN 46202
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 Natalie Walter's NPI number?
The NPI number for Natalie Walter is 1255901088. It was assigned to this individual provider in the NPPES registry on June 24, 2021.
Where is Natalie Walter located?
Natalie Walter practices at 705 Riley Hospital Dr, Indianapolis, IN 46202. The listed phone number is (317) 944-5000.
What is Natalie Walter's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Natalie Walter enrolled in Medicare?
Yes. Natalie 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 Natalie Walter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Natalie Walter reassigns Medicare benefits to 3 organizations: Indiana University Health Care Associates, Inc (Indianapolis, IN), Iu Health Medical Group, LLC (Indianapolis, IN) and Indiana Clinic Critical Care LLC (Indianapolis, IN). 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 Natalie Walter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Natalie Walter accept?
Health plans from CareSource and Cigna Healthcare list Natalie 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 Natalie Walter affiliated with any hospitals?
According to CMS data, Natalie Walter is affiliated with Indiana University Health, Iu Health West Hospital and Indiana University Health North Hospital.
When was this NPI record last updated?
The NPPES record for Natalie Walter was last updated on November 14, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.
# Natalie K Walter, MD · NPI 1255901088
Emergency Medicine physician in Indianapolis, Indiana. Individual provider, active in the CMS NPPES registry since June 24, 2021.
## Identity
- **NPI:** 1255901088 (Entity type: Individual)
- **Enumerated:** June 24, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 01092612A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 705 RILEY HOSPITAL DR, Indianapolis, IN 46202-5109
- **Phone:** (317) 944-5000 · **Fax:** (317) 963-5492
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Indiana University Health Care Associates, Inc (NPI 1902032832, Indianapolis, IN); Iu Health Medical Group, LLC (NPI 1326893777, Indianapolis, IN); Indiana Clinic Critical Care LLC (NPI 1417285230, Indianapolis, IN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** November 14, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1255901088) · Data from the CMS NPPES public registry.