ANN MARIE WALKER FNP-C
NPI 1740747435
Nurse Practitioner - Family in Westfield, IN
About Ann Marie Walker Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANN MARIE WALKER FNP-C (NPI 1740747435) is an individual family provider in Westfield, Indiana, licensed in Indiana (71008808A) and active in the NPI registry since February 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
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
Ann Marie Walker Fnp-c 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 Ann Walker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Noblesville, IN 46060
- Reassigned Medicare billing, Indiana enrollment
- 303 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46074 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WESTFIELD, IN 46074
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 Ann Walker's NPI number?
The NPI number for Ann Walker is 1740747435. It was assigned to this individual provider in the NPPES registry on February 28, 2019. The provider is also known as Annie Marie Walker Fnp-C.
Where is Ann Walker located?
Ann Walker practices at 17600 Shamrock Blvd Ste 500B, Westfield, IN 46074. The listed phone number is (317) 867-5263.
What is Ann Walker's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Ann Walker enrolled in Medicare?
Yes. Ann Walker 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 Ann Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ann Walker reassigns Medicare benefits to Riverview Hospital (Noblesville, IN). 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 Ann Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ann Walker accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 2 other insurers list Ann Walker 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.
When was this NPI record last updated?
The NPPES record for Ann Walker was last updated on February 28, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Ann Marie Walker, FNP-C · NPI 1740747435
Family physician in Westfield, Indiana. Individual provider, active in the CMS NPPES registry since February 28, 2019.
## Identity
- **NPI:** 1740747435 (Entity type: Individual)
- **Enumerated:** February 28, 2019
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 71008808A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 17600 SHAMROCK BLVD STE 500B, Westfield, IN 46074-7002
- **Phone:** (317) 867-5263 · **Fax:** (317) 867-2031
## 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:** Riverview Hospital (NPI 1225275928, Noblesville, IN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** February 28, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1740747435) · Data from the CMS NPPES public registry.