ELIZABETH ASHLEY DIFFELY FNP-C
NPI 1245914563
Nurse Practitioner - Family in Garrison, ND
About Elizabeth Ashley Diffely Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELIZABETH ASHLEY DIFFELY FNP-C (NPI 1245914563) is an individual family provider in Garrison, North Dakota, licensed in North Dakota (R36507) and active in the NPI registry since June 2023. She is enrolled in Medicare PECOS, is affiliated with Chi St Alexius Health, and is a graduate of University Of North Dakota School Of Medicine (2023).
NPPES Registry Identity
Specialties & Licenses 2
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
Elizabeth Ashley Diffely 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 Reassignments
2Medicare enrollment records show Elizabeth Diffely reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Garrison, ND 58540
- Reassigned Medicare billing, North Dakota enrollment
- Also billed through NPI 1952381873 (North Dakota)
- 12 clinicians in this Medicare group
Turtle Lake, ND 58575
- Reassigned Medicare billing, North Dakota enrollment
- 616 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Chi St Alexius Health
Acute Care Hospitals · Bismarck, NDTrinity Hospitals
Acute Care Hospitals · Minot, NDSanford Medical Center Bismarck
Acute Care Hospitals · Bismarck, NDGarrison Memorial Hospital
Critical Access Hospitals · Garrison, NDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 58540 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 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GARRISON, ND 58540
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 Elizabeth Diffely's NPI number?
The NPI number for Elizabeth Diffely is 1245914563. It was assigned to this individual provider in the NPPES registry on June 15, 2023.
Where is Elizabeth Diffely located?
Elizabeth Diffely practices at 437 3rd Ave SE, Garrison, ND 58540. The listed phone number is (701) 463-6551.
What is Elizabeth Diffely's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Elizabeth Diffely enrolled in Medicare?
Yes. Elizabeth Diffely 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 Elizabeth Diffely's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Diffely reassigns Medicare benefits to 2 organizations: Garrison Memorial Hospital (Garrison, ND) and St. Alexius Medical Center (Turtle Lake, ND). 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 Elizabeth Diffely's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Elizabeth Diffely accept?
Health plans from Blue Cross Blue Shield of North Dakota and Sanford Health Plan list Elizabeth Diffely 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 Elizabeth Diffely affiliated with any hospitals?
According to CMS data, Elizabeth Diffely is affiliated with Chi St Alexius Health, Trinity Hospitals, Sanford Medical Center Bismarck and Garrison Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Elizabeth Diffely was last updated on August 23, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Elizabeth Ashley Diffely, FNP-C · NPI 1245914563
Family physician in Garrison, North Dakota. Individual provider, active in the CMS NPPES registry since June 15, 2023.
## Identity
- **NPI:** 1245914563 (Entity type: Individual)
- **Enumerated:** June 15, 2023
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** R36507 (North Dakota)
- **Sole proprietor:** No
## Practice location
- **Address:** 437 3RD AVE SE, Garrison, ND 58540-7235
- **Phone:** (701) 463-6551
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Garrison Memorial Hospital (NPI 1982674560, Garrison, ND); St. Alexius Medical Center (NPI 1013961820, Turtle Lake, ND) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of North Dakota School Of Medicine, class of 2023
## Record status
- **NPPES last updated:** August 23, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1245914563) · Data from the CMS NPPES public registry.