STEPHENE AIZCORBE HERTWIG RN, MSN, ACNPC-AG
NPI 1306379607
Nurse Practitioner - Critical Care Medicine in Kalispell, MT
About Stephene Aizcorbe Hertwig Rn, Msn, Acnpc-ag NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHENE AIZCORBE HERTWIG RN, MSN, ACNPC-AG (NPI 1306379607) is an individual critical care medicine provider in Kalispell, Montana, licensed in Virginia (0024174096) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS, is affiliated with Logan Health Medical Center, and is a graduate of Other (2016).
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
Stephene Aizcorbe Hertwig Rn, Msn, Acnpc-ag 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 Stephene Hertwig reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Kalispell, MT 59901
- Reassigned Medicare billing, Montana enrollment
- 483 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Logan Health Medical Center
Acute Care Hospitals · Kalispell, MTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59901 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.
KALISPELL, MT 59901
KALISPELL, MT 59901
KALISPELL, MT 59901
KALISPELL, MT 59901
KALISPELL, MT 59901
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 Stephene Hertwig's NPI number?
The NPI number for Stephene Hertwig is 1306379607. It was assigned to this individual provider in the NPPES registry on April 4, 2017.
Where is Stephene Hertwig located?
Stephene Hertwig practices at 350 Heritage Way Ste 2100, Kalispell, MT 59901. The listed phone number is (406) 257-8992.
What is Stephene Hertwig's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Critical Care Medicine, with taxonomy code 363LC0200X.
Is Stephene Hertwig enrolled in Medicare?
Yes. Stephene Hertwig 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 Stephene Hertwig's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephene Hertwig reassigns Medicare benefits to Kalispell Regional Medical Center, Inc (Kalispell, MT). 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 Stephene Hertwig's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephene Hertwig accept?
Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Stephene Hertwig 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 Stephene Hertwig affiliated with any hospitals?
According to CMS data, Stephene Hertwig is affiliated with Logan Health Medical Center.
When was this NPI record last updated?
The NPPES record for Stephene Hertwig was last updated on February 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Stephene Aizcorbe Hertwig, RN, MSN, ACNPC-AG · NPI 1306379607
Critical Care Medicine physician in Kalispell, Montana. Individual provider, active in the CMS NPPES registry since April 4, 2017.
## Identity
- **NPI:** 1306379607 (Entity type: Individual)
- **Enumerated:** April 4, 2017
- **Primary specialty:** Nurse Practitioner - Critical Care Medicine · taxonomy 363LC0200X
- **State license:** 0024174096 (Virginia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 350 HERITAGE WAY STE 2100, Kalispell, MT 59901-3167
- **Phone:** (406) 257-8992 · **Fax:** (406) 257-8996
## 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:** Kalispell Regional Medical Center, Inc (NPI 1770183741, Kalispell, MT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** February 19, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1306379607) · Data from the CMS NPPES public registry.