Doctor profile · Federal record

Dr. Stephene Hertwig, RN, MSN, ACNPC-Ag

Critical Care Medicine Nurse Practitioner (CMS: Nurse Practitioner) · Acute Care Nurse Practitioner · Critical Care Medicine Nurse Practitioner · Kalispell, MT

  • NPI 1306379607
  • Accepts Medicare
  • 10 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
350 Heritage Way Ste 2100
Kalispell, MT 599013167
(406) 257-8992
fax (406) 257-8996
Mailing address
180 Meadow Vista Loop Unit D
Kalispell, MT 599012936

Credentials & registration

NPPES · NUCC
NPI registered
April 2017 — 9 yrs on file
Profile last updated
February 19, 2024
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
363LC0200X — NUCC code
State licenses (2)
Virginia #0024174096 · Montana #NUR-APRN-LIC-184834

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1306379607. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
31
Distinct HCPCS
1
Medicare allowed
$5,639
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 31 21 $182

In context: peer comparison

Among 1 peers in Kalispell Critical Care Medicine Nurse Practitioner, average services per provider: 31. This provider delivers 1.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephene Hertwig's medical specialty?
Dr. Stephene Hertwig practices Critical Care Medicine Nurse Practitioner in Kalispell, MT.
Where does Dr. Stephene Hertwig practice?
Dr. Stephene Hertwig practices at 350 Heritage Way Ste 2100, Kalispell, MT 599013167. Office phone: 4062578992.
What is Dr. Stephene Hertwig's NPI?
Dr. Stephene Hertwig's National Provider Identifier (NPI) is 1306379607, issued by NPPES.
Does Dr. Stephene Hertwig accept Medicare assignment?
Yes. Dr. Stephene Hertwig accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephene Hertwig commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.