DR. STEPHEN E HALVORSON MD
NPI 1215045802
Family Medicine in Butte, MT
About Dr. Stephen E Halvorson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN E HALVORSON MD (NPI 1215045802) is an individual family medicine provider in Butte, Montana, licensed in Montana (10892) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Big Sky Medical Center, and is a graduate of University Of New Mexico School Of Medicine (2002).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Stephen E Halvorson 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 Reassignment
Medicare enrollment records show Stephen Halvorson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Big Sky, MT 59716
- Reassigned Medicare billing, Montana enrollment
- Also billed through NPI 1740659952 (Montana)
- 49 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Big Sky Medical Center
Critical Access Hospitals · Big Sky, MTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59701 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.
BUTTE, MT 59701
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 Stephen Halvorson's NPI number?
The NPI number for Stephen Halvorson is 1215045802. It was assigned to this individual provider in the NPPES registry on August 25, 2006.
Where is Stephen Halvorson located?
Stephen Halvorson practices at 400 S Clark St, Butte, MT 59701. The listed phone number is (406) 723-2500.
What is Stephen Halvorson's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Stephen Halvorson enrolled in Medicare?
Yes. Stephen Halvorson 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 Stephen Halvorson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Halvorson reassigns Medicare benefits to Bozeman Health Big Sky Medical Center, LLC (Big Sky, 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 Stephen Halvorson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephen Halvorson accept?
Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Stephen Halvorson 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 Stephen Halvorson affiliated with any hospitals?
According to CMS data, Stephen Halvorson is affiliated with Big Sky Medical Center.
When was this NPI record last updated?
The NPPES record for Stephen Halvorson was last updated on April 20, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Dr. Stephen E Halvorson, MD · NPI 1215045802
Family Medicine physician in Butte, Montana. Individual provider, active in the CMS NPPES registry since August 25, 2006.
## Identity
- **NPI:** 1215045802 (Entity type: Individual)
- **Enumerated:** August 25, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 10892 (Montana)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 S CLARK ST, Butte, MT 59701-2328
- **Phone:** (406) 723-2500
## 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:** Bozeman Health Big Sky Medical Center, LLC (NPI 1588141048, Big Sky, MT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of New Mexico School Of Medicine, class of 2002
## Record status
- **NPPES last updated:** April 20, 2009
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Source: [NPI Profile](https://npiprofile.com/npi/1215045802) · Data from the CMS NPPES public registry.