DR. JOHN JOSEPH SIEFKE PH.D.
NPI 1548901853
Psychologist - Clinical in Bozeman, MT
About Dr. John Joseph Siefke Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN JOSEPH SIEFKE PH.D. (NPI 1548901853) is an individual clinical provider in Bozeman, Montana, licensed in Montana (PSY-PSY-LIC-2508) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS and maintains a secondary practice location in Belgrade.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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 (PECOS)
Dr. John Joseph Siefke Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Siefke reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Bozeman, MT 59718
- Reassigned Medicare billing, Montana enrollment
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59718 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.
BOZEMAN, MT 59718
BOZEMAN, MT 59718
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 John Siefke's NPI number?
The NPI number for John Siefke is 1548901853. It was assigned to this individual provider in the NPPES registry on April 2, 2022.
Where is John Siefke located?
John Siefke practices at 1902 W Dickerson St Ste 208, Bozeman, MT 59718. The listed phone number is (406) 295-6899.
What is John Siefke's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is John Siefke enrolled in Medicare?
Yes. John Siefke is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Siefke's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Siefke reassigns Medicare benefits to Dr. John J Siefke Psychological Services PLLC (Bozeman, 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 John Siefke's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Siefke accept?
Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP and PacificSource Health Plans list John Siefke 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 John Siefke was last updated on May 31, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. John Joseph Siefke, PH.D. · NPI 1548901853
Clinical provider in Bozeman, Montana. Individual provider, active in the CMS NPPES registry since April 2, 2022.
## Identity
- **NPI:** 1548901853 (Entity type: Individual)
- **Enumerated:** April 2, 2022
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **State license:** PSY-PSY-LIC-2508 (Montana)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1902 W DICKERSON ST STE 208, Bozeman, MT 59718-6852
- **Phone:** (406) 295-6899
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Dr. John J Siefke Psychological Services PLLC (NPI 1902620115, Bozeman, MT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 31, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1548901853) · Data from the CMS NPPES public registry.