DEREK HOOK MSW, LCSW
NPI 1700282571
Social Worker - Clinical in Great Falls, MT
About Derek Hook Msw, Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DEREK HOOK MSW, LCSW (NPI 1700282571) is an individual clinical provider in Great Falls, Montana, licensed in Montana (38241) and active in the NPI registry since November 2014. He is enrolled in Medicare PECOS and is a graduate of Sanford School Of Medicine Of University Of South Dakota (2014).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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 and accepts Medicare assignment
Derek Hook Msw, Lcsw 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 Derek Hook reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Wasilla, AK 99654
- Reassigned Medicare billing, Alaska enrollment
- 43 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59401 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.
GREAT FALLS, MT 59401
GREAT FALLS, MT 59401
GREAT FALLS, MT 59401
GREAT FALLS, MT 59401
GREAT FALLS, MT 59401
GREAT FALLS, MT 59401
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 Derek Hook's NPI number?
The NPI number for Derek Hook is 1700282571. It was assigned to this individual provider in the NPPES registry on November 6, 2014.
Where is Derek Hook located?
Derek Hook practices at 915 1st Ave S, Great Falls, MT 59401. The listed phone number is (406) 791-9613.
What is Derek Hook's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Derek Hook enrolled in Medicare?
Yes. Derek Hook 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 Derek Hook's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Derek Hook reassigns Medicare benefits to Anchorage Community Mental Health Services Inc. (Wasilla, AK). 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 Derek Hook's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Derek Hook accept?
Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Derek Hook 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 Derek Hook was last updated on June 25, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Derek Hook, MSW, LCSW · NPI 1700282571
Clinical provider in Great Falls, Montana. Individual provider, active in the CMS NPPES registry since November 6, 2014.
## Identity
- **NPI:** 1700282571 (Entity type: Individual)
- **Enumerated:** November 6, 2014
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 38241 (Montana)
- **Sole proprietor:** No
## Practice location
- **Address:** 915 1ST AVE S, Great Falls, MT 59401-3705
- **Phone:** (406) 791-9613 · **Fax:** (406) 761-5440
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Anchorage Community Mental Health Services Inc. (NPI 1518673995, Wasilla, AK), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Sanford School Of Medicine Of University Of South Dakota, class of 2014
## Record status
- **NPPES last updated:** June 25, 2019
- **Other identifiers:** Other LCSW3348 (SD)
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Source: [NPI Profile](https://npiprofile.com/npi/1700282571) · Data from the CMS NPPES public registry.