Derek Hook, MSW, LCSW
Clinical Social Worker · Great Falls, MT
Derek Hook, MSW, LCSW is a clinical social worker with a practice address in Great Falls, Montana, and NPI 1700282571, issued on Nov 6, 2014. Check the license (Montana 38241, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Derek Hook
- Credential
- MSW, LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License numbers
- 38241 MT
SD3348 SD
Self-reported in NPPES; status is on the state search - Practice location
- 915 1St Ave S, Great Falls, MT 59401
- Phone
- (406) 791-9613
- Enumerated
- Nov 6, 2014
- Record last updated
- Jun 25, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (406) 761-5440
- Medicare enrollment
- Enrolled (PECOS I20230925003625); accepts Medicare assignment
- Medical or professional school
- Sanford School Of Medicine Of University Of South Dakota, 2014
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 1,589 in Montana → Look up another NPI →
Also registered at 915 1St Ave S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Laurel Andrechak, FNP, PSYCH NPPsychiatric/Mental Health Nurse Practitioner1992907372
- Judith Baird, LCSWMental Health Counselor1225480205
- Danielle Bresnahan, LCSWClinical Social Worker1013643949
- Vonnie Brown, LCSWClinical Social Worker1083783575
- James Day, MDPsychiatry Physician1558371948
- Rick Fossen, PHARM.D.Pharmacist1659880029
Verify Derek Hook in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 38241Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Anchorage Community Mental Health Services IncAnchorage, AK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derek Hook among 1,589 clinical social worker records in Montana
Derek Hook, MSW, LCSW is one of 1,589 clinical social worker records with a practice address in Montana. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 33% of them.
- NPI issued2014 · 33% of these records are older, 63% newer
- In a Medicare fileYes · 11% of these records are
- In the CMS Doctors and Clinicians fileYes · 32% of these records are
- Graduated2014 · median 2013 among the 511 with a school on file
- Record last updated2019 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
74 clinical social worker records list a practice address in Great Falls
They are 74 of the 1,798 NPPES records with a practice address in Great Falls, and 1,589 clinical social worker records in Montana.
All 1,589 in Montana → Every provider in Great Falls → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Shawn Abbott, LCSWGreat Falls, MT 594011316900368
- Joseph Boyle, LCSWGreat Falls, MT 594011588730485
- Janet Breeden, LCSWGreat Falls, MT 594011073658464
- Vonnie Brown, LCSWGreat Falls, MT 594011083783575
- Aleece Gipe, LCSW, LACGreat Falls, MT 594011780691691
- Trent Lear, LCSWGreat Falls, MT 594011689751000
- Lisa Lysne, LCSWGreat Falls, MT 594011992807507
- Stephen Maki, LCSWGreat Falls, MT 594011942320320
Common questions
What is Derek Hook, MSW, LCSW's NPI number?
Derek Hook, MSW, LCSW's National Provider Identifier (NPI) is 1700282571, issued on Nov 6, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Derek Hook, MSW, LCSW located?
The NPPES record lists a practice address at 915 1St Ave S, Great Falls, MT, 59401. Phone: (406) 791-9613. Providers update this record themselves, so call before visiting.
How can I verify Derek Hook, MSW, LCSW's license?
NPPES lists Montana license number 38241, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.