NPPES file of Aug 9, 2026

Carol Faye Derby, L.A.C.

Addiction (Substance Use Disorder) Counselor · Helena, MT

Carol Faye Derby, L.A.C. is an addiction (substance use disorder) counselor with a practice address in Helena, Montana, and NPI 1902038201, issued on Aug 20, 2009. Check the license (Montana 1105, as entered in NPPES) with the Montana board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902038201
Name
Carol Faye Derby
Credential
L.A.C.
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License number
1105 MT
Self-reported in NPPES; status is on the state search
Practice location
111 N Last Chance Gulch, Helena, MT 59601
Phone
(406) 447-3265
Enumerated
Aug 20, 2009
Record last updated
Aug 20, 2009 (not updated in 17 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest addiction (substance use disorder) counselor records → All 691 in Montana → Look up another NPI →

Also registered at 111 N Last Chance Gulch

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Suzanne Bennett, L.A.C.Addiction (Substance Use Disorder) Counselor1699907733
  2. Kelly Downing, LCSWClinical Social Worker1205132511
  3. Kelli Kerpa, BS, LACAddiction (Substance Use Disorder) Counselor1386809358
  4. Judy Kolar, LACAddiction (Substance Use Disorder) Counselor1568798767
  5. Alison Schulte, MED LCPCProfessional Counselor1578646444

Verify Carol Faye Derby in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Montana board licenses this profession
    Search for license 1105    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Montana license search

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Carol Faye Derby among 691 addiction (substance use disorder) counselor records in Montana

Carol Faye Derby, L.A.C. is one of 691 addiction (substance use disorder) counselor records with a practice address in Montana. 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2009, is newer than 17% of them.

  • NPI issued2009 · 17% of these records are older, 80% newer
  • In a Medicare fileNo · 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · 3% of these records are
  • Record last updated2009 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YA0400X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

58 addiction (substance use disorder) counselor records list a practice address in Helena

They are 58 of the 1,591 NPPES records with a practice address in Helena, and 691 addiction (substance use disorder) counselor records in Montana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 691 in Montana → Every provider in Helena → Addiction (Substance Use Disorder) Counselor nationwide →

The 8 addiction (substance use disorder) counselor records with the nearest ZIP codes

  1. Elizabeth Allen, LACHelena, MT 596011427190644
  2. Edward Barrett, LACHelena, MT 596011255513099
  3. Suzanne Bennett, L.A.C.Helena, MT 596011699907733
  4. Scott Boyles, LACHelena, MT 596011407993223
  5. Carol ChisholmHelena, MT 596011437212008
  6. Cathryn English-Straub, LCSW, LACHelena, MT 596011154406379
  7. Carroll Jenkins, LCSW, LAC, SAPHelena, MT 596011427110303
  8. Kelli Kerpa, BS, LACHelena, MT 596011386809358

Common questions

What is Carol Faye Derby, L.A.C.'s NPI number?

Carol Faye Derby, L.A.C.'s National Provider Identifier (NPI) is 1902038201, issued on Aug 20, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Carol Faye Derby, L.A.C. located?

The NPPES record lists a practice address at 111 N Last Chance Gulch, Helena, MT, 59601. Phone: (406) 447-3265. Providers update this record themselves, so call before visiting.

How can I verify Carol Faye Derby, L.A.C.'s license?

NPPES lists Montana license number 1105, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.