Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LASS MF DUDLEY LCPC
NPI 1366566358
Counselor - Professional in Helena, MT

Q: What is Lass Dudley's NPI number?

The NPI number for Lass Dudley is 1366566358. It was assigned to this individual provider in the NPPES registry on March 17, 2007. The provider is also known as Martha Fairchild Dudley Lcpc.

Q: What is Lass Dudley's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Q: When was this NPI record last updated?

The NPPES record for Lass Dudley was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.

Active since March 17, 2007

3112 HOLMBERG DR, HELENA, MT 59602(406) 539-0300 Get Directions Write a Review

NPPES record last updated: August 21, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Lass Mf Dudley Lcpc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LASS MF DUDLEY LCPC (NPI 1366566358) is an individual professional provider in Helena, Montana, licensed in Montana (1037) and active in the NPI registry since March 2007.

NPPES Registry Identity

NPI1366566358

Entity TypeIndividualFemale

Primary Taxonomy101YP2500X

Provider Legal NameLASS MF DUDLEYCredential: LCPC

Location Address3112 HOLMBERG DRHelena, MT 59602-8511

Mailing Address3112 Holmberg DrHelena, MT 59602-8511 · (406) 539-0300

Phone(406) 539-0300

Sole ProprietorYes

Enumeration DateMarch 17, 2007

Last NPPES UpdateAugust 21, 2026

NPPES CertifiedAugust 21, 2026

✔ NPI 1366566358 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers

Taxonomy Code101YP2500X

License✔ Licensed in MT · 1037

3112 HOLMBERG DR, Helena, MT 59602

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Other Names 1

Former Name (1)Martha Fairchild Dudley Lcpc

Other Identifiers 1

Medicaid0255102MT

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans.Insurance ›

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 Lass Dudley's NPI number?

The NPI number for Lass Dudley is 1366566358. It was assigned to this individual provider in the NPPES registry on March 17, 2007. The provider is also known as Martha Fairchild Dudley Lcpc.

Where is Lass Dudley located?

Lass Dudley practices at 3112 Holmberg Dr, Helena, MT 59602. The listed phone number is (406) 539-0300.

What is Lass Dudley's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

What insurance does Lass Dudley accept?

Health plans from PacificSource Health Plans list Lass Dudley 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 Lass Dudley was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.