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MR. LAURENCE GEORGE LEFF CADC II
NPI 1538359807
Counselor - Addiction (Substance Use Disorder) in Saint Helens, OR

Active since August 01, 2007
185 N 4TH ST, SAINT HELENS, OR 97051(503) 366-4526 Get Directions Write a Review

NPPES record last updated: August 1, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mr. Laurence George Leff Cadc Ii NPPES

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

MR. LAURENCE GEORGE LEFF CADC II (NPI 1538359807) is an individual addiction (substance use disorder) provider in Saint Helens, Oregon and active in the NPI registry since August 2007.

NPPES Registry Identity

NPI1538359807
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameMR. LAURENCE GEORGE LEFFCredential: CADC II
Location Address185 N 4TH STSaint Helens, OR 97051-1535
Mailing Address185 N 4th StSaint Helens, OR 97051-1535 · (503) 397-5373
Phone(503) 366-4526
Sole ProprietorNo
Enumeration DateAugust 1, 2007
✔ NPI 1538359807 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
185 N 4TH ST, Saint Helens, OR 97051
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Other Names 1

Other Name (5)Mr. Larry George Leff Cadc Ii

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.

SANDRA ANNE PETERSEN-TETZ CADC I
Counselor
185 N 4TH ST
SAINT HELENS, OR 97051
Columbia County (503) 366-4540
BRIDGE TO PATHWAYS
Substance Abuse Rehabilitation Facility
185 N 4TH ST
SAINT HELENS, OR 97051
Columbia County (503) 366-4540
MRS. CHRISTENA MARIE OWENS M.A. QMHP CADCI
Counselor (Addiction (Substance Use Disorder))
185 N 4TH ST, ST. HELENS
SAINT HELENS, OR 97051
Columbia County (503) 366-4540
COLUMBIA COMMUNITY MENTAL HEALTH
Substance Abuse Rehabilitation Facility
185 N 4TH ST
SAINT HELENS, OR 97051
Columbia County (503) 397-5211
ANDREA CENTAURI PLUMER
Counselor (Addiction (Substance Use Disorder))
185 N 4TH ST
SAINT HELENS, OR 97051
Columbia County (503) 438-2180
LINDSEY REBECCA SELF RN
Case Manager/Care Coordinator
185 N 4TH ST
SAINT HELENS, OR 97051
Columbia County (503) 396-4271
MARNICA LEMOS CRM
Counselor (Addiction (Substance Use Disorder))
185 N 4TH ST
SAINT HELENS, OR 97051
Columbia County (503) 438-2180
SHANNON LAVONN BILLINGS
Counselor (Addiction (Substance Use Disorder))
185 N 4TH ST
SAINT HELENS, OR 97051
Columbia County (503) 366-4540

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 Laurence Leff's NPI number?

The NPI number for Laurence Leff is 1538359807. It was assigned to this individual provider in the NPPES registry on August 1, 2007. The provider is also known as Mr. Larry George Leff Cadc II.

Where is Laurence Leff located?

Laurence Leff practices at 185 N 4th St, Saint Helens, OR 97051. The listed phone number is (503) 366-4526.

What is Laurence Leff's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Laurence Leff was last updated on August 1, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.