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GILLIAN SLEEMAN MA, LMFT
NPI 1740509017
Marriage & Family Therapist in Lake Oswego, OR

Active since May 25, 2010
470 2ND ST, LAKE OSWEGO, OR 97034(503) 234-9591 Get Directions Write a Review

NPPES record last updated: October 25, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Gillian Sleeman Ma, Lmft NPPES

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

GILLIAN SLEEMAN MA, LMFT (NPI 1740509017) is an individual marriage & family therapist in Lake Oswego, Oregon and active in the NPI registry since May 2010.

NPPES Registry Identity

NPI1740509017
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameGILLIAN SLEEMANCredential: MA, LMFT
Location Address470 2ND STLake Oswego, OR 97034-3199
Mailing Address960 Capilano CtLake Oswego, OR 97034-1643 · (503) 710-4613
Phone(503) 234-9591
Sole ProprietorYes
Enumeration DateMay 25, 2010
Last NPPES UpdateOctober 25, 2023
NPPES CertifiedOctober 25, 2023
✔ NPI 1740509017 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
470 2ND ST, Lake Oswego, OR 97034
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc..Insurance ›

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. DEBBIE ANN LEAS LMFT
Marriage & Family Therapist
470 2ND ST
LAKE OSWEGO, OR 97034
Clackamas County (503) 826-4949

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 Gillian Sleeman's NPI number?

The NPI number for Gillian Sleeman is 1740509017. It was assigned to this individual provider in the NPPES registry on May 25, 2010.

Where is Gillian Sleeman located?

Gillian Sleeman practices at 470 2nd St, Lake Oswego, OR 97034. The listed phone number is (503) 234-9591.

What is Gillian Sleeman's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

What insurance does Gillian Sleeman accept?

Health plans from Moda Health Plan, Inc. list Gillian Sleeman 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 Gillian Sleeman was last updated on October 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.