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

GUILLAUME COUNSELING SERVICES PC
NPI 1417420001
Marriage & Family Therapist in Portland, OR

Active since January 07, 2019
4850 SW SCHOLLS FERRY RD STE 109, PORTLAND, OR 97225(503) 922-3360(971) 352-4229 Get Directions Write a Review

NPPES record last updated: October 22, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 14, 2026, Apr 6, 2026, Sep 2, 2025 and 10 more (13 updates tracked since 2019).

About Guillaume Counseling Services Pc NPPES

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

GUILLAUME COUNSELING SERVICES PC (NPI 1417420001), doing business as Guillaume Counseling, is a healthcare organization registered as a marriage & family therapist in Portland, Oregon and active in the NPI registry since January 2019. The organization lists Nahomie Moise Guillaume, President, as its authorized official.

NPPES Registry Identity

NPI1417420001
Entity TypeOrganization
Primary Taxonomy106H00000X
Legal Business NameGUILLAUME COUNSELING SERVICES PC
Location Address4850 SW SCHOLLS FERRY RD STE 109Portland, OR 97225-1691
Mailing Address20333 State Highway 249 Ste 200Houston, TX 77070-2613 · (503) 922-3360 · Fax (971) 352-4229
Fax(971) 352-4229
Organization SubpartNo
Authorized OfficialNahomie Moise GuillaumePresident · (503) 922-3360
Enumeration DateJanuary 7, 2019
Last NPPES UpdateOctober 22, 202613 updates tracked since enumeration
NPPES CertifiedOctober 22, 2026
✔ NPI 1417420001 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ 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.
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X
Also ListedCounselor · ProfessionalTaxonomy 101YP2500X
Also ListedSocial Worker · ClinicalTaxonomy 1041C0700X
4850 SW SCHOLLS FERRY RD STE 109, Portland, OR 97225

Other Names 2

Doing Business AsGuillaume Counseling
Doing Business AsGuillaume Marriage And Family Counseling

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Guillaume Counseling Services Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Guillaume Counseling Services PC, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Marriage and Family Therapist
NPI 1609085661
8885 SW CANYON RD STE 118
Portland, OR 97225
(503) 922-3360
✔ PECOS1.2 mi
Clinical Social Worker
NPI 1437779816
3242 NE 3RD AVE # 1057
Camas, WA 98607
(360) 818-4463
✔ PECOS✔ Accepts Medicare20 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Guillaume Counseling Services PC's NPI number?

The NPI number for Guillaume Counseling Services PC is 1417420001. It was assigned to this organization in the NPPES registry on January 7, 2019. The provider is doing business as Guillaume Counseling and Guillaume Marriage and Family Counseling.

Where is Guillaume Counseling Services PC located?

Guillaume Counseling Services PC is located at 4850 SW Scholls Ferry Rd Ste 109, Portland, OR 97225. The listed phone number is (503) 922-3360.

What is Guillaume Counseling Services PC's specialty?

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

Is Guillaume Counseling Services PC enrolled in Medicare?

Yes. Guillaume Counseling Services PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Guillaume Counseling Services PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Guillaume Counseling Services PC, in Clinical Social Worker and Marriage and Family Therapist. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Guillaume Counseling Services PC accept?

Health plans from Moda Health Plan, Inc. list Guillaume Counseling Services PC 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 Guillaume Counseling Services PC was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.