LESLIE ANN GUY LMFT
NPI 1669944948
Marriage & Family Therapist in Los Angeles, CA

Q: What is Leslie Guy's NPI number?

The NPI number for Leslie Guy is 1669944948. It was assigned to this individual provider in the NPPES registry on December 26, 2018.

Q: What is Leslie Guy's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Leslie Guy was last updated on October 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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 December 26, 2018PECOS Enrolled

4418 PORTOLA AVE, LOS ANGELES, CA 90032(626) 407-9843(323) 332-2943 Get Directions Write a Review

NPPES record last updated: October 11, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 11, 2025, Dec 26, 2018 (2 updates tracked since 2018).

On this page

About Leslie Ann Guy Lmft NPPES

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

LESLIE ANN GUY LMFT (NPI 1669944948) is an individual marriage & family therapist in Los Angeles, California, licensed in California (108238) and active in the NPI registry since December 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1669944948

Entity TypeIndividualFemale

Primary Taxonomy106H00000X

Provider Legal NameLESLIE ANN GUYCredential: LMFT

Location Address4418 PORTOLA AVELos Angeles, CA 90032-1130

Mailing Address4418 Portola AveLos Angeles, CA 90032-1130 · (626) 407-9843 · Fax (323) 332-2943

Phone(626) 407-9843

Fax(323) 332-2943

Sole ProprietorNo

Enumeration DateDecember 26, 2018

Last NPPES UpdateOctober 11, 20252 updates tracked since enumeration

NPPES CertifiedOctober 11, 2025

✔ NPI 1669944948 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers

Taxonomy Code106H00000X

License✔ Licensed in CA · 108238

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.

4418 PORTOLA AVE, Los Angeles, CA 90032

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Leslie Ann Guy Lmft is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Leslie Guy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Center For New Directions, Inc.

41 mi

Mental Health

23201 MILL CREEK DR STE 220
Laguna Hills, CA 92653

Reassigned Medicare billing, California enrollment
131 clinicians in this Medicare group

NPI 1578121190 (888) 795-4337

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

Other Providers at the Same Location NPPES

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

OPTIMAL PATH THERAPY INC

Marriage & Family Therapist

4418 PORTOLA AVE
LOS ANGELES, CA 90032

Los Angeles County (626) 407-9843

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 Leslie Guy's NPI number?

The NPI number for Leslie Guy is 1669944948. It was assigned to this individual provider in the NPPES registry on December 26, 2018.

Where is Leslie Guy located?

Leslie Guy practices at 4418 Portola Ave, Los Angeles, CA 90032. The listed phone number is (626) 407-9843.

What is Leslie Guy's specialty?

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

Is Leslie Guy enrolled in Medicare?

Yes. Leslie Guy is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Leslie Guy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leslie Guy reassigns Medicare benefits to Center For New Directions, Inc. (Laguna Hills, CA). The 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 Leslie Guy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Leslie Guy was last updated on October 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.