1. Home
  2. Directory
  3. California
  4. Long Beach
  5. Marriage Family Therapist
  6. NPI Profile

IVETTE SIZEMORE LMFT
NPI 1013324474
Marriage & Family Therapist in Long Beach, CA

Active since July 17, 2014PECOS Enrolled
1501 HUGHES WAY STE 100, LONG BEACH, CA 90810(310) 221-6336 Get Directions Write a Review

NPPES record last updated: December 8, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 13, 2024, Dec 8, 2022, Dec 16, 2019 and 4 more (7 updates tracked since 2016).

About Ivette Sizemore Lmft NPPES

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

IVETTE SIZEMORE LMFT (NPI 1013324474) is an individual marriage & family therapist in Long Beach, California, licensed in California (107612) and active in the NPI registry since July 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1013324474
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameIVETTE SIZEMORECredential: LMFT
Location Address1501 HUGHES WAY STE 100Long Beach, CA 90810-1877
Mailing Address1501 Hughes Way Ste 150Long Beach, CA 90810-1878 · (310) 221-6336 · Fax (310) 221-6350
Phone(310) 221-6336
Sole ProprietorNo
Enumeration DateJuly 17, 2014
Last NPPES UpdateDecember 8, 20227 updates tracked since enumeration
NPPES CertifiedDecember 8, 2022
✔ NPI 1013324474 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 · 107612
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.
1501 HUGHES WAY STE 100, Long Beach, CA 90810
Open in Google Maps ↗

Other Names 1

Former Name (1)Ivette Diaz

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ivette Sizemore 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 Reassignments

2

Medicare enrollment records show Ivette Sizemore reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cyti Health PC
98 mi
Mental Health (Including Community Mental Health Center)
402 W BROADWAY STE 400
San Diego, CA 92101
  • Reassigned Medicare billing, California enrollment
  • 545 clinicians in this Medicare group
NPI 1679172290 (866) 478-3978
Behavior Health & Wellness Center, LLC
2,346 mi
Behavior Analyst
11824 FISHING POINT DR STE B
Newport News, VA 23606
  • Reassigned Medicare billing, California enrollment
  • 5 clinicians in this Medicare group
NPI 1962736595 (757) 599-0012

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 20

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

CASSAUNDRA CRISOLOGO
Community Health Worker
1501 HUGHES WAY STE 100
LONG BEACH, CA 90810
Los Angeles County (310) 221-6336
AMY LYNNE SHANNON LVN
Licensed Vocational Nurse
1501 HUGHES WAY STE 100
LONG BEACH, CA 90810
Los Angeles County (310) 221-6336
CARINA DE JESUS SOLIS
Case Manager/Care Coordinator
1501 HUGHES WAY STE 100
LONG BEACH, CA 90810
Los Angeles County (310) 221-6336
CASSANDRA J CHAMBERS
Marriage & Family Therapist
1501 HUGHES WAY STE 100
LONG BEACH, CA 90810
Los Angeles County (310) 221-6336
ALEXANDRIA DILLEY
Marriage & Family Therapist
1501 HUGHES WAY STE 100
LONG BEACH, CA 90810
Los Angeles County (310) 221-6336
JORDAN SAXON
Marriage & Family Therapist
1501 HUGHES WAY STE 100
LONG BEACH, CA 90810
Los Angeles County (310) 221-6336
EDGAR RUBEN VILLAFANA AMFT
Marriage & Family Therapist
1501 HUGHES WAY STE 100
LONG BEACH, CA 90810
Los Angeles County (310) 221-6336
RAMONA BENNER
Marriage & Family Therapist
1501 HUGHES WAY STE 100
LONG BEACH, CA 90810
Los Angeles County (310) 221-6336

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 Ivette Sizemore's NPI number?

The NPI number for Ivette Sizemore is 1013324474. It was assigned to this individual provider in the NPPES registry on July 17, 2014. The provider is also known as Ivette Diaz.

Where is Ivette Sizemore located?

Ivette Sizemore practices at 1501 Hughes Way Ste 100, Long Beach, CA 90810. The listed phone number is (310) 221-6336.

What is Ivette Sizemore's specialty?

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

Is Ivette Sizemore enrolled in Medicare?

Yes. Ivette Sizemore is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ivette Sizemore's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ivette Sizemore reassigns Medicare benefits to 2 organizations: Cyti Health PC (San Diego, CA) and Behavior Health & Wellness Center, LLC (Newport News, VA). Each 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 Ivette Sizemore'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 Ivette Sizemore was last updated on December 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.