JOANNA MENDOZA
NPI 1477920494
Psychologist in Concord, CA

Active since August 25, 2015PECOS Enrolled
2425 BISSO LN, SUITE 200, CONCORD, CA 94520(925) 642-1141 Get Directions Write a Review

NPPES record last updated: January 3, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 3, 2022, Aug 17, 2021 (2 updates tracked since 2021).

About Joanna Mendoza NPPES

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

JOANNA MENDOZA (NPI 1477920494) is an individual psychologist in Concord, California, licensed in California (30948) and active in the NPI registry since August 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477920494
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameJOANNA MENDOZA
Location Address2425 BISSO LN, SUITE 200Concord, CA 94520-4897
Mailing Address3454 Hillcrest AveAntioch, CA 94531-8238 · (925) 777-6303
Sole ProprietorNo
Enumeration DateAugust 25, 2015
Last NPPES UpdateJanuary 3, 20222 updates tracked since enumeration
NPPES CertifiedAugust 17, 2021
✔ NPI 1477920494 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in CA · 30948
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
2425 BISSO LN, Concord, CA 94520

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joanna Mendoza 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 Joanna Mendoza reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
975 SERENO DRIVE
Vallejo, CA 94589
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group

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.

Counselor (Mental Health)
2425 BISSO LN, SUITE 100
CONCORD, CA 94520
Registered Nurse
2425 BISSO LN, 100
CONCORD, CA 94520
Psychiatry & Neurology (Child & Adolescent Psychiatry)
2425 BISSO LN, SITE 280
CONCORD, CA 94520
Registered Nurse
2425 BISSO LN, SUITE 100
CONCORD, CA 94520
Psychologist (Clinical)
2425 BISSO LN, SUITE 100
CONCORD, CA 94520
Counselor (Mental Health)
2425 BISSO LN, SUITE 120
CONCORD, CA 94520
Marriage & Family Therapist
2425 BISSO LN
CONCORD, CA 94520
Registered Nurse (Psychiatric/Mental Health, Adult)
2425 BISSO LN
CONCORD, CA 94520

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 Joanna Mendoza's NPI number?

The NPI number for Joanna Mendoza is 1477920494. It was assigned to this individual provider in the NPPES registry on August 25, 2015.

Where is Joanna Mendoza located?

Joanna Mendoza practices at 2425 Bisso Ln Suite 200, Concord, CA 94520. The listed phone number is (925) 642-1141.

What is Joanna Mendoza's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Joanna Mendoza enrolled in Medicare?

Yes. Joanna Mendoza is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Joanna Mendoza's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joanna Mendoza reassigns Medicare benefits to Permanente Medical Group Inc (Vallejo, 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 Joanna Mendoza'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 Joanna Mendoza was last updated on January 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.