DR. SHERIF R TOMA PSY.D.
NPI 1336270305
Psychologist in Ontario, CA

Active since March 08, 2007PECOS Enrolled
3333 CONCOURS BLDG 8, ONTARIO, CA 91764(909) 295-5805 Get Directions Write a Review

NPPES record last updated: July 15, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 15, 2026, Dec 12, 2024, Mar 23, 2021 (3 updates tracked since 2021).

About Dr. Sherif R Toma Psy.d. NPPES

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

DR. SHERIF R TOMA PSY.D. (NPI 1336270305) is an individual psychologist in Ontario, California, licensed in California (PSY23960) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS and maintains a secondary practice location in San Dimas.

NPPES Registry Identity

NPI1336270305
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. SHERIF R TOMACredential: PSY.D.
Location Address3333 CONCOURS BLDG 8Ontario, CA 91764-4875
Mailing Address1074 Via RomalesSan Dimas, CA 91773-4422 · (818) 388-0267
Sole ProprietorNo
Enumeration DateMarch 8, 2007
Last NPPES UpdateJuly 15, 20263 updates tracked since enumeration
NPPES CertifiedJuly 15, 2026
✔ NPI 1336270305 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 7

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in CA · PSY23960
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.
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License PSY23960 (CA)
Also ListedPsychologist · CounselingTaxonomy 103TC1900X · License PSY23960 (CA)
Also ListedPsychologist · FamilyTaxonomy 103TF0000X · License PSY23960 (CA)
Also ListedPsychologist · ForensicTaxonomy 103TF0200X · License PSY23960 (CA)
Also ListedPsychologist · Group PsychotherapyTaxonomy 103TP2701X · License PSY23960 (CA)
3333 CONCOURS BLDG 8, Ontario, CA 91764

Secondary Practice Location 1

Location 11074 Via RomalesSan Dimas, CA 91773-4422 · Phone (818) 388-0267

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Sherif R Toma Psy.d. 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 Sherif Toma reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mental Health (Including Community Mental Health Center)
3333 CONCOURS BLDG 8
Ontario, CA 91764
  • Reassigned Medicare billing, California enrollment
  • 27 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 3

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

Counselor (Mental Health)
3333 CONCOURS BLDG 8
ONTARIO, CA 91764
Clinic/Center (Mental Health (Including Community Mental Health Center))
3333 CONCOURS BLDG 8
ONTARIO, CA 91764
Social Worker (Clinical)
3333 CONCOURS BLDG 8
ONTARIO, CA 91764

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 Sherif Toma's NPI number?

The NPI number for Sherif Toma is 1336270305. It was assigned to this individual provider in the NPPES registry on March 8, 2007.

Where is Sherif Toma located?

Sherif Toma practices at 3333 Concours Bldg 8, Ontario, CA 91764. The listed phone number is (909) 295-5805.

What is Sherif Toma's specialty?

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

Is Sherif Toma enrolled in Medicare?

Yes. Sherif Toma is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sherif Toma's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sherif Toma reassigns Medicare benefits to Thrive Psychological Services Inc (Ontario, 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 Sherif Toma'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 Sherif Toma was last updated on July 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.