TAMMY A OUELLETTE PSY.D. APC
NPI 1528246394
Psychologist in Fullerton, CA

Active since February 04, 2008
1370 BREA BLVD, SUITE 210, FULLERTON, CA 92835(714) 732-1773(714) 441-1761 Get Directions Write a Review

NPPES record last updated: September 19, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Tammy A Ouellette Psy.d. Apc NPPES

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

TAMMY A OUELLETTE PSY.D. APC (NPI 1528246394) is a healthcare organization registered as a psychologist in Fullerton, California and active in the NPI registry since February 2008. The organization lists Tammy Ann Ouellette, Clinical Psychologist/ceo, as its authorized official.

NPPES Registry Identity

NPI1528246394
Entity TypeOrganization
Primary Taxonomy103T00000X
Legal Business NameTAMMY A OUELLETTE PSY.D. APC
Location Address1370 BREA BLVD, SUITE 210Fullerton, CA 92835-4125
Mailing Address1370 Brea Blvd, Suite 210Fullerton, CA 92835-4125 · (714) 732-1773 · Fax (714) 441-1761
Fax(714) 441-1761
Organization SubpartNo
Authorized OfficialTammy Ann OuelletteClinical Psychologist/ceo · (714) 732-1773
Enumeration DateFebruary 4, 2008
Last NPPES UpdateSeptember 19, 2014
✔ NPI 1528246394 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in CA · PSY20145
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.
1370 BREA BLVD, Fullerton, CA 92835

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Tammy A Ouellette Psy.d. Apc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Tammy A Ouellette Psy.D. Apc, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 3 within 10 miles. They are listed nearest first.

Clinicians, nearest first (6)

Clinical Psychologist
NPI 1669432589
1370 BREA BLVD STE 210
Fullerton, CA 92835
(714) 732-1773
✔ PECOS✔ Accepts MedicareSame address
Clinical Social Worker
NPI 1962017103
835 ADLENA DR
Fullerton, CA 92833
(714) 722-4712
✔ PECOS1.9 mi
Clinical Social Worker
NPI 1497627004
377 E CHAPMAN AVE STE 230
Placentia, CA 92870
(714) 732-1773
✔ PECOS3.5 mi
Clinical Social Worker
NPI 1215149240
219 N INDIAN HILL BLVD SUITE 101
Claremont, CA 91711
(909) 438-4554
✔ PECOS✔ Accepts Medicare19 mi
Nurse Practitioner
NPI 1710521646
6200 WILSHIRE BLVD STE 1410
Los Angeles, CA 90048
(925) 282-1778
✔ PECOS28 mi
Nurse Practitioner
NPI 1447854633
195 PAGE MILL RD STE 103
Palo Alto, CA 94306
(888) 731-8984
✔ PECOS340 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 Tammy A Ouellette Psy.D. Apc's NPI number?

The NPI number for Tammy A Ouellette Psy.D. Apc is 1528246394. It was assigned to this organization in the NPPES registry on February 4, 2008.

Where is Tammy A Ouellette Psy.D. Apc located?

Tammy A Ouellette Psy.D. Apc is located at 1370 Brea Blvd Suite 210, Fullerton, CA 92835. The listed phone number is (714) 732-1773.

What is Tammy A Ouellette Psy.D. Apc's specialty?

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

Is Tammy A Ouellette Psy.D. Apc enrolled in Medicare?

Yes. Tammy A Ouellette Psy.D. Apc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Tammy A Ouellette Psy.D. Apc?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 3 Medicare specialties reassign their Medicare billing to Tammy A Ouellette Psy.D. Apc. 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. The largest specialties are Clinical Social Worker (3), Nurse Practitioner (2) and Clinical Psychologist (1). Of these, 1 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Tammy A Ouellette Psy.D. Apc was last updated on September 19, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.