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DENISE YOSHIHARA
NPI 1497627004
Social Worker - Clinical in Placentia, CA

Active since September 22, 2025PECOS Enrolled
377 E CHAPMAN AVE STE 230, PLACENTIA, CA 92870(714) 732-1773(714) 782-0885 Get Directions Write a Review

NPPES record last updated: September 22, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Denise Yoshihara NPPES

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

DENISE YOSHIHARA (NPI 1497627004) is an individual clinical provider in Placentia, California, licensed in California (LCSW16465) and active in the NPI registry since September 2025. She is enrolled in Medicare PECOS and is a graduate of Other (1989).

NPPES Registry Identity

NPI1497627004
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameDENISE YOSHIHARA
Location Address377 E CHAPMAN AVE STE 230Placentia, CA 92870-5090
Mailing Address1370 Brea Blvd Ste 210Fullerton, CA 92835-4128
Phone(714) 732-1773
Fax(714) 782-0885
Sole ProprietorNo
Medical School CMSOtherGraduated 1989
Enumeration DateSeptember 22, 2025
NPPES CertifiedSeptember 22, 2025
✔ NPI 1497627004 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · LCSW16465
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
377 E CHAPMAN AVE STE 230, Placentia, CA 92870
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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)

Denise Yoshihara is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2567929391
PECOS Enrollment IDI20260811003947
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 Denise Yoshihara reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Tammy A Ouellette Psy.D. Apc
3.5 mi
Psychologist
1370 BREA BLVD, SUITE 210
Fullerton, CA 92835
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Tammy A Ouellette Psyd Apc
  • 6 clinicians in this Medicare group
NPI 1528246394 (714) 732-1773

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92870 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $62.96 – $187.60
Typical copayment $0.00 (range $15.74 – $46.90)
Most-billed visit code NA
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Denise Yoshihara's NPI number?

The NPI number for Denise Yoshihara is 1497627004. It was assigned to this individual provider in the NPPES registry on September 22, 2025.

Where is Denise Yoshihara located?

Denise Yoshihara practices at 377 E Chapman Ave Ste 230, Placentia, CA 92870. The listed phone number is (714) 732-1773.

What is Denise Yoshihara's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Denise Yoshihara enrolled in Medicare?

Yes. Denise Yoshihara is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Denise Yoshihara's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Denise Yoshihara reassigns Medicare benefits to Tammy A Ouellette Psy.D. Apc (Fullerton, 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 Denise Yoshihara'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 Denise Yoshihara was last updated on September 22, 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.