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MS. DIANE LYNN HARRISON
NPI 1487962965
Social Worker - Clinical in Laguna Hills, CA

Active since September 19, 2010PECOS Enrolled
23421 S POINTE DR STE 290, LAGUNA HILLS, CA 92653(949) 322-4061 Get Directions Write a Review

NPPES record last updated: May 4, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 4, 2024, Oct 20, 2020, Sep 23, 2020 (3 updates tracked since 2020).

About Ms. Diane Lynn Harrison NPPES

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

MS. DIANE LYNN HARRISON (NPI 1487962965) is an individual clinical provider in Laguna Hills, California, licensed in California (74458) and active in the NPI registry since September 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1487962965
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. DIANE LYNN HARRISON
Location Address23421 S POINTE DR STE 290Laguna Hills, CA 92653-1555
Mailing Address31351 Holly DrLaguna Beach, CA 92651-6942 · (949) 322-4061
Phone(949) 322-4061
Sole ProprietorNo
Enumeration DateSeptember 19, 2010
Last NPPES UpdateMay 4, 20243 updates tracked since enumeration
NPPES CertifiedMay 4, 2024
✔ NPI 1487962965 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 · 74458
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.
23421 S POINTE DR STE 290, Laguna Hills, CA 92653
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Other Names 1

Former Name (1)Ms. Diane Lynn Spedden

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Diane Lynn Harrison 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 Diane Harrison reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Fusion Care Group, A Psychological Professional Corporation
78 mi
Clinical
2271 ALPINE BLVD STE A
Alpine, CA 91901
  • Reassigned Medicare billing, California enrollment
  • 92 clinicians in this Medicare group
NPI 1275177982 (619) 448-1216

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 92653 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.

Other Providers at the Same Location NPPES 2

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

MADISON DAW
Marriage & Family Therapist
23421 S POINTE DR STE 290
LAGUNA HILLS, CA 92653
Orange County (888) 688-0248
LISA J NIINO M.A., LMFT
Marriage & Family Therapist
23421 S POINTE DR STE 290
LAGUNA HILLS, CA 92653
Orange County (888) 688-0248

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 Diane Harrison's NPI number?

The NPI number for Diane Harrison is 1487962965. It was assigned to this individual provider in the NPPES registry on September 19, 2010. The provider is also known as Ms. Diane Lynn Spedden.

Where is Diane Harrison located?

Diane Harrison practices at 23421 S Pointe Dr Ste 290, Laguna Hills, CA 92653. The listed phone number is (949) 322-4061.

What is Diane Harrison's specialty?

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

Is Diane Harrison enrolled in Medicare?

Yes. Diane Harrison is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Diane Harrison's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diane Harrison reassigns Medicare benefits to Fusion Care Group, A Psychological Professional Corporation (Alpine, 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 Diane Harrison'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 Diane Harrison was last updated on May 4, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.