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ARPI ISAYAN
NPI 1881234227
Social Worker - Clinical in Northridge, CA

Active since January 14, 2020PECOS Enrolled
17301 KNAPP ST, NORTHRIDGE, CA 91325(424) 281-4452 Get Directions Write a Review

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

Record update history: Feb 14, 2022, Jan 14, 2020 (2 updates tracked since 2020).

About Arpi Isayan NPPES

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

ARPI ISAYAN (NPI 1881234227) is an individual clinical provider in Northridge, California, licensed in California (LCSW114572) and active in the NPI registry since January 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1881234227
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameARPI ISAYAN
Location Address17301 KNAPP STNorthridge, CA 91325-2417
Mailing Address14515 Hamlin StVan Nuys, CA 91411-1686 · (818) 373-4993
Phone(424) 281-4452
Sole ProprietorNo
Enumeration DateJanuary 14, 2020
Last NPPES UpdateApril 22, 20252 updates tracked since enumeration
NPPES CertifiedApril 22, 2025
✔ NPI 1881234227 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · LCSW114572
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.
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X · License ASW83856 (CA)
17301 KNAPP ST, Northridge, CA 91325
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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)

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

Grow Healthcare Group PC
286 mi
Mental Health
99 S ALMADEN BLVD STE 600
San Jose, CA 95113
  • Reassigned Medicare billing, California enrollment
  • 3,139 clinicians in this Medicare group
NPI 1154994846 (408) 402-4385

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 91325 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 Arpi Isayan's NPI number?

The NPI number for Arpi Isayan is 1881234227. It was assigned to this individual provider in the NPPES registry on January 14, 2020.

Where is Arpi Isayan located?

Arpi Isayan practices at 17301 Knapp St, Northridge, CA 91325. The listed phone number is (424) 281-4452.

What is Arpi Isayan's specialty?

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

Is Arpi Isayan enrolled in Medicare?

Yes. Arpi Isayan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Arpi Isayan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Arpi Isayan reassigns Medicare benefits to Grow Healthcare Group PC (San Jose, 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 Arpi Isayan'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 Arpi Isayan was last updated on April 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.