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MS. EMILY ELIZABETH MASON M.S.W.
NPI 1427112481
Social Worker - Clinical in Perris, CA

Active since December 21, 2006PECOS Enrolled
83.78/100
CMS Quality Rating
21705 MARTIN ST, PERRIS, CA 92570(415) 601-0977 Get Directions Write a Review

NPPES record last updated: October 7, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Oct 7, 2025, Mar 23, 2021, Nov 14, 2019 (3 updates tracked since 2019).

About Ms. Emily Elizabeth Mason M.s.w. NPPES

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

MS. EMILY ELIZABETH MASON M.S.W. (NPI 1427112481) is an individual clinical provider in Perris, California, licensed in (L8218) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1427112481
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. EMILY ELIZABETH MASONCredential: M.S.W.
Location Address21705 MARTIN STPerris, CA 92570-7316
Mailing Address24055 Clinton Keith Rd Apt 102Wildomar, CA 92595-8520 · (415) 601-0977
Phone(415) 601-0977
Sole ProprietorNo
Enumeration DateDecember 21, 2006
Last NPPES UpdateOctober 7, 20253 updates tracked since enumeration
NPPES CertifiedOctober 7, 2025
✔ NPI 1427112481 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 · L8218
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.
21705 MARTIN ST, Perris, CA 92570
Open in Google Maps ↗

Other Identifiers 2

OtherL8218OR · Lcsw
Other61720CA · Lcsw

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Emily Elizabeth Mason M.s.w. 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92570 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 $59.60 – $179.42
Typical copayment $0.00 (range $14.90 – $44.85)
Most-billed visit code NA
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

83.78/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality82.08
Promoting Interoperability100
Improvement Activities40
Cost63.86

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.

NEIGHBORHOOD HEALTHCARE
Clinic/Center (Federally Qualified Health Center (FQHC))
21705 MARTIN ST
PERRIS, CA 92570
Riverside County (833) 867-4642
DR. LARA MICHELLE JACOBSON M.D.
Pediatrics
21705 MARTIN ST
PERRIS, CA 92570
Riverside County (833) 867-4642
HEATHER MARGARET KNIGHT
Physician Assistant (Medical)
21705 MARTIN ST
PERRIS, CA 92570
Riverside County (833) 867-4642

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 Emily Mason's NPI number?

The NPI number for Emily Mason is 1427112481. It was assigned to this individual provider in the NPPES registry on December 21, 2006.

Where is Emily Mason located?

Emily Mason practices at 21705 Martin St, Perris, CA 92570. The listed phone number is (415) 601-0977.

What is Emily Mason's specialty?

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

Is Emily Mason enrolled in Medicare?

Yes. Emily Mason is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Emily Mason was last updated on October 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.