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MRS. MELISSA CHAIREZ LCSW
NPI 1437783552
Social Worker - Clinical in Imperial, CA

Active since February 27, 2020PECOS Enrolled
120 W ALEJANDRO ST, IMPERIAL, CA 92251(760) 587-0360 Get Directions Write a Review

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

Record update history: Mar 19, 2026, Feb 27, 2020 (2 updates tracked since 2020).

About Mrs. Melissa Chairez Lcsw NPPES

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

MRS. MELISSA CHAIREZ LCSW (NPI 1437783552) is an individual clinical provider in Imperial, California, licensed in California (128076) and active in the NPI registry since February 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1437783552
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. MELISSA CHAIREZCredential: LCSW
Location Address120 W ALEJANDRO STImperial, CA 92251-8835
Mailing AddressPo Box 213Imperial, CA 92251-0213 · (760) 587-0360
Phone(760) 587-0360
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateFebruary 27, 2020
Last NPPES UpdateMarch 19, 20262 updates tracked since enumeration
NPPES CertifiedMarch 19, 2026
✔ NPI 1437783552 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 · 128076
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.
120 W ALEJANDRO ST, Imperial, CA 92251
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Other Names 1

Former Name (1)Melissa Sosa-gomez

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Melissa Chairez Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1557837168
PECOS Enrollment IDI20260420002995
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 Reassignments

2

Medicare enrollment records show Melissa Chairez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Grow Healthcare Group PC
475 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
Sud Specialty Group - Ca
482 mi
Addiction Medicine
4633 OLD IRONSIDES DR STE 304
Santa Clara, CA 95054
  • Reassigned Medicare billing, California enrollment
  • 1,607 clinicians in this Medicare group
NPI 1972138238 (323) 205-7088

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 92251 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 $58.90 – $176.72
Typical copayment $0.00 (range $14.72 – $44.18)
Most-billed visit code NA
Established Patient
$73.20 typical visit price
range $19.28 – $144.68
Typical copayment $18.30 (range $4.82 – $36.17)
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 Melissa Chairez's NPI number?

The NPI number for Melissa Chairez is 1437783552. It was assigned to this individual provider in the NPPES registry on February 27, 2020. The provider is also known as Melissa Sosa-Gomez.

Where is Melissa Chairez located?

Melissa Chairez practices at 120 W Alejandro St, Imperial, CA 92251. The listed phone number is (760) 587-0360.

What is Melissa Chairez's specialty?

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

Is Melissa Chairez enrolled in Medicare?

Yes. Melissa Chairez is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Melissa Chairez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Chairez reassigns Medicare benefits to 2 organizations: Grow Healthcare Group PC (San Jose, CA) and Sud Specialty Group - Ca (Santa Clara, CA). Each 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 Melissa Chairez'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 Melissa Chairez was last updated on March 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.