Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JASON THOMAS BEST LCSW
NPI 1154440105
Social Worker - Clinical in Chicago, IL

Q: What is Jason Best's NPI number?

The NPI number for Jason Best is 1154440105. It was assigned to this individual provider in the NPPES registry on March 29, 2007.

Q: What is Jason Best's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Jason Best was last updated on June 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 58 days 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.

Active since March 29, 2007PECOS Enrolled

2650 W MONTROSE AVE STE 102, CHICAGO, IL 60618(847) 271-1222 Get Directions Write a Review

NPPES record last updated: June 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 4, 2024, Dec 18, 2019, Mar 7, 2019 and 1 more (4 updates tracked since 2016).

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About Jason Thomas Best Lcsw NPPES

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

JASON THOMAS BEST LCSW (NPI 1154440105) is an individual clinical provider in Chicago, Illinois, licensed in Illinois (149.012097) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1154440105

Entity TypeIndividualMale

Primary Taxonomy1041C0700X

Provider Legal NameJASON THOMAS BESTCredential: LCSW

Location Address2650 W MONTROSE AVE STE 102Chicago, IL 60618-1562

Mailing Address2650 W Montrose Ave Ste 102Chicago, IL 60618-1562 · (773) 377-5261

Phone(847) 271-1222

Sole ProprietorNo

Enumeration DateMarch 29, 2007

Last NPPES UpdateJune 13, 20264 updates tracked since enumeration

NPPES CertifiedJune 13, 2026

✔ NPI 1154440105 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 IL · 149.012097

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.

2650 W MONTROSE AVE STE 102, Chicago, IL 60618

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jason Thomas Best Lcsw 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 60618 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 $60.08 – $183.39

Typical copayment $0.00 (range $15.02 – $45.84)

Most-billed visit code NA

Established Patient

$74.80 typical visit price

range $18.97 – $148.12

Typical copayment $18.70 (range $4.74 – $37.03)

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 20

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

MELANIE AMIDEI LSW

Counselor (Mental Health)