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KATHRYN CASAMASSIMO
NPI 1205333531
Social Worker - Clinical in Oak Brook, IL

Active since April 12, 2018PECOS EnrolledAccepts Medicare Assignment
2021 MIDWEST RD STE 100C, OAK BROOK, IL 60523(708) 223-8405 Get Directions Write a Review

NPPES record last updated: April 12, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Kathryn Casamassimo NPPES

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

KATHRYN CASAMASSIMO (NPI 1205333531) is an individual clinical provider in Oak Brook, Illinois, licensed in Illinois (149.012427) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2004).

NPPES Registry Identity

NPI1205333531
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameKATHRYN CASAMASSIMO
Location Address2021 MIDWEST RD STE 100COak Brook, IL 60523-1394
Mailing Address3532 Blanchan AveBrookfield, IL 60513-1102 · (630) 697-4442
Phone(708) 223-8405
Sole ProprietorYes
Medical School CMSOtherGraduated 2004
Enumeration DateApril 12, 2018
✔ NPI 1205333531 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 · 149.012427
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.
2021 MIDWEST RD STE 100C, Oak Brook, IL 60523
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Other Names 1

Professional Name (2)Katy Casamassimo Lcsw

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Kathryn Casamassimo is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1456875566
PECOS Enrollment IDI20250515000974
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 60523 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 $59.81 – $181.38
Typical copayment $0.00 (range $14.95 – $45.34)
Most-billed visit code NA
Established Patient
$74.38 typical visit price
range $19.15 – $147.12
Typical copayment $18.59 (range $4.78 – $36.78)
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

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

DR. TIFFANY MICHELE BELLAMY PSYD
Counselor (Mental Health)
2021 MIDWEST RD STE 100C
OAK BROOK, IL 60523
Dupage County (708) 224-8305

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 Kathryn Casamassimo's NPI number?

The NPI number for Kathryn Casamassimo is 1205333531. It was assigned to this individual provider in the NPPES registry on April 12, 2018. The provider is also known as Katy Casamassimo Lcsw.

Where is Kathryn Casamassimo located?

Kathryn Casamassimo practices at 2021 Midwest Rd Ste 100C, Oak Brook, IL 60523. The listed phone number is (708) 223-8405.

What is Kathryn Casamassimo's specialty?

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

Is Kathryn Casamassimo enrolled in Medicare?

Yes. Kathryn Casamassimo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Kathryn Casamassimo was last updated on April 12, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.