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MS. RUTH MELLENTHIN LCSW
NPI 1104206655
Social Worker - Clinical in Mt Prospect, IL

Active since May 30, 2015PECOS Enrolled
1803 W WILLOW LN, MT PROSPECT, IL 60056(312) 810-2601 Get Directions Write a Review

NPPES record last updated: July 14, 2016. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Ms. Ruth Mellenthin Lcsw NPPES

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

MS. RUTH MELLENTHIN LCSW (NPI 1104206655) is an individual clinical provider in Mt Prospect, Illinois, licensed in Illinois (149-018650) and active in the NPI registry since May 2015. She is enrolled in Medicare PECOS and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2006).

NPPES Registry Identity

NPI1104206655
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. RUTH MELLENTHINCredential: LCSW
Location Address1803 W WILLOW LNMt Prospect, IL 60056-4412
Mailing Address1803 W Willow LnMt Prospect, IL 60056-4412 · (312) 810-2601
Phone(312) 810-2601
Sole ProprietorYes
Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 2006
Enumeration DateMay 30, 2015
Last NPPES UpdateJuly 14, 2016
✔ NPI 1104206655 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 IL · 149-018650
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 ListedSocial WorkerTaxonomy 104100000X · License 150-013328 (IL)
1803 W WILLOW LN, Mt Prospect, IL 60056
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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)

Ms. Ruth Mellenthin Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6800182536
PECOS Enrollment IDI20160907001095
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 Ruth Mellenthin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Rodasi LLC
9.2 mi
Mental Health
2500 W HIGGINS RD STE 105
Hoffman Estates, IL 60169
  • Reassigned Medicare billing, Illinois enrollment
  • 50 clinicians in this Medicare group
NPI 1467691790 (888) 870-1775

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 60056 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.

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 Ruth Mellenthin's NPI number?

The NPI number for Ruth Mellenthin is 1104206655. It was assigned to this individual provider in the NPPES registry on May 30, 2015.

Where is Ruth Mellenthin located?

Ruth Mellenthin practices at 1803 W Willow Ln, Mt Prospect, IL 60056. The listed phone number is (312) 810-2601.

What is Ruth Mellenthin's specialty?

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

Is Ruth Mellenthin enrolled in Medicare?

Yes. Ruth Mellenthin is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ruth Mellenthin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ruth Mellenthin reassigns Medicare benefits to Rodasi LLC (Hoffman Estates, IL). 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 Ruth Mellenthin'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 Ruth Mellenthin was last updated on July 14, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.