SHEFFER PSYCHOLOGICAL SERVICES, PLLC
NPI 1952809535
Psychologist - Clinical in Libertyville, IL

Q: What is Sheffer Psychological Services, PLLC's NPI number?

The NPI number for Sheffer Psychological Services, PLLC is 1952809535. It was assigned to this organization in the NPPES registry on January 29, 2018.

Q: What is Sheffer Psychological Services, PLLC's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Active since January 29, 2018

1590 S MILWAUKEE AVE STE 309, LIBERTYVILLE, IL 60048(847) 807-6236 Get Directions Write a Review

NPPES record last updated: March 28, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 28, 2026, Mar 27, 2018, Feb 19, 2018 (3 updates tracked since 2018).

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About Sheffer Psychological Services, Pllc NPPES

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

SHEFFER PSYCHOLOGICAL SERVICES, PLLC (NPI 1952809535) is a healthcare organization registered as a clinical in Libertyville, Illinois and active in the NPI registry since January 2018. The organization lists Erin Sheffer, Clinical Psychologist, as its authorized official.

NPPES Registry Identity

NPI1952809535

Entity TypeOrganization

Primary Taxonomy103TC0700X

Legal Business NameSHEFFER PSYCHOLOGICAL SERVICES, PLLC

Location Address1590 S MILWAUKEE AVE STE 309Libertyville, IL 60048-3786

Mailing Address1590 S Milwaukee Ave Ste 309Libertyville, IL 60048-3786 · (847) 807-6236

Phone(847) 807-6236

Organization SubpartNo

Authorized OfficialErin ShefferClinical Psychologist · (847) 807-6236

Enumeration DateJanuary 29, 2018

Last NPPES UpdateMarch 28, 20263 updates tracked since enumeration

NPPES CertifiedMarch 28, 2026

✔ NPI 1952809535 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in IL · 071008931

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

1590 S MILWAUKEE AVE STE 309, Libertyville, IL 60048

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sheffer Psychological Services, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Sheffer Psychological Services, PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Erin Sheffer

Clinical Psychologist

NPI 1831589654

1590 S MILWAUKEE AVE STE 309
Libertyville, IL 60048

(847) 376-0125

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Sheffer Psychological Services, PLLC's NPI number?

The NPI number for Sheffer Psychological Services, PLLC is 1952809535. It was assigned to this organization in the NPPES registry on January 29, 2018.

Where is Sheffer Psychological Services, PLLC located?

Sheffer Psychological Services, PLLC is located at 1590 S Milwaukee Ave Ste 309, Libertyville, IL 60048. The listed phone number is (847) 807-6236.

What is Sheffer Psychological Services, PLLC's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Sheffer Psychological Services, PLLC enrolled in Medicare?

Yes. Sheffer Psychological Services, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sheffer Psychological Services, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Sheffer Psychological Services, PLLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Sheffer Psychological Services, PLLC was last updated on March 28, 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.