JAMES P POPP LTD
NPI 1659141844
Counselor - Mental Health in Palatine, IL

Q: What is James P Popp Ltd's NPI number?

The NPI number for James P Popp Ltd is 1659141844. It was assigned to this organization in the NPPES registry on January 8, 2024. The provider is doing business as Debra Kowalczyk, MA, LCPC.

Q: What is James P Popp Ltd's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: When was this NPI record last updated?

The NPPES record for James P Popp Ltd was last updated on January 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since January 08, 2024

1 E NORTHWEST HWY STE 212, PALATINE, IL 60067(708) 280-6538(847) 705-6444 Get Directions Write a Review

NPPES record last updated: January 8, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About James P Popp Ltd NPPES

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

JAMES P POPP LTD (NPI 1659141844), doing business as Debra Kowalczyk, Ma, Lcpc, is a healthcare organization registered as a mental health in Palatine, Illinois and active in the NPI registry since January 2024. The organization lists Debra Ann Kowalczyk, Vice President/secretary, as its authorized official.

NPPES Registry Identity

NPI1659141844

Entity TypeOrganization

Primary Taxonomy101YM0800X

Legal Business NameJAMES P POPP LTD

Location Address1 E NORTHWEST HWY STE 212Palatine, IL 60067-1700

Mailing Address1519 N Dryden AveArlington Heights, IL 60004-4031 · (708) 280-6538 · Fax (847) 705-6444

Phone(708) 280-6538

Fax(847) 705-6444

Organization SubpartYes

Authorized OfficialDebra Ann KowalczykVice President/secretary · (708) 280-6538

Enumeration DateJanuary 8, 2024

NPPES CertifiedJanuary 8, 2024

✔ NPI 1659141844 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

1 E NORTHWEST HWY STE 212, Palatine, IL 60067

Open in Google Maps ↗

Other Names 1

Doing Business AsDebra Kowalczyk, Ma, Lcpc

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)

James P Popp Ltd 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 James P Popp Ltd, which bills Medicare for the services this clinician delivers.

Clinician (1)

Debra Kowalczyk, M.A., LCPC

Mental Health Counselor

NPI 1538129036

1 E NORTHWEST HWY SUITE 212
Palatine, IL 60067

(708) 280-6538

✔ PECOS✔ Accepts Medicare11 mi

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 James P Popp Ltd's NPI number?

The NPI number for James P Popp Ltd is 1659141844. It was assigned to this organization in the NPPES registry on January 8, 2024. The provider is doing business as Debra Kowalczyk, MA, LCPC.

Where is James P Popp Ltd located?

James P Popp Ltd is located at 1 E Northwest Hwy Ste 212, Palatine, IL 60067. The listed phone number is (708) 280-6538.

What is James P Popp Ltd's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is James P Popp Ltd enrolled in Medicare?

Yes. James P Popp Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through James P Popp Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Mental Health Counselor) reassigns their Medicare billing to James P Popp Ltd. 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 James P Popp Ltd was last updated on January 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.