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GENERATIONS FAMILY MEDICINE
NPI 1053441220
Clinic/Center - Primary Care in Naperville, IL

Active since March 06, 2007CLIA 14D1037222 · Waiver
2940 ROLLINGRIDGE RD, SUITE NUMBER 101, NAPERVILLE, IL 60564(630) 637-8630(630) 637-8640 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Generations Family Medicine NPPES

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

GENERATIONS FAMILY MEDICINE (NPI 1053441220) is a healthcare organization registered as a primary care in Naperville, Illinois and active in the NPI registry since March 2007. The organization holds a CLIA Waiver certificate valid through February 16, 2027 and lists Barbara J. Opalka, President, as its authorized official.

NPPES Registry Identity

NPI1053441220
Entity TypeOrganization
Primary Taxonomy261QP2300X
Legal Business NameGENERATIONS FAMILY MEDICINE
Location Address2940 ROLLINGRIDGE RD, SUITE NUMBER 101Naperville, IL 60564-4231
Mailing Address2940 Rollingridge Rd, Suite Number 101Naperville, IL 60564-4231 · (630) 637-8630 · Fax (630) 637-8640
Phone(630) 637-8630
Fax(630) 637-8640
Organization SubpartNo
Authorized OfficialBarbara J. OpalkaPresident · (630) 637-8630
Enumeration DateMarch 6, 2007
Last NPPES UpdateAugust 22, 2020
✔ NPI 1053441220 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Primary CareAmbulatory Health Care Facilities
Taxonomy Code261QP2300X
2940 ROLLINGRIDGE RD, Naperville, IL 60564
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Generations Family Medicine 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 Generations Family Medicine, which bills Medicare for the services this clinician delivers.

Clinician (1)

Barbara Opalka, D.O.
Family Practice
NPI 1063404150
2940 ROLLINGRIDGE RD SUITE 101
Naperville, IL 60564
(630) 637-8630
✔ 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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 14D1037222

Generations Family Medicine B & B Family Medicine Professional Association · Naperville, IL
Active · expires Feb 16, 2027
CLIA Number14D1037222
Laboratory TypePhysician Office
Certificate Effective DateFebruary 17, 2025
Certificate Expiration DateFebruary 16, 2027
Laboratory DirectorBarbara J. Opalka
Laboratory Phone(630) 637-8630
Laboratory LocationGenerations Family Medicine B & B Family Medicine Professional Association1816 Bay Scott Circle, Ste 112, Naperville, IL 60540
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Generations Family Medicine's NPI number?

The NPI number for Generations Family Medicine is 1053441220. It was assigned to this organization in the NPPES registry on March 6, 2007.

Where is Generations Family Medicine located?

Generations Family Medicine is located at 2940 Rollingridge Rd Suite Number 101, Naperville, IL 60564. The listed phone number is (630) 637-8630.

What is Generations Family Medicine's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.

Is Generations Family Medicine enrolled in Medicare?

Yes. Generations Family Medicine is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Generations Family Medicine?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Generations Family Medicine. 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.

Does Generations Family Medicine hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 14D1037222) is associated with this NPI, valid through February 16, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Generations Family Medicine was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.