Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

UNITED DOCTORS LAB INC
NPI 1891511309
Pathology - Anatomic Pathology & Clinical Pathology in Oakbrook Terrace, IL

Q: What is United Doctors Lab Inc's NPI number?

The NPI number for United Doctors Lab Inc is 1891511309. It was assigned to this organization in the NPPES registry on November 29, 2024.

Q: What is United Doctors Lab Inc's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Active since November 29, 2024

1 TRANSAM PLAZA DR STE 16A, OAKBROOK TERRACE, IL 60181(630) 440-7786 Get Directions Write a Review

NPPES record last updated: October 9, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 9, 2026, Mar 5, 2026 (2 updates tracked since 2026).

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About United Doctors Lab Inc NPPES

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

UNITED DOCTORS LAB INC (NPI 1891511309) is a healthcare organization registered as an anatomic pathology & clinical pathology in Oakbrook Terrace, Illinois and active in the NPI registry since November 2024. The organization lists Seyedehsogol Niknezhad, President, as its authorized official.

NPPES Registry Identity

NPI1891511309

Entity TypeOrganization

Primary Taxonomy207ZP0102X

Legal Business NameUNITED DOCTORS LAB INC

Location Address1 TRANSAM PLAZA DR STE 16AOakbrook Terrace, IL 60181-4822

Mailing Address1 Transam Plaza Dr Ste 16aOakbrook Terrace, IL 60181-4822 · (872) 226-0303

Phone(630) 440-7786

Organization SubpartNo

Authorized OfficialSeyedehsogol NiknezhadPresident · (872) 226-0303

Enumeration DateNovember 29, 2024

Last NPPES UpdateOctober 9, 20262 updates tracked since enumeration

NPPES CertifiedOctober 9, 2026

✔ NPI 1891511309 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians

Taxonomy Code207ZP0102X

Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Also ListedPathology · Anatomic PathologyTaxonomy 207ZP0101X

Also ListedClinical Medical LaboratoryTaxonomy 291U00000X

1 TRANSAM PLAZA DR STE 16A, Oakbrook Terrace, IL 60181

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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)

United Doctors Lab Inc 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 United Doctors Lab Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Jameel Brown, MD

Pathology

NPI 1588709620

9601 BAPTIST HEALTH DR SUITE 690
Little Rock, AR 72205

(501) 227-8422

✔ PECOS✔ Accepts Medicare545 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 United Doctors Lab Inc's NPI number?

The NPI number for United Doctors Lab Inc is 1891511309. It was assigned to this organization in the NPPES registry on November 29, 2024.

Where is United Doctors Lab Inc located?

United Doctors Lab Inc is located at 1 Transam Plaza Dr Ste 16A, Oakbrook Terrace, IL 60181. The listed phone number is (630) 440-7786.

What is United Doctors Lab Inc's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is United Doctors Lab Inc enrolled in Medicare?

Yes. United Doctors Lab Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through United Doctors Lab Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Pathology) reassigns their Medicare billing to United Doctors Lab Inc. 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 United Doctors Lab Inc was last updated on October 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.