1. Home
  2. Directory
  3. Illinois
  4. Orland Park
  5. Internal Medicine
  6. NPI Profile

TJ SIDDIQUI INC
NPI 1053546820
Internal Medicine - Infectious Disease in Orland Park, IL

Active since May 22, 2009
11113 WOODSTOCK DR, ORLAND PARK, IL 60467(708) 351-0292 Get Directions Write a Review

NPPES record last updated: May 27, 2009. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Tj Siddiqui Inc NPPES

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

TJ SIDDIQUI INC (NPI 1053546820) is a healthcare organization registered as an infectious disease in Orland Park, Illinois and active in the NPI registry since May 2009. The organization lists Tahseen J Siddiqui, Owner, as its authorized official.

NPPES Registry Identity

NPI1053546820
Entity TypeOrganization
Primary Taxonomy207RI0200X
Legal Business NameTJ SIDDIQUI INC
Location Address11113 WOODSTOCK DROrland Park, IL 60467-7611
Mailing Address11113 Woodstock DrOrland Park, IL 60467-7611
Phone(708) 351-0292
Organization SubpartNo
Authorized OfficialTahseen J SiddiquiOwner · (708) 351-0292
Enumeration DateMay 22, 2009
Last NPPES UpdateMay 27, 2009
✔ NPI 1053546820 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in IL · 036.105217
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
11113 WOODSTOCK DR, Orland Park, IL 60467
Open in Google Maps ↗

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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Tj Siddiqui Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Tj Siddiqui Inc, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (7)

Tahseen Siddiqui, M. D.
Internal Medicine
NPI 1487715264
11113 WOODSTOCK DR
Orland Park, IL 60467
(708) 351-0292
✔ PECOS✔ Accepts MedicareSame address
Mateo Betanzos, FNP/BC
Nurse Practitioner
NPI 1457767998
1337 W 19TH ST
Chicago, IL 60608
(312) 563-9517
✔ PECOS✔ Accepts Medicare19 mi
Zimuzo Nelson, FNP-C
Nurse Practitioner
NPI 1356817175
2331 W CHICAGO AVE
Chicago, IL 60622
(773) 772-7858
✔ PECOS✔ Accepts Medicare21 mi
Patricia Ludwikowska
Nurse Practitioner
NPI 1699319723
5352 N LINCOLN AVE
Chicago, IL 60625
(773) 353-5047
✔ PECOS✔ Accepts Medicare26 mi
Teia Atwood, NP-C
Nurse Practitioner
NPI 1205165222
5250 OLD ORCHARD RD STE 300
Skokie, IL 60077
(847) 920-0902
✔ PECOS✔ Accepts Medicare30 mi
Deepak Ariga, MD
Infectious Disease
NPI 1700845260
373 SUMMIT ST
Elgin, IL 60120
(844) 599-3700
✔ PECOS✔ Accepts Medicare35 mi
Samantha Peterson, DO
Internal Medicine
NPI 1659803823
8701 W WATERTOWN PLANK RD
Milwaukee, WI 53226
(414) 805-5916
✔ PECOS✔ Accepts Medicare97 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 Tj Siddiqui Inc's NPI number?

The NPI number for Tj Siddiqui Inc is 1053546820. It was assigned to this organization in the NPPES registry on May 22, 2009.

Where is Tj Siddiqui Inc located?

Tj Siddiqui Inc is located at 11113 Woodstock Dr, Orland Park, IL 60467. The listed phone number is (708) 351-0292.

What is Tj Siddiqui Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Tj Siddiqui Inc enrolled in Medicare?

Yes. Tj Siddiqui Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Tj Siddiqui Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 3 Medicare specialties reassign their Medicare billing to Tj Siddiqui 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. The largest specialties are Nurse Practitioner (4), Internal Medicine (2) and Infectious Disease (1). Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Tj Siddiqui Inc accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Tj Siddiqui Inc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Tj Siddiqui Inc was last updated on May 27, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.