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ZAKI A SIDDIQUI M.D.
NPI 1366534729
Pediatrics in Chicago, IL

Active since September 29, 2006PECOS Enrolled
2515 W LAWRENCE AVE, CHICAGO, IL 60625(773) 989-3344(773) 989-8458 Get Directions Write a Review

NPPES record last updated: November 7, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Zaki A Siddiqui M.d. NPPES

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

ZAKI A SIDDIQUI M.D. (NPI 1366534729) is an individual pediatrics provider in Chicago, Illinois, licensed in Illinois (036100955) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366534729
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameZAKI A SIDDIQUICredential: M.D.
Location Address2515 W LAWRENCE AVEChicago, IL 60625-3679
Mailing Address2515 W Lawrence AveChicago, IL 60625-3679 · (773) 989-3344 · Fax (773) 989-8458
Phone(773) 989-3344
Fax(773) 989-8458
Sole ProprietorYes
Enumeration DateSeptember 29, 2006
Last NPPES UpdateNovember 7, 2024
NPPES CertifiedNovember 7, 2024
✔ NPI 1366534729 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in IL · 036100955
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
2515 W LAWRENCE AVE, Chicago, IL 60625
Open in Google Maps ↗

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Zaki A Siddiqui M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Zaki Siddiqui reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Omni Health.P.C
Same address
Pediatrics
2501 W LAWRENCE AVE, UNIT# C
Chicago, IL 60625
  • Reassigned Medicare billing, Illinois enrollment
  • 3 clinicians in this Medicare group
NPI 1255487641 (773) 989-3344

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60625 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ISHRAT OSMAN M.D.
Internal Medicine
2515 W LAWRENCE AVE
CHICAGO, IL 60625
Cook County (773) 989-3344

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 Zaki Siddiqui's NPI number?

The NPI number for Zaki Siddiqui is 1366534729. It was assigned to this individual provider in the NPPES registry on September 29, 2006.

Where is Zaki Siddiqui located?

Zaki Siddiqui practices at 2515 W Lawrence Ave, Chicago, IL 60625. The listed phone number is (773) 989-3344.

What is Zaki Siddiqui's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Zaki Siddiqui enrolled in Medicare?

Yes. Zaki Siddiqui is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Zaki Siddiqui's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Zaki Siddiqui reassigns Medicare benefits to Omni Health.P.C (Chicago, IL). The 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 Zaki Siddiqui's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Zaki Siddiqui accept?

Health plans from Oscar Health list Zaki Siddiqui 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 Zaki Siddiqui was last updated on November 7, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.