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NORTHWEST PHYSICIANS ASSOCIATON
NPI 1982760781
Pediatrics in Houston, TX

Active since December 28, 2006CLIA 45D1046497 · Microscopy
17320 RED OAK DR, SUITE 210, HOUSTON, TX 77090(281) 580-1500(281) 580-1507 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).

About Northwest Physicians Associaton NPPES

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

NORTHWEST PHYSICIANS ASSOCIATON (NPI 1982760781) is a healthcare organization registered as a pediatrics in Houston, Texas and active in the NPI registry since December 2006. The organization holds a CLIA Microscopy certificate valid through October 10, 2027 and lists Yvonne Zeigman, Supervisor, as its authorized official.

NPPES Registry Identity

NPI1982760781
Entity TypeOrganization
Primary Taxonomy208000000X
Legal Business NameNORTHWEST PHYSICIANS ASSOCIATON
Location Address17320 RED OAK DR, SUITE 210Houston, TX 77090-2633
Mailing Address17320 Red Oak Dr, Suite 210Houston, TX 77090-2633
Phone(281) 580-1500
Fax(281) 580-1507
Organization SubpartNo
Authorized OfficialYvonne ZeigmanSupervisor · (281) 465-0500
Enumeration DateDecember 28, 2006
Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration
✔ NPI 1982760781 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
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.
Also ListedInternal MedicineTaxonomy 207R00000X

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

Northwest Physicians Associaton is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Northwest Physicians Associaton, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (2)

Mohammad Siddiqi, MD
Internal Medicine
NPI 1194715326
17320 RED OAK DR SUITE 210
Houston, TX 77090
(281) 580-1500
✔ PECOS✔ Accepts Medicare
Naila Siddiqi, MD
Pediatric Medicine
NPI 1750371167
17320 RED OAK DR SUITE 210
Houston, TX 77090
(281) 465-0500
✔ PECOS

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 for Provider-Performed Microscopy Procedures (PPMP) 45D1046497

Northwest Physicians Association · Houston, TX
Active · expires Oct 10, 2027
CLIA Number45D1046497
Laboratory TypePhysician Office
Certificate Effective DateOctober 11, 2025
Certificate Expiration DateOctober 10, 2027
Laboratory DirectorMohammad I. Siddiqi MD
Laboratory Phone(281) 580-1500
Laboratory LocationNorthwest Physicians Association17320 Red Oak Drive Suite 210, Houston, TX 77090
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform 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 Northwest Physicians Associaton's NPI number?

The NPI number for Northwest Physicians Associaton is 1982760781. It was assigned to this organization in the NPPES registry on December 28, 2006.

Where is Northwest Physicians Associaton located?

Northwest Physicians Associaton is located at 17320 Red Oak Dr Suite 210, Houston, TX 77090. The listed phone number is (281) 580-1500.

What is Northwest Physicians Associaton's specialty?

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

Is Northwest Physicians Associaton enrolled in Medicare?

Yes. Northwest Physicians Associaton is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Northwest Physicians Associaton?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Northwest Physicians Associaton, in Internal Medicine and Pediatric 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 Northwest Physicians Associaton hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 45D1046497) is associated with this NPI, valid through October 10, 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 Northwest Physicians Associaton was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.