NORTHWEST INFECTIOUS DISEASE SERVICES LLC
NPI 1306891551
Internal Medicine - Infectious Disease in Bridgeton, MO

Q: What is Northwest Infectious Disease Services LLC's specialty?

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

Active since May 24, 2006

12774 BOENKER LN, BRIDGETON, MO 63044(314) 291-7997(314) 739-1471 Get Directions Write a Review

NPPES record last updated: December 21, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Northwest Infectious Disease Services Llc NPPES

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

NORTHWEST INFECTIOUS DISEASE SERVICES LLC (NPI 1306891551) is a healthcare organization registered as an infectious disease in Bridgeton, Missouri and active in the NPI registry since May 2006. The organization maintains a secondary practice location in St Louis and lists Phillip G Zinser, Managing Partner, as its authorized official.

NPPES Registry Identity

NPI1306891551

Entity TypeOrganization

Primary Taxonomy207RI0200X

Legal Business NameNORTHWEST INFECTIOUS DISEASE SERVICES LLC

Location Address12774 BOENKER LNBridgeton, MO 63044

Mailing AddressPo Box 776874Chicago, IL 60677-6874 · (314) 291-7997 · Fax (314) 739-1471

Phone(314) 291-7997

Fax(314) 739-1471

Organization SubpartNo

Authorized OfficialPhillip G ZinserManaging Partner · (314) 291-7997

Enumeration DateMay 24, 2006

Last NPPES UpdateDecember 21, 2023

NPPES CertifiedDecember 21, 2023

✔ NPI 1306891551 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

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.

12774 BOENKER LN, Bridgeton, MO 63044

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Secondary Practice Location 1

Location 111125 Dunn Rd, Ste 412St Louis, MO 63136-6148 · Phone (314) 355-7997

Other Identifiers 1

Medicaid507780401MO

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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.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)

Northwest Infectious Disease Services Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 5 clinicians reassign Medicare billing to Northwest Infectious Disease Services LLC, which bills Medicare for the services they deliver. Of these, 4 practice at this address. They are listed nearest first.

Clinicians, nearest first (5)

Shahzad Hasan, MD

Internal Medicine

NPI 1508812579

12774 BOENKER LN
Bridgeton, MO 63044

(314) 291-7997

✔ PECOS✔ Accepts MedicareSame address

Adnan Siddiqui, MD

Infectious Disease

NPI 1134194327

12774 BOENKER LN
Bridgeton, MO 63044

(314) 291-7997

✔ PECOS✔ Accepts MedicareSame address

Kongkeo Walther, ANP

Nurse Practitioner

NPI 1528433430

12774 BOENKER LN
Bridgeton, MO 63044

(314) 291-7997

✔ PECOS✔ Accepts MedicareSame address

Julie Shapiro, D.O.

Infectious Disease

NPI 1831486364

12776 BOENKER LN
Bridgeton, MO 63044

(314) 291-7997

✔ PECOS✔ Accepts MedicareSame address

Sumbul Meraj, M.D.

Infectious Disease

NPI 1285931261

10010 KENNERLY RD
Saint Louis, MO 63128

(314) 525-1000

✔ PECOS✔ Accepts Medicare18 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 Northwest Infectious Disease Services LLC's NPI number?

The NPI number for Northwest Infectious Disease Services LLC is 1306891551. It was assigned to this organization in the NPPES registry on May 24, 2006.

Where is Northwest Infectious Disease Services LLC located?

Northwest Infectious Disease Services LLC is located at 12774 Boenker Ln, Bridgeton, MO 63044. The listed phone number is (314) 291-7997.

What is Northwest Infectious Disease Services LLC's specialty?

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

Is Northwest Infectious Disease Services LLC enrolled in Medicare?

Yes. Northwest Infectious Disease Services LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Northwest Infectious Disease Services LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 3 Medicare specialties reassign their Medicare billing to Northwest Infectious Disease Services LLC. 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 Infectious Disease (3), Internal Medicine (1) and Nurse Practitioner (1). Of these, 4 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Northwest Infectious Disease Services LLC accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Northwest Infectious Disease Services LLC 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 Northwest Infectious Disease Services LLC was last updated on December 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.