Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mallory Paulette Kosow

Physician Assistant in Oak Lawn, IL · enumerated 2021 · practices at Midwest Surgical Group Sc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1548930431

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mallory Paulette Kosow

Sex Female

Practice address 4400 W 95th St Ste 413, Oak Lawn, IL, 60453

Phone (708) 346-4055

Enumeration date Sep 14, 2021

Last updated in NPPES Dec 16, 2025

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 085.008163 (IL) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Mallory Kosow?

Mallory Kosow is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Midwest Surgical Group Sc Surgery Physician · Oak Lawn, FL NPI 1407945207 Paul Balash Surgery Physician · Oak Lawn, IL NPI 1073741625 Ameer Gomberawalla Surgery Physician · Oak Lawn, IL NPI 1659671675 Jason Zimmermann Surgery Physician · Oak Lawn, IL NPI 1083001077

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-16.