NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Medbilling LLC

Orthopaedic Surgery Physician in Creve Coeur, MO · enumerated 2018 · authorized official William Kostman, Owner.

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

National Provider Identifier

1255835054

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Medbilling LLC
Other name <Unavail>
Practice address 10448 Old Olive Street Rd Ste 200, Creve Coeur, MO, 63141
Fax (480) 351-7061
Enumeration date Mar 19, 2018
Last updated in NPPES May 28, 2025

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 113686 (MO) Primary

Authorized official

Name William Kostman
Title Owner

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

What is the NPI number for Medbilling LLC?
The NPI for Medbilling LLC is 1255835054, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Medbilling LLC?
NPPES lists William Kostman (Owner) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-28.