NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

John S Kostin MD PC

Surgery Physician in Kalamazoo, MI · enumerated 2008 · authorized official Teri Caswell, Billing Coordinator.

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

National Provider Identifier

1932375789

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name John S Kostin MD PC
Practice address 6010 Gull Rd, Kalamazoo, MI, 49048
Fax (269) 385-2657
Enumeration date May 1, 2008
Last updated in NPPES May 1, 2008

Taxonomy & classification

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License JK194300 (MI) Primary

Authorized official

Name Teri Caswell
Title Billing Coordinator

Other identifiers

Identifier Type State Issuer
1210227 Medicaid MI -

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

Who is the authorized official for John S Kostin MD PC?
NPPES lists Teri Caswell (Billing Coordinator) as the authorized official for this organization.
What is the NPI number for John S Kostin MD PC?
The NPI for John S Kostin MD PC is 1932375789, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-01.