Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael P Williams, M.D.

Emergency Medical Services (Emergency Medicine) Physician in Kalamazoo, MI · enumerated 2006 · practices at Southwestern Michigan Emergency Services, PC.

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

National Provider Identifier

1033158183

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Michael P Williams

Credential M.D.

Sex Male

Practice address 125 S Kalamazoo Mall, Suite 204, Kalamazoo, MI, 49007

Phone (269) 343-3900

Fax (269) 343-5640

Enumeration date Jun 5, 2006

Last updated in NPPES Mar 30, 2010

Taxonomy & licenses

207PE0004X Emergency Medical Services (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License 4301074898 (MI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
10/4398243	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

Where does Michael Williams practice?

The practice location on file with NPPES is in Kalamazoo, MI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Michael Williams?

The National Provider Identifier (NPI) for Michael Williams is 1033158183, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-30.