Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Commonwealth Medical Group, LLC

Internal Medicine Physician in West Allis, WI · enumerated 2006 · authorized official John Mutschelknaus, Executive Director.

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

National Provider Identifier

1477500361

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Registry record

Entity type Organization (Type 2)

Legal business name Commonwealth Medical Group, LLC

Practice address 851 S 70th St, Suite 101, West Allis, WI, 53214

Phone (414) 777-5100

Fax (414) 777-5112

Enumeration date May 27, 2006

Last updated in NPPES Oct 9, 2007

Taxonomy & classification

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 1314-029 (WI) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians Secondary

207UN0901X Nuclear Cardiology Physician Allopathic & Osteopathic Physicians Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians Secondary

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians Secondary

2085U0001X Diagnostic Ultrasound Physician Allopathic & Osteopathic Physicians Secondary

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

2251H1200X Hand Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name John Mutschelknaus

Title Executive Director

Phone (414) 777-5100

Other identifiers

Identifier	Type	State	Issuer
21251000	Medicaid	WI	-

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 type of organization is Commonwealth Medical Group, LLC?

Commonwealth Medical Group, LLC is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-09.