Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor
Dr. Matthew J Wietrzykowski, MD
Internal Medicine Physician in Hamtramck, MI · enumerated 2005 · practices at Metropolitan Medical Center Pllc.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528040979
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Registry record
Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 4391529 | Medicaid | MI | - |
| 5458769 | Other | MI | AETNA |
| 151659 | Other | MI | GREAT LAKES |
| 1528040979 | Medicaid | MI | - |
| P00029377 | Other | MI | RAILROAD MEDICARE |
| 022808 | Other | MI | MIDWEST HEALTH PLAN |
| 1108269932 | Other | MI | BCBS |
| G76852 | Other | MI | HAP |
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.
Frequently asked questions
Is NPI 1528040979 active?
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Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-14.