Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Matthew J Grbich, D.C.
Chiropractor in Milwaukee, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356371439
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Registry record
Entity type Individual (Type 1)
Name Dr. Matthew J Grbich
Credential D.C.
Sex Male
Practice address 3113 S 13th St, Milwaukee, WI, 53215
Phone (414) 643-6000
Fax (414) 643-6400
Enumeration date Jul 4, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
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 1356371439 active?
Yes, as of the latest NPPES snapshot, NPI 1356371439 is active (record last updated 2007-07-08).
How do I verify Matthew Grbich's NPI record?
Cross-check NPI 1356371439 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.