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.