Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Matthew Mazurczak, RPA-C
Physician Assistant in Amherst, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164539391
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Registry record
Entity type Individual (Type 1)
Name Matthew Mazurczak
Credential RPA-C
Sex Male
Practice address 100 Corporate Pkwy, Suite 112, Amherst, NY, 14226
Phone (716) 839-5858
Enumeration date Aug 24, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 010051 (NY) Primary
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 1164539391 active?
Yes, as of the latest NPPES snapshot, NPI 1164539391 is active (record last updated 2007-07-08).
How do I verify Matthew Mazurczak's NPI record?
Cross-check NPI 1164539391 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.