Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alyssa Marie Martyak
Physician Assistant in Altoona, PA · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033800941
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Registry record
Entity type Individual (Type 1)
Name Alyssa Marie Martyak
Sex Female
Practice address 801 Valley View Blvd, Altoona, PA, 16602
Phone (814) 946-5469
Enumeration date May 19, 2023
Last updated in NPPES May 19, 2023
Taxonomy & licenses
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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Alyssa Martyak?
Alyssa Martyak is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-19.