Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alyssia Marie Koenig
Peer Specialist in Redwood City, CA · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821826157
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Registry record
Entity type Individual (Type 1)
Name Alyssia Marie Koenig
Sex Female
Practice address 280 Edmonds Rd, Bldg B, Redwood City, CA, 94602
Phone (510) 827-6704
Enumeration date Jul 26, 2024
Last updated in NPPES Jul 26, 2024
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 NPI 1821826157 active?
Yes, as of the latest NPPES snapshot, NPI 1821826157 is active (record last updated 2024-07-26).
How do I verify Alyssia Koenig's NPI record?
Cross-check NPI 1821826157 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
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-26.