Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
William James Mackreth, MICP
Paramedic in Anchorage, AK · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427714419
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Registry record
Entity type Individual (Type 1)
Name William James Mackreth
Credential MICP
Sex Male
Practice address 5630 B St, Anchorage, AK, 99518
Phone (907) 441-8559
Enumeration date Nov 13, 2021
Last updated in NPPES Nov 13, 2021
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 William Mackreth?
William Mackreth is registered in NPPES with the primary taxonomy of Paramedic. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Kendra Teeple Emergency Medical Services (Emergency Medicine) Physician · Anchorage, AK NPI 1558026740 Sharon Balogh-Campbell Intermediate Emergency Medical Technician · Anchorage, AK NPI 1184389074 Sally Beach Intermediate Emergency Medical Technician · Anchorage, AK NPI 1720743651 Josiah Renk Medical Technologist · Anchorage, AK NPI 1871258509 Amber Tabios Emergency Medical Services (Emergency Medicine) Physician · Anchorage, AK NPI 1891450425 Spencer Marsh Paramedic · Anchorage, AK NPI 1376209684
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-13.